tests/lib/test_ctf_writer.c

   1 /*
   2  * test-ctf-writer.c
   3  *
   4  * CTF Writer test
   5  *
   6  * Copyright 2013 - 2015 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; under version 2 of the License.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include <babeltrace/ctf-writer/writer.h>
  23 #include <babeltrace/ctf-writer/clock.h>
  24 #include <babeltrace/ctf-writer/stream.h>
  25 #include <babeltrace/ctf-writer/event.h>
  26 #include <babeltrace/ctf-writer/event-types.h>
  27 #include <babeltrace/ctf-writer/event-fields.h>
  28 #include <babeltrace/ctf-writer/stream-class.h>
  29 #include <babeltrace/ctf-ir/packet.h>
  30 #include <babeltrace/ctf-ir/clock-class.h>
  31 #include <babeltrace/ref.h>
  32 #include <babeltrace/ctf/events.h>
  33 #include <babeltrace/values.h>
  34 #include <unistd.h>
  35 #include <babeltrace/compat/stdlib.h>
  36 #include <stdio.h>
  37 #include <sys/utsname.h>
  38 #include <babeltrace/compat/limits.h>
  39 #include <babeltrace/compat/stdio.h>
  40 #include <string.h>
  41 #include <assert.h>
  42 #include <sys/wait.h>
  43 #include <fcntl.h>
  44 #include <babeltrace/compat/dirent.h>
  45 #include "tap/tap.h"
  46 #include <math.h>
  47 #include <float.h>
  48 #include "common.h"
  49
  50 #define METADATA_LINE_SIZE 512
  51 #define SEQUENCE_TEST_LENGTH 10
  52 #define ARRAY_TEST_LENGTH 5
  53 #define PACKET_RESIZE_TEST_LENGTH 100000
  54
  55 #define DEFAULT_CLOCK_FREQ 1000000000
  56 #define DEFAULT_CLOCK_PRECISION 1
  57 #define DEFAULT_CLOCK_OFFSET 0
  58 #define DEFAULT_CLOCK_OFFSET_S 0
  59 #define DEFAULT_CLOCK_IS_ABSOLUTE 0
  60 #define DEFAULT_CLOCK_TIME 0
  61 #define DEFAULT_CLOCK_VALUE 0
  62
  63 #define NR_TESTS 596
  64
  65 static int64_t current_time = 42;
  66
  67 /* Return 1 if uuids match, zero if different. */
  68 static
  69 int uuid_match(const unsigned char *uuid_a, const unsigned char *uuid_b)
  70 {
  71         int ret = 0;
  72         int i;
  73
  74         if (!uuid_a || !uuid_b) {
  75                 goto end;
  76         }
  77
  78         for (i = 0; i < 16; i++) {
  79                 if (uuid_a[i] != uuid_b[i]) {
  80                         goto end;
  81                 }
  82         }
  83
  84         ret = 1;
  85 end:
  86         return ret;
  87 }
  88
  89 static
  90 void validate_metadata(char *parser_path, char *metadata_path)
  91 {
  92         int ret = 0;
  93         char parser_output_path[] = "/tmp/parser_output_XXXXXX";
  94         int parser_output_fd = -1, metadata_fd = -1;
  95
  96         if (!metadata_path) {
  97                 ret = -1;
  98                 goto result;
  99         }
 100
 101         parser_output_fd = mkstemp(parser_output_path);
 102         metadata_fd = open(metadata_path, O_RDONLY);
 103
 104         unlink(parser_output_path);
 105
 106         if (parser_output_fd == -1 || metadata_fd == -1) {
 107                 diag("Failed create temporary files for metadata parsing.");
 108                 ret = -1;
 109                 goto result;
 110         }
 111
 112         pid_t pid = fork();
 113         if (pid) {
 114                 int status = 0;
 115                 waitpid(pid, &status, 0);
 116                 ret = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
 117         } else {
 118                 /* ctf-parser-test expects a metadata string on stdin. */
 119                 ret = dup2(metadata_fd, STDIN_FILENO);
 120                 if (ret < 0) {
 121                         perror("# dup2 metadata_fd to STDIN");
 122                         goto result;
 123                 }
 124
 125                 ret = dup2(parser_output_fd, STDOUT_FILENO);
 126                 if (ret < 0) {
 127                         perror("# dup2 parser_output_fd to STDOUT");
 128                         goto result;
 129                 }
 130
 131                 ret = dup2(parser_output_fd, STDERR_FILENO);
 132                 if (ret < 0) {
 133                         perror("# dup2 parser_output_fd to STDERR");
 134                         goto result;
 135                 }
 136
 137                 execl(parser_path, "ctf-parser-test", NULL);
 138                 perror("# Could not launch the ctf metadata parser process");
 139                 exit(-1);
 140         }
 141 result:
 142         ok(ret == 0, "Metadata string is valid");
 143
 144         if (ret && metadata_fd >= 0 && parser_output_fd >= 0) {
 145                 char *line;
 146                 size_t len = METADATA_LINE_SIZE;
 147                 FILE *metadata_fp = NULL, *parser_output_fp = NULL;
 148
 149                 metadata_fp = fdopen(metadata_fd, "r");
 150                 if (!metadata_fp) {
 151                         perror("fdopen on metadata_fd");
 152                         goto close_fp;
 153                 }
 154                 metadata_fd = -1;
 155
 156                 parser_output_fp = fdopen(parser_output_fd, "r");
 157                 if (!parser_output_fp) {
 158                         perror("fdopen on parser_output_fd");
 159                         goto close_fp;
 160                 }
 161                 parser_output_fd = -1;
 162
 163                 line = malloc(len);
 164                 if (!line) {
 165                         diag("malloc failure");
 166                 }
 167
 168                 rewind(metadata_fp);
 169
 170                 /* Output the metadata and parser output as diagnostic */
 171                 while (bt_getline(&line, &len, metadata_fp) > 0) {
 172                         fprintf(stderr, "# %s", line);
 173                 }
 174
 175                 rewind(parser_output_fp);
 176                 while (bt_getline(&line, &len, parser_output_fp) > 0) {
 177                         fprintf(stderr, "# %s", line);
 178                 }
 179
 180                 free(line);
 181 close_fp:
 182                 if (metadata_fp) {
 183                         if (fclose(metadata_fp)) {
 184                                 diag("fclose failure");
 185                         }
 186                 }
 187                 if (parser_output_fp) {
 188                         if (fclose(parser_output_fp)) {
 189                                 diag("fclose failure");
 190                         }
 191                 }
 192         }
 193
 194         if (parser_output_fd >= 0) {
 195                 if (close(parser_output_fd)) {
 196                         diag("close error");
 197                 }
 198         }
 199         if (metadata_fd >= 0) {
 200                 if (close(metadata_fd)) {
 201                         diag("close error");
 202                 }
 203         }
 204 }
 205
 206 static
 207 void validate_trace(char *parser_path, char *trace_path)
 208 {
 209         int ret = 0;
 210         char babeltrace_output_path[] = "/tmp/babeltrace_output_XXXXXX";
 211         int babeltrace_output_fd = -1;
 212
 213         if (!trace_path) {
 214                 ret = -1;
 215                 goto result;
 216         }
 217
 218         babeltrace_output_fd = mkstemp(babeltrace_output_path);
 219         unlink(babeltrace_output_path);
 220
 221         if (babeltrace_output_fd == -1) {
 222                 diag("Failed to create a temporary file for trace parsing.");
 223                 ret = -1;
 224                 goto result;
 225         }
 226
 227         pid_t pid = fork();
 228         if (pid) {
 229                 int status = 0;
 230                 waitpid(pid, &status, 0);
 231                 ret = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
 232         } else {
 233                 ret = dup2(babeltrace_output_fd, STDOUT_FILENO);
 234                 if (ret < 0) {
 235                         perror("# dup2 babeltrace_output_fd to STDOUT");
 236                         goto result;
 237                 }
 238
 239                 ret = dup2(babeltrace_output_fd, STDERR_FILENO);
 240                 if (ret < 0) {
 241                         perror("# dup2 babeltrace_output_fd to STDERR");
 242                         goto result;
 243                 }
 244
 245                 execl(parser_path, "babeltrace", trace_path, NULL);
 246                 perror("# Could not launch the babeltrace process");
 247                 exit(-1);
 248         }
 249 result:
 250         ok(ret == 0, "Babeltrace could read the resulting trace");
 251
 252         if (ret && babeltrace_output_fd >= 0) {
 253                 char *line;
 254                 size_t len = METADATA_LINE_SIZE;
 255                 FILE *babeltrace_output_fp = NULL;
 256
 257                 babeltrace_output_fp = fdopen(babeltrace_output_fd, "r");
 258                 if (!babeltrace_output_fp) {
 259                         perror("fdopen on babeltrace_output_fd");
 260                         goto close_fp;
 261                 }
 262                 babeltrace_output_fd = -1;
 263
 264                 line = malloc(len);
 265                 if (!line) {
 266                         diag("malloc error");
 267                 }
 268                 rewind(babeltrace_output_fp);
 269                 while (bt_getline(&line, &len, babeltrace_output_fp) > 0) {
 270                         diag("%s", line);
 271                 }
 272
 273                 free(line);
 274 close_fp:
 275                 if (babeltrace_output_fp) {
 276                         if (fclose(babeltrace_output_fp)) {
 277                                 diag("fclose error");
 278                         }
 279                 }
 280         }
 281
 282         if (babeltrace_output_fd >= 0) {
 283                 if (close(babeltrace_output_fd)) {
 284                         diag("close error");
 285                 }
 286         }
 287 }
 288
 289 static
 290 void append_simple_event(struct bt_ctf_stream_class *stream_class,
 291                 struct bt_ctf_stream *stream, struct bt_ctf_clock *clock)
 292 {
 293         /* Create and add a simple event class */
 294         struct bt_ctf_event_class *simple_event_class =
 295                 bt_ctf_event_class_create("Simple Event");
 296         struct bt_ctf_field_type *uint_12_type =
 297                 bt_ctf_field_type_integer_create(12);
 298         struct bt_ctf_field_type *int_64_type =
 299                 bt_ctf_field_type_integer_create(64);
 300         struct bt_ctf_field_type *float_type =
 301                 bt_ctf_field_type_floating_point_create();
 302         struct bt_ctf_field_type *enum_type;
 303         struct bt_ctf_field_type *enum_type_unsigned =
 304                 bt_ctf_field_type_enumeration_create(uint_12_type);
 305         struct bt_ctf_field_type *event_context_type =
 306                 bt_ctf_field_type_structure_create();
 307         struct bt_ctf_field_type *event_payload_type = NULL;
 308         struct bt_ctf_field_type *returned_type;
 309         struct bt_ctf_event *simple_event;
 310         struct bt_ctf_field *integer_field;
 311         struct bt_ctf_field *float_field;
 312         struct bt_ctf_field *enum_field;
 313         struct bt_ctf_field *enum_field_unsigned;
 314         struct bt_ctf_field *enum_container_field;
 315         const char *mapping_name_test = "truie";
 316         const double double_test_value = 3.1415;
 317         struct bt_ctf_field *enum_container_field_unsigned;
 318         const char *mapping_name_negative_test = "negative_value";
 319         const char *ret_char;
 320         double ret_double;
 321         int64_t ret_range_start_int64_t, ret_range_end_int64_t;
 322         uint64_t ret_range_start_uint64_t, ret_range_end_uint64_t;
 323         struct bt_ctf_event_class *ret_event_class;
 324         struct bt_ctf_field *packet_context;
 325         struct bt_ctf_field *packet_context_field;
 326         struct bt_ctf_field *stream_event_context;
 327         struct bt_ctf_field *stream_event_context_field;
 328         struct bt_ctf_field *event_context;
 329         struct bt_ctf_field *event_context_field;
 330         struct bt_ctf_field_type *ep_integer_field_type = NULL;
 331         struct bt_ctf_field_type *ep_enum_field_type = NULL;
 332         struct bt_ctf_field_type *ep_enum_field_unsigned_type = NULL;
 333         int ret;
 334
 335         ok(uint_12_type, "Create an unsigned integer type");
 336
 337         ok(!bt_ctf_field_type_integer_set_signed(int_64_type, 1),
 338                 "Set signed 64 bit integer signedness to true");
 339         ok(int_64_type, "Create a signed integer type");
 340         enum_type = bt_ctf_field_type_enumeration_create(int_64_type);
 341
 342         returned_type = bt_ctf_field_type_enumeration_get_container_type(enum_type);
 343         ok(returned_type == int_64_type, "bt_ctf_field_type_enumeration_get_container_type returns the right type");
 344         ok(!bt_ctf_field_type_enumeration_get_container_type(NULL), "bt_ctf_field_type_enumeration_get_container_type handles NULL correctly");
 345         ok(!bt_ctf_field_type_enumeration_create(enum_type),
 346                 "bt_ctf_field_enumeration_type_create rejects non-integer container field types");
 347         bt_put(returned_type);
 348
 349         bt_ctf_field_type_set_alignment(float_type, 32);
 350         ok(bt_ctf_field_type_get_alignment(NULL) < 0,
 351                 "bt_ctf_field_type_get_alignment handles NULL correctly");
 352         ok(bt_ctf_field_type_get_alignment(float_type) == 32,
 353                 "bt_ctf_field_type_get_alignment returns a correct value");
 354
 355         ok(bt_ctf_field_type_floating_point_set_exponent_digits(float_type, 11) == 0,
 356                 "Set a floating point type's exponent digit count");
 357         ok(bt_ctf_field_type_floating_point_set_mantissa_digits(float_type, 53) == 0,
 358                 "Set a floating point type's mantissa digit count");
 359
 360         ok(bt_ctf_field_type_floating_point_get_exponent_digits(NULL) < 0,
 361                 "bt_ctf_field_type_floating_point_get_exponent_digits handles NULL properly");
 362         ok(bt_ctf_field_type_floating_point_get_mantissa_digits(NULL) < 0,
 363                 "bt_ctf_field_type_floating_point_get_mantissa_digits handles NULL properly");
 364         ok(bt_ctf_field_type_floating_point_get_exponent_digits(float_type) == 11,
 365                 "bt_ctf_field_type_floating_point_get_exponent_digits returns the correct value");
 366         ok(bt_ctf_field_type_floating_point_get_mantissa_digits(float_type) == 53,
 367                 "bt_ctf_field_type_floating_point_get_mantissa_digits returns the correct value");
 368
 369         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 370                 mapping_name_negative_test, -12345, 0) == 0,
 371                 "bt_ctf_field_type_enumeration_add_mapping accepts negative enumeration mappings");
 372         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 373                 "escaping; \"test\"", 1, 1) == 0,
 374                 "bt_ctf_field_type_enumeration_add_mapping accepts enumeration mapping strings containing quotes");
 375         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 376                 "\tanother \'escaping\'\n test\"", 2, 4) == 0,
 377                 "bt_ctf_field_type_enumeration_add_mapping accepts enumeration mapping strings containing special characters");
 378         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 379                 "event clock int float", 5, 22) == 0,
 380                 "Accept enumeration mapping strings containing reserved keywords");
 381         bt_ctf_field_type_enumeration_add_mapping(enum_type, mapping_name_test,
 382                 42, 42);
 383         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type, mapping_name_test,
 384                 43, 51), "bt_ctf_field_type_enumeration_add_mapping rejects duplicate mapping names");
 385         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type, "something",
 386                 -500, -400), "bt_ctf_field_type_enumeration_add_mapping rejects overlapping enum entries");
 387         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type, mapping_name_test,
 388                 -54, -55), "bt_ctf_field_type_enumeration_add_mapping rejects mapping where end < start");
 389         bt_ctf_field_type_enumeration_add_mapping(enum_type, "another entry", -42000, -13000);
 390
 391         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_value(NULL, -42) < 0,
 392                 "bt_ctf_field_type_enumeration_get_mapping_index_by_value handles a NULL field type correctly");
 393         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_value(enum_type, 1000000) < 0,
 394                 "bt_ctf_field_type_enumeration_get_mapping_index_by_value handles invalid values correctly");
 395         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_value(enum_type, -55) == 1,
 396                 "bt_ctf_field_type_enumeration_get_mapping_index_by_value returns the correct index");
 397
 398         ok(bt_ctf_event_class_add_field(simple_event_class, enum_type,
 399                 "enum_field") == 0, "Add signed enumeration field to event");
 400
 401         ok(bt_ctf_field_type_enumeration_get_mapping(NULL, 0, &ret_char,
 402                 &ret_range_start_int64_t, &ret_range_end_int64_t) < 0,
 403                 "bt_ctf_field_type_enumeration_get_mapping handles a NULL enumeration correctly");
 404         ok(bt_ctf_field_type_enumeration_get_mapping(enum_type, 0, NULL,
 405                 &ret_range_start_int64_t, &ret_range_end_int64_t) < 0,
 406                 "bt_ctf_field_type_enumeration_get_mapping handles a NULL string correctly");
 407         ok(bt_ctf_field_type_enumeration_get_mapping(enum_type, 0, &ret_char,
 408                 NULL, &ret_range_end_int64_t) < 0,
 409                 "bt_ctf_field_type_enumeration_get_mapping handles a NULL start correctly");
 410         ok(bt_ctf_field_type_enumeration_get_mapping(enum_type, 0, &ret_char,
 411                 &ret_range_start_int64_t, NULL) < 0,
 412                 "bt_ctf_field_type_enumeration_get_mapping handles a NULL end correctly");
 413         ok(bt_ctf_field_type_enumeration_get_mapping(enum_type, 5, &ret_char,
 414                 &ret_range_start_int64_t, &ret_range_end_int64_t) == 0,
 415                 "bt_ctf_field_type_enumeration_get_mapping returns a value");
 416         ok(!strcmp(ret_char, mapping_name_test),
 417                 "bt_ctf_field_type_enumeration_get_mapping returns a correct mapping name");
 418         ok(ret_range_start_int64_t == 42,
 419                 "bt_ctf_field_type_enumeration_get_mapping returns a correct mapping start");
 420         ok(ret_range_end_int64_t == 42,
 421                 "bt_ctf_field_type_enumeration_get_mapping returns a correct mapping end");
 422
 423         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned,
 424                 "escaping; \"test\"", 0, 0) == 0,
 425                 "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts enumeration mapping strings containing quotes");
 426         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned,
 427                 "\tanother \'escaping\'\n test\"", 1, 4) == 0,
 428                 "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts enumeration mapping strings containing special characters");
 429         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned,
 430                 "event clock int float", 5, 22) == 0,
 431                 "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts enumeration mapping strings containing reserved keywords");
 432         bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, mapping_name_test,
 433                 42, 42);
 434         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, mapping_name_test,
 435                 43, 51), "bt_ctf_field_type_enumeration_add_mapping_unsigned rejects duplicate mapping names");
 436         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, "something",
 437                 7, 8), "bt_ctf_field_type_enumeration_add_mapping_unsigned rejects overlapping enum entries");
 438         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, mapping_name_test,
 439                 55, 54), "bt_ctf_field_type_enumeration_add_mapping_unsigned rejects mapping where end < start");
 440         ok(bt_ctf_event_class_add_field(simple_event_class, enum_type_unsigned,
 441                 "enum_field_unsigned") == 0, "Add unsigned enumeration field to event");
 442
 443         ok(bt_ctf_field_type_enumeration_get_mapping_count(NULL) < 0,
 444                 "bt_ctf_field_type_enumeration_get_mapping_count handles NULL correctly");
 445         ok(bt_ctf_field_type_enumeration_get_mapping_count(enum_type_unsigned) == 4,
 446                 "bt_ctf_field_type_enumeration_get_mapping_count returns the correct value");
 447
 448         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(NULL, 0, &ret_char,
 449                 &ret_range_start_uint64_t, &ret_range_end_uint64_t) < 0,
 450                 "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL enumeration correctly");
 451         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 0, NULL,
 452                 &ret_range_start_uint64_t, &ret_range_end_uint64_t) < 0,
 453                 "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL string correctly");
 454         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 0, &ret_char,
 455                 NULL, &ret_range_end_uint64_t) < 0,
 456                 "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL start correctly");
 457         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 0, &ret_char,
 458                 &ret_range_start_uint64_t, NULL) < 0,
 459                 "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL end correctly");
 460         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 3, &ret_char,
 461                 &ret_range_start_uint64_t, &ret_range_end_uint64_t) == 0,
 462                 "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a value");
 463         ok(!strcmp(ret_char, mapping_name_test),
 464                 "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a correct mapping name");
 465         ok(ret_range_start_uint64_t == 42,
 466                 "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a correct mapping start");
 467         ok(ret_range_end_uint64_t == 42,
 468                 "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a correct mapping end");
 469
 470         bt_ctf_event_class_add_field(simple_event_class, uint_12_type,
 471                 "integer_field");
 472         bt_ctf_event_class_add_field(simple_event_class, float_type,
 473                 "float_field");
 474
 475         assert(!bt_ctf_event_class_set_id(simple_event_class, 13));
 476
 477         /* Set an event context type which will contain a single integer. */
 478         ok(!bt_ctf_field_type_structure_add_field(event_context_type, uint_12_type,
 479                 "event_specific_context"),
 480                 "Add event specific context field");
 481         ok(bt_ctf_event_class_get_context_type(NULL) == NULL,
 482                 "bt_ctf_event_class_get_context_type handles NULL correctly");
 483         ok(bt_ctf_event_class_get_context_type(simple_event_class) == NULL,
 484                 "bt_ctf_event_class_get_context_type returns NULL when no event context type is set");
 485
 486         ok(bt_ctf_event_class_set_context_type(NULL, event_context_type) < 0,
 487                 "bt_ctf_event_class_set_context_type handles a NULL event class correctly");
 488         ok(!bt_ctf_event_class_set_context_type(simple_event_class, event_context_type),
 489                 "Set an event class' context type successfully");
 490         returned_type = bt_ctf_event_class_get_context_type(simple_event_class);
 491         ok(returned_type == event_context_type,
 492                 "bt_ctf_event_class_get_context_type returns the appropriate type");
 493         bt_put(returned_type);
 494
 495         ok(!bt_ctf_stream_class_add_event_class(stream_class, simple_event_class),
 496                 "Adding simple event class to stream class");
 497
 498         /*
 499          * bt_ctf_stream_class_add_event_class() copies the field types
 500          * of simple_event_class, so we retrieve the new ones to create
 501          * the appropriate fields.
 502          */
 503         BT_PUT(event_context_type);
 504         BT_PUT(event_payload_type);
 505         event_payload_type = bt_ctf_event_class_get_payload_type(
 506                 simple_event_class);
 507         assert(event_payload_type);
 508         event_context_type = bt_ctf_event_class_get_context_type(
 509                 simple_event_class);
 510         assert(event_context_type);
 511         ep_integer_field_type =
 512                 bt_ctf_field_type_structure_get_field_type_by_name(
 513                         event_payload_type, "integer_field");
 514         assert(ep_integer_field_type);
 515         ep_enum_field_type =
 516                 bt_ctf_field_type_structure_get_field_type_by_name(
 517                         event_payload_type, "enum_field");
 518         assert(ep_enum_field_type);
 519         ep_enum_field_unsigned_type =
 520                 bt_ctf_field_type_structure_get_field_type_by_name(
 521                         event_payload_type, "enum_field_unsigned");
 522         assert(ep_enum_field_unsigned_type);
 523
 524         ok(bt_ctf_stream_class_get_event_class_count(NULL) < 0,
 525                 "bt_ctf_stream_class_get_event_class_count handles NULL correctly");
 526         ok(bt_ctf_stream_class_get_event_class_count(stream_class) == 1,
 527                 "bt_ctf_stream_class_get_event_class_count returns a correct number of event classes");
 528         ok(bt_ctf_stream_class_get_event_class(NULL, 0) == NULL,
 529                 "bt_ctf_stream_class_get_event_class handles NULL correctly");
 530         ok(bt_ctf_stream_class_get_event_class(stream_class, 8724) == NULL,
 531                 "bt_ctf_stream_class_get_event_class handles invalid indexes correctly");
 532         ret_event_class = bt_ctf_stream_class_get_event_class(stream_class, 0);
 533         ok(ret_event_class == simple_event_class,
 534                 "bt_ctf_stream_class_get_event_class returns the correct event class");
 535         bt_put(ret_event_class);
 536         ok(!bt_ctf_stream_class_get_event_class_by_id(NULL, 0),
 537                 "bt_ctf_stream_class_get_event_class_by_id handles NULL correctly");
 538         ok(!bt_ctf_stream_class_get_event_class_by_id(stream_class, 2),
 539                 "bt_ctf_stream_class_get_event_class_by_id returns NULL when the requested ID doesn't exist");
 540         ret_event_class =
 541                 bt_ctf_stream_class_get_event_class_by_id(stream_class, 13);
 542         ok(ret_event_class == simple_event_class,
 543                 "bt_ctf_stream_class_get_event_class_by_id returns a correct event class");
 544         bt_put(ret_event_class);
 545
 546         ok(bt_ctf_stream_class_get_event_class_by_name(NULL, "some event name") == NULL,
 547                 "bt_ctf_stream_class_get_event_class_by_name handles a NULL stream class correctly");
 548         ok(bt_ctf_stream_class_get_event_class_by_name(stream_class, NULL) == NULL,
 549                 "bt_ctf_stream_class_get_event_class_by_name handles a NULL event class name correctly");
 550         ok(bt_ctf_stream_class_get_event_class_by_name(stream_class, "some event name") == NULL,
 551                 "bt_ctf_stream_class_get_event_class_by_name handles non-existing event class names correctly");
 552         ret_event_class = bt_ctf_stream_class_get_event_class_by_name(stream_class, "Simple Event");
 553         ok(ret_event_class == simple_event_class,
 554                 "bt_ctf_stream_class_get_event_class_by_name returns a correct event class");
 555         bt_put(ret_event_class);
 556
 557         simple_event = bt_ctf_event_create(simple_event_class);
 558         ok(simple_event,
 559                 "Instantiate an event containing a single integer field");
 560
 561         integer_field = bt_ctf_field_create(ep_integer_field_type);
 562         bt_ctf_field_unsigned_integer_set_value(integer_field, 42);
 563         ok(bt_ctf_event_set_payload(simple_event, "integer_field",
 564                 integer_field) == 0, "Use bt_ctf_event_set_payload to set a manually allocated field");
 565
 566         float_field = bt_ctf_event_get_payload(simple_event, "float_field");
 567         ok(bt_ctf_field_floating_point_get_value(float_field, &ret_double),
 568                 "bt_ctf_field_floating_point_get_value fails on an unset float field");
 569         bt_ctf_field_floating_point_set_value(float_field, double_test_value);
 570         ok(bt_ctf_field_floating_point_get_value(NULL, &ret_double),
 571                 "bt_ctf_field_floating_point_get_value properly handles a NULL field");
 572         ok(bt_ctf_field_floating_point_get_value(float_field, NULL),
 573                 "bt_ctf_field_floating_point_get_value properly handles a NULL return value pointer");
 574         ok(!bt_ctf_field_floating_point_get_value(float_field, &ret_double),
 575                 "bt_ctf_field_floating_point_get_value returns a double value");
 576         ok(fabs(ret_double - double_test_value) <= DBL_EPSILON,
 577                 "bt_ctf_field_floating_point_get_value returns a correct value");
 578
 579         enum_field = bt_ctf_field_create(ep_enum_field_type);
 580         assert(enum_field);
 581         ret_char = bt_ctf_field_enumeration_get_mapping_name(NULL);
 582         ok(!ret_char, "bt_ctf_field_enumeration_get_mapping_name handles NULL correctly");
 583         ret_char = bt_ctf_field_enumeration_get_mapping_name(enum_field);
 584         ok(!ret_char, "bt_ctf_field_enumeration_get_mapping_name returns NULL if the enumeration's container field is unset");
 585         enum_container_field = bt_ctf_field_enumeration_get_container(
 586                 enum_field);
 587         ok(bt_ctf_field_signed_integer_set_value(
 588                 enum_container_field, -42) == 0,
 589                 "Set signed enumeration container value");
 590         ret_char = bt_ctf_field_enumeration_get_mapping_name(enum_field);
 591         ok(!strcmp(ret_char, mapping_name_negative_test),
 592                 "bt_ctf_field_enumeration_get_mapping_name returns the correct mapping name with an signed container");
 593         ret = bt_ctf_event_set_payload(simple_event, "enum_field", enum_field);
 594         assert(!ret);
 595
 596         enum_field_unsigned = bt_ctf_field_create(ep_enum_field_unsigned_type);
 597         assert(enum_field_unsigned);
 598         enum_container_field_unsigned = bt_ctf_field_enumeration_get_container(
 599                 enum_field_unsigned);
 600         ok(bt_ctf_field_unsigned_integer_set_value(
 601                 enum_container_field_unsigned, 42) == 0,
 602                 "Set unsigned enumeration container value");
 603         ret = bt_ctf_event_set_payload(simple_event, "enum_field_unsigned",
 604                 enum_field_unsigned);
 605         assert(!ret);
 606         ret_char = bt_ctf_field_enumeration_get_mapping_name(enum_field_unsigned);
 607         ok(ret_char && !strcmp(ret_char, mapping_name_test),
 608                 "bt_ctf_field_enumeration_get_mapping_name returns the correct mapping name with an unsigned container");
 609
 610         ok(bt_ctf_clock_set_time(clock, current_time) == 0, "Set clock time");
 611
 612         /* Populate stream event context */
 613         stream_event_context =
 614                 bt_ctf_event_get_stream_event_context(simple_event);
 615         assert(stream_event_context);
 616         stream_event_context_field = bt_ctf_field_structure_get_field(
 617                 stream_event_context, "common_event_context");
 618         bt_ctf_field_unsigned_integer_set_value(stream_event_context_field, 42);
 619
 620         /* Populate the event's context */
 621         ok(bt_ctf_event_get_event_context(NULL) == NULL,
 622                 "bt_ctf_event_get_event_context handles NULL correctly");
 623         event_context = bt_ctf_event_get_event_context(simple_event);
 624         ok(event_context,
 625                 "bt_ctf_event_get_event_context returns a field");
 626         returned_type = bt_ctf_field_get_type(event_context);
 627         ok(returned_type == event_context_type,
 628                 "bt_ctf_event_get_event_context returns a field of the appropriate type");
 629         event_context_field = bt_ctf_field_structure_get_field(event_context,
 630                 "event_specific_context");
 631         ok(!bt_ctf_field_unsigned_integer_set_value(event_context_field, 1234),
 632                 "Successfully set an event context's value");
 633         ok(bt_ctf_event_set_event_context(NULL, event_context) < 0,
 634                 "bt_ctf_event_set_event_context handles a NULL event correctly");
 635         ok(bt_ctf_event_set_event_context(simple_event, NULL) < 0,
 636                 "bt_ctf_event_set_event_context handles a NULL event context correctly");
 637         ok(bt_ctf_event_set_event_context(simple_event, event_context_field) < 0,
 638                 "bt_ctf_event_set_event_context rejects a context of the wrong type");
 639         ok(!bt_ctf_event_set_event_context(simple_event, event_context),
 640                 "Set an event context successfully");
 641
 642         ok(bt_ctf_stream_append_event(stream, simple_event) == 0,
 643                 "Append simple event to trace stream");
 644
 645         ok(bt_ctf_stream_get_packet_context(NULL) == NULL,
 646                 "bt_ctf_stream_get_packet_context handles NULL correctly");
 647         packet_context = bt_ctf_stream_get_packet_context(stream);
 648         ok(packet_context,
 649                 "bt_ctf_stream_get_packet_context returns a packet context");
 650
 651         packet_context_field = bt_ctf_field_structure_get_field(packet_context,
 652                 "packet_size");
 653         ok(packet_context_field,
 654                 "Packet context contains the default packet_size field.");
 655         bt_put(packet_context_field);
 656         packet_context_field = bt_ctf_field_structure_get_field(packet_context,
 657                 "custom_packet_context_field");
 658         ok(bt_ctf_field_unsigned_integer_set_value(packet_context_field, 8) == 0,
 659                 "Custom packet context field value successfully set.");
 660
 661         ok(bt_ctf_stream_set_packet_context(NULL, packet_context_field) < 0,
 662                 "bt_ctf_stream_set_packet_context handles a NULL stream correctly");
 663         ok(bt_ctf_stream_set_packet_context(stream, NULL) < 0,
 664                 "bt_ctf_stream_set_packet_context handles a NULL packet context correctly");
 665         ok(bt_ctf_stream_set_packet_context(stream, packet_context) == 0,
 666                 "Successfully set a stream's packet context");
 667
 668         ok(bt_ctf_stream_flush(stream) == 0,
 669                 "Flush trace stream with one event");
 670
 671         bt_put(simple_event_class);
 672         bt_put(simple_event);
 673         bt_put(uint_12_type);
 674         bt_put(int_64_type);
 675         bt_put(float_type);
 676         bt_put(enum_type);
 677         bt_put(enum_type_unsigned);
 678         bt_put(returned_type);
 679         bt_put(event_context_type);
 680         bt_put(integer_field);
 681         bt_put(float_field);
 682         bt_put(enum_field);
 683         bt_put(enum_field_unsigned);
 684         bt_put(enum_container_field);
 685         bt_put(enum_container_field_unsigned);
 686         bt_put(packet_context);
 687         bt_put(packet_context_field);
 688         bt_put(stream_event_context);
 689         bt_put(stream_event_context_field);
 690         bt_put(event_context);
 691         bt_put(event_context_field);
 692         bt_put(event_payload_type);
 693         bt_put(ep_integer_field_type);
 694         bt_put(ep_enum_field_type);
 695         bt_put(ep_enum_field_unsigned_type);
 696 }
 697
 698 static
 699 void append_complex_event(struct bt_ctf_stream_class *stream_class,
 700                 struct bt_ctf_stream *stream, struct bt_ctf_clock *clock)
 701 {
 702         struct event_class_attrs_counts {
 703                 int id;
 704                 int name;
 705                 int loglevel;
 706                 int modelemfuri;
 707                 int unknown;
 708         } attrs_count;
 709
 710         int i;
 711         int ret;
 712         int64_t int64_value;
 713         struct event_class_attrs_counts ;
 714         const char *complex_test_event_string = "Complex Test Event";
 715         const char *test_string_1 = "Test ";
 716         const char *test_string_2 = "string ";
 717         const char *test_string_3 = "abcdefghi";
 718         const char *test_string_4 = "abcd\0efg\0hi";
 719         const char *test_string_cat = "Test string abcdeabcd";
 720         struct bt_ctf_field_type *uint_35_type =
 721                 bt_ctf_field_type_integer_create(35);
 722         struct bt_ctf_field_type *int_16_type =
 723                 bt_ctf_field_type_integer_create(16);
 724         struct bt_ctf_field_type *uint_3_type =
 725                 bt_ctf_field_type_integer_create(3);
 726         struct bt_ctf_field_type *enum_variant_type =
 727                 bt_ctf_field_type_enumeration_create(uint_3_type);
 728         struct bt_ctf_field_type *variant_type =
 729                 bt_ctf_field_type_variant_create(enum_variant_type,
 730                         "variant_selector");
 731         struct bt_ctf_field_type *string_type =
 732                 bt_ctf_field_type_string_create();
 733         struct bt_ctf_field_type *sequence_type;
 734         struct bt_ctf_field_type *array_type;
 735         struct bt_ctf_field_type *inner_structure_type =
 736                 bt_ctf_field_type_structure_create();
 737         struct bt_ctf_field_type *complex_structure_type =
 738                 bt_ctf_field_type_structure_create();
 739         struct bt_ctf_field_type *ret_field_type;
 740         struct bt_ctf_event_class *event_class;
 741         struct bt_ctf_event *event;
 742         struct bt_ctf_field *uint_35_field, *int_16_field, *a_string_field,
 743                 *inner_structure_field, *complex_structure_field,
 744                 *a_sequence_field, *enum_variant_field, *enum_container_field,
 745                 *variant_field, *an_array_field, *stream_event_ctx_field,
 746                 *stream_event_ctx_int_field, *ret_field;
 747         uint64_t ret_unsigned_int;
 748         int64_t ret_signed_int;
 749         const char *ret_string;
 750         struct bt_ctf_stream_class *ret_stream_class;
 751         struct bt_ctf_event_class *ret_event_class;
 752         struct bt_ctf_field *packet_context, *packet_context_field;
 753         struct bt_value *obj;
 754
 755         ok(bt_ctf_field_type_set_alignment(int_16_type, 0),
 756                 "bt_ctf_field_type_set_alignment handles 0-alignment correctly");
 757         ok(bt_ctf_field_type_set_alignment(int_16_type, 3),
 758                 "bt_ctf_field_type_set_alignment handles wrong alignment correctly (3)");
 759         ok(bt_ctf_field_type_set_alignment(int_16_type, 24),
 760                 "bt_ctf_field_type_set_alignment handles wrong alignment correctly (24)");
 761         ok(!bt_ctf_field_type_set_alignment(int_16_type, 4),
 762                 "bt_ctf_field_type_set_alignment handles correct alignment correctly (4)");
 763         ok(!bt_ctf_field_type_set_alignment(int_16_type, 32),
 764                 "Set alignment of signed 16 bit integer to 32");
 765         ok(!bt_ctf_field_type_integer_set_signed(int_16_type, 1),
 766                 "Set integer signedness to true");
 767         ok(!bt_ctf_field_type_integer_set_base(uint_35_type,
 768                 BT_CTF_INTEGER_BASE_HEXADECIMAL),
 769                 "Set signed 16 bit integer base to hexadecimal");
 770
 771         array_type = bt_ctf_field_type_array_create(int_16_type, ARRAY_TEST_LENGTH);
 772         sequence_type = bt_ctf_field_type_sequence_create(int_16_type,
 773                 "seq_len");
 774
 775         ok(bt_ctf_field_type_array_get_element_type(NULL) == NULL,
 776                 "bt_ctf_field_type_array_get_element_type handles NULL correctly");
 777         ret_field_type = bt_ctf_field_type_array_get_element_type(
 778                 array_type);
 779         ok(ret_field_type == int_16_type,
 780                 "bt_ctf_field_type_array_get_element_type returns the correct type");
 781         bt_put(ret_field_type);
 782
 783         ok(bt_ctf_field_type_array_get_length(NULL) < 0,
 784                 "bt_ctf_field_type_array_get_length handles NULL correctly");
 785         ok(bt_ctf_field_type_array_get_length(array_type) == ARRAY_TEST_LENGTH,
 786                 "bt_ctf_field_type_array_get_length returns the correct length");
 787
 788         ok(bt_ctf_field_type_structure_add_field(inner_structure_type,
 789                 inner_structure_type, "yes"), "Cannot add self to structure");
 790         ok(!bt_ctf_field_type_structure_add_field(inner_structure_type,
 791                 uint_35_type, "seq_len"), "Add seq_len field to inner structure");
 792         ok(!bt_ctf_field_type_structure_add_field(inner_structure_type,
 793                 sequence_type, "a_sequence"), "Add a_sequence field to inner structure");
 794         ok(!bt_ctf_field_type_structure_add_field(inner_structure_type,
 795                 array_type, "an_array"), "Add an_array field to inner structure");
 796
 797         bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
 798                 "UINT3_TYPE", 0, 0);
 799         bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
 800                 "INT16_TYPE", 1, 1);
 801         bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
 802                 "UINT35_TYPE", 2, 7);
 803
 804         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_name(NULL,
 805                 "INT16_TYPE") < 0,
 806                 "bt_ctf_field_type_enumeration_get_mapping_index_by_name handles a NULL field type correctly");
 807         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_name(
 808                 enum_variant_type, NULL) < 0,
 809                 "bt_ctf_field_type_enumeration_get_mapping_index_by_name handles a NULL name correctly");
 810         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_name(
 811                 enum_variant_type, "INT16_TYPE") == 1,
 812                 "bt_ctf_field_type_enumeration_get_mapping_index_by_name returns the correct index");
 813
 814         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value(NULL, 1) < 0,
 815                 "bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value handles a NULL field type correctly");
 816         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value(enum_variant_type, -42) < 0,
 817                 "bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value handles invalid values correctly");
 818         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value(enum_variant_type, 5) == 2,
 819                 "bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value returns the correct index");
 820
 821         ok(bt_ctf_field_type_variant_add_field(variant_type, uint_3_type,
 822                 "An unknown entry"), "Reject a variant field based on an unknown tag value");
 823         ok(bt_ctf_field_type_variant_add_field(variant_type, uint_3_type,
 824                 "UINT3_TYPE") == 0, "Add a field to a variant");
 825         ok(!bt_ctf_field_type_variant_add_field(variant_type, int_16_type,
 826                 "INT16_TYPE"), "Add INT16_TYPE field to variant");
 827         ok(!bt_ctf_field_type_variant_add_field(variant_type, uint_35_type,
 828                 "UINT35_TYPE"), "Add UINT35_TYPE field to variant");
 829
 830         ok(bt_ctf_field_type_variant_get_tag_type(NULL) == NULL,
 831                 "bt_ctf_field_type_variant_get_tag_type handles NULL correctly");
 832         ret_field_type = bt_ctf_field_type_variant_get_tag_type(variant_type);
 833         ok(ret_field_type == enum_variant_type,
 834                 "bt_ctf_field_type_variant_get_tag_type returns a correct tag type");
 835         bt_put(ret_field_type);
 836
 837         ok(bt_ctf_field_type_variant_get_tag_name(NULL) == NULL,
 838                 "bt_ctf_field_type_variant_get_tag_name handles NULL correctly");
 839         ret_string = bt_ctf_field_type_variant_get_tag_name(variant_type);
 840         ok(ret_string ? !strcmp(ret_string, "variant_selector") : 0,
 841                 "bt_ctf_field_type_variant_get_tag_name returns the correct variant tag name");
 842         ok(bt_ctf_field_type_variant_get_field_type_by_name(NULL,
 843                 "INT16_TYPE") == NULL,
 844                 "bt_ctf_field_type_variant_get_field_type_by_name handles a NULL variant_type correctly");
 845         ok(bt_ctf_field_type_variant_get_field_type_by_name(variant_type,
 846                 NULL) == NULL,
 847                 "bt_ctf_field_type_variant_get_field_type_by_name handles a NULL field name correctly");
 848         ret_field_type = bt_ctf_field_type_variant_get_field_type_by_name(
 849                 variant_type, "INT16_TYPE");
 850         ok(ret_field_type == int_16_type,
 851                 "bt_ctf_field_type_variant_get_field_type_by_name returns a correct field type");
 852         bt_put(ret_field_type);
 853
 854         ok(bt_ctf_field_type_variant_get_field_count(NULL) < 0,
 855                 "bt_ctf_field_type_variant_get_field_count handles NULL correctly");
 856         ok(bt_ctf_field_type_variant_get_field_count(variant_type) == 3,
 857                 "bt_ctf_field_type_variant_get_field_count returns the correct count");
 858
 859         ok(bt_ctf_field_type_variant_get_field(NULL, &ret_string, &ret_field_type, 0) < 0,
 860                 "bt_ctf_field_type_variant_get_field handles a NULL type correctly");
 861         ok(bt_ctf_field_type_variant_get_field(variant_type, NULL, &ret_field_type, 0) == 0,
 862                 "bt_ctf_field_type_variant_get_field handles a NULL field name correctly");
 863         bt_put(ret_field_type);
 864         ok(bt_ctf_field_type_variant_get_field(variant_type, &ret_string, NULL, 0) == 0,
 865                 "bt_ctf_field_type_variant_get_field handles a NULL field type correctly");
 866         ok(bt_ctf_field_type_variant_get_field(variant_type, &ret_string, &ret_field_type, 200) < 0,
 867                 "bt_ctf_field_type_variant_get_field handles an invalid index correctly");
 868         ok(bt_ctf_field_type_variant_get_field(variant_type, &ret_string, &ret_field_type, 1) == 0,
 869                 "bt_ctf_field_type_variant_get_field returns a field");
 870         ok(!strcmp("INT16_TYPE", ret_string),
 871                 "bt_ctf_field_type_variant_get_field returns a correct field name");
 872         ok(ret_field_type == int_16_type,
 873                 "bt_ctf_field_type_variant_get_field returns a correct field type");
 874         bt_put(ret_field_type);
 875
 876         ok(!bt_ctf_field_type_structure_add_field(complex_structure_type,
 877                 enum_variant_type, "variant_selector"),
 878                 "Add variant_selector field to complex structure");
 879         ok(!bt_ctf_field_type_structure_add_field(complex_structure_type,
 880                 string_type, "a_string"), "Add a_string field to complex structure");
 881         ok(!bt_ctf_field_type_structure_add_field(complex_structure_type,
 882                 variant_type, "variant_value"),
 883                 "Add variant_value field to complex structure");
 884         ok(!bt_ctf_field_type_structure_add_field(complex_structure_type,
 885                 inner_structure_type, "inner_structure"),
 886                 "Add inner_structure field to complex structure");
 887
 888         ok(bt_ctf_event_class_create("clock") == NULL,
 889                 "Reject creation of an event class with an illegal name");
 890         event_class = bt_ctf_event_class_create(complex_test_event_string);
 891         ok(event_class, "Create an event class");
 892         ok(bt_ctf_event_class_add_field(event_class, uint_35_type, ""),
 893                 "Reject addition of a field with an empty name to an event");
 894         ok(bt_ctf_event_class_add_field(event_class, NULL, "an_integer"),
 895                 "Reject addition of a field with a NULL type to an event");
 896         ok(bt_ctf_event_class_add_field(event_class, uint_35_type,
 897                 "int"),
 898                 "Reject addition of a type with an illegal name to an event");
 899         ok(bt_ctf_event_class_add_field(event_class, uint_35_type,
 900                 "uint_35") == 0,
 901                 "Add field of type unsigned integer to an event");
 902         ok(bt_ctf_event_class_add_field(event_class, int_16_type,
 903                 "int_16") == 0, "Add field of type signed integer to an event");
 904         ok(bt_ctf_event_class_add_field(event_class, complex_structure_type,
 905                 "complex_structure") == 0,
 906                 "Add composite structure to an event");
 907
 908         ok(bt_ctf_event_class_get_name(NULL) == NULL,
 909                 "bt_ctf_event_class_get_name handles NULL correctly");
 910         ret_string = bt_ctf_event_class_get_name(event_class);
 911         ok(!strcmp(ret_string, complex_test_event_string),
 912                 "bt_ctf_event_class_get_name returns a correct name");
 913         ok(bt_ctf_event_class_get_id(event_class) < 0,
 914                 "bt_ctf_event_class_get_id returns a negative value when not set");
 915         ok(bt_ctf_event_class_get_id(NULL) < 0,
 916                 "bt_ctf_event_class_get_id handles NULL correctly");
 917         ok(bt_ctf_event_class_set_id(NULL, 42) < 0,
 918                 "bt_ctf_event_class_set_id handles NULL correctly");
 919         ok(bt_ctf_event_class_set_id(event_class, 42) == 0,
 920                 "Set an event class' id");
 921         ok(bt_ctf_event_class_get_id(event_class) == 42,
 922                 "bt_ctf_event_class_get_id returns the correct value");
 923
 924         /* Test event class attributes */
 925         obj = bt_value_integer_create_init(15);
 926         assert(obj);
 927         ok(bt_ctf_event_class_set_attribute(NULL, "id", obj),
 928                 "bt_ctf_event_class_set_attribute handles a NULL event class correctly");
 929         ok(bt_ctf_event_class_set_attribute(event_class, NULL, obj),
 930                 "bt_ctf_event_class_set_attribute handles a NULL name correctly");
 931         ok(bt_ctf_event_class_set_attribute(event_class, "id", NULL),
 932                 "bt_ctf_event_class_set_attribute handles a NULL value correctly");
 933         assert(!bt_value_integer_set(obj, -3));
 934         ok(bt_ctf_event_class_set_attribute(event_class, "id", obj),
 935                 "bt_ctf_event_class_set_attribute fails with a negative \"id\" attribute");
 936         assert(!bt_value_integer_set(obj, 11));
 937         ret = bt_ctf_event_class_set_attribute(event_class, "id", obj);
 938         ok(!ret && bt_ctf_event_class_get_id(event_class) == 11,
 939                 "bt_ctf_event_class_set_attribute succeeds in replacing the existing \"id\" attribute");
 940         ret = bt_ctf_event_class_set_attribute(event_class, "name", obj);
 941         ret &= bt_ctf_event_class_set_attribute(event_class, "model.emf.uri", obj);
 942         ok(ret,
 943                 "bt_ctf_event_class_set_attribute cannot set \"name\" or \"model.emf.uri\" to an integer value");
 944         BT_PUT(obj);
 945
 946         obj = bt_value_integer_create_init(5);
 947         assert(obj);
 948         ok(!bt_ctf_event_class_set_attribute(event_class, "loglevel", obj),
 949                 "bt_ctf_event_class_set_attribute succeeds in setting the \"loglevel\" attribute");
 950         BT_PUT(obj);
 951         ok(!bt_ctf_event_class_get_attribute_value_by_name(NULL, "loglevel"),
 952                 "bt_ctf_event_class_get_attribute_value_by_name handles a NULL event class correctly");
 953         ok(!bt_ctf_event_class_get_attribute_value_by_name(event_class, NULL),
 954                 "bt_ctf_event_class_get_attribute_value_by_name handles a NULL name correctly");
 955         ok(!bt_ctf_event_class_get_attribute_value_by_name(event_class, "meow"),
 956                 "bt_ctf_event_class_get_attribute_value_by_name fails with a non-existing attribute name");
 957         obj = bt_ctf_event_class_get_attribute_value_by_name(event_class,
 958                 "loglevel");
 959         int64_value = 0;
 960         ret = bt_value_integer_get(obj, &int64_value);
 961         ok(obj && !ret && int64_value == 5,
 962                 "bt_ctf_event_class_get_attribute_value_by_name returns the correct value");
 963         BT_PUT(obj);
 964
 965         obj = bt_value_string_create_init("nu name");
 966         assert(obj);
 967         assert(!bt_ctf_event_class_set_attribute(event_class, "name", obj));
 968         ret_string = bt_ctf_event_class_get_name(event_class);
 969         ok(!strcmp(ret_string, "nu name"),
 970                 "bt_ctf_event_class_set_attribute succeeds in replacing the existing \"name\" attribute");
 971         ret = bt_ctf_event_class_set_attribute(event_class, "id", obj);
 972         ret &= bt_ctf_event_class_set_attribute(event_class, "loglevel", obj);
 973         ok(ret,
 974                 "bt_ctf_event_class_set_attribute cannot set \"id\" or \"loglevel\" to a string value");
 975         BT_PUT(obj);
 976         obj = bt_value_string_create_init("http://kernel.org/");
 977         assert(obj);
 978         assert(!bt_ctf_event_class_set_attribute(event_class, "model.emf.uri", obj));
 979         BT_PUT(obj);
 980
 981         ok(bt_ctf_event_class_get_attribute_count(NULL),
 982                 "bt_ctf_event_class_get_attribute_count handles a NULL event class");
 983         ok(bt_ctf_event_class_get_attribute_count(event_class) == 4,
 984                 "bt_ctf_event_class_get_attribute_count returns the correct count");
 985         ok(!bt_ctf_event_class_get_attribute_name(NULL, 0),
 986                 "bt_ctf_event_class_get_attribute_name handles a NULL event class correctly");
 987         ok(!bt_ctf_event_class_get_attribute_name(event_class, 4),
 988                 "bt_ctf_event_class_get_attribute_name handles a too large index correctly");
 989         ok(!bt_ctf_event_class_get_attribute_value(NULL, 0),
 990                 "bt_ctf_event_class_get_attribute_value handles a NULL event class correctly");
 991         ok(!bt_ctf_event_class_get_attribute_value(event_class, 4),
 992                 "bt_ctf_event_class_get_attribute_value handles a too large index correctly");
 993
 994         memset(&attrs_count, 0, sizeof(attrs_count));
 995
 996         for (i = 0; i < 4; ++i) {
 997                 ret_string = bt_ctf_event_class_get_attribute_name(event_class,
 998                         i);
 999                 obj = bt_ctf_event_class_get_attribute_value(event_class, i);
1000                 assert(ret_string && obj);
1001
1002                 if (!strcmp(ret_string, "id")) {
1003                         attrs_count.id++;
1004                         ok(bt_value_is_integer(obj),
1005                                 "bt_ctf_event_class_get_attribute_value returns the correct type (\"%s\")",
1006                                 ret_string);
1007                 } else if (!strcmp(ret_string, "name")) {
1008                         attrs_count.name++;
1009                         ok(bt_value_is_string(obj),
1010                                 "bt_ctf_event_class_get_attribute_value returns the correct type (\"%s\")",
1011                                 ret_string);
1012                 } else if (!strcmp(ret_string, "loglevel")) {
1013                         attrs_count.loglevel++;
1014                         ok(bt_value_is_integer(obj),
1015                                 "bt_ctf_event_class_get_attribute_value returns the correct type (\"%s\")",
1016                                 ret_string);
1017                 } else if (!strcmp(ret_string, "model.emf.uri")) {
1018                         attrs_count.modelemfuri++;
1019                         ok(bt_value_is_string(obj),
1020                                 "bt_ctf_event_class_get_attribute_value returns the correct type (\"%s\")",
1021                                 ret_string);
1022                 } else {
1023                         attrs_count.unknown++;
1024                 }
1025
1026                 BT_PUT(obj);
1027         }
1028
1029         ok(attrs_count.unknown == 0, "event class has no unknown attributes");
1030         ok(attrs_count.id == 1 && attrs_count.name == 1 &&
1031                 attrs_count.loglevel == 1 && attrs_count.modelemfuri == 1,
1032                 "event class has one instance of each known attribute");
1033
1034         /* Add event class to the stream class */
1035         ok(bt_ctf_stream_class_add_event_class(stream_class, NULL),
1036                 "Reject addition of NULL event class to a stream class");
1037         ok(bt_ctf_stream_class_add_event_class(stream_class,
1038                 event_class) == 0, "Add an event class to stream class");
1039
1040         ok(bt_ctf_event_class_get_stream_class(NULL) == NULL,
1041                 "bt_ctf_event_class_get_stream_class handles NULL correctly");
1042         ret_stream_class = bt_ctf_event_class_get_stream_class(event_class);
1043         ok(ret_stream_class == stream_class,
1044                 "bt_ctf_event_class_get_stream_class returns the correct stream class");
1045         bt_put(ret_stream_class);
1046
1047         ok(bt_ctf_event_class_get_field_count(NULL) < 0,
1048                 "bt_ctf_event_class_get_field_count handles NULL correctly");
1049         ok(bt_ctf_event_class_get_field_count(event_class) == 3,
1050                 "bt_ctf_event_class_get_field_count returns a correct value");
1051
1052         ok(bt_ctf_event_class_get_field(NULL, &ret_string,
1053                 &ret_field_type, 0) < 0,
1054                 "bt_ctf_event_class_get_field handles a NULL event class correctly");
1055         ok(bt_ctf_event_class_get_field(event_class, NULL,
1056                 &ret_field_type, 0) == 0,
1057                 "bt_ctf_event_class_get_field handles a NULL field name correctly");
1058         bt_put(ret_field_type);
1059         ok(bt_ctf_event_class_get_field(event_class, &ret_string,
1060                 NULL, 0) == 0,
1061                 "bt_ctf_event_class_get_field handles a NULL field type correctly");
1062         ok(bt_ctf_event_class_get_field(event_class, &ret_string,
1063                 &ret_field_type, 42) < 0,
1064                 "bt_ctf_event_class_get_field handles an invalid index correctly");
1065         ok(bt_ctf_event_class_get_field(event_class, &ret_string,
1066                 &ret_field_type, 0) == 0,
1067                 "bt_ctf_event_class_get_field returns a field");
1068         ok(bt_ctf_field_type_compare(ret_field_type, uint_35_type) == 0,
1069                 "bt_ctf_event_class_get_field returns a correct field type");
1070         bt_put(ret_field_type);
1071         ok(!strcmp(ret_string, "uint_35"),
1072                 "bt_ctf_event_class_get_field returns a correct field name");
1073         ok(bt_ctf_event_class_get_field_by_name(NULL, "") == NULL,
1074                 "bt_ctf_event_class_get_field_by_name handles a NULL event class correctly");
1075         ok(bt_ctf_event_class_get_field_by_name(event_class, NULL) == NULL,
1076                 "bt_ctf_event_class_get_field_by_name handles a NULL field name correctly");
1077         ok(bt_ctf_event_class_get_field_by_name(event_class, "truie") == NULL,
1078                 "bt_ctf_event_class_get_field_by_name handles an invalid field name correctly");
1079         ret_field_type = bt_ctf_event_class_get_field_by_name(event_class,
1080                 "complex_structure");
1081         ok(bt_ctf_field_type_compare(ret_field_type, complex_structure_type) == 0,
1082                 "bt_ctf_event_class_get_field_by_name returns a correct field type");
1083         bt_put(ret_field_type);
1084
1085         event = bt_ctf_event_create(event_class);
1086         ok(event, "Instanciate a complex event");
1087
1088         ok(bt_ctf_event_get_class(NULL) == NULL,
1089                 "bt_ctf_event_get_class handles NULL correctly");
1090         ret_event_class = bt_ctf_event_get_class(event);
1091         ok(ret_event_class == event_class,
1092                 "bt_ctf_event_get_class returns the correct event class");
1093         bt_put(ret_event_class);
1094
1095         uint_35_field = bt_ctf_event_get_payload(event, "uint_35");
1096         if (!uint_35_field) {
1097                 printf("uint_35_field is NULL\n");
1098         }
1099
1100         ok(uint_35_field, "Use bt_ctf_event_get_payload to get a field instance ");
1101         bt_ctf_field_unsigned_integer_set_value(uint_35_field, 0x0DDF00D);
1102         ok(bt_ctf_field_unsigned_integer_get_value(NULL, &ret_unsigned_int) < 0,
1103                 "bt_ctf_field_unsigned_integer_get_value properly properly handles a NULL field.");
1104         ok(bt_ctf_field_unsigned_integer_get_value(uint_35_field, NULL) < 0,
1105                 "bt_ctf_field_unsigned_integer_get_value properly handles a NULL return value");
1106         ok(bt_ctf_field_unsigned_integer_get_value(uint_35_field,
1107                 &ret_unsigned_int) == 0,
1108                 "bt_ctf_field_unsigned_integer_get_value succeeds after setting a value");
1109         ok(ret_unsigned_int == 0x0DDF00D,
1110                 "bt_ctf_field_unsigned_integer_get_value returns the correct value");
1111         ok(bt_ctf_field_signed_integer_get_value(uint_35_field,
1112                 &ret_signed_int) < 0,
1113                 "bt_ctf_field_signed_integer_get_value fails on an unsigned field");
1114         bt_put(uint_35_field);
1115
1116         int_16_field = bt_ctf_event_get_payload(event, "int_16");
1117         bt_ctf_field_signed_integer_set_value(int_16_field, -12345);
1118         ok(bt_ctf_field_signed_integer_get_value(NULL, &ret_signed_int) < 0,
1119                 "bt_ctf_field_signed_integer_get_value properly handles a NULL field");
1120         ok(bt_ctf_field_signed_integer_get_value(int_16_field, NULL) < 0,
1121                 "bt_ctf_field_signed_integer_get_value properly handles a NULL return value");
1122         ok(bt_ctf_field_signed_integer_get_value(int_16_field,
1123                 &ret_signed_int) == 0,
1124                 "bt_ctf_field_signed_integer_get_value succeeds after setting a value");
1125         ok(ret_signed_int == -12345,
1126                 "bt_ctf_field_signed_integer_get_value returns the correct value");
1127         ok(bt_ctf_field_unsigned_integer_get_value(int_16_field,
1128                 &ret_unsigned_int) < 0,
1129                 "bt_ctf_field_unsigned_integer_get_value fails on a signed field");
1130         bt_put(int_16_field);
1131
1132         complex_structure_field = bt_ctf_event_get_payload(event,
1133                 "complex_structure");
1134
1135         ok(bt_ctf_field_structure_get_field_by_index(NULL, 0) == NULL,
1136                 "bt_ctf_field_structure_get_field_by_index handles NULL correctly");
1137         ok(bt_ctf_field_structure_get_field_by_index(NULL, 9) == NULL,
1138                 "bt_ctf_field_structure_get_field_by_index handles an invalid index correctly");
1139         inner_structure_field = bt_ctf_field_structure_get_field_by_index(
1140                 complex_structure_field, 3);
1141         ret_field_type = bt_ctf_field_get_type(inner_structure_field);
1142         bt_put(inner_structure_field);
1143         ok(bt_ctf_field_type_compare(ret_field_type, inner_structure_type) == 0,
1144                 "bt_ctf_field_structure_get_field_by_index returns a correct field");
1145         bt_put(ret_field_type);
1146
1147         inner_structure_field = bt_ctf_field_structure_get_field(
1148                 complex_structure_field, "inner_structure");
1149         a_string_field = bt_ctf_field_structure_get_field(
1150                 complex_structure_field, "a_string");
1151         enum_variant_field = bt_ctf_field_structure_get_field(
1152                 complex_structure_field, "variant_selector");
1153         variant_field = bt_ctf_field_structure_get_field(
1154                 complex_structure_field, "variant_value");
1155         uint_35_field = bt_ctf_field_structure_get_field(
1156                 inner_structure_field, "seq_len");
1157         a_sequence_field = bt_ctf_field_structure_get_field(
1158                 inner_structure_field, "a_sequence");
1159         an_array_field = bt_ctf_field_structure_get_field(
1160                 inner_structure_field, "an_array");
1161
1162         enum_container_field = bt_ctf_field_enumeration_get_container(
1163                 enum_variant_field);
1164         bt_ctf_field_unsigned_integer_set_value(enum_container_field, 1);
1165         int_16_field = bt_ctf_field_variant_get_field(variant_field,
1166                 enum_variant_field);
1167         bt_ctf_field_signed_integer_set_value(int_16_field, -200);
1168         bt_put(int_16_field);
1169         ok(!bt_ctf_field_string_get_value(a_string_field),
1170                 "bt_ctf_field_string_get_value returns NULL on an unset field");
1171         bt_ctf_field_string_set_value(a_string_field,
1172                 test_string_1);
1173         ok(!bt_ctf_field_string_get_value(NULL),
1174                 "bt_ctf_field_string_get_value correctly handles NULL");
1175         ok(bt_ctf_field_string_append(NULL, "yeah"),
1176                 "bt_ctf_field_string_append correctly handles a NULL string field");
1177         ok(bt_ctf_field_string_append(a_string_field, NULL),
1178                 "bt_ctf_field_string_append correctly handles a NULL string value");
1179         ok(!bt_ctf_field_string_append(a_string_field, test_string_2),
1180                 "bt_ctf_field_string_append succeeds");
1181         ok(bt_ctf_field_string_append_len(NULL, "oh noes", 3),
1182                 "bt_ctf_field_string_append_len correctly handles a NULL string field");
1183         ok(bt_ctf_field_string_append_len(a_string_field, NULL, 3),
1184                 "bt_ctf_field_string_append_len correctly handles a NULL string value");
1185         ok(!bt_ctf_field_string_append_len(a_string_field, test_string_3, 5),
1186                 "bt_ctf_field_string_append_len succeeds (append 5 characters)");
1187         ok(!bt_ctf_field_string_append_len(a_string_field, test_string_4, 10),
1188                 "bt_ctf_field_string_append_len succeeds (append 4 characters)");
1189         ok(!bt_ctf_field_string_append_len(a_string_field, &test_string_4[4], 3),
1190                 "bt_ctf_field_string_append_len succeeds (append 0 characters)");
1191         ok(!bt_ctf_field_string_append_len(a_string_field, test_string_3, 0),
1192                 "bt_ctf_field_string_append_len succeeds (append 0 characters)");
1193
1194         ret_string = bt_ctf_field_string_get_value(a_string_field);
1195         ok(ret_string, "bt_ctf_field_string_get_value returns a string");
1196         ok(ret_string ? !strcmp(ret_string, test_string_cat) : 0,
1197                 "bt_ctf_field_string_get_value returns a correct value");
1198         bt_ctf_field_unsigned_integer_set_value(uint_35_field,
1199                 SEQUENCE_TEST_LENGTH);
1200
1201         ok(bt_ctf_field_type_variant_get_field_type_from_tag(NULL,
1202                 enum_container_field) == NULL,
1203                 "bt_ctf_field_type_variant_get_field_type_from_tag handles a NULL variant type correctly");
1204         ok(bt_ctf_field_type_variant_get_field_type_from_tag(variant_type,
1205                 NULL) == NULL,
1206                 "bt_ctf_field_type_variant_get_field_type_from_tag handles a NULL tag correctly");
1207         ret_field_type = bt_ctf_field_type_variant_get_field_type_from_tag(
1208                 variant_type, enum_variant_field);
1209         ok(ret_field_type == int_16_type,
1210                 "bt_ctf_field_type_variant_get_field_type_from_tag returns the correct field type");
1211
1212         ok(bt_ctf_field_sequence_get_length(a_sequence_field) == NULL,
1213                 "bt_ctf_field_sequence_get_length returns NULL when length is unset");
1214         ok(bt_ctf_field_sequence_set_length(a_sequence_field,
1215                 uint_35_field) == 0, "Set a sequence field's length");
1216         ret_field = bt_ctf_field_sequence_get_length(a_sequence_field);
1217         ok(ret_field == uint_35_field,
1218                 "bt_ctf_field_sequence_get_length returns the correct length field");
1219         ok(bt_ctf_field_sequence_get_length(NULL) == NULL,
1220                 "bt_ctf_field_sequence_get_length properly handles NULL");
1221
1222         for (i = 0; i < SEQUENCE_TEST_LENGTH; i++) {
1223                 int_16_field = bt_ctf_field_sequence_get_field(
1224                         a_sequence_field, i);
1225                 bt_ctf_field_signed_integer_set_value(int_16_field, 4 - i);
1226                 bt_put(int_16_field);
1227         }
1228
1229         for (i = 0; i < ARRAY_TEST_LENGTH; i++) {
1230                 int_16_field = bt_ctf_field_array_get_field(
1231                         an_array_field, i);
1232                 bt_ctf_field_signed_integer_set_value(int_16_field, i);
1233                 bt_put(int_16_field);
1234         }
1235
1236         stream_event_ctx_field = bt_ctf_event_get_stream_event_context(event);
1237         assert(stream_event_ctx_field);
1238         stream_event_ctx_int_field = bt_ctf_field_structure_get_field(
1239                 stream_event_ctx_field, "common_event_context");
1240         BT_PUT(stream_event_ctx_field);
1241         bt_ctf_field_unsigned_integer_set_value(stream_event_ctx_int_field, 17);
1242         BT_PUT(stream_event_ctx_int_field);
1243
1244         bt_ctf_clock_set_time(clock, ++current_time);
1245         ok(bt_ctf_stream_append_event(stream, event) == 0,
1246                 "Append a complex event to a stream");
1247
1248         /*
1249          * Populate the custom packet context field with a dummy value
1250          * otherwise flush will fail.
1251          */
1252         packet_context = bt_ctf_stream_get_packet_context(stream);
1253         packet_context_field = bt_ctf_field_structure_get_field(packet_context,
1254                 "custom_packet_context_field");
1255         bt_ctf_field_unsigned_integer_set_value(packet_context_field, 1);
1256
1257         ok(bt_ctf_stream_flush(stream) == 0,
1258                 "Flush a stream containing a complex event");
1259
1260         bt_put(uint_35_field);
1261         bt_put(a_string_field);
1262         bt_put(inner_structure_field);
1263         bt_put(complex_structure_field);
1264         bt_put(a_sequence_field);
1265         bt_put(an_array_field);
1266         bt_put(enum_variant_field);
1267         bt_put(enum_container_field);
1268         bt_put(variant_field);
1269         bt_put(ret_field);
1270         bt_put(packet_context_field);
1271         bt_put(packet_context);
1272         bt_put(uint_35_type);
1273         bt_put(int_16_type);
1274         bt_put(string_type);
1275         bt_put(sequence_type);
1276         bt_put(array_type);
1277         bt_put(inner_structure_type);
1278         bt_put(complex_structure_type);
1279         bt_put(uint_3_type);
1280         bt_put(enum_variant_type);
1281         bt_put(variant_type);
1282         bt_put(ret_field_type);
1283         bt_put(event_class);
1284         bt_put(event);
1285 }
1286
1287 static
1288 void field_copy_tests_validate_same_type(struct bt_ctf_field *field,
1289                 struct bt_ctf_field_type *expected_type, const char *name)
1290 {
1291         struct bt_ctf_field_type *copy_type;
1292
1293         copy_type = bt_ctf_field_get_type(field);
1294         ok(copy_type == expected_type,
1295                 "bt_ctf_field_copy does not copy the type (%s)", name);
1296         bt_put(copy_type);
1297 }
1298
1299 static
1300 void field_copy_tests_validate_diff_ptrs(struct bt_ctf_field *field_a,
1301                 struct bt_ctf_field *field_b, const char *name)
1302 {
1303         ok(field_a != field_b,
1304                 "bt_ctf_field_copy creates different pointers (%s)", name);
1305 }
1306
1307 static
1308 void field_copy_tests()
1309 {
1310         struct bt_ctf_field_type *len_type = NULL;
1311         struct bt_ctf_field_type *fp_type = NULL;
1312         struct bt_ctf_field_type *s_type = NULL;
1313         struct bt_ctf_field_type *e_int_type = NULL;
1314         struct bt_ctf_field_type *e_type = NULL;
1315         struct bt_ctf_field_type *v_type = NULL;
1316         struct bt_ctf_field_type *v_label1_type = NULL;
1317         struct bt_ctf_field_type *v_label1_array_type = NULL;
1318         struct bt_ctf_field_type *v_label2_type = NULL;
1319         struct bt_ctf_field_type *v_label2_seq_type = NULL;
1320         struct bt_ctf_field_type *strct_type = NULL;
1321         struct bt_ctf_field *len = NULL;
1322         struct bt_ctf_field *fp = NULL;
1323         struct bt_ctf_field *s = NULL;
1324         struct bt_ctf_field *e_int = NULL;
1325         struct bt_ctf_field *e = NULL;
1326         struct bt_ctf_field *v = NULL;
1327         struct bt_ctf_field *v_selected = NULL;
1328         struct bt_ctf_field *v_selected_cur = NULL;
1329         struct bt_ctf_field *v_selected_0 = NULL;
1330         struct bt_ctf_field *v_selected_1 = NULL;
1331         struct bt_ctf_field *v_selected_2 = NULL;
1332         struct bt_ctf_field *v_selected_3 = NULL;
1333         struct bt_ctf_field *v_selected_4 = NULL;
1334         struct bt_ctf_field *v_selected_5 = NULL;
1335         struct bt_ctf_field *v_selected_6 = NULL;
1336         struct bt_ctf_field *a = NULL;
1337         struct bt_ctf_field *a_0 = NULL;
1338         struct bt_ctf_field *a_1 = NULL;
1339         struct bt_ctf_field *a_2 = NULL;
1340         struct bt_ctf_field *a_3 = NULL;
1341         struct bt_ctf_field *a_4 = NULL;
1342         struct bt_ctf_field *strct = NULL;
1343         struct bt_ctf_field *len_copy = NULL;
1344         struct bt_ctf_field *fp_copy = NULL;
1345         struct bt_ctf_field *s_copy = NULL;
1346         struct bt_ctf_field *e_int_copy = NULL;
1347         struct bt_ctf_field *e_copy = NULL;
1348         struct bt_ctf_field *v_copy = NULL;
1349         struct bt_ctf_field *v_selected_copy = NULL;
1350         struct bt_ctf_field *v_selected_copy_len = NULL;
1351         struct bt_ctf_field *v_selected_0_copy = NULL;
1352         struct bt_ctf_field *v_selected_1_copy = NULL;
1353         struct bt_ctf_field *v_selected_2_copy = NULL;
1354         struct bt_ctf_field *v_selected_3_copy = NULL;
1355         struct bt_ctf_field *v_selected_4_copy = NULL;
1356         struct bt_ctf_field *v_selected_5_copy = NULL;
1357         struct bt_ctf_field *v_selected_6_copy = NULL;
1358         struct bt_ctf_field *a_copy = NULL;
1359         struct bt_ctf_field *a_0_copy = NULL;
1360         struct bt_ctf_field *a_1_copy = NULL;
1361         struct bt_ctf_field *a_2_copy = NULL;
1362         struct bt_ctf_field *a_3_copy = NULL;
1363         struct bt_ctf_field *a_4_copy = NULL;
1364         struct bt_ctf_field *strct_copy = NULL;
1365         uint64_t uint64_t_val;
1366         const char *str_val;
1367         double double_val;
1368         int ret;
1369
1370         /* create len type */
1371         len_type = bt_ctf_field_type_integer_create(32);
1372         assert(len_type);
1373
1374         /* create fp type */
1375         fp_type = bt_ctf_field_type_floating_point_create();
1376         assert(fp_type);
1377
1378         /* create s type */
1379         s_type = bt_ctf_field_type_string_create();
1380         assert(s_type);
1381
1382         /* create e_int type */
1383         e_int_type = bt_ctf_field_type_integer_create(8);
1384         assert(e_int_type);
1385
1386         /* create e type */
1387         e_type = bt_ctf_field_type_enumeration_create(e_int_type);
1388         assert(e_type);
1389         ret = bt_ctf_field_type_enumeration_add_mapping(e_type, "LABEL1",
1390                 10, 15);
1391         assert(!ret);
1392         ret = bt_ctf_field_type_enumeration_add_mapping(e_type, "LABEL2",
1393                 23, 23);
1394         assert(!ret);
1395
1396         /* create v_label1 type */
1397         v_label1_type = bt_ctf_field_type_string_create();
1398         assert(v_label1_type);
1399
1400         /* create v_label1_array type */
1401         v_label1_array_type = bt_ctf_field_type_array_create(v_label1_type, 5);
1402         assert(v_label1_array_type);
1403
1404         /* create v_label2 type */
1405         v_label2_type = bt_ctf_field_type_integer_create(16);
1406         assert(v_label2_type);
1407
1408         /* create v_label2_seq type */
1409         v_label2_seq_type = bt_ctf_field_type_sequence_create(v_label2_type,
1410                 "len");
1411         assert(v_label2_seq_type);
1412
1413         /* create v type */
1414         v_type = bt_ctf_field_type_variant_create(e_type, "e");
1415         assert(v_type);
1416         ret = bt_ctf_field_type_variant_add_field(v_type, v_label1_array_type,
1417                 "LABEL1");
1418         assert(!ret);
1419         ret = bt_ctf_field_type_variant_add_field(v_type, v_label2_seq_type,
1420                 "LABEL2");
1421         assert(!ret);
1422
1423         /* create strct type */
1424         strct_type = bt_ctf_field_type_structure_create();
1425         assert(strct_type);
1426         ret = bt_ctf_field_type_structure_add_field(strct_type, len_type,
1427                 "len");
1428         assert(!ret);
1429         ret = bt_ctf_field_type_structure_add_field(strct_type, fp_type, "fp");
1430         assert(!ret);
1431         ret = bt_ctf_field_type_structure_add_field(strct_type, s_type, "s");
1432         assert(!ret);
1433         ret = bt_ctf_field_type_structure_add_field(strct_type, e_type, "e");
1434         assert(!ret);
1435         ret = bt_ctf_field_type_structure_add_field(strct_type, v_type, "v");
1436         assert(!ret);
1437         ret = bt_ctf_field_type_structure_add_field(strct_type,
1438                 v_label1_array_type, "a");
1439         assert(!ret);
1440
1441         /* create strct */
1442         strct = bt_ctf_field_create(strct_type);
1443         assert(strct);
1444
1445         /* get len field */
1446         len = bt_ctf_field_structure_get_field(strct, "len");
1447         assert(len);
1448
1449         /* get fp field */
1450         fp = bt_ctf_field_structure_get_field(strct, "fp");
1451         assert(fp);
1452
1453         /* get s field */
1454         s = bt_ctf_field_structure_get_field(strct, "s");
1455         assert(s);
1456
1457         /* get e field */
1458         e = bt_ctf_field_structure_get_field(strct, "e");
1459         assert(e);
1460
1461         /* get e_int (underlying integer) */
1462         e_int = bt_ctf_field_enumeration_get_container(e);
1463         assert(e_int);
1464
1465         /* get v field */
1466         v = bt_ctf_field_structure_get_field(strct, "v");
1467         assert(v);
1468
1469         /* get a field */
1470         a = bt_ctf_field_structure_get_field(strct, "a");
1471         assert(a);
1472
1473         /* set len field */
1474         ret = bt_ctf_field_unsigned_integer_set_value(len, 7);
1475         assert(!ret);
1476
1477         /* set fp field */
1478         ret = bt_ctf_field_floating_point_set_value(fp, 3.14);
1479         assert(!ret);
1480
1481         /* set s field */
1482         ret = bt_ctf_field_string_set_value(s, "btbt");
1483         assert(!ret);
1484
1485         /* set e field (LABEL2) */
1486         ret = bt_ctf_field_unsigned_integer_set_value(e_int, 23);
1487         assert(!ret);
1488
1489         /* set v field */
1490         v_selected = bt_ctf_field_variant_get_field(v, e);
1491         assert(v_selected);
1492         ok(!bt_ctf_field_variant_get_current_field(NULL),
1493                 "bt_ctf_field_variant_get_current_field handles NULL correctly");
1494         v_selected_cur = bt_ctf_field_variant_get_current_field(v);
1495         ok(v_selected_cur == v_selected,
1496                 "bt_ctf_field_variant_get_current_field returns the current field");
1497         bt_put(v_selected_cur);
1498
1499         /* set selected v field */
1500         ret = bt_ctf_field_sequence_set_length(v_selected, len);
1501         assert(!ret);
1502         v_selected_0 = bt_ctf_field_sequence_get_field(v_selected, 0);
1503         assert(v_selected_0);
1504         ret = bt_ctf_field_unsigned_integer_set_value(v_selected_0, 7);
1505         assert(!ret);
1506         v_selected_1 = bt_ctf_field_sequence_get_field(v_selected, 1);
1507         assert(v_selected_1);
1508         ret = bt_ctf_field_unsigned_integer_set_value(v_selected_1, 6);
1509         assert(!ret);
1510         v_selected_2 = bt_ctf_field_sequence_get_field(v_selected, 2);
1511         assert(v_selected_2);
1512         ret = bt_ctf_field_unsigned_integer_set_value(v_selected_2, 5);
1513         assert(!ret);
1514         v_selected_3 = bt_ctf_field_sequence_get_field(v_selected, 3);
1515         assert(v_selected_3);
1516         ret = bt_ctf_field_unsigned_integer_set_value(v_selected_3, 4);
1517         assert(!ret);
1518         v_selected_4 = bt_ctf_field_sequence_get_field(v_selected, 4);
1519         assert(v_selected_4);
1520         ret = bt_ctf_field_unsigned_integer_set_value(v_selected_4, 3);
1521         assert(!ret);
1522         v_selected_5 = bt_ctf_field_sequence_get_field(v_selected, 5);
1523         assert(v_selected_5);
1524         ret = bt_ctf_field_unsigned_integer_set_value(v_selected_5, 2);
1525         assert(!ret);
1526         v_selected_6 = bt_ctf_field_sequence_get_field(v_selected, 6);
1527         assert(v_selected_6);
1528         ret = bt_ctf_field_unsigned_integer_set_value(v_selected_6, 1);
1529         assert(!ret);
1530
1531         /* set a field */
1532         a_0 = bt_ctf_field_array_get_field(a, 0);
1533         assert(a_0);
1534         ret = bt_ctf_field_string_set_value(a_0, "a_0");
1535         assert(!ret);
1536         a_1 = bt_ctf_field_array_get_field(a, 1);
1537         assert(a_1);
1538         ret = bt_ctf_field_string_set_value(a_1, "a_1");
1539         assert(!ret);
1540         a_2 = bt_ctf_field_array_get_field(a, 2);
1541         assert(a_2);
1542         ret = bt_ctf_field_string_set_value(a_2, "a_2");
1543         assert(!ret);
1544         a_3 = bt_ctf_field_array_get_field(a, 3);
1545         assert(a_3);
1546         ret = bt_ctf_field_string_set_value(a_3, "a_3");
1547         assert(!ret);
1548         a_4 = bt_ctf_field_array_get_field(a, 4);
1549         assert(a_4);
1550         ret = bt_ctf_field_string_set_value(a_4, "a_4");
1551         assert(!ret);
1552
1553         /* create copy of strct */
1554         ok(!bt_ctf_field_copy(NULL),
1555                 "bt_ctf_field_copy handles NULL correctly");
1556         strct_copy = bt_ctf_field_copy(strct);
1557         ok(strct_copy,
1558                 "bt_ctf_field_copy returns a valid pointer");
1559
1560         /* get all copied fields */
1561         len_copy = bt_ctf_field_structure_get_field(strct_copy, "len");
1562         assert(len_copy);
1563         fp_copy = bt_ctf_field_structure_get_field(strct_copy, "fp");
1564         assert(fp_copy);
1565         s_copy = bt_ctf_field_structure_get_field(strct_copy, "s");
1566         assert(s_copy);
1567         e_copy = bt_ctf_field_structure_get_field(strct_copy, "e");
1568         assert(e_copy);
1569         e_int_copy = bt_ctf_field_enumeration_get_container(e_copy);
1570         assert(e_int_copy);
1571         v_copy = bt_ctf_field_structure_get_field(strct_copy, "v");
1572         assert(v_copy);
1573         v_selected_copy = bt_ctf_field_variant_get_field(v_copy, e_copy);
1574         assert(v_selected_copy);
1575         v_selected_0_copy = bt_ctf_field_sequence_get_field(v_selected_copy, 0);
1576         assert(v_selected_0_copy);
1577         v_selected_1_copy = bt_ctf_field_sequence_get_field(v_selected_copy, 1);
1578         assert(v_selected_1_copy);
1579         v_selected_2_copy = bt_ctf_field_sequence_get_field(v_selected_copy, 2);
1580         assert(v_selected_2_copy);
1581         v_selected_3_copy = bt_ctf_field_sequence_get_field(v_selected_copy, 3);
1582         assert(v_selected_3_copy);
1583         v_selected_4_copy = bt_ctf_field_sequence_get_field(v_selected_copy, 4);
1584         assert(v_selected_4_copy);
1585         v_selected_5_copy = bt_ctf_field_sequence_get_field(v_selected_copy, 5);
1586         assert(v_selected_5_copy);
1587         v_selected_6_copy = bt_ctf_field_sequence_get_field(v_selected_copy, 6);
1588         assert(v_selected_6_copy);
1589         ok(!bt_ctf_field_sequence_get_field(v_selected_copy, 7),
1590                 "sequence field copy is not too large");
1591         a_copy = bt_ctf_field_structure_get_field(strct_copy, "a");
1592         assert(a_copy);
1593         a_0_copy = bt_ctf_field_array_get_field(a_copy, 0);
1594         assert(a_0_copy);
1595         a_1_copy = bt_ctf_field_array_get_field(a_copy, 1);
1596         assert(a_1_copy);
1597         a_2_copy = bt_ctf_field_array_get_field(a_copy, 2);
1598         assert(a_2_copy);
1599         a_3_copy = bt_ctf_field_array_get_field(a_copy, 3);
1600         assert(a_3_copy);
1601         a_4_copy = bt_ctf_field_array_get_field(a_copy, 4);
1602         assert(a_4_copy);
1603         ok(!bt_ctf_field_array_get_field(v_selected_copy, 5),
1604                 "array field copy is not too large");
1605
1606         /* make sure copied fields are different pointers */
1607         field_copy_tests_validate_diff_ptrs(strct_copy, strct, "strct");
1608         field_copy_tests_validate_diff_ptrs(len_copy, len, "len");
1609         field_copy_tests_validate_diff_ptrs(fp_copy, fp, "fp");
1610         field_copy_tests_validate_diff_ptrs(s_copy, s, "s");
1611         field_copy_tests_validate_diff_ptrs(e_int_copy, e_int, "e_int");
1612         field_copy_tests_validate_diff_ptrs(e_copy, e, "e");
1613         field_copy_tests_validate_diff_ptrs(v_copy, v, "v");
1614         field_copy_tests_validate_diff_ptrs(v_selected_copy, v_selected,
1615                 "v_selected");
1616         field_copy_tests_validate_diff_ptrs(v_selected_0_copy, v_selected_0,
1617                 "v_selected_0");
1618         field_copy_tests_validate_diff_ptrs(v_selected_1_copy, v_selected_1,
1619                 "v_selected_1");
1620         field_copy_tests_validate_diff_ptrs(v_selected_2_copy, v_selected_2,
1621                 "v_selected_2");
1622         field_copy_tests_validate_diff_ptrs(v_selected_3_copy, v_selected_3,
1623                 "v_selected_3");
1624         field_copy_tests_validate_diff_ptrs(v_selected_4_copy, v_selected_4,
1625                 "v_selected_4");
1626         field_copy_tests_validate_diff_ptrs(v_selected_5_copy, v_selected_5,
1627                 "v_selected_5");
1628         field_copy_tests_validate_diff_ptrs(v_selected_6_copy, v_selected_6,
1629                 "v_selected_6");
1630         field_copy_tests_validate_diff_ptrs(a_copy, a, "a");
1631         field_copy_tests_validate_diff_ptrs(a_0_copy, a_0, "a_0");
1632         field_copy_tests_validate_diff_ptrs(a_1_copy, a_1, "a_1");
1633         field_copy_tests_validate_diff_ptrs(a_2_copy, a_2, "a_2");
1634         field_copy_tests_validate_diff_ptrs(a_3_copy, a_3, "a_3");
1635         field_copy_tests_validate_diff_ptrs(a_4_copy, a_4, "a_4");
1636
1637         /* make sure copied fields share the same types */
1638         field_copy_tests_validate_same_type(strct_copy, strct_type, "strct");
1639         field_copy_tests_validate_same_type(len_copy, len_type, "len");
1640         field_copy_tests_validate_same_type(fp_copy, fp_type, "fp");
1641         field_copy_tests_validate_same_type(e_int_copy, e_int_type, "e_int");
1642         field_copy_tests_validate_same_type(e_copy, e_type, "e");
1643         field_copy_tests_validate_same_type(v_copy, v_type, "v");
1644         field_copy_tests_validate_same_type(v_selected_copy, v_label2_seq_type,
1645                 "v_selected");
1646         field_copy_tests_validate_same_type(v_selected_0_copy, v_label2_type,
1647                 "v_selected_0");
1648         field_copy_tests_validate_same_type(v_selected_1_copy, v_label2_type,
1649                 "v_selected_1");
1650         field_copy_tests_validate_same_type(v_selected_2_copy, v_label2_type,
1651                 "v_selected_2");
1652         field_copy_tests_validate_same_type(v_selected_3_copy, v_label2_type,
1653                 "v_selected_3");
1654         field_copy_tests_validate_same_type(v_selected_4_copy, v_label2_type,
1655                 "v_selected_4");
1656         field_copy_tests_validate_same_type(v_selected_5_copy, v_label2_type,
1657                 "v_selected_5");
1658         field_copy_tests_validate_same_type(v_selected_6_copy, v_label2_type,
1659                 "v_selected_6");
1660         field_copy_tests_validate_same_type(a_copy, v_label1_array_type, "a");
1661         field_copy_tests_validate_same_type(a_0_copy, v_label1_type, "a_0");
1662         field_copy_tests_validate_same_type(a_1_copy, v_label1_type, "a_1");
1663         field_copy_tests_validate_same_type(a_2_copy, v_label1_type, "a_2");
1664         field_copy_tests_validate_same_type(a_3_copy, v_label1_type, "a_3");
1665         field_copy_tests_validate_same_type(a_4_copy, v_label1_type, "a_4");
1666
1667         /* validate len copy */
1668         ret = bt_ctf_field_unsigned_integer_get_value(len_copy, &uint64_t_val);
1669         assert(!ret);
1670         ok(uint64_t_val == 7,
1671                 "bt_ctf_field_copy creates a valid integer field copy");
1672
1673         /* validate fp copy */
1674         ret = bt_ctf_field_floating_point_get_value(fp_copy, &double_val);
1675         assert(!ret);
1676         ok(double_val == 3.14,
1677                 "bt_ctf_field_copy creates a valid floating point number field copy");
1678
1679         /* validate s copy */
1680         str_val = bt_ctf_field_string_get_value(s_copy);
1681         ok(str_val && !strcmp(str_val, "btbt"),
1682                 "bt_ctf_field_copy creates a valid string field copy");
1683
1684         /* validate e_int copy */
1685         ret = bt_ctf_field_unsigned_integer_get_value(e_int_copy,
1686                 &uint64_t_val);
1687         assert(!ret);
1688         ok(uint64_t_val == 23,
1689                 "bt_ctf_field_copy creates a valid enum's integer field copy");
1690
1691         /* validate e copy */
1692         str_val = bt_ctf_field_enumeration_get_mapping_name(e_copy);
1693         ok(str_val && !strcmp(str_val, "LABEL2"),
1694                 "bt_ctf_field_copy creates a valid enum field copy");
1695
1696         /* validate v_selected copy */
1697         v_selected_copy_len = bt_ctf_field_sequence_get_length(v_selected);
1698         assert(v_selected_copy_len);
1699         ret = bt_ctf_field_unsigned_integer_get_value(v_selected_copy_len,
1700                 &uint64_t_val);
1701         assert(!ret);
1702         ok(uint64_t_val == 7,
1703                 "bt_ctf_field_copy creates a sequence field copy with the proper length");
1704         bt_put(v_selected_copy_len);
1705         v_selected_copy_len = NULL;
1706
1707         /* validate v_selected copy fields */
1708         ret = bt_ctf_field_unsigned_integer_get_value(v_selected_0_copy,
1709                 &uint64_t_val);
1710         assert(!ret);
1711         ok(uint64_t_val == 7,
1712                 "bt_ctf_field_copy creates a valid sequence field element copy (v_selected_0)");
1713         ret = bt_ctf_field_unsigned_integer_get_value(v_selected_1_copy,
1714                 &uint64_t_val);
1715         assert(!ret);
1716         ok(uint64_t_val == 6,
1717                 "bt_ctf_field_copy creates a valid sequence field element copy (v_selected_1)");
1718         ret = bt_ctf_field_unsigned_integer_get_value(v_selected_2_copy,
1719                 &uint64_t_val);
1720         assert(!ret);
1721         ok(uint64_t_val == 5,
1722                 "bt_ctf_field_copy creates a valid sequence field element copy (v_selected_2)");
1723         ret = bt_ctf_field_unsigned_integer_get_value(v_selected_3_copy,
1724                 &uint64_t_val);
1725         assert(!ret);
1726         ok(uint64_t_val == 4,
1727                 "bt_ctf_field_copy creates a valid sequence field element copy (v_selected_3)");
1728         ret = bt_ctf_field_unsigned_integer_get_value(v_selected_4_copy,
1729                 &uint64_t_val);
1730         assert(!ret);
1731         ok(uint64_t_val == 3,
1732                 "bt_ctf_field_copy creates a valid sequence field element copy (v_selected_4)");
1733         ret = bt_ctf_field_unsigned_integer_get_value(v_selected_5_copy,
1734                 &uint64_t_val);
1735         assert(!ret);
1736         ok(uint64_t_val == 2,
1737                 "bt_ctf_field_copy creates a valid sequence field element copy (v_selected_5)");
1738         ret = bt_ctf_field_unsigned_integer_get_value(v_selected_6_copy,
1739                 &uint64_t_val);
1740         assert(!ret);
1741         ok(uint64_t_val == 1,
1742                 "bt_ctf_field_copy creates a valid sequence field element copy (v_selected_6)");
1743
1744         /* validate a copy fields */
1745         str_val = bt_ctf_field_string_get_value(a_0_copy);
1746         ok(str_val && !strcmp(str_val, "a_0"),
1747                 "bt_ctf_field_copy creates a valid array field element copy (a_0)");
1748         str_val = bt_ctf_field_string_get_value(a_1_copy);
1749         ok(str_val && !strcmp(str_val, "a_1"),
1750                 "bt_ctf_field_copy creates a valid array field element copy (a_1)");
1751         str_val = bt_ctf_field_string_get_value(a_2_copy);
1752         ok(str_val && !strcmp(str_val, "a_2"),
1753                 "bt_ctf_field_copy creates a valid array field element copy (a_2)");
1754         str_val = bt_ctf_field_string_get_value(a_3_copy);
1755         ok(str_val && !strcmp(str_val, "a_3"),
1756                 "bt_ctf_field_copy creates a valid array field element copy (a_3)");
1757         str_val = bt_ctf_field_string_get_value(a_4_copy);
1758         ok(str_val && !strcmp(str_val, "a_4"),
1759                 "bt_ctf_field_copy creates a valid array field element copy (a_4)");
1760
1761         /* put everything */
1762         bt_put(len_type);
1763         bt_put(fp_type);
1764         bt_put(s_type);
1765         bt_put(e_int_type);
1766         bt_put(e_type);
1767         bt_put(v_type);
1768         bt_put(v_label1_type);
1769         bt_put(v_label1_array_type);
1770         bt_put(v_label2_type);
1771         bt_put(v_label2_seq_type);
1772         bt_put(strct_type);
1773         bt_put(len);
1774         bt_put(fp);
1775         bt_put(s);
1776         bt_put(e_int);
1777         bt_put(e);
1778         bt_put(v);
1779         bt_put(v_selected);
1780         bt_put(v_selected_0);
1781         bt_put(v_selected_1);
1782         bt_put(v_selected_2);
1783         bt_put(v_selected_3);
1784         bt_put(v_selected_4);
1785         bt_put(v_selected_5);
1786         bt_put(v_selected_6);
1787         bt_put(a);
1788         bt_put(a_0);
1789         bt_put(a_1);
1790         bt_put(a_2);
1791         bt_put(a_3);
1792         bt_put(a_4);
1793         bt_put(strct);
1794         bt_put(len_copy);
1795         bt_put(fp_copy);
1796         bt_put(s_copy);
1797         bt_put(e_int_copy);
1798         bt_put(e_copy);
1799         bt_put(v_copy);
1800         bt_put(v_selected_copy);
1801         bt_put(v_selected_0_copy);
1802         bt_put(v_selected_1_copy);
1803         bt_put(v_selected_2_copy);
1804         bt_put(v_selected_3_copy);
1805         bt_put(v_selected_4_copy);
1806         bt_put(v_selected_5_copy);
1807         bt_put(v_selected_6_copy);
1808         bt_put(a_copy);
1809         bt_put(a_0_copy);
1810         bt_put(a_1_copy);
1811         bt_put(a_2_copy);
1812         bt_put(a_3_copy);
1813         bt_put(a_4_copy);
1814         bt_put(strct_copy);
1815 }
1816
1817 static
1818 void type_field_tests()
1819 {
1820         struct bt_ctf_field *uint_12;
1821         struct bt_ctf_field *int_16;
1822         struct bt_ctf_field *string;
1823         struct bt_ctf_field *enumeration;
1824         struct bt_ctf_field_type *composite_structure_type;
1825         struct bt_ctf_field_type *structure_seq_type;
1826         struct bt_ctf_field_type *string_type;
1827         struct bt_ctf_field_type *sequence_type;
1828         struct bt_ctf_field_type *uint_8_type;
1829         struct bt_ctf_field_type *int_16_type;
1830         struct bt_ctf_field_type *uint_12_type =
1831                 bt_ctf_field_type_integer_create(12);
1832         struct bt_ctf_field_type *enumeration_type;
1833         struct bt_ctf_field_type *returned_type;
1834         const char *ret_string;
1835
1836         returned_type = bt_ctf_field_get_type(NULL);
1837         ok(!returned_type, "bt_ctf_field_get_type handles NULL correctly");
1838
1839         ok(uint_12_type, "Create an unsigned integer type");
1840         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1841                 BT_CTF_INTEGER_BASE_BINARY) == 0,
1842                 "Set integer type's base as binary");
1843         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1844                 BT_CTF_INTEGER_BASE_DECIMAL) == 0,
1845                 "Set integer type's base as decimal");
1846         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1847                 BT_CTF_INTEGER_BASE_UNKNOWN),
1848                 "Reject integer type's base set as unknown");
1849         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1850                 BT_CTF_INTEGER_BASE_OCTAL) == 0,
1851                 "Set integer type's base as octal");
1852         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1853                 BT_CTF_INTEGER_BASE_HEXADECIMAL) == 0,
1854                 "Set integer type's base as hexadecimal");
1855         ok(bt_ctf_field_type_integer_set_base(uint_12_type, 457417),
1856                 "Reject unknown integer base value");
1857         ok(bt_ctf_field_type_integer_set_signed(uint_12_type, 952835) == 0,
1858                 "Set integer type signedness to signed");
1859         ok(bt_ctf_field_type_integer_set_signed(uint_12_type, 0) == 0,
1860                 "Set integer type signedness to unsigned");
1861         ok(bt_ctf_field_type_integer_get_size(NULL) < 0,
1862                 "bt_ctf_field_type_integer_get_size handles NULL correctly");
1863         ok(bt_ctf_field_type_integer_get_size(uint_12_type) == 12,
1864                 "bt_ctf_field_type_integer_get_size returns a correct value");
1865         ok(bt_ctf_field_type_integer_get_signed(NULL) < 0,
1866                 "bt_ctf_field_type_integer_get_signed handles NULL correctly");
1867         ok(bt_ctf_field_type_integer_get_signed(uint_12_type) == 0,
1868                 "bt_ctf_field_type_integer_get_signed returns a correct value for unsigned types");
1869
1870         ok(bt_ctf_field_type_set_byte_order(NULL,
1871                 BT_CTF_BYTE_ORDER_LITTLE_ENDIAN) < 0,
1872                 "bt_ctf_field_type_set_byte_order handles NULL correctly");
1873         ok(bt_ctf_field_type_set_byte_order(uint_12_type,
1874                 (enum bt_ctf_byte_order) 42) < 0,
1875                 "bt_ctf_field_type_set_byte_order rejects invalid values");
1876         ok(bt_ctf_field_type_set_byte_order(uint_12_type,
1877                 BT_CTF_BYTE_ORDER_LITTLE_ENDIAN) == 0,
1878                 "Set an integer's byte order to little endian");
1879         ok(bt_ctf_field_type_set_byte_order(uint_12_type,
1880                 BT_CTF_BYTE_ORDER_BIG_ENDIAN) == 0,
1881                 "Set an integer's byte order to big endian");
1882         ok(bt_ctf_field_type_get_byte_order(uint_12_type) ==
1883                 BT_CTF_BYTE_ORDER_BIG_ENDIAN,
1884                 "bt_ctf_field_type_get_byte_order returns a correct value");
1885         ok(bt_ctf_field_type_get_byte_order(NULL) ==
1886                 BT_CTF_BYTE_ORDER_UNKNOWN,
1887                 "bt_ctf_field_type_get_byte_order handles NULL correctly");
1888
1889         ok(bt_ctf_field_type_get_type_id(NULL) ==
1890                 BT_CTF_TYPE_ID_UNKNOWN,
1891                 "bt_ctf_field_type_get_type_id handles NULL correctly");
1892         ok(bt_ctf_field_type_get_type_id(uint_12_type) ==
1893                 BT_CTF_TYPE_ID_INTEGER,
1894                 "bt_ctf_field_type_get_type_id returns a correct value with an integer type");
1895
1896         ok(bt_ctf_field_type_integer_get_base(NULL) ==
1897                 BT_CTF_INTEGER_BASE_UNKNOWN,
1898                 "bt_ctf_field_type_integer_get_base handles NULL correctly");
1899         ok(bt_ctf_field_type_integer_get_base(uint_12_type) ==
1900                 BT_CTF_INTEGER_BASE_HEXADECIMAL,
1901                 "bt_ctf_field_type_integer_get_base returns a correct value");
1902
1903         ok(bt_ctf_field_type_integer_set_encoding(NULL,
1904                 BT_CTF_STRING_ENCODING_ASCII) < 0,
1905                 "bt_ctf_field_type_integer_set_encoding handles NULL correctly");
1906         ok(bt_ctf_field_type_integer_set_encoding(uint_12_type,
1907                 (enum bt_ctf_string_encoding) 123) < 0,
1908                 "bt_ctf_field_type_integer_set_encoding handles invalid encodings correctly");
1909         ok(bt_ctf_field_type_integer_set_encoding(uint_12_type,
1910                 BT_CTF_STRING_ENCODING_UTF8) == 0,
1911                 "Set integer type encoding to UTF8");
1912         ok(bt_ctf_field_type_integer_get_encoding(NULL) ==
1913                 BT_CTF_STRING_ENCODING_UNKNOWN,
1914                 "bt_ctf_field_type_integer_get_encoding handles NULL correctly");
1915         ok(bt_ctf_field_type_integer_get_encoding(uint_12_type) ==
1916                 BT_CTF_STRING_ENCODING_UTF8,
1917                 "bt_ctf_field_type_integer_get_encoding returns a correct value");
1918
1919         int_16_type = bt_ctf_field_type_integer_create(16);
1920         assert(int_16_type);
1921         ok(!bt_ctf_field_type_integer_set_signed(int_16_type, 1),
1922                 "Set signedness of 16 bit integer to true");
1923         ok(bt_ctf_field_type_integer_get_signed(int_16_type) == 1,
1924                 "bt_ctf_field_type_integer_get_signed returns a correct value for signed types");
1925         uint_8_type = bt_ctf_field_type_integer_create(8);
1926         sequence_type =
1927                 bt_ctf_field_type_sequence_create(int_16_type, "seq_len");
1928         ok(sequence_type, "Create a sequence of int16_t type");
1929         ok(bt_ctf_field_type_get_type_id(sequence_type) ==
1930                 BT_CTF_TYPE_ID_SEQUENCE,
1931                 "bt_ctf_field_type_get_type_id returns a correct value with a sequence type");
1932
1933         ok(bt_ctf_field_type_sequence_get_length_field_name(NULL) == NULL,
1934                 "bt_ctf_field_type_sequence_get_length_field_name handles NULL correctly");
1935         ret_string = bt_ctf_field_type_sequence_get_length_field_name(
1936                 sequence_type);
1937         ok(!strcmp(ret_string, "seq_len"),
1938                 "bt_ctf_field_type_sequence_get_length_field_name returns the correct value");
1939         ok(bt_ctf_field_type_sequence_get_element_type(NULL) == NULL,
1940                 "bt_ctf_field_type_sequence_get_element_type handles NULL correctly");
1941         returned_type = bt_ctf_field_type_sequence_get_element_type(
1942                 sequence_type);
1943         ok(returned_type == int_16_type,
1944                 "bt_ctf_field_type_sequence_get_element_type returns the correct type");
1945         bt_put(returned_type);
1946
1947         string_type = bt_ctf_field_type_string_create();
1948         ok(string_type, "Create a string type");
1949         ok(bt_ctf_field_type_string_set_encoding(string_type,
1950                 BT_CTF_STRING_ENCODING_NONE),
1951                 "Reject invalid \"None\" string encoding");
1952         ok(bt_ctf_field_type_string_set_encoding(string_type,
1953                 42),
1954                 "Reject invalid string encoding");
1955         ok(bt_ctf_field_type_string_set_encoding(string_type,
1956                 BT_CTF_STRING_ENCODING_ASCII) == 0,
1957                 "Set string encoding to ASCII");
1958
1959         ok(bt_ctf_field_type_string_get_encoding(NULL) ==
1960                 BT_CTF_STRING_ENCODING_UNKNOWN,
1961                 "bt_ctf_field_type_string_get_encoding handles NULL correctly");
1962         ok(bt_ctf_field_type_string_get_encoding(string_type) ==
1963                 BT_CTF_STRING_ENCODING_ASCII,
1964                 "bt_ctf_field_type_string_get_encoding returns the correct value");
1965
1966         structure_seq_type = bt_ctf_field_type_structure_create();
1967         ok(bt_ctf_field_type_get_type_id(structure_seq_type) ==
1968                 BT_CTF_TYPE_ID_STRUCT,
1969                 "bt_ctf_field_type_get_type_id returns a correct value with a structure type");
1970         ok(structure_seq_type, "Create a structure type");
1971         ok(bt_ctf_field_type_structure_add_field(structure_seq_type,
1972                 uint_8_type, "seq_len") == 0,
1973                 "Add a uint8_t type to a structure");
1974         ok(bt_ctf_field_type_structure_add_field(structure_seq_type,
1975                 sequence_type, "a_sequence") == 0,
1976                 "Add a sequence type to a structure");
1977
1978         ok(bt_ctf_field_type_structure_get_field_count(NULL) < 0,
1979                 "bt_ctf_field_type_structure_get_field_count handles NULL correctly");
1980         ok(bt_ctf_field_type_structure_get_field_count(structure_seq_type) == 2,
1981                 "bt_ctf_field_type_structure_get_field_count returns a correct value");
1982
1983         ok(bt_ctf_field_type_structure_get_field(NULL,
1984                 &ret_string, &returned_type, 1) < 0,
1985                 "bt_ctf_field_type_structure_get_field handles a NULL type correctly");
1986         ok(bt_ctf_field_type_structure_get_field(structure_seq_type,
1987                 NULL, &returned_type, 1) == 0,
1988                 "bt_ctf_field_type_structure_get_field handles a NULL name correctly");
1989         bt_put(returned_type);
1990         ok(bt_ctf_field_type_structure_get_field(structure_seq_type,
1991                 &ret_string, NULL, 1) == 0,
1992                 "bt_ctf_field_type_structure_get_field handles a NULL return type correctly");
1993         ok(bt_ctf_field_type_structure_get_field(structure_seq_type,
1994                 &ret_string, &returned_type, 10) < 0,
1995                 "bt_ctf_field_type_structure_get_field handles an invalid index correctly");
1996         ok(bt_ctf_field_type_structure_get_field(structure_seq_type,
1997                 &ret_string, &returned_type, 1) == 0,
1998                 "bt_ctf_field_type_structure_get_field returns a field");
1999         ok(!strcmp(ret_string, "a_sequence"),
2000                 "bt_ctf_field_type_structure_get_field returns a correct field name");
2001         ok(returned_type == sequence_type,
2002                 "bt_ctf_field_type_structure_get_field returns a correct field type");
2003         bt_put(returned_type);
2004
2005         ok(bt_ctf_field_type_structure_get_field_type_by_name(NULL, "a_sequence") == NULL,
2006                 "bt_ctf_field_type_structure_get_field_type_by_name handles a NULL structure correctly");
2007         ok(bt_ctf_field_type_structure_get_field_type_by_name(structure_seq_type, NULL) == NULL,
2008                 "bt_ctf_field_type_structure_get_field_type_by_name handles a NULL field name correctly");
2009         returned_type = bt_ctf_field_type_structure_get_field_type_by_name(
2010                 structure_seq_type, "a_sequence");
2011         ok(returned_type == sequence_type,
2012                 "bt_ctf_field_type_structure_get_field_type_by_name returns the correct field type");
2013         bt_put(returned_type);
2014
2015         composite_structure_type = bt_ctf_field_type_structure_create();
2016         ok(bt_ctf_field_type_structure_add_field(composite_structure_type,
2017                 string_type, "a_string") == 0,
2018                 "Add a string type to a structure");
2019         ok(bt_ctf_field_type_structure_add_field(composite_structure_type,
2020                 structure_seq_type, "inner_structure") == 0,
2021                 "Add a structure type to a structure");
2022
2023         ok(bt_ctf_field_type_structure_get_field_type_by_name(
2024                 NULL, "a_sequence") == NULL,
2025                 "bt_ctf_field_type_structure_get_field_type_by_name handles a NULL field correctly");
2026         ok(bt_ctf_field_type_structure_get_field_type_by_name(
2027                 structure_seq_type, NULL) == NULL,
2028                 "bt_ctf_field_type_structure_get_field_type_by_name handles a NULL field name correctly");
2029         returned_type = bt_ctf_field_type_structure_get_field_type_by_name(
2030                 structure_seq_type, "a_sequence");
2031         ok(returned_type == sequence_type,
2032                 "bt_ctf_field_type_structure_get_field_type_by_name returns a correct type");
2033         bt_put(returned_type);
2034
2035         int_16 = bt_ctf_field_create(int_16_type);
2036         ok(int_16, "Instanciate a signed 16-bit integer");
2037         uint_12 = bt_ctf_field_create(uint_12_type);
2038         ok(uint_12, "Instanciate an unsigned 12-bit integer");
2039         returned_type = bt_ctf_field_get_type(int_16);
2040         ok(returned_type == int_16_type,
2041                 "bt_ctf_field_get_type returns the correct type");
2042
2043         /* Can't modify types after instanciating them */
2044         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
2045                 BT_CTF_INTEGER_BASE_DECIMAL),
2046                 "Check an integer type' base can't be modified after instanciation");
2047         ok(bt_ctf_field_type_integer_set_signed(uint_12_type, 0),
2048                 "Check an integer type's signedness can't be modified after instanciation");
2049
2050         /* Check signed property is checked */
2051         ok(bt_ctf_field_signed_integer_set_value(uint_12, -52),
2052                 "Check bt_ctf_field_signed_integer_set_value is not allowed on an unsigned integer");
2053         ok(bt_ctf_field_unsigned_integer_set_value(int_16, 42),
2054                 "Check bt_ctf_field_unsigned_integer_set_value is not allowed on a signed integer");
2055
2056         /* Check overflows are properly tested for */
2057         ok(bt_ctf_field_signed_integer_set_value(int_16, -32768) == 0,
2058                 "Check -32768 is allowed for a signed 16-bit integer");
2059         ok(bt_ctf_field_signed_integer_set_value(int_16, 32767) == 0,
2060                 "Check 32767 is allowed for a signed 16-bit integer");
2061         ok(bt_ctf_field_signed_integer_set_value(int_16, 32768),
2062                 "Check 32768 is not allowed for a signed 16-bit integer");
2063         ok(bt_ctf_field_signed_integer_set_value(int_16, -32769),
2064                 "Check -32769 is not allowed for a signed 16-bit integer");
2065         ok(bt_ctf_field_signed_integer_set_value(int_16, -42) == 0,
2066                 "Check -42 is allowed for a signed 16-bit integer");
2067
2068         ok(bt_ctf_field_unsigned_integer_set_value(uint_12, 4095) == 0,
2069                 "Check 4095 is allowed for an unsigned 12-bit integer");
2070         ok(bt_ctf_field_unsigned_integer_set_value(uint_12, 4096),
2071                 "Check 4096 is not allowed for a unsigned 12-bit integer");
2072         ok(bt_ctf_field_unsigned_integer_set_value(uint_12, 0) == 0,
2073                 "Check 0 is allowed for an unsigned 12-bit integer");
2074
2075         string = bt_ctf_field_create(string_type);
2076         ok(string, "Instanciate a string field");
2077         ok(bt_ctf_field_string_set_value(string, "A value") == 0,
2078                 "Set a string's value");
2079
2080         enumeration_type = bt_ctf_field_type_enumeration_create(uint_12_type);
2081         ok(enumeration_type,
2082                 "Create an enumeration type with an unsigned 12-bit integer as container");
2083         enumeration = bt_ctf_field_create(enumeration_type);
2084         ok(!enumeration,
2085                 "Check enumeration types are validated before instantiation");
2086
2087         bt_put(string);
2088         bt_put(uint_12);
2089         bt_put(int_16);
2090         bt_put(enumeration);
2091         bt_put(composite_structure_type);
2092         bt_put(structure_seq_type);
2093         bt_put(string_type);
2094         bt_put(sequence_type);
2095         bt_put(uint_8_type);
2096         bt_put(int_16_type);
2097         bt_put(uint_12_type);
2098         bt_put(enumeration_type);
2099         bt_put(returned_type);
2100 }
2101
2102 static
2103 void packet_resize_test(struct bt_ctf_stream_class *stream_class,
2104                 struct bt_ctf_stream *stream, struct bt_ctf_clock *clock)
2105 {
2106         /*
2107          * Append enough events to force the underlying packet to be resized.
2108          * Also tests that a new event can be declared after a stream has been
2109          * instantiated and used/flushed.
2110          */
2111         int ret = 0;
2112         int i;
2113         struct bt_ctf_event_class *event_class = bt_ctf_event_class_create(
2114                 "Spammy_Event");
2115         struct bt_ctf_field_type *integer_type =
2116                 bt_ctf_field_type_integer_create(17);
2117         struct bt_ctf_field_type *string_type =
2118                 bt_ctf_field_type_string_create();
2119         struct bt_ctf_event *event = NULL;
2120         struct bt_ctf_field *ret_field = NULL;
2121         struct bt_ctf_field_type *ret_field_type = NULL;
2122         uint64_t ret_uint64;
2123         int events_appended = 0;
2124         struct bt_ctf_field *packet_context = NULL,
2125                 *packet_context_field = NULL, *stream_event_context = NULL;
2126         struct bt_ctf_field_type *ep_field_1_type = NULL;
2127         struct bt_ctf_field_type *ep_a_string_type = NULL;
2128         struct bt_ctf_field_type *ep_type = NULL;
2129
2130         ret |= bt_ctf_event_class_add_field(event_class, integer_type,
2131                 "field_1");
2132         ret |= bt_ctf_event_class_add_field(event_class, string_type,
2133                 "a_string");
2134         ret |= bt_ctf_stream_class_add_event_class(stream_class, event_class);
2135         ok(ret == 0, "Add a new event class to a stream class after writing an event");
2136         if (ret) {
2137                 goto end;
2138         }
2139
2140         /*
2141          * bt_ctf_stream_class_add_event_class() copies the field types
2142          * of event_class, so we retrieve the new ones to create the
2143          * appropriate fields.
2144          */
2145         ep_type = bt_ctf_event_class_get_payload_type(event_class);
2146         assert(ep_type);
2147         ep_field_1_type = bt_ctf_field_type_structure_get_field_type_by_name(
2148                 ep_type, "field_1");
2149         assert(ep_field_1_type);
2150         ep_a_string_type = bt_ctf_field_type_structure_get_field_type_by_name(
2151                 ep_type, "a_string");
2152         assert(ep_a_string_type);
2153
2154         event = bt_ctf_event_create(event_class);
2155         ret_field = bt_ctf_event_get_payload_by_index(event, 0);
2156         ret_field_type = bt_ctf_field_get_type(ret_field);
2157         ok(bt_ctf_field_type_compare(ret_field_type, integer_type) == 0,
2158                 "bt_ctf_event_get_payload_by_index returns a correct field");
2159         bt_put(ret_field_type);
2160         bt_put(ret_field);
2161
2162         ok(bt_ctf_event_get_payload_by_index(NULL, 0) == NULL,
2163                 "bt_ctf_event_get_payload_by_index handles NULL correctly");
2164         ok(bt_ctf_event_get_payload_by_index(event, 4) == NULL,
2165                 "bt_ctf_event_get_payload_by_index handles an invalid index correctly");
2166         bt_put(event);
2167
2168         for (i = 0; i < PACKET_RESIZE_TEST_LENGTH; i++) {
2169                 event = bt_ctf_event_create(event_class);
2170                 struct bt_ctf_field *integer =
2171                         bt_ctf_field_create(ep_field_1_type);
2172                 struct bt_ctf_field *string =
2173                         bt_ctf_field_create(ep_a_string_type);
2174
2175                 ret |= bt_ctf_clock_set_time(clock, ++current_time);
2176                 ret |= bt_ctf_field_unsigned_integer_set_value(integer, i);
2177                 ret |= bt_ctf_event_set_payload(event, "field_1",
2178                         integer);
2179                 bt_put(integer);
2180                 ret |= bt_ctf_field_string_set_value(string, "This is a test");
2181                 ret |= bt_ctf_event_set_payload(event, "a_string",
2182                         string);
2183                 bt_put(string);
2184
2185                 /* Populate stream event context */
2186                 stream_event_context =
2187                         bt_ctf_event_get_stream_event_context(event);
2188                 integer = bt_ctf_field_structure_get_field(stream_event_context,
2189                         "common_event_context");
2190                 BT_PUT(stream_event_context);
2191                 ret |= bt_ctf_field_unsigned_integer_set_value(integer,
2192                         i % 42);
2193                 bt_put(integer);
2194
2195                 ret |= bt_ctf_stream_append_event(stream, event);
2196                 bt_put(event);
2197
2198                 if (ret) {
2199                         break;
2200                 }
2201         }
2202
2203         events_appended = !!(i == PACKET_RESIZE_TEST_LENGTH);
2204         ok(bt_ctf_stream_get_discarded_events_count(NULL, &ret_uint64) < 0,
2205                 "bt_ctf_stream_get_discarded_events_count handles a NULL stream correctly");
2206         ok(bt_ctf_stream_get_discarded_events_count(stream, NULL) < 0,
2207                 "bt_ctf_stream_get_discarded_events_count handles a NULL return pointer correctly");
2208         ret = bt_ctf_stream_get_discarded_events_count(stream, &ret_uint64);
2209         ok(ret == 0 && ret_uint64 == 0,
2210                 "bt_ctf_stream_get_discarded_events_count returns a correct number of discarded events when none were discarded");
2211         bt_ctf_stream_append_discarded_events(stream, 1000);
2212         ret = bt_ctf_stream_get_discarded_events_count(stream, &ret_uint64);
2213         ok(ret == 0 && ret_uint64 == 1000,
2214                 "bt_ctf_stream_get_discarded_events_count returns a correct number of discarded events when some were discarded");
2215
2216 end:
2217         ok(events_appended, "Append 100 000 events to a stream");
2218
2219         /*
2220          * Populate the custom packet context field with a dummy value
2221          * otherwise flush will fail.
2222          */
2223         packet_context = bt_ctf_stream_get_packet_context(stream);
2224         packet_context_field = bt_ctf_field_structure_get_field(packet_context,
2225                 "custom_packet_context_field");
2226         bt_ctf_field_unsigned_integer_set_value(packet_context_field, 2);
2227
2228         ok(bt_ctf_stream_flush(stream) == 0,
2229                 "Flush a stream that forces a packet resize");
2230         ret = bt_ctf_stream_get_discarded_events_count(stream, &ret_uint64);
2231         ok(ret == 0 && ret_uint64 == 1000,
2232                 "bt_ctf_stream_get_discarded_events_count returns a correct number of discarded events after a flush");
2233         bt_put(integer_type);
2234         bt_put(string_type);
2235         bt_put(packet_context);
2236         bt_put(packet_context_field);
2237         bt_put(stream_event_context);
2238         bt_put(event_class);
2239         bt_put(ep_field_1_type);
2240         bt_put(ep_a_string_type);
2241         bt_put(ep_type);
2242 }
2243
2244 static
2245 void test_empty_stream(struct bt_ctf_writer *writer)
2246 {
2247         int ret = 0;
2248         struct bt_ctf_trace *trace = NULL, *ret_trace = NULL;
2249         struct bt_ctf_stream_class *stream_class = NULL;
2250         struct bt_ctf_stream *stream = NULL;
2251
2252         trace = bt_ctf_writer_get_trace(writer);
2253         if (!trace) {
2254                 diag("Failed to get trace from writer");
2255                 ret = -1;
2256                 goto end;
2257         }
2258
2259         stream_class = bt_ctf_stream_class_create("empty_stream");
2260         if (!stream_class) {
2261                 diag("Failed to create stream class");
2262                 ret = -1;
2263                 goto end;
2264         }
2265
2266         ok(bt_ctf_stream_class_get_trace(NULL) == NULL,
2267                 "bt_ctf_stream_class_get_trace handles NULL correctly");
2268         ok(bt_ctf_stream_class_get_trace(stream_class) == NULL,
2269                 "bt_ctf_stream_class_get_trace returns NULL when stream class is orphaned");
2270
2271         stream = bt_ctf_writer_create_stream(writer, stream_class);
2272         if (!stream) {
2273                 diag("Failed to create writer stream");
2274                 ret = -1;
2275                 goto end;
2276         }
2277
2278         ret_trace = bt_ctf_stream_class_get_trace(stream_class);
2279         ok(ret_trace == trace,
2280                 "bt_ctf_stream_class_get_trace returns the correct trace after a stream has been created");
2281 end:
2282         ok(ret == 0,
2283                 "Created a stream class with default attributes and an empty stream");
2284         bt_put(trace);
2285         bt_put(ret_trace);
2286         bt_put(stream);
2287         bt_put(stream_class);
2288 }
2289
2290 static
2291 void test_custom_event_header_stream(struct bt_ctf_writer *writer,
2292                         struct bt_ctf_clock *clock)
2293 {
2294         int i, ret;
2295         struct bt_ctf_stream_class *stream_class = NULL;
2296         struct bt_ctf_stream *stream = NULL;
2297         struct bt_ctf_field_type *integer_type = NULL,
2298                 *sequence_type = NULL, *event_header_type = NULL;
2299         struct bt_ctf_field *integer = NULL, *sequence = NULL,
2300                 *event_header = NULL, *packet_header = NULL;
2301         struct bt_ctf_event_class *event_class = NULL;
2302         struct bt_ctf_event *event = NULL;
2303
2304         stream_class = bt_ctf_stream_class_create("custom_event_header_stream");
2305         if (!stream_class) {
2306                 fail("Failed to create stream class");
2307                 goto end;
2308         }
2309
2310         ret = bt_ctf_stream_class_set_clock(stream_class, clock);
2311         if (ret) {
2312                 fail("Failed to set stream class clock");
2313                 goto end;
2314         }
2315
2316         /*
2317          * Customize event header to add an "seq_len" integer member
2318          * which will be used as the length of a sequence in an event of this
2319          * stream.
2320          */
2321         event_header_type = bt_ctf_stream_class_get_event_header_type(
2322                 stream_class);
2323         if (!event_header_type) {
2324                 fail("Failed to get event header type");
2325                 goto end;
2326         }
2327
2328         integer_type = bt_ctf_field_type_integer_create(13);
2329         if (!integer_type) {
2330                 fail("Failed to create length integer type");
2331                 goto end;
2332         }
2333
2334         ret = bt_ctf_field_type_structure_add_field(event_header_type,
2335                 integer_type, "seq_len");
2336         if (ret) {
2337                 fail("Failed to add a new field to stream event header");
2338                 goto end;
2339         }
2340
2341         event_class = bt_ctf_event_class_create("sequence_event");
2342         if (!event_class) {
2343                 fail("Failed to create event class");
2344                 goto end;
2345         }
2346
2347         /*
2348          * This event's payload will contain a sequence which references
2349          * stream.event.header.seq_len as its length field.
2350          */
2351         sequence_type = bt_ctf_field_type_sequence_create(integer_type,
2352                 "stream.event.header.seq_len");
2353         if (!sequence_type) {
2354                 fail("Failed to create a sequence");
2355                 goto end;
2356         }
2357
2358         ret = bt_ctf_event_class_add_field(event_class, sequence_type,
2359                 "some_sequence");
2360         if (ret) {
2361                 fail("Failed to add a sequence to an event class");
2362                 goto end;
2363         }
2364
2365         ret = bt_ctf_stream_class_add_event_class(stream_class, event_class);
2366         if (ret) {
2367                 fail("Failed to add event class to stream class");
2368                 goto end;
2369         }
2370
2371         stream = bt_ctf_writer_create_stream(writer, stream_class);
2372         if (!stream) {
2373                 fail("Failed to create stream")
2374                 goto end;
2375         }
2376
2377         /*
2378          * We have defined a custom packet header field. We have to populate it
2379          * explicitly.
2380          */
2381         packet_header = bt_ctf_stream_get_packet_header(stream);
2382         if (!packet_header) {
2383                 fail("Failed to get stream packet header");
2384                 goto end;
2385         }
2386
2387         integer = bt_ctf_field_structure_get_field(packet_header,
2388                 "custom_trace_packet_header_field");
2389         if (!integer) {
2390                 fail("Failed to retrieve custom_trace_packet_header_field");
2391                 goto end;
2392         }
2393
2394         ret = bt_ctf_field_unsigned_integer_set_value(integer, 3487);
2395         if (ret) {
2396                 fail("Failed to set custom_trace_packet_header_field value");
2397                 goto end;
2398         }
2399         bt_put(integer);
2400
2401         event = bt_ctf_event_create(event_class);
2402         if (!event) {
2403                 fail("Failed to create event");
2404                 goto end;
2405         }
2406
2407         event_header = bt_ctf_event_get_header(event);
2408         if (!event_header) {
2409                 fail("Failed to get event header");
2410                 goto end;
2411         }
2412
2413         integer = bt_ctf_field_structure_get_field(event_header,
2414                 "seq_len");
2415         if (!integer) {
2416                 fail("Failed to get seq_len field from event header");
2417                 goto end;
2418         }
2419
2420         ret = bt_ctf_field_unsigned_integer_set_value(integer, 2);
2421         if (ret) {
2422                 fail("Failed to set seq_len value in event header");
2423                 goto end;
2424         }
2425
2426         /* Populate both sequence integer fields */
2427         sequence = bt_ctf_event_get_payload(event, "some_sequence");
2428         if (!sequence) {
2429                 fail("Failed to retrieve sequence from event");
2430                 goto end;
2431         }
2432
2433         ret = bt_ctf_field_sequence_set_length(sequence, integer);
2434         if (ret) {
2435                 fail("Failed to set sequence length");
2436                 goto end;
2437         }
2438         bt_put(integer);
2439
2440         for (i = 0; i < 2; i++) {
2441                 integer = bt_ctf_field_sequence_get_field(sequence, i);
2442                 if (ret) {
2443                         fail("Failed to retrieve sequence element");
2444                         goto end;
2445                 }
2446
2447                 ret = bt_ctf_field_unsigned_integer_set_value(integer, i);
2448                 if (ret) {
2449                         fail("Failed to set sequence element value");
2450                         goto end;
2451                 }
2452
2453                 bt_put(integer);
2454                 integer = NULL;
2455         }
2456
2457         ret = bt_ctf_stream_append_event(stream, event);
2458         if (ret) {
2459                 fail("Failed to append event to stream");
2460                 goto end;
2461         }
2462
2463         ret = bt_ctf_stream_flush(stream);
2464         if (ret) {
2465                 fail("Failed to flush custom_event_header stream");
2466         }
2467 end:
2468         bt_put(stream);
2469         bt_put(stream_class);
2470         bt_put(event_class);
2471         bt_put(event);
2472         bt_put(integer);
2473         bt_put(sequence);
2474         bt_put(event_header);
2475         bt_put(packet_header);
2476         bt_put(sequence_type);
2477         bt_put(integer_type);
2478         bt_put(event_header_type);
2479 }
2480
2481 static
2482 void test_instanciate_event_before_stream(struct bt_ctf_writer *writer,
2483                 struct bt_ctf_clock *clock)
2484 {
2485         int ret = 0;
2486         struct bt_ctf_stream_class *stream_class = NULL;
2487         struct bt_ctf_stream *stream = NULL,
2488                 *ret_stream = NULL;
2489         struct bt_ctf_event_class *event_class = NULL;
2490         struct bt_ctf_event *event = NULL;
2491         struct bt_ctf_field_type *integer_type = NULL;
2492         struct bt_ctf_field *integer = NULL;
2493
2494         stream_class = bt_ctf_stream_class_create("event_before_stream_test");
2495         if (!stream_class) {
2496                 diag("Failed to create stream class");
2497                 ret = -1;
2498                 goto end;
2499         }
2500
2501         ret = bt_ctf_stream_class_set_clock(stream_class, clock);
2502         if (ret) {
2503                 diag("Failed to set stream class clock");
2504                 goto end;
2505         }
2506
2507         event_class = bt_ctf_event_class_create("some_event_class_name");
2508         integer_type = bt_ctf_field_type_integer_create(32);
2509         if (!integer_type) {
2510                 diag("Failed to create integer field type");
2511                 ret = -1;
2512                 goto end;
2513         }
2514
2515         ret = bt_ctf_event_class_add_field(event_class, integer_type,
2516                 "integer_field");
2517         if (ret) {
2518                 diag("Failed to add field to event class");
2519                 goto end;
2520         }
2521
2522         ret = bt_ctf_stream_class_add_event_class(stream_class,
2523                 event_class);
2524         if (ret) {
2525                 diag("Failed to add event class to stream class");
2526         }
2527
2528         event = bt_ctf_event_create(event_class);
2529         if (!event) {
2530                 diag("Failed to create event");
2531                 ret = -1;
2532                 goto end;
2533         }
2534
2535         integer = bt_ctf_event_get_payload_by_index(event, 0);
2536         if (!integer) {
2537                 diag("Failed to get integer field payload from event");
2538                 ret = -1;
2539                 goto end;
2540         }
2541
2542         ret = bt_ctf_field_unsigned_integer_set_value(integer, 1234);
2543         if (ret) {
2544                 diag("Failed to set integer field value");
2545                 goto end;
2546         }
2547
2548         stream = bt_ctf_writer_create_stream(writer, stream_class);
2549         if (!stream) {
2550                 diag("Failed to create writer stream");
2551                 ret = -1;
2552                 goto end;
2553         }
2554
2555         ok(bt_ctf_event_get_stream(NULL) == NULL,
2556                 "bt_ctf_event_get_stream handles NULL correctly");
2557         ok(bt_ctf_event_get_stream(event) == NULL,
2558                 "bt_ctf_event_get_stream returns NULL on event which has not yet been appended to a stream");
2559
2560         ret = bt_ctf_stream_append_event(stream, event);
2561         if (ret) {
2562                 diag("Failed to append event to stream");
2563                 goto end;
2564         }
2565
2566         ret_stream = bt_ctf_event_get_stream(event);
2567         ok(ret_stream == stream,
2568                 "bt_ctf_event_get_stream returns an event's stream after it has been appended");
2569 end:
2570         ok(ret == 0,
2571                 "Create an event before instanciating its associated stream");
2572         bt_put(stream);
2573         bt_put(ret_stream);
2574         bt_put(stream_class);
2575         bt_put(event_class);
2576         bt_put(event);
2577         bt_put(integer_type);
2578         bt_put(integer);
2579 }
2580
2581 static
2582 void append_existing_event_class(struct bt_ctf_stream_class *stream_class)
2583 {
2584         struct bt_ctf_event_class *event_class;
2585
2586         event_class = bt_ctf_event_class_create("Simple Event");
2587         assert(event_class);
2588         ok(bt_ctf_stream_class_add_event_class(stream_class, event_class),
2589                 "two event classes with the same name cannot cohabit within the same stream class");
2590         bt_put(event_class);
2591
2592         event_class = bt_ctf_event_class_create("different name, ok");
2593         assert(event_class);
2594         assert(!bt_ctf_event_class_set_id(event_class, 11));
2595         ok(bt_ctf_stream_class_add_event_class(stream_class, event_class),
2596                 "two event classes with the same ID cannot cohabit within the same stream class");
2597         bt_put(event_class);
2598 }
2599
2600 static
2601 struct bt_ctf_event_class *create_minimal_event_class(void)
2602 {
2603         struct bt_ctf_event_class *ec = NULL;
2604         struct bt_ctf_field_type *int_ft = NULL;
2605         int ret;
2606
2607         int_ft = bt_ctf_field_type_integer_create(23);
2608         assert(int_ft);
2609         ec = bt_ctf_event_class_create("minimal");
2610         assert(ec);
2611         ret = bt_ctf_event_class_add_field(ec, int_ft, "field");
2612         assert(!ret);
2613         BT_PUT(int_ft);
2614
2615         return ec;
2616 }
2617
2618 static
2619 void test_create_writer_vs_non_writer_mode(void)
2620 {
2621         int ret;
2622         char trace_path[] = "/tmp/ctfwriter_XXXXXX";
2623         const char *writer_stream_name = "writer stream instance";
2624         struct bt_ctf_writer *writer = NULL;
2625         struct bt_ctf_trace *writer_trace = NULL;
2626         struct bt_ctf_stream_class *writer_sc = NULL;
2627         struct bt_ctf_stream *writer_stream = NULL;
2628         struct bt_ctf_stream *writer_stream2 = NULL;
2629         struct bt_ctf_stream *packet_stream = NULL;
2630         struct bt_ctf_trace *non_writer_trace = NULL;
2631         struct bt_ctf_stream_class *non_writer_sc = NULL;
2632         struct bt_ctf_stream *non_writer_stream = NULL;
2633         struct bt_ctf_stream *non_writer_stream2 = NULL;
2634         struct bt_ctf_event_class *writer_ec = NULL;
2635         struct bt_ctf_event_class *non_writer_ec = NULL;
2636         struct bt_ctf_event *event = NULL;
2637         struct bt_ctf_event *event2 = NULL;
2638         struct bt_ctf_field_type *empty_struct_ft = NULL;
2639         struct bt_ctf_field *int_field = NULL;
2640         struct bt_ctf_clock *writer_clock = NULL;
2641         struct bt_ctf_clock_class *non_writer_clock_class = NULL;
2642         struct bt_ctf_packet *packet = NULL;
2643         struct bt_ctf_packet *packet2 = NULL;
2644
2645         if (!bt_mkdtemp(trace_path)) {
2646                 perror("# perror");
2647         }
2648
2649         /* Create empty structure field type (event header) */
2650         empty_struct_ft = bt_ctf_field_type_structure_create();
2651         assert(empty_struct_ft);
2652
2653         /* Create writer, writer stream class, stream, and clock */
2654         writer = bt_ctf_writer_create(trace_path);
2655         assert(writer);
2656         writer_trace = bt_ctf_writer_get_trace(writer);
2657         ok(writer_trace, "bt_ctf_writer_get_trace() returns a trace");
2658         writer_sc = bt_ctf_stream_class_create("writer_sc");
2659         assert(writer_sc);
2660         ret = bt_ctf_stream_class_set_event_header_type(writer_sc,
2661                 empty_struct_ft);
2662         assert(!ret);
2663         ret = bt_ctf_trace_add_stream_class(writer_trace, writer_sc);
2664         assert(!ret);
2665         writer_stream = bt_ctf_stream_create(writer_sc, writer_stream_name);
2666         assert(writer_stream);
2667         ok(!strcmp(bt_ctf_stream_get_name(writer_stream), writer_stream_name),
2668                 "bt_ctf_stream_get_name() returns the stream's name");
2669         writer_clock = bt_ctf_clock_create("writer_clock");
2670         assert(writer_clock);
2671         ret = bt_ctf_writer_add_clock(writer, writer_clock);
2672         assert(!ret);
2673
2674         /* Create non-writer trace, stream class, stream, and clock */
2675         non_writer_trace = bt_ctf_trace_create();
2676         assert(non_writer_trace);
2677         non_writer_sc = bt_ctf_stream_class_create("nonwriter_sc");
2678         assert(non_writer_sc);
2679         ret = bt_ctf_stream_class_set_event_header_type(non_writer_sc,
2680                 empty_struct_ft);
2681         assert(!ret);
2682         ret = bt_ctf_trace_add_stream_class(non_writer_trace, non_writer_sc);
2683         assert(!ret);
2684         non_writer_stream = bt_ctf_stream_create(non_writer_sc, NULL);
2685         assert(non_writer_stream);
2686         non_writer_clock_class =
2687                 bt_ctf_clock_class_create("non_writer_clock_class");
2688         assert(non_writer_clock_class);
2689         ret = bt_ctf_trace_add_clock_class(non_writer_trace,
2690                 non_writer_clock_class);
2691         assert(!ret);
2692
2693         /* Create event class and event */
2694         writer_ec = create_minimal_event_class();
2695         assert(writer_ec);
2696         ret = bt_ctf_stream_class_add_event_class(writer_sc, writer_ec);
2697         assert(!ret);
2698         event = bt_ctf_event_create(writer_ec);
2699         assert(event);
2700         int_field = bt_ctf_event_get_payload_by_index(event, 0);
2701         assert(int_field);
2702         bt_ctf_field_unsigned_integer_set_value(int_field, 17);
2703
2704         /*
2705          * Verify non-writer stream: it should be impossible to append
2706          * an event to it.
2707          */
2708         ok(bt_ctf_stream_append_event(non_writer_stream, event),
2709                 "bt_ctf_stream_append_event() fails with a non-writer stream");
2710
2711         /*
2712          * Verify writer stream: it should be possible to append an
2713          * event to it.
2714          */
2715         ok(!bt_ctf_stream_append_event(writer_stream, event),
2716                 "bt_ctf_stream_append_event() succeeds with a writer stream");
2717
2718         /*
2719          * It should be possible to create a packet from a non-writer
2720          * stream, but not from a writer stream.
2721          */
2722         packet = bt_ctf_packet_create(writer_stream);
2723         ok(!packet, "bt_ctf_packet_create() fails with a writer stream");
2724         packet = bt_ctf_packet_create(non_writer_stream);
2725         ok(packet, "bt_ctf_packet_create() succeeds with a non-writer stream");
2726         packet_stream = bt_ctf_packet_get_stream(packet);
2727         ok(packet_stream == non_writer_stream,
2728                 "bt_ctf_packet_get_stream() returns the correct stream");
2729
2730         /*
2731          * It should not be possible to append an event associated to
2732          * a stream to a different stream.
2733          */
2734         writer_stream2 = bt_ctf_stream_create(writer_sc, "zoo");
2735         assert(writer_stream2);
2736         ok(bt_ctf_stream_append_event(writer_stream2, event),
2737                 "bt_ctf_stream_append_event() fails with an event associated to another stream");
2738
2739         /*
2740          * It should not be possible to set the packet of an event
2741          * associated to a given stream to a packet associated with
2742          * a different stream.
2743          */
2744         ok(bt_ctf_event_set_packet(event, packet),
2745                 "bt_ctf_event_set_packet() fails with a packet not sharing the event's stream");
2746
2747         /*
2748          * It should be possible to set the packet of a fresh event, as
2749          * long as the originating stream classes are the same.
2750          */
2751         event2 = bt_ctf_event_create(writer_ec);
2752         assert(event2);
2753         ok(bt_ctf_event_set_packet(event2, packet),
2754                 "bt_ctf_event_set_packet() fails when the event's and the packet's stream class differ");
2755         non_writer_ec = create_minimal_event_class();
2756         assert(non_writer_ec);
2757         ret = bt_ctf_stream_class_add_event_class(non_writer_sc, non_writer_ec);
2758         assert(!ret);
2759         BT_PUT(event2);
2760         event2 = bt_ctf_event_create(non_writer_ec);
2761         assert(event2);
2762         ok(!bt_ctf_event_set_packet(event2, packet),
2763                 "bt_ctf_event_set_packet() succeeds when the event's and the packet's stream class are the same");
2764
2765         /*
2766          * It should be possible to set a packet created from the same
2767          * stream to an event with an existing packet.
2768          */
2769         packet2 = bt_ctf_packet_create(non_writer_stream);
2770         assert(packet2);
2771         ok(!bt_ctf_event_set_packet(event2, packet2),
2772                 "bt_ctf_event_set_packet() succeeds when the event's current packet has the same stream");
2773         BT_PUT(packet2);
2774
2775         /*
2776          * It should not be possible to set a packet created from a
2777          * different stream to an event with an existing packet.
2778          */
2779         non_writer_stream2 = bt_ctf_stream_create(non_writer_sc, "rj45");
2780         assert(non_writer_stream2);
2781         packet2 = bt_ctf_packet_create(non_writer_stream);
2782         assert(packet2);
2783         ok(!bt_ctf_event_set_packet(event2, packet2),
2784                 "bt_ctf_event_set_packet() fails when the event's current packet does not have the same stream");
2785
2786         bt_put(writer);
2787         bt_put(writer_trace);
2788         bt_put(writer_sc);
2789         bt_put(writer_stream);
2790         bt_put(writer_stream2);
2791         bt_put(non_writer_trace);
2792         bt_put(non_writer_sc);
2793         bt_put(non_writer_stream);
2794         bt_put(non_writer_stream2);
2795         bt_put(packet_stream);
2796         bt_put(writer_ec);
2797         bt_put(non_writer_ec);
2798         bt_put(event);
2799         bt_put(event2);
2800         bt_put(int_field);
2801         bt_put(empty_struct_ft);
2802         bt_put(writer_clock);
2803         bt_put(non_writer_clock_class);
2804         bt_put(packet);
2805         bt_put(packet2);
2806         recursive_rmdir(trace_path);
2807 }
2808
2809 static
2810 void test_clock_utils(void)
2811 {
2812         int ret;
2813         struct bt_ctf_clock *clock = NULL;
2814
2815         clock = bt_ctf_clock_create("water");
2816         assert(clock);
2817         ret = bt_ctf_clock_set_offset_s(clock, 1234);
2818         assert(!ret);
2819         ret = bt_ctf_clock_set_offset(clock, 1000);
2820         assert(!ret);
2821         ret = bt_ctf_clock_set_frequency(clock, 1000000000);
2822         assert(!ret);
2823         ret = bt_ctf_clock_set_frequency(clock, 1534);
2824         assert(!ret);
2825
2826         BT_PUT(clock);
2827 }
2828
2829 void test_set_clock_non_writer_stream_class(void)
2830 {
2831         struct bt_ctf_clock *clock;
2832         struct bt_ctf_trace *trace;
2833         struct bt_ctf_stream_class *sc;
2834         int ret;
2835
2836         clock = bt_ctf_clock_create("the_clock");
2837         assert(clock);
2838
2839         trace = bt_ctf_trace_create();
2840         assert(trace);
2841
2842         sc = bt_ctf_stream_class_create(NULL);
2843         assert(sc);
2844
2845         ret = bt_ctf_stream_class_set_clock(sc, clock);
2846         assert(ret == 0);
2847
2848         ret = bt_ctf_trace_add_stream_class(trace, sc);
2849         ok(ret < 0,
2850                 "bt_ctf_trace_add_stream_class() fails with a stream class with a registered clock");
2851
2852         bt_put(clock);
2853         bt_put(trace);
2854         bt_put(sc);
2855 }
2856
2857 int main(int argc, char **argv)
2858 {
2859         char trace_path[] = "/tmp/ctfwriter_XXXXXX";
2860         char metadata_path[sizeof(trace_path) + 9];
2861         const char *clock_name = "test_clock";
2862         const char *clock_description = "This is a test clock";
2863         const char *returned_clock_name;
2864         const char *returned_clock_description;
2865         const uint64_t frequency = 1123456789;
2866         const int64_t offset_s = 1351530929945824323;
2867         const int64_t offset = 1234567;
2868         int64_t get_offset_s,
2869                 get_offset;
2870         const uint64_t precision = 10;
2871         const int is_absolute = 0xFF;
2872         char *metadata_string;
2873         struct bt_ctf_writer *writer;
2874         struct utsname name;
2875         char hostname[BABELTRACE_HOST_NAME_MAX];
2876         struct bt_ctf_clock *clock, *ret_clock;
2877         struct bt_ctf_clock_class *ret_clock_class;
2878         struct bt_ctf_stream_class *stream_class, *ret_stream_class;
2879         struct bt_ctf_stream *stream1;
2880         const char *ret_string;
2881         const unsigned char *ret_uuid;
2882         unsigned char tmp_uuid[16] = { 0 };
2883         struct bt_ctf_field_type *packet_context_type,
2884                 *packet_context_field_type,
2885                 *packet_header_type,
2886                 *packet_header_field_type,
2887                 *integer_type,
2888                 *stream_event_context_type,
2889                 *ret_field_type,
2890                 *event_header_field_type;
2891         struct bt_ctf_field *packet_header, *packet_header_field;
2892         struct bt_ctf_trace *trace;
2893         int ret;
2894         int64_t ret_int64_t;
2895         struct bt_value *obj;
2896
2897         if (argc < 3) {
2898                 printf("Usage: tests-ctf-writer path_to_ctf_parser_test path_to_babeltrace\n");
2899                 return -1;
2900         }
2901
2902         plan_tests(NR_TESTS);
2903
2904         if (!bt_mkdtemp(trace_path)) {
2905                 perror("# perror");
2906         }
2907
2908         strcpy(metadata_path, trace_path);
2909         strcat(metadata_path + sizeof(trace_path) - 1, "/metadata");
2910
2911         writer = bt_ctf_writer_create(trace_path);
2912         ok(writer, "bt_ctf_create succeeds in creating trace with path");
2913
2914         ok(!bt_ctf_writer_get_trace(NULL),
2915                 "bt_ctf_writer_get_trace correctly handles NULL");
2916         trace = bt_ctf_writer_get_trace(writer);
2917         ok(trace,
2918                 "bt_ctf_writer_get_trace returns a bt_ctf_trace object");
2919         ok(bt_ctf_trace_set_byte_order(trace, BT_CTF_BYTE_ORDER_BIG_ENDIAN) == 0,
2920                 "Set a trace's byte order to big endian");
2921         ok(bt_ctf_trace_get_byte_order(trace) == BT_CTF_BYTE_ORDER_BIG_ENDIAN,
2922                 "bt_ctf_trace_get_byte_order returns a correct endianness");
2923
2924         /* Add environment context to the trace */
2925         ret = gethostname(hostname, sizeof(hostname));
2926         if (ret < 0) {
2927                 return ret;
2928         }
2929         ok(bt_ctf_writer_add_environment_field(writer, "host", hostname) == 0,
2930                 "Add host (%s) environment field to writer instance",
2931                 hostname);
2932         ok(bt_ctf_writer_add_environment_field(NULL, "test_field",
2933                 "test_value"),
2934                 "bt_ctf_writer_add_environment_field error with NULL writer");
2935         ok(bt_ctf_writer_add_environment_field(writer, NULL,
2936                 "test_value"),
2937                 "bt_ctf_writer_add_environment_field error with NULL field name");
2938         ok(bt_ctf_writer_add_environment_field(writer, "test_field",
2939                 NULL),
2940                 "bt_ctf_writer_add_environment_field error with NULL field value");
2941
2942         /* Test bt_ctf_trace_set_environment_field with an integer object */
2943         obj = bt_value_integer_create_init(23);
2944         assert(obj);
2945         ok(bt_ctf_trace_set_environment_field(NULL, "test_env_int_obj", obj),
2946                 "bt_ctf_trace_set_environment_field handles a NULL trace correctly");
2947         ok(bt_ctf_trace_set_environment_field(trace, NULL, obj),
2948                 "bt_ctf_trace_set_environment_field handles a NULL name correctly");
2949         ok(bt_ctf_trace_set_environment_field(trace, "test_env_int_obj", NULL),
2950                 "bt_ctf_trace_set_environment_field handles a NULL value correctly");
2951         ok(!bt_ctf_trace_set_environment_field(trace, "test_env_int_obj", obj),
2952                 "bt_ctf_trace_set_environment_field succeeds in adding an integer object");
2953         BT_PUT(obj);
2954
2955         /* Test bt_ctf_trace_set_environment_field with a string object */
2956         obj = bt_value_string_create_init("the value");
2957         assert(obj);
2958         ok(!bt_ctf_trace_set_environment_field(trace, "test_env_str_obj", obj),
2959                 "bt_ctf_trace_set_environment_field succeeds in adding a string object");
2960         BT_PUT(obj);
2961
2962         /* Test bt_ctf_trace_set_environment_field_integer */
2963         ok(bt_ctf_trace_set_environment_field_integer(NULL, "test_env_int",
2964                 -194875),
2965                 "bt_ctf_trace_set_environment_field_integer handles a NULL trace correctly");
2966         ok(bt_ctf_trace_set_environment_field_integer(trace, NULL, -194875),
2967                 "bt_ctf_trace_set_environment_field_integer handles a NULL name correctly");
2968         ok(!bt_ctf_trace_set_environment_field_integer(trace, "test_env_int",
2969                 -164973),
2970                 "bt_ctf_trace_set_environment_field_integer succeeds");
2971
2972         /* Test bt_ctf_trace_set_environment_field_string */
2973         ok(bt_ctf_trace_set_environment_field_string(NULL, "test_env_str",
2974                 "yeah"),
2975                 "bt_ctf_trace_set_environment_field_string handles a NULL trace correctly");
2976         ok(bt_ctf_trace_set_environment_field_string(trace, NULL, "yeah"),
2977                 "bt_ctf_trace_set_environment_field_string handles a NULL name correctly");
2978         ok(bt_ctf_trace_set_environment_field_string(trace, "test_env_str",
2979                 NULL),
2980                 "bt_ctf_trace_set_environment_field_string handles a NULL value correctly");
2981         ok(!bt_ctf_trace_set_environment_field_string(trace, "test_env_str",
2982                 "oh yeah"),
2983                 "bt_ctf_trace_set_environment_field_string succeeds");
2984
2985         /* Test bt_ctf_trace_get_environment_field_count */
2986         ok(bt_ctf_trace_get_environment_field_count(NULL) < 0,
2987                 "bt_ctf_trace_get_environment_field_count handles a NULL trace correctly");
2988         ok(bt_ctf_trace_get_environment_field_count(trace) == 5,
2989                 "bt_ctf_trace_get_environment_field_count returns a correct number of environment fields");
2990
2991         /* Test bt_ctf_trace_get_environment_field_name */
2992         ok(bt_ctf_trace_get_environment_field_name(NULL, 0) == NULL,
2993                 "bt_ctf_trace_get_environment_field_name handles a NULL trace correctly");
2994         ok(bt_ctf_trace_get_environment_field_name(trace, -1) == NULL,
2995                 "bt_ctf_trace_get_environment_field_name handles an invalid index correctly (negative)");
2996         ok(bt_ctf_trace_get_environment_field_name(trace, 5) == NULL,
2997                 "bt_ctf_trace_get_environment_field_name handles an invalid index correctly (too large)");
2998         ret_string = bt_ctf_trace_get_environment_field_name(trace, 0);
2999         ok(ret_string && !strcmp(ret_string, "host"),
3000                 "bt_ctf_trace_get_environment_field_name returns a correct field name");
3001         ret_string = bt_ctf_trace_get_environment_field_name(trace, 1);
3002         ok(ret_string && !strcmp(ret_string, "test_env_int_obj"),
3003                 "bt_ctf_trace_get_environment_field_name returns a correct field name");
3004         ret_string = bt_ctf_trace_get_environment_field_name(trace, 2);
3005         ok(ret_string && !strcmp(ret_string, "test_env_str_obj"),
3006                 "bt_ctf_trace_get_environment_field_name returns a correct field name");
3007         ret_string = bt_ctf_trace_get_environment_field_name(trace, 3);
3008         ok(ret_string && !strcmp(ret_string, "test_env_int"),
3009                 "bt_ctf_trace_get_environment_field_name returns a correct field name");
3010         ret_string = bt_ctf_trace_get_environment_field_name(trace, 4);
3011         ok(ret_string && !strcmp(ret_string, "test_env_str"),
3012                 "bt_ctf_trace_get_environment_field_name returns a correct field name");
3013
3014         /* Test bt_ctf_trace_get_environment_field_value */
3015         ok(bt_ctf_trace_get_environment_field_value(NULL, 0) == NULL,
3016                 "bt_ctf_trace_get_environment_field_value handles a NULL trace correctly");
3017         ok(bt_ctf_trace_get_environment_field_value(trace, -1) == NULL,
3018                 "bt_ctf_trace_get_environment_field_value handles an invalid index correctly (negative)");
3019         ok(bt_ctf_trace_get_environment_field_value(trace, 5) == NULL,
3020                 "bt_ctf_trace_get_environment_field_value handles an invalid index correctly (too large)");
3021         obj = bt_ctf_trace_get_environment_field_value(trace, 1);
3022         ret = bt_value_integer_get(obj, &ret_int64_t);
3023         ok(!ret && ret_int64_t == 23,
3024                 "bt_ctf_trace_get_environment_field_value succeeds in getting an integer value");
3025         BT_PUT(obj);
3026         obj = bt_ctf_trace_get_environment_field_value(trace, 2);
3027         ret = bt_value_string_get(obj, &ret_string);
3028         ok(!ret && ret_string && !strcmp(ret_string, "the value"),
3029                 "bt_ctf_trace_get_environment_field_value succeeds in getting a string value");
3030         BT_PUT(obj);
3031
3032         /* Test bt_ctf_trace_get_environment_field_value_by_name */
3033         ok(!bt_ctf_trace_get_environment_field_value_by_name(NULL,
3034                 "test_env_str"),
3035                 "bt_ctf_trace_get_environment_field_value_by_name handles a NULL trace correctly");
3036         ok(!bt_ctf_trace_get_environment_field_value_by_name(trace, NULL),
3037                 "bt_ctf_trace_get_environment_field_value_by_name handles a NULL name correctly");
3038         ok(!bt_ctf_trace_get_environment_field_value_by_name(trace, "oh oh"),
3039                 "bt_ctf_trace_get_environment_field_value_by_name returns NULL or an unknown field name");
3040         obj = bt_ctf_trace_get_environment_field_value_by_name(trace,
3041                 "test_env_str");
3042         ret = bt_value_string_get(obj, &ret_string);
3043         ok(!ret && ret_string && !strcmp(ret_string, "oh yeah"),
3044                 "bt_ctf_trace_get_environment_field_value_by_name succeeds in getting an existing field");
3045         BT_PUT(obj);
3046
3047         /* Test environment field replacement */
3048         ok(!bt_ctf_trace_set_environment_field_integer(trace, "test_env_int",
3049                 654321),
3050                 "bt_ctf_trace_set_environment_field_integer succeeds with an existing name");
3051         ok(bt_ctf_trace_get_environment_field_count(trace) == 5,
3052                 "bt_ctf_trace_set_environment_field_integer with an existing key does not increase the environment size");
3053         obj = bt_ctf_trace_get_environment_field_value(trace, 3);
3054         ret = bt_value_integer_get(obj, &ret_int64_t);
3055         ok(!ret && ret_int64_t == 654321,
3056                 "bt_ctf_trace_get_environment_field_value successfully replaces an existing field");
3057         BT_PUT(obj);
3058
3059         /* On Solaris, uname() can return any positive value on success */
3060         if (uname(&name) < 0) {
3061                 perror("uname");
3062                 return -1;
3063         }
3064
3065         ok(bt_ctf_writer_add_environment_field(writer, "sysname", name.sysname)
3066                 == 0, "Add sysname (%s) environment field to writer instance",
3067                 name.sysname);
3068         ok(bt_ctf_writer_add_environment_field(writer, "nodename",
3069                 name.nodename) == 0,
3070                 "Add nodename (%s) environment field to writer instance",
3071                 name.nodename);
3072         ok(bt_ctf_writer_add_environment_field(writer, "release", name.release)
3073                 == 0, "Add release (%s) environment field to writer instance",
3074                 name.release);
3075         ok(bt_ctf_writer_add_environment_field(writer, "version", name.version)
3076                 == 0, "Add version (%s) environment field to writer instance",
3077                 name.version);
3078         ok(bt_ctf_writer_add_environment_field(writer, "machine", name.machine)
3079                 == 0, "Add machine (%s) environment field to writer istance",
3080                 name.machine);
3081
3082         /* Define a clock and add it to the trace */
3083         ok(bt_ctf_clock_create("signed") == NULL,
3084                 "Illegal clock name rejected");
3085         clock = bt_ctf_clock_create(clock_name);
3086         ok(clock, "Clock created sucessfully");
3087         returned_clock_name = bt_ctf_clock_get_name(clock);
3088         ok(returned_clock_name, "bt_ctf_clock_get_name returns a clock name");
3089         ok(returned_clock_name ? !strcmp(returned_clock_name, clock_name) : 0,
3090                 "Returned clock name is valid");
3091
3092         returned_clock_description = bt_ctf_clock_get_description(clock);
3093         ok(!returned_clock_description, "bt_ctf_clock_get_description returns NULL on an unset description");
3094         ok(bt_ctf_clock_set_description(clock, clock_description) == 0,
3095                 "Clock description set successfully");
3096
3097         returned_clock_description = bt_ctf_clock_get_description(clock);
3098         ok(returned_clock_description,
3099                 "bt_ctf_clock_get_description returns a description.");
3100         ok(returned_clock_description ?
3101                 !strcmp(returned_clock_description, clock_description) : 0,
3102                 "Returned clock description is valid");
3103
3104         ok(bt_ctf_clock_get_frequency(clock) == DEFAULT_CLOCK_FREQ,
3105                 "bt_ctf_clock_get_frequency returns the correct default frequency");
3106         ok(bt_ctf_clock_set_frequency(clock, frequency) == 0,
3107                 "Set clock frequency");
3108         ok(bt_ctf_clock_get_frequency(clock) == frequency,
3109                 "bt_ctf_clock_get_frequency returns the correct frequency once it is set");
3110
3111         ok(bt_ctf_clock_get_offset_s(clock, &get_offset_s) == 0,
3112                 "bt_ctf_clock_get_offset_s succeeds");
3113         ok(get_offset_s == DEFAULT_CLOCK_OFFSET_S,
3114                 "bt_ctf_clock_get_offset_s returns the correct default offset (in seconds)");
3115         ok(bt_ctf_clock_set_offset_s(clock, offset_s) == 0,
3116                 "Set clock offset (seconds)");
3117         ok(bt_ctf_clock_get_offset_s(clock, &get_offset_s) == 0,
3118                 "bt_ctf_clock_get_offset_s succeeds");
3119         ok(get_offset_s == offset_s,
3120                 "bt_ctf_clock_get_offset_s returns the correct default offset (in seconds) once it is set");
3121
3122         ok(bt_ctf_clock_get_offset(clock, &get_offset) == 0,
3123                 "bt_ctf_clock_get_offset succeeds");
3124         ok(get_offset == DEFAULT_CLOCK_OFFSET,
3125                 "bt_ctf_clock_get_offset returns the correct default offset (in ticks)");
3126         ok(bt_ctf_clock_set_offset(clock, offset) == 0, "Set clock offset");
3127         ok(bt_ctf_clock_get_offset(clock, &get_offset) == 0,
3128                 "bt_ctf_clock_get_offset succeeds");
3129         ok(get_offset == offset,
3130                 "bt_ctf_clock_get_offset returns the correct default offset (in ticks) once it is set");
3131
3132         ok(bt_ctf_clock_get_precision(clock) == DEFAULT_CLOCK_PRECISION,
3133                 "bt_ctf_clock_get_precision returns the correct default precision");
3134         ok(bt_ctf_clock_set_precision(clock, precision) == 0,
3135                 "Set clock precision");
3136         ok(bt_ctf_clock_get_precision(clock) == precision,
3137                 "bt_ctf_clock_get_precision returns the correct precision once it is set");
3138
3139         ok(bt_ctf_clock_get_is_absolute(clock) == DEFAULT_CLOCK_IS_ABSOLUTE,
3140                 "bt_ctf_clock_get_precision returns the correct default is_absolute attribute");
3141         ok(bt_ctf_clock_set_is_absolute(clock, is_absolute) == 0,
3142                 "Set clock absolute property");
3143         ok(bt_ctf_clock_get_is_absolute(clock) == !!is_absolute,
3144                 "bt_ctf_clock_get_precision returns the correct is_absolute attribute once it is set");
3145
3146         ok(bt_ctf_clock_set_time(clock, current_time) == 0,
3147                 "Set clock time");
3148
3149         ok(!bt_ctf_clock_get_name(NULL),
3150                 "bt_ctf_clock_get_name correctly handles NULL");
3151         ok(!bt_ctf_clock_get_description(NULL),
3152                 "bt_ctf_clock_get_description correctly handles NULL");
3153         ok(bt_ctf_clock_get_frequency(NULL) == -1ULL,
3154                 "bt_ctf_clock_get_frequency correctly handles NULL");
3155         ok(bt_ctf_clock_get_precision(NULL) == -1ULL,
3156                 "bt_ctf_clock_get_precision correctly handles NULL");
3157         ok(bt_ctf_clock_get_offset_s(NULL, &get_offset_s) < 0,
3158                 "bt_ctf_clock_get_offset_s correctly handles NULL clock");
3159         ok(bt_ctf_clock_get_offset_s(clock, NULL) < 0,
3160                 "bt_ctf_clock_get_offset_s correctly handles NULL output");
3161         ok(bt_ctf_clock_get_offset(NULL, &get_offset) < 0,
3162                 "bt_ctf_clock_get_offset correctly handles NULL clock");
3163         ok(bt_ctf_clock_get_offset(clock, NULL) < 0,
3164                 "bt_ctf_clock_get_offset correctly handles NULL output");
3165         ok(bt_ctf_clock_get_is_absolute(NULL) < 0,
3166                 "bt_ctf_clock_get_is_absolute correctly handles NULL");
3167
3168         ok(bt_ctf_clock_set_description(NULL, NULL) < 0,
3169                 "bt_ctf_clock_set_description correctly handles NULL clock");
3170         ok(bt_ctf_clock_set_frequency(NULL, frequency) < 0,
3171                 "bt_ctf_clock_set_frequency correctly handles NULL clock");
3172         ok(bt_ctf_clock_set_precision(NULL, precision) < 0,
3173                 "bt_ctf_clock_get_precision correctly handles NULL clock");
3174         ok(bt_ctf_clock_set_offset_s(NULL, offset_s) < 0,
3175                 "bt_ctf_clock_set_offset_s correctly handles NULL clock");
3176         ok(bt_ctf_clock_set_offset(NULL, offset) < 0,
3177                 "bt_ctf_clock_set_offset correctly handles NULL clock");
3178         ok(bt_ctf_clock_set_is_absolute(NULL, is_absolute) < 0,
3179                 "bt_ctf_clock_set_is_absolute correctly handles NULL clock");
3180         ok(bt_ctf_clock_set_time(NULL, current_time) < 0,
3181                 "bt_ctf_clock_set_time correctly handles NULL clock");
3182         ok(bt_ctf_clock_get_uuid(NULL) == NULL,
3183                 "bt_ctf_clock_get_uuid correctly handles NULL clock");
3184         ret_uuid = bt_ctf_clock_get_uuid(clock);
3185         ok(ret_uuid,
3186                 "bt_ctf_clock_get_uuid returns a UUID");
3187         if (ret_uuid) {
3188                 memcpy(tmp_uuid, ret_uuid, sizeof(tmp_uuid));
3189                 /* Slightly modify UUID */
3190                 tmp_uuid[sizeof(tmp_uuid) - 1]++;
3191         }
3192
3193         ok(bt_ctf_clock_set_uuid(NULL, tmp_uuid) < 0,
3194                 "bt_ctf_clock_set_uuid correctly handles a NULL clock");
3195         ok(bt_ctf_clock_set_uuid(clock, NULL) < 0,
3196                 "bt_ctf_clock_set_uuid correctly handles a NULL UUID");
3197         ok(bt_ctf_clock_set_uuid(clock, tmp_uuid) == 0,
3198                 "bt_ctf_clock_set_uuid sets a new uuid successfully");
3199         ret_uuid = bt_ctf_clock_get_uuid(clock);
3200         ok(ret_uuid,
3201                 "bt_ctf_clock_get_uuid returns a UUID after setting a new one");
3202         ok(uuid_match(ret_uuid, tmp_uuid),
3203                 "bt_ctf_clock_get_uuid returns the correct UUID after setting a new one");
3204
3205         /* Define a stream class */
3206         stream_class = bt_ctf_stream_class_create("test_stream");
3207
3208         ok(bt_ctf_stream_class_get_name(NULL) == NULL,
3209                 "bt_ctf_stream_class_get_name handles NULL correctly");
3210         ret_string = bt_ctf_stream_class_get_name(stream_class);
3211         ok(ret_string && !strcmp(ret_string, "test_stream"),
3212                 "bt_ctf_stream_class_get_name returns a correct stream class name");
3213
3214         ok(bt_ctf_stream_class_get_clock(stream_class) == NULL,
3215                 "bt_ctf_stream_class_get_clock returns NULL when a clock was not set");
3216         ok(bt_ctf_stream_class_get_clock(NULL) == NULL,
3217                 "bt_ctf_stream_class_get_clock handles NULL correctly");
3218
3219         ok(stream_class, "Create stream class");
3220         ok(bt_ctf_stream_class_set_clock(stream_class, clock) == 0,
3221                 "Set a stream class' clock");
3222         ret_clock = bt_ctf_stream_class_get_clock(stream_class);
3223         ok(ret_clock == clock,
3224                 "bt_ctf_stream_class_get_clock returns a correct clock");
3225         bt_put(ret_clock);
3226
3227         /* Test the event fields and event types APIs */
3228         type_field_tests();
3229
3230         /* Test fields copying */
3231         field_copy_tests();
3232
3233         ok(bt_ctf_stream_class_get_id(stream_class) < 0,
3234                 "bt_ctf_stream_class_get_id returns an error when no id is set");
3235         ok(bt_ctf_stream_class_get_id(NULL) < 0,
3236                 "bt_ctf_stream_class_get_id handles NULL correctly");
3237         ok(bt_ctf_stream_class_set_id(NULL, 123) < 0,
3238                 "bt_ctf_stream_class_set_id handles NULL correctly");
3239         ok(bt_ctf_stream_class_set_id(stream_class, 123) == 0,
3240                 "Set an stream class' id");
3241         ok(bt_ctf_stream_class_get_id(stream_class) == 123,
3242                 "bt_ctf_stream_class_get_id returns the correct value");
3243
3244         /* Validate default event header fields */
3245         ok(bt_ctf_stream_class_get_event_header_type(NULL) == NULL,
3246                 "bt_ctf_stream_class_get_event_header_type handles NULL correctly");
3247         ret_field_type = bt_ctf_stream_class_get_event_header_type(
3248                 stream_class);
3249         ok(ret_field_type,
3250                 "bt_ctf_stream_class_get_event_header_type returns an event header type");
3251         ok(bt_ctf_field_type_get_type_id(ret_field_type) == BT_CTF_TYPE_ID_STRUCT,
3252                 "Default event header type is a structure");
3253         event_header_field_type =
3254                 bt_ctf_field_type_structure_get_field_type_by_name(
3255                 ret_field_type, "id");
3256         ok(event_header_field_type,
3257                 "Default event header type contains an \"id\" field");
3258         ok(bt_ctf_field_type_get_type_id(
3259                 event_header_field_type) == BT_CTF_TYPE_ID_INTEGER,
3260                 "Default event header \"id\" field is an integer");
3261         bt_put(event_header_field_type);
3262         event_header_field_type =
3263                 bt_ctf_field_type_structure_get_field_type_by_name(
3264                 ret_field_type, "timestamp");
3265         ok(event_header_field_type,
3266                 "Default event header type contains a \"timestamp\" field");
3267         ok(bt_ctf_field_type_get_type_id(
3268                 event_header_field_type) == BT_CTF_TYPE_ID_INTEGER,
3269                 "Default event header \"timestamp\" field is an integer");
3270         bt_put(event_header_field_type);
3271         bt_put(ret_field_type);
3272
3273         /* Add a custom trace packet header field */
3274         ok(bt_ctf_trace_get_packet_header_type(NULL) == NULL,
3275                 "bt_ctf_trace_get_packet_header_type handles NULL correctly");
3276         packet_header_type = bt_ctf_trace_get_packet_header_type(trace);
3277         ok(packet_header_type,
3278                 "bt_ctf_trace_get_packet_header_type returns a packet header");
3279         ok(bt_ctf_field_type_get_type_id(packet_header_type) == BT_CTF_TYPE_ID_STRUCT,
3280                 "bt_ctf_trace_get_packet_header_type returns a packet header of type struct");
3281         ret_field_type = bt_ctf_field_type_structure_get_field_type_by_name(
3282                 packet_header_type, "magic");
3283         ok(ret_field_type, "Default packet header type contains a \"magic\" field");
3284         bt_put(ret_field_type);
3285         ret_field_type = bt_ctf_field_type_structure_get_field_type_by_name(
3286                 packet_header_type, "uuid");
3287         ok(ret_field_type, "Default packet header type contains a \"uuid\" field");
3288         bt_put(ret_field_type);
3289         ret_field_type = bt_ctf_field_type_structure_get_field_type_by_name(
3290                 packet_header_type, "stream_id");
3291         ok(ret_field_type, "Default packet header type contains a \"stream_id\" field");
3292         bt_put(ret_field_type);
3293
3294         packet_header_field_type = bt_ctf_field_type_integer_create(22);
3295         ok(!bt_ctf_field_type_structure_add_field(packet_header_type,
3296                 packet_header_field_type, "custom_trace_packet_header_field"),
3297                 "Added a custom trace packet header field successfully");
3298
3299         ok(bt_ctf_trace_set_packet_header_type(NULL, packet_header_type) < 0,
3300                 "bt_ctf_trace_set_packet_header_type handles a NULL trace correctly");
3301         ok(!bt_ctf_trace_set_packet_header_type(trace, packet_header_type),
3302                 "Set a trace packet_header_type successfully");
3303
3304         ok(bt_ctf_stream_class_get_packet_context_type(NULL) == NULL,
3305                 "bt_ctf_stream_class_get_packet_context_type handles NULL correctly");
3306
3307         /* Add a custom field to the stream class' packet context */
3308         packet_context_type = bt_ctf_stream_class_get_packet_context_type(stream_class);
3309         ok(packet_context_type,
3310                 "bt_ctf_stream_class_get_packet_context_type returns a packet context type.");
3311         ok(bt_ctf_field_type_get_type_id(packet_context_type) == BT_CTF_TYPE_ID_STRUCT,
3312                 "Packet context is a structure");
3313
3314         ok(bt_ctf_stream_class_set_packet_context_type(NULL, packet_context_type),
3315                 "bt_ctf_stream_class_set_packet_context_type handles a NULL stream class correctly");
3316
3317         integer_type = bt_ctf_field_type_integer_create(32);
3318         ok(bt_ctf_stream_class_set_packet_context_type(stream_class,
3319                 integer_type) < 0,
3320                 "bt_ctf_stream_class_set_packet_context_type rejects a packet context that is not a structure");
3321         /* Create a "uint5_t" equivalent custom packet context field */
3322         packet_context_field_type = bt_ctf_field_type_integer_create(5);
3323
3324         ret = bt_ctf_field_type_structure_add_field(packet_context_type,
3325                 packet_context_field_type, "custom_packet_context_field");
3326         ok(ret == 0, "Packet context field added successfully");
3327
3328         /* Define a stream event context containing a my_integer field. */
3329         ok(bt_ctf_stream_class_get_event_context_type(NULL) == NULL,
3330                 "bt_ctf_stream_class_get_event_context_type handles NULL correctly");
3331         ok(bt_ctf_stream_class_get_event_context_type(
3332                 stream_class) == NULL,
3333                 "bt_ctf_stream_class_get_event_context_type returns NULL when no stream event context type was set.");
3334         stream_event_context_type = bt_ctf_field_type_structure_create();
3335         bt_ctf_field_type_structure_add_field(stream_event_context_type,
3336                 integer_type, "common_event_context");
3337
3338         ok(bt_ctf_stream_class_set_event_context_type(NULL,
3339                 stream_event_context_type) < 0,
3340                 "bt_ctf_stream_class_set_event_context_type handles a NULL stream_class correctly");
3341         ok(bt_ctf_stream_class_set_event_context_type(stream_class,
3342                 integer_type) < 0,
3343                 "bt_ctf_stream_class_set_event_context_type validates that the event context os a structure");
3344
3345         ok(bt_ctf_stream_class_set_event_context_type(
3346                 stream_class, stream_event_context_type) == 0,
3347                 "Set a new stream event context type");
3348         ret_field_type = bt_ctf_stream_class_get_event_context_type(
3349                 stream_class);
3350         ok(ret_field_type == stream_event_context_type,
3351                 "bt_ctf_stream_class_get_event_context_type returns the correct field type.");
3352         bt_put(ret_field_type);
3353
3354         /* Instantiate a stream and append events */
3355         ret = bt_ctf_writer_add_clock(writer, clock);
3356         assert(ret == 0);
3357         stream1 = bt_ctf_writer_create_stream(writer, stream_class);
3358         ok(stream1, "Instanciate a stream class from writer");
3359
3360         /*
3361          * Creating a stream through a writer adds the given stream
3362          * class to the writer's trace, thus registering the stream
3363          * class's clock to the trace.
3364          */
3365         ok(bt_ctf_trace_get_clock_class_count(NULL) < 0,
3366                 "bt_ctf_trace_get_clock_class_count correctly handles NULL");
3367         ok(bt_ctf_trace_get_clock_class_count(trace) == 1,
3368                 "bt_ctf_trace_get_clock_class_count returns the correct number of clocks");
3369         ok(!bt_ctf_trace_get_clock_class(NULL, 0),
3370                 "bt_ctf_trace_get_clock_class correctly handles NULL");
3371         ok(!bt_ctf_trace_get_clock_class(trace, -1),
3372                 "bt_ctf_trace_get_clock_class correctly handles negative indexes");
3373         ok(!bt_ctf_trace_get_clock_class(trace, 1),
3374                 "bt_ctf_trace_get_clock_class correctly handles out of bound accesses");
3375         ret_clock_class = bt_ctf_trace_get_clock_class(trace, 0);
3376         ok(strcmp(bt_ctf_clock_class_get_name(ret_clock_class),
3377                 bt_ctf_clock_get_name(clock)) == 0,
3378                 "bt_ctf_trace_get_clock_class returns the right clock instance");
3379         bt_put(ret_clock_class);
3380         ok(!bt_ctf_trace_get_clock_class_by_name(trace, NULL),
3381                 "bt_ctf_trace_get_clock_class_by_name correctly handles NULL (trace)");
3382         ok(!bt_ctf_trace_get_clock_class_by_name(NULL, clock_name),
3383                 "bt_ctf_trace_get_clock_by_name correctly handles NULL (clock name)");
3384         ok(!bt_ctf_trace_get_clock_class_by_name(NULL, NULL),
3385                 "bt_ctf_trace_get_clock_by_name correctly handles NULL (both)");
3386         ret_clock_class = bt_ctf_trace_get_clock_class_by_name(trace, clock_name);
3387         ok(strcmp(bt_ctf_clock_class_get_name(ret_clock_class),
3388                 bt_ctf_clock_get_name(clock)) == 0,
3389                 "bt_ctf_trace_get_clock_class returns the right clock instance");
3390         bt_put(ret_clock_class);
3391         ok(!bt_ctf_trace_get_clock_class_by_name(trace, "random"),
3392                 "bt_ctf_trace_get_clock_by_name fails when the requested clock doesn't exist");
3393
3394         ok(bt_ctf_stream_get_class(NULL) == NULL,
3395                 "bt_ctf_stream_get_class correctly handles NULL");
3396         ret_stream_class = bt_ctf_stream_get_class(stream1);
3397         ok(ret_stream_class,
3398                 "bt_ctf_stream_get_class returns a stream class");
3399         ok(ret_stream_class == stream_class,
3400                 "Returned stream class is of the correct type");
3401
3402         /*
3403          * Packet header, packet context, event header, and stream
3404          * event context types were copied for the resolving
3405          * process
3406          */
3407         BT_PUT(packet_header_type);
3408         BT_PUT(packet_context_type);
3409         BT_PUT(stream_event_context_type);
3410         packet_header_type = bt_ctf_trace_get_packet_header_type(trace);
3411         assert(packet_header_type);
3412         packet_context_type =
3413                 bt_ctf_stream_class_get_packet_context_type(stream_class);
3414         assert(packet_context_type);
3415         stream_event_context_type =
3416                 bt_ctf_stream_class_get_event_context_type(stream_class);
3417         assert(stream_event_context_type);
3418
3419         /*
3420          * Try to modify the packet context type after a stream has been
3421          * created.
3422          */
3423         ret = bt_ctf_field_type_structure_add_field(packet_header_type,
3424                 packet_header_field_type, "should_fail");
3425         ok(ret < 0,
3426                 "Trace packet header type can't be modified once a stream has been instanciated");
3427
3428         /*
3429          * Try to modify the packet context type after a stream has been
3430          * created.
3431          */
3432         ret = bt_ctf_field_type_structure_add_field(packet_context_type,
3433                 packet_context_field_type, "should_fail");
3434         ok(ret < 0,
3435                 "Packet context type can't be modified once a stream has been instanciated");
3436
3437         /*
3438          * Try to modify the stream event context type after a stream has been
3439          * created.
3440          */
3441         ret = bt_ctf_field_type_structure_add_field(stream_event_context_type,
3442                 integer_type, "should_fail");
3443         ok(ret < 0,
3444                 "Stream event context type can't be modified once a stream has been instanciated");
3445
3446         /* Should fail after instanciating a stream (frozen) */
3447         ok(bt_ctf_stream_class_set_clock(stream_class, clock),
3448                 "Changes to a stream class that was already instantiated fail");
3449
3450         /* Populate the custom packet header field only once for all tests */
3451         ok(bt_ctf_stream_get_packet_header(NULL) == NULL,
3452                 "bt_ctf_stream_get_packet_header handles NULL correctly");
3453         packet_header = bt_ctf_stream_get_packet_header(stream1);
3454         ok(packet_header,
3455                 "bt_ctf_stream_get_packet_header returns a packet header");
3456         ret_field_type = bt_ctf_field_get_type(packet_header);
3457         ok(ret_field_type == packet_header_type,
3458                 "Stream returns a packet header of the appropriate type");
3459         bt_put(ret_field_type);
3460         packet_header_field = bt_ctf_field_structure_get_field(packet_header,
3461                 "custom_trace_packet_header_field");
3462         ok(packet_header_field,
3463                 "Packet header structure contains a custom field with the appropriate name");
3464         ret_field_type = bt_ctf_field_get_type(packet_header_field);
3465         ok(bt_ctf_field_type_compare(ret_field_type, packet_header_field_type) == 0,
3466                 "Custom packet header field is of the expected type");
3467         ok(!bt_ctf_field_unsigned_integer_set_value(packet_header_field,
3468                 54321), "Set custom packet header value successfully");
3469         ok(bt_ctf_stream_set_packet_header(stream1, NULL) < 0,
3470                 "bt_ctf_stream_set_packet_header handles a NULL packet header correctly");
3471         ok(bt_ctf_stream_set_packet_header(NULL, packet_header) < 0,
3472                 "bt_ctf_stream_set_packet_header handles a NULL stream correctly");
3473         ok(bt_ctf_stream_set_packet_header(stream1, packet_header_field) < 0,
3474                 "bt_ctf_stream_set_packet_header rejects a packet header of the wrong type");
3475         ok(!bt_ctf_stream_set_packet_header(stream1, packet_header),
3476                 "Successfully set a stream's packet header");
3477
3478         ok(bt_ctf_writer_add_environment_field(writer, "new_field", "test") == 0,
3479                 "Add environment field to writer after stream creation");
3480
3481         test_clock_utils();
3482
3483         test_create_writer_vs_non_writer_mode();
3484
3485         test_set_clock_non_writer_stream_class();
3486
3487         test_instanciate_event_before_stream(writer, clock);
3488
3489         append_simple_event(stream_class, stream1, clock);
3490
3491         packet_resize_test(stream_class, stream1, clock);
3492
3493         append_complex_event(stream_class, stream1, clock);
3494
3495         append_existing_event_class(stream_class);
3496
3497         test_empty_stream(writer);
3498
3499         test_custom_event_header_stream(writer, clock);
3500
3501         metadata_string = bt_ctf_writer_get_metadata_string(writer);
3502         ok(metadata_string, "Get metadata string");
3503
3504         bt_ctf_writer_flush_metadata(writer);
3505         validate_metadata(argv[1], metadata_path);
3506         validate_trace(argv[2], trace_path);
3507
3508         bt_put(clock);
3509         bt_put(ret_stream_class);
3510         bt_put(writer);
3511         bt_put(stream1);
3512         bt_put(packet_context_type);
3513         bt_put(packet_context_field_type);
3514         bt_put(integer_type);
3515         bt_put(stream_event_context_type);
3516         bt_put(ret_field_type);
3517         bt_put(packet_header_type);
3518         bt_put(packet_header_field_type);
3519         bt_put(packet_header);
3520         bt_put(packet_header_field);
3521         bt_put(trace);
3522         free(metadata_string);
3523         bt_put(stream_class);
3524
3525         recursive_rmdir(trace_path);
3526         return 0;
3527 }