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 #define _GNU_SOURCE
  23 #include <babeltrace/ctf-writer/writer.h>
  24 #include <babeltrace/ctf-writer/clock.h>
  25 #include <babeltrace/ctf-writer/stream.h>
  26 #include <babeltrace/ctf-writer/event.h>
  27 #include <babeltrace/ctf-writer/event-types.h>
  28 #include <babeltrace/ctf-writer/event-fields.h>
  29 #include <babeltrace/ctf-ir/stream-class.h>
  30 #include <babeltrace/ctf/events.h>
  31 #include <babeltrace/objects.h>
  32 #include <unistd.h>
  33 #include <stdlib.h>
  34 #include <stdio.h>
  35 #include <sys/utsname.h>
  36 #include <babeltrace/compat/limits.h>
  37 #include <string.h>
  38 #include <assert.h>
  39 #include <sys/wait.h>
  40 #include <fcntl.h>
  41 #include <dirent.h>
  42 #include "tap/tap.h"
  43 #include <math.h>
  44 #include <float.h>
  45
  46 #define METADATA_LINE_SIZE 512
  47 #define SEQUENCE_TEST_LENGTH 10
  48 #define ARRAY_TEST_LENGTH 5
  49 #define PACKET_RESIZE_TEST_LENGTH 100000
  50
  51 #define DEFAULT_CLOCK_FREQ 1000000000
  52 #define DEFAULT_CLOCK_PRECISION 1
  53 #define DEFAULT_CLOCK_OFFSET 0
  54 #define DEFAULT_CLOCK_OFFSET_S 0
  55 #define DEFAULT_CLOCK_IS_ABSOLUTE 0
  56 #define DEFAULT_CLOCK_TIME 0
  57
  58 static uint64_t current_time = 42;
  59
  60 /* Return 1 if uuids match, zero if different. */
  61 int uuid_match(const unsigned char *uuid_a, const unsigned char *uuid_b)
  62 {
  63         int ret = 0;
  64         int i;
  65
  66         if (!uuid_a || !uuid_b) {
  67                 goto end;
  68         }
  69
  70         for (i = 0; i < 16; i++) {
  71                 if (uuid_a[i] != uuid_b[i]) {
  72                         goto end;
  73                 }
  74         }
  75
  76         ret = 1;
  77 end:
  78         return ret;
  79 }
  80
  81 void validate_metadata(char *parser_path, char *metadata_path)
  82 {
  83         int ret = 0;
  84         char parser_output_path[] = "/tmp/parser_output_XXXXXX";
  85         int parser_output_fd = -1, metadata_fd = -1;
  86
  87         if (!metadata_path) {
  88                 ret = -1;
  89                 goto result;
  90         }
  91
  92         parser_output_fd = mkstemp(parser_output_path);
  93         metadata_fd = open(metadata_path, O_RDONLY);
  94
  95         unlink(parser_output_path);
  96
  97         if (parser_output_fd == -1 || metadata_fd == -1) {
  98                 diag("Failed create temporary files for metadata parsing.");
  99                 ret = -1;
 100                 goto result;
 101         }
 102
 103         pid_t pid = fork();
 104         if (pid) {
 105                 int status = 0;
 106                 waitpid(pid, &status, 0);
 107                 ret = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
 108         } else {
 109                 /* ctf-parser-test expects a metadata string on stdin. */
 110                 ret = dup2(metadata_fd, STDIN_FILENO);
 111                 if (ret < 0) {
 112                         perror("# dup2 metadata_fd to STDIN");
 113                         goto result;
 114                 }
 115
 116                 ret = dup2(parser_output_fd, STDOUT_FILENO);
 117                 if (ret < 0) {
 118                         perror("# dup2 parser_output_fd to STDOUT");
 119                         goto result;
 120                 }
 121
 122                 ret = dup2(parser_output_fd, STDERR_FILENO);
 123                 if (ret < 0) {
 124                         perror("# dup2 parser_output_fd to STDERR");
 125                         goto result;
 126                 }
 127
 128                 execl(parser_path, "ctf-parser-test", NULL);
 129                 perror("# Could not launch the ctf metadata parser process");
 130                 exit(-1);
 131         }
 132 result:
 133         ok(ret == 0, "Metadata string is valid");
 134
 135         if (ret && metadata_fd >= 0 && parser_output_fd >= 0) {
 136                 char *line;
 137                 size_t len = METADATA_LINE_SIZE;
 138                 FILE *metadata_fp = NULL, *parser_output_fp = NULL;
 139
 140                 metadata_fp = fdopen(metadata_fd, "r");
 141                 if (!metadata_fp) {
 142                         perror("fdopen on metadata_fd");
 143                         goto close_fp;
 144                 }
 145                 metadata_fd = -1;
 146
 147                 parser_output_fp = fdopen(parser_output_fd, "r");
 148                 if (!parser_output_fp) {
 149                         perror("fdopen on parser_output_fd");
 150                         goto close_fp;
 151                 }
 152                 parser_output_fd = -1;
 153
 154                 line = malloc(len);
 155                 if (!line) {
 156                         diag("malloc failure");
 157                 }
 158
 159                 rewind(metadata_fp);
 160
 161                 /* Output the metadata and parser output as diagnostic */
 162                 while (getline(&line, &len, metadata_fp) > 0) {
 163                         fprintf(stderr, "# %s", line);
 164                 }
 165
 166                 rewind(parser_output_fp);
 167                 while (getline(&line, &len, parser_output_fp) > 0) {
 168                         fprintf(stderr, "# %s", line);
 169                 }
 170
 171                 free(line);
 172 close_fp:
 173                 if (metadata_fp) {
 174                         if (fclose(metadata_fp)) {
 175                                 diag("fclose failure");
 176                         }
 177                 }
 178                 if (parser_output_fp) {
 179                         if (fclose(parser_output_fp)) {
 180                                 diag("fclose failure");
 181                         }
 182                 }
 183         }
 184
 185         if (parser_output_fd >= 0) {
 186                 if (close(parser_output_fd)) {
 187                         diag("close error");
 188                 }
 189         }
 190         if (metadata_fd >= 0) {
 191                 if (close(metadata_fd)) {
 192                         diag("close error");
 193                 }
 194         }
 195 }
 196
 197 void validate_trace(char *parser_path, char *trace_path)
 198 {
 199         int ret = 0;
 200         char babeltrace_output_path[] = "/tmp/babeltrace_output_XXXXXX";
 201         int babeltrace_output_fd = -1;
 202
 203         if (!trace_path) {
 204                 ret = -1;
 205                 goto result;
 206         }
 207
 208         babeltrace_output_fd = mkstemp(babeltrace_output_path);
 209         unlink(babeltrace_output_path);
 210
 211         if (babeltrace_output_fd == -1) {
 212                 diag("Failed to create a temporary file for trace parsing.");
 213                 ret = -1;
 214                 goto result;
 215         }
 216
 217         pid_t pid = fork();
 218         if (pid) {
 219                 int status = 0;
 220                 waitpid(pid, &status, 0);
 221                 ret = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
 222         } else {
 223                 ret = dup2(babeltrace_output_fd, STDOUT_FILENO);
 224                 if (ret < 0) {
 225                         perror("# dup2 babeltrace_output_fd to STDOUT");
 226                         goto result;
 227                 }
 228
 229                 ret = dup2(babeltrace_output_fd, STDERR_FILENO);
 230                 if (ret < 0) {
 231                         perror("# dup2 babeltrace_output_fd to STDERR");
 232                         goto result;
 233                 }
 234
 235                 execl(parser_path, "babeltrace", trace_path, NULL);
 236                 perror("# Could not launch the babeltrace process");
 237                 exit(-1);
 238         }
 239 result:
 240         ok(ret == 0, "Babeltrace could read the resulting trace");
 241
 242         if (ret && babeltrace_output_fd >= 0) {
 243                 char *line;
 244                 size_t len = METADATA_LINE_SIZE;
 245                 FILE *babeltrace_output_fp = NULL;
 246
 247                 babeltrace_output_fp = fdopen(babeltrace_output_fd, "r");
 248                 if (!babeltrace_output_fp) {
 249                         perror("fdopen on babeltrace_output_fd");
 250                         goto close_fp;
 251                 }
 252                 babeltrace_output_fd = -1;
 253
 254                 line = malloc(len);
 255                 if (!line) {
 256                         diag("malloc error");
 257                 }
 258                 rewind(babeltrace_output_fp);
 259                 while (getline(&line, &len, babeltrace_output_fp) > 0) {
 260                         diag("%s", line);
 261                 }
 262
 263                 free(line);
 264 close_fp:
 265                 if (babeltrace_output_fp) {
 266                         if (fclose(babeltrace_output_fp)) {
 267                                 diag("fclose error");
 268                         }
 269                 }
 270         }
 271
 272         if (babeltrace_output_fd >= 0) {
 273                 if (close(babeltrace_output_fd)) {
 274                         diag("close error");
 275                 }
 276         }
 277 }
 278
 279 void append_simple_event(struct bt_ctf_stream_class *stream_class,
 280                 struct bt_ctf_stream *stream, struct bt_ctf_clock *clock)
 281 {
 282         /* Create and add a simple event class */
 283         struct bt_ctf_event_class *simple_event_class =
 284                 bt_ctf_event_class_create("Simple Event");
 285         struct bt_ctf_field_type *uint_12_type =
 286                 bt_ctf_field_type_integer_create(12);
 287         struct bt_ctf_field_type *int_64_type =
 288                 bt_ctf_field_type_integer_create(64);
 289         struct bt_ctf_field_type *float_type =
 290                 bt_ctf_field_type_floating_point_create();
 291         struct bt_ctf_field_type *enum_type;
 292         struct bt_ctf_field_type *enum_type_unsigned =
 293                 bt_ctf_field_type_enumeration_create(uint_12_type);
 294         struct bt_ctf_field_type *event_context_type =
 295                 bt_ctf_field_type_structure_create();
 296         struct bt_ctf_field_type *returned_type;
 297         struct bt_ctf_event *simple_event;
 298         struct bt_ctf_field *integer_field;
 299         struct bt_ctf_field *float_field;
 300         struct bt_ctf_field *enum_field;
 301         struct bt_ctf_field *enum_field_unsigned;
 302         struct bt_ctf_field *enum_container_field;
 303         const char *mapping_name_test = "truie";
 304         const double double_test_value = 3.1415;
 305         struct bt_ctf_field *enum_container_field_unsigned;
 306         const char *mapping_name_negative_test = "negative_value";
 307         const char *ret_char;
 308         double ret_double;
 309         int64_t ret_range_start_int64_t, ret_range_end_int64_t;
 310         uint64_t ret_range_start_uint64_t, ret_range_end_uint64_t;
 311         struct bt_ctf_clock *ret_clock;
 312         struct bt_ctf_event_class *ret_event_class;
 313         struct bt_ctf_field *packet_context;
 314         struct bt_ctf_field *packet_context_field;
 315         struct bt_ctf_field *stream_event_context;
 316         struct bt_ctf_field *stream_event_context_field;
 317         struct bt_ctf_field *event_context;
 318         struct bt_ctf_field *event_context_field;
 319
 320         ok(uint_12_type, "Create an unsigned integer type");
 321
 322         bt_ctf_field_type_integer_set_signed(int_64_type, 1);
 323         ok(int_64_type, "Create a signed integer type");
 324         enum_type = bt_ctf_field_type_enumeration_create(int_64_type);
 325
 326         returned_type = bt_ctf_field_type_enumeration_get_container_type(enum_type);
 327         ok(returned_type == int_64_type, "bt_ctf_field_type_enumeration_get_container_type returns the right type");
 328         ok(!bt_ctf_field_type_enumeration_get_container_type(NULL), "bt_ctf_field_type_enumeration_get_container_type handles NULL correctly");
 329         ok(!bt_ctf_field_type_enumeration_create(enum_type),
 330                 "bt_ctf_field_enumeration_type_create rejects non-integer container field types");
 331         bt_ctf_field_type_put(returned_type);
 332
 333         bt_ctf_field_type_set_alignment(float_type, 32);
 334         ok(bt_ctf_field_type_get_alignment(NULL) < 0,
 335                 "bt_ctf_field_type_get_alignment handles NULL correctly");
 336         ok(bt_ctf_field_type_get_alignment(float_type) == 32,
 337                 "bt_ctf_field_type_get_alignment returns a correct value");
 338
 339         ok(bt_ctf_field_type_floating_point_set_exponent_digits(float_type, 11) == 0,
 340                 "Set a floating point type's exponent digit count");
 341         ok(bt_ctf_field_type_floating_point_set_mantissa_digits(float_type, 53) == 0,
 342                 "Set a floating point type's mantissa digit count");
 343
 344         ok(bt_ctf_field_type_floating_point_get_exponent_digits(NULL) < 0,
 345                 "bt_ctf_field_type_floating_point_get_exponent_digits handles NULL properly");
 346         ok(bt_ctf_field_type_floating_point_get_mantissa_digits(NULL) < 0,
 347                 "bt_ctf_field_type_floating_point_get_mantissa_digits handles NULL properly");
 348         ok(bt_ctf_field_type_floating_point_get_exponent_digits(float_type) == 11,
 349                 "bt_ctf_field_type_floating_point_get_exponent_digits returns the correct value");
 350         ok(bt_ctf_field_type_floating_point_get_mantissa_digits(float_type) == 53,
 351                 "bt_ctf_field_type_floating_point_get_mantissa_digits returns the correct value");
 352
 353         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 354                 mapping_name_negative_test, -12345, 0) == 0,
 355                 "bt_ctf_field_type_enumeration_add_mapping accepts negative enumeration mappings");
 356         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 357                 "escaping; \"test\"", 1, 1) == 0,
 358                 "bt_ctf_field_type_enumeration_add_mapping accepts enumeration mapping strings containing quotes");
 359         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 360                 "\tanother \'escaping\'\n test\"", 2, 4) == 0,
 361                 "bt_ctf_field_type_enumeration_add_mapping accepts enumeration mapping strings containing special characters");
 362         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 363                 "event clock int float", 5, 22) == 0,
 364                 "Accept enumeration mapping strings containing reserved keywords");
 365         bt_ctf_field_type_enumeration_add_mapping(enum_type, mapping_name_test,
 366                 42, 42);
 367         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type, mapping_name_test,
 368                 43, 51), "bt_ctf_field_type_enumeration_add_mapping rejects duplicate mapping names");
 369         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type, "something",
 370                 -500, -400), "bt_ctf_field_type_enumeration_add_mapping rejects overlapping enum entries");
 371         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type, mapping_name_test,
 372                 -54, -55), "bt_ctf_field_type_enumeration_add_mapping rejects mapping where end < start");
 373         bt_ctf_field_type_enumeration_add_mapping(enum_type, "another entry", -42000, -13000);
 374
 375         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_value(NULL, -42) < 0,
 376                 "bt_ctf_field_type_enumeration_get_mapping_index_by_value handles a NULL field type correctly");
 377         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_value(enum_type, 1000000) < 0,
 378                 "bt_ctf_field_type_enumeration_get_mapping_index_by_value handles invalid values correctly");
 379         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_value(enum_type, -55) == 1,
 380                 "bt_ctf_field_type_enumeration_get_mapping_index_by_value returns the correct index");
 381
 382         ok(bt_ctf_event_class_add_field(simple_event_class, enum_type,
 383                 "enum_field") == 0, "Add signed enumeration field to event");
 384
 385         ok(bt_ctf_field_type_enumeration_get_mapping(NULL, 0, &ret_char,
 386                 &ret_range_start_int64_t, &ret_range_end_int64_t) < 0,
 387                 "bt_ctf_field_type_enumeration_get_mapping handles a NULL enumeration correctly");
 388         ok(bt_ctf_field_type_enumeration_get_mapping(enum_type, 0, NULL,
 389                 &ret_range_start_int64_t, &ret_range_end_int64_t) < 0,
 390                 "bt_ctf_field_type_enumeration_get_mapping handles a NULL string correctly");
 391         ok(bt_ctf_field_type_enumeration_get_mapping(enum_type, 0, &ret_char,
 392                 NULL, &ret_range_end_int64_t) < 0,
 393                 "bt_ctf_field_type_enumeration_get_mapping handles a NULL start correctly");
 394         ok(bt_ctf_field_type_enumeration_get_mapping(enum_type, 0, &ret_char,
 395                 &ret_range_start_int64_t, NULL) < 0,
 396                 "bt_ctf_field_type_enumeration_get_mapping handles a NULL end correctly");
 397         ok(bt_ctf_field_type_enumeration_get_mapping(enum_type, 5, &ret_char,
 398                 &ret_range_start_int64_t, &ret_range_end_int64_t) == 0,
 399                 "bt_ctf_field_type_enumeration_get_mapping returns a value");
 400         ok(!strcmp(ret_char, mapping_name_test),
 401                 "bt_ctf_field_type_enumeration_get_mapping returns a correct mapping name");
 402         ok(ret_range_start_int64_t == 42,
 403                 "bt_ctf_field_type_enumeration_get_mapping returns a correct mapping start");
 404         ok(ret_range_end_int64_t == 42,
 405                 "bt_ctf_field_type_enumeration_get_mapping returns a correct mapping end");
 406
 407         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned,
 408                 "escaping; \"test\"", 0, 0) == 0,
 409                 "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts enumeration mapping strings containing quotes");
 410         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned,
 411                 "\tanother \'escaping\'\n test\"", 1, 4) == 0,
 412                 "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts enumeration mapping strings containing special characters");
 413         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned,
 414                 "event clock int float", 5, 22) == 0,
 415                 "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts enumeration mapping strings containing reserved keywords");
 416         bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, mapping_name_test,
 417                 42, 42);
 418         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, mapping_name_test,
 419                 43, 51), "bt_ctf_field_type_enumeration_add_mapping_unsigned rejects duplicate mapping names");
 420         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, "something",
 421                 7, 8), "bt_ctf_field_type_enumeration_add_mapping_unsigned rejects overlapping enum entries");
 422         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, mapping_name_test,
 423                 55, 54), "bt_ctf_field_type_enumeration_add_mapping_unsigned rejects mapping where end < start");
 424         ok(bt_ctf_event_class_add_field(simple_event_class, enum_type_unsigned,
 425                 "enum_field_unsigned") == 0, "Add unsigned enumeration field to event");
 426
 427         ok(bt_ctf_field_type_enumeration_get_mapping_count(NULL) < 0,
 428                 "bt_ctf_field_type_enumeration_get_mapping_count handles NULL correctly");
 429         ok(bt_ctf_field_type_enumeration_get_mapping_count(enum_type_unsigned) == 4,
 430                 "bt_ctf_field_type_enumeration_get_mapping_count returns the correct value");
 431
 432         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(NULL, 0, &ret_char,
 433                 &ret_range_start_uint64_t, &ret_range_end_uint64_t) < 0,
 434                 "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL enumeration correctly");
 435         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 0, NULL,
 436                 &ret_range_start_uint64_t, &ret_range_end_uint64_t) < 0,
 437                 "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL string correctly");
 438         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 0, &ret_char,
 439                 NULL, &ret_range_end_uint64_t) < 0,
 440                 "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL start correctly");
 441         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 0, &ret_char,
 442                 &ret_range_start_uint64_t, NULL) < 0,
 443                 "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL end correctly");
 444         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 3, &ret_char,
 445                 &ret_range_start_uint64_t, &ret_range_end_uint64_t) == 0,
 446                 "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a value");
 447         ok(!strcmp(ret_char, mapping_name_test),
 448                 "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a correct mapping name");
 449         ok(ret_range_start_uint64_t == 42,
 450                 "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a correct mapping start");
 451         ok(ret_range_end_uint64_t == 42,
 452                 "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a correct mapping end");
 453
 454         bt_ctf_event_class_add_field(simple_event_class, uint_12_type,
 455                 "integer_field");
 456         bt_ctf_event_class_add_field(simple_event_class, float_type,
 457                 "float_field");
 458
 459         assert(!bt_ctf_event_class_set_id(simple_event_class, 13));
 460
 461         /* Set an event context type which will contain a single integer*/
 462         ok(!bt_ctf_field_type_structure_add_field(event_context_type, uint_12_type,
 463                 "event_specific_context"),
 464                 "Add event specific context field");
 465         ok(bt_ctf_event_class_get_context_type(NULL) == NULL,
 466                 "bt_ctf_event_class_get_context_type handles NULL correctly");
 467         ok(bt_ctf_event_class_get_context_type(simple_event_class) == NULL,
 468                 "bt_ctf_event_class_get_context_type returns NULL when no event context type is set");
 469
 470         ok(bt_ctf_event_class_set_context_type(simple_event_class, NULL) < 0,
 471                 "bt_ctf_event_class_set_context_type handles a NULL context type correctly");
 472         ok(bt_ctf_event_class_set_context_type(NULL, event_context_type) < 0,
 473                 "bt_ctf_event_class_set_context_type handles a NULL event class correctly");
 474         ok(!bt_ctf_event_class_set_context_type(simple_event_class, event_context_type),
 475                 "Set an event class' context type successfully");
 476         returned_type = bt_ctf_event_class_get_context_type(simple_event_class);
 477         ok(returned_type == event_context_type,
 478                 "bt_ctf_event_class_get_context_type returns the appropriate type");
 479         bt_ctf_field_type_put(returned_type);
 480
 481         bt_ctf_stream_class_add_event_class(stream_class, simple_event_class);
 482
 483         ok(bt_ctf_stream_class_get_event_class_count(NULL) < 0,
 484                 "bt_ctf_stream_class_get_event_class_count handles NULL correctly");
 485         ok(bt_ctf_stream_class_get_event_class_count(stream_class) == 1,
 486                 "bt_ctf_stream_class_get_event_class_count returns a correct number of event classes");
 487         ok(bt_ctf_stream_class_get_event_class(NULL, 0) == NULL,
 488                 "bt_ctf_stream_class_get_event_class handles NULL correctly");
 489         ok(bt_ctf_stream_class_get_event_class(stream_class, 8724) == NULL,
 490                 "bt_ctf_stream_class_get_event_class handles invalid indexes correctly");
 491         ret_event_class = bt_ctf_stream_class_get_event_class(stream_class, 0);
 492         ok(ret_event_class == simple_event_class,
 493                 "bt_ctf_stream_class_get_event_class returns the correct event class");
 494         bt_ctf_event_class_put(ret_event_class);
 495         ok(!bt_ctf_stream_class_get_event_class_by_id(NULL, 0),
 496                 "bt_ctf_stream_class_get_event_class_by_id handles NULL correctly");
 497         ok(!bt_ctf_stream_class_get_event_class_by_id(stream_class, 2),
 498                 "bt_ctf_stream_class_get_event_class_by_id returns NULL when the requested ID doesn't exist");
 499         ret_event_class =
 500                 bt_ctf_stream_class_get_event_class_by_id(stream_class, 13);
 501         ok(ret_event_class == simple_event_class,
 502                 "bt_ctf_stream_class_get_event_class_by_id returns a correct event class");
 503         bt_ctf_event_class_put(ret_event_class);
 504
 505         ok(bt_ctf_stream_class_get_event_class_by_name(NULL, "some event name") == NULL,
 506                 "bt_ctf_stream_class_get_event_class_by_name handles a NULL stream class correctly");
 507         ok(bt_ctf_stream_class_get_event_class_by_name(stream_class, NULL) == NULL,
 508                 "bt_ctf_stream_class_get_event_class_by_name handles a NULL event class name correctly");
 509         ok(bt_ctf_stream_class_get_event_class_by_name(stream_class, "some event name") == NULL,
 510                 "bt_ctf_stream_class_get_event_class_by_name handles non-existing event class names correctly");
 511         ret_event_class = bt_ctf_stream_class_get_event_class_by_name(stream_class, "Simple Event");
 512         ok(ret_event_class == simple_event_class,
 513                 "bt_ctf_stream_class_get_event_class_by_name returns a correct event class");
 514         bt_ctf_event_class_put(ret_event_class);
 515
 516         simple_event = bt_ctf_event_create(simple_event_class);
 517         ok(simple_event,
 518                 "Instantiate an event containing a single integer field");
 519
 520         ok(bt_ctf_event_get_clock(NULL) == NULL,
 521                 "bt_ctf_event_get_clock handles NULL correctly");
 522         ret_clock = bt_ctf_event_get_clock(simple_event);
 523         ok(ret_clock == clock,
 524                 "bt_ctf_event_get_clock returns a correct clock");
 525         bt_ctf_clock_put(clock);
 526
 527         integer_field = bt_ctf_field_create(uint_12_type);
 528         bt_ctf_field_unsigned_integer_set_value(integer_field, 42);
 529         ok(bt_ctf_event_set_payload(simple_event, "integer_field",
 530                 integer_field) == 0, "Use bt_ctf_event_set_payload to set a manually allocated field");
 531
 532         float_field = bt_ctf_event_get_payload(simple_event, "float_field");
 533         ok(bt_ctf_field_floating_point_get_value(float_field, &ret_double),
 534                 "bt_ctf_field_floating_point_get_value fails on an unset float field");
 535         bt_ctf_field_floating_point_set_value(float_field, double_test_value);
 536         ok(bt_ctf_field_floating_point_get_value(NULL, &ret_double),
 537                 "bt_ctf_field_floating_point_get_value properly handles a NULL field");
 538         ok(bt_ctf_field_floating_point_get_value(float_field, NULL),
 539                 "bt_ctf_field_floating_point_get_value properly handles a NULL return value pointer");
 540         ok(!bt_ctf_field_floating_point_get_value(float_field, &ret_double),
 541                 "bt_ctf_field_floating_point_get_value returns a double value");
 542         ok(fabs(ret_double - double_test_value) <= DBL_EPSILON,
 543                 "bt_ctf_field_floating_point_get_value returns a correct value");
 544
 545         enum_field = bt_ctf_field_create(enum_type);
 546         ret_char = bt_ctf_field_enumeration_get_mapping_name(NULL);
 547         ok(!ret_char, "bt_ctf_field_enumeration_get_mapping_name handles NULL correctly");
 548         ret_char = bt_ctf_field_enumeration_get_mapping_name(enum_field);
 549         ok(!ret_char, "bt_ctf_field_enumeration_get_mapping_name returns NULL if the enumeration's container field is unset");
 550         enum_container_field = bt_ctf_field_enumeration_get_container(
 551                 enum_field);
 552         ok(bt_ctf_field_signed_integer_set_value(
 553                 enum_container_field, -42) == 0,
 554                 "Set signed enumeration container value");
 555         ret_char = bt_ctf_field_enumeration_get_mapping_name(enum_field);
 556         ok(!strcmp(ret_char, mapping_name_negative_test),
 557                 "bt_ctf_field_enumeration_get_mapping_name returns the correct mapping name with an signed container");
 558         bt_ctf_event_set_payload(simple_event, "enum_field", enum_field);
 559
 560         enum_field_unsigned = bt_ctf_field_create(enum_type_unsigned);
 561         enum_container_field_unsigned = bt_ctf_field_enumeration_get_container(
 562                 enum_field_unsigned);
 563         ok(bt_ctf_field_unsigned_integer_set_value(
 564                 enum_container_field_unsigned, 42) == 0,
 565                 "Set unsigned enumeration container value");
 566         bt_ctf_event_set_payload(simple_event, "enum_field_unsigned",
 567                 enum_field_unsigned);
 568         ret_char = bt_ctf_field_enumeration_get_mapping_name(enum_field_unsigned);
 569         ok(ret_char && !strcmp(ret_char, mapping_name_test),
 570                 "bt_ctf_field_enumeration_get_mapping_name returns the correct mapping name with an unsigned container");
 571
 572         ok(bt_ctf_clock_set_time(clock, current_time) == 0, "Set clock time");
 573
 574         /* Populate stream event context */
 575         stream_event_context = bt_ctf_stream_get_event_context(stream);
 576         stream_event_context_field = bt_ctf_field_structure_get_field(
 577                 stream_event_context, "common_event_context");
 578         bt_ctf_field_unsigned_integer_set_value(stream_event_context_field, 42);
 579
 580         /* Populate the event's context */
 581         ok(bt_ctf_event_get_event_context(NULL) == NULL,
 582                 "bt_ctf_event_get_event_context handles NULL correctly");
 583         event_context = bt_ctf_event_get_event_context(simple_event);
 584         ok(event_context,
 585                 "bt_ctf_event_get_event_context returns a field");
 586         returned_type = bt_ctf_field_get_type(event_context);
 587         ok(returned_type == event_context_type,
 588                 "bt_ctf_event_get_event_context returns a field of the appropriate type");
 589         event_context_field = bt_ctf_field_structure_get_field(event_context,
 590                 "event_specific_context");
 591         ok(!bt_ctf_field_unsigned_integer_set_value(event_context_field, 1234),
 592                 "Successfully set an event context's value");
 593         ok(bt_ctf_event_set_event_context(NULL, event_context) < 0,
 594                 "bt_ctf_event_set_event_context handles a NULL event correctly");
 595         ok(bt_ctf_event_set_event_context(simple_event, NULL) < 0,
 596                 "bt_ctf_event_set_event_context handles a NULL event context correctly");
 597         ok(bt_ctf_event_set_event_context(simple_event, event_context_field) < 0,
 598                 "bt_ctf_event_set_event_context rejects a context of the wrong type");
 599         ok(!bt_ctf_event_set_event_context(simple_event, event_context),
 600                 "Set an event context successfully");
 601
 602         ok(bt_ctf_stream_append_event(stream, simple_event) == 0,
 603                 "Append simple event to trace stream");
 604
 605         ok(bt_ctf_stream_get_packet_context(NULL) == NULL,
 606                 "bt_ctf_stream_get_packet_context handles NULL correctly");
 607         packet_context = bt_ctf_stream_get_packet_context(stream);
 608         ok(packet_context,
 609                 "bt_ctf_stream_get_packet_context returns a packet context");
 610
 611         packet_context_field = bt_ctf_field_structure_get_field(packet_context,
 612                 "packet_size");
 613         ok(packet_context_field,
 614                 "Packet context contains the default packet_size field.");
 615         bt_ctf_field_put(packet_context_field);
 616         packet_context_field = bt_ctf_field_structure_get_field(packet_context,
 617                 "custom_packet_context_field");
 618         ok(bt_ctf_field_unsigned_integer_set_value(packet_context_field, 8) == 0,
 619                 "Custom packet context field value successfully set.");
 620
 621         ok(bt_ctf_stream_set_packet_context(NULL, packet_context_field) < 0,
 622                 "bt_ctf_stream_set_packet_context handles a NULL stream correctly");
 623         ok(bt_ctf_stream_set_packet_context(stream, NULL) < 0,
 624                 "bt_ctf_stream_set_packet_context handles a NULL packet context correctly");
 625         ok(bt_ctf_stream_set_packet_context(stream, packet_context) == 0,
 626                 "Successfully set a stream's packet context");
 627
 628         ok(bt_ctf_stream_flush(stream) == 0,
 629                 "Flush trace stream with one event");
 630
 631         bt_ctf_event_class_put(simple_event_class);
 632         bt_ctf_event_put(simple_event);
 633         bt_ctf_field_type_put(uint_12_type);
 634         bt_ctf_field_type_put(int_64_type);
 635         bt_ctf_field_type_put(float_type);
 636         bt_ctf_field_type_put(enum_type);
 637         bt_ctf_field_type_put(enum_type_unsigned);
 638         bt_ctf_field_type_put(returned_type);
 639         bt_ctf_field_type_put(event_context_type);
 640         bt_ctf_field_put(integer_field);
 641         bt_ctf_field_put(float_field);
 642         bt_ctf_field_put(enum_field);
 643         bt_ctf_field_put(enum_field_unsigned);
 644         bt_ctf_field_put(enum_container_field);
 645         bt_ctf_field_put(enum_container_field_unsigned);
 646         bt_ctf_field_put(packet_context);
 647         bt_ctf_field_put(packet_context_field);
 648         bt_ctf_field_put(stream_event_context);
 649         bt_ctf_field_put(stream_event_context_field);
 650         bt_ctf_field_put(event_context);
 651         bt_ctf_field_put(event_context_field);
 652 }
 653
 654 void append_complex_event(struct bt_ctf_stream_class *stream_class,
 655                 struct bt_ctf_stream *stream, struct bt_ctf_clock *clock)
 656 {
 657         struct event_class_attrs_counts {
 658                 int id;
 659                 int name;
 660                 int loglevel;
 661                 int modelemfuri;
 662                 int unknown;
 663         } attrs_count;
 664
 665         int i;
 666         int ret;
 667         int64_t int64_value;
 668         struct event_class_attrs_counts ;
 669         const char *complex_test_event_string = "Complex Test Event";
 670         const char *test_string_1 = "Test ";
 671         const char *test_string_2 = "string ";
 672         const char *test_string_3 = "abcdefghi";
 673         const char *test_string_4 = "abcd\0efg\0hi";
 674         const char *test_string_cat = "Test string abcdeabcd";
 675         struct bt_ctf_field_type *uint_35_type =
 676                 bt_ctf_field_type_integer_create(35);
 677         struct bt_ctf_field_type *int_16_type =
 678                 bt_ctf_field_type_integer_create(16);
 679         struct bt_ctf_field_type *uint_3_type =
 680                 bt_ctf_field_type_integer_create(3);
 681         struct bt_ctf_field_type *enum_variant_type =
 682                 bt_ctf_field_type_enumeration_create(uint_3_type);
 683         struct bt_ctf_field_type *variant_type =
 684                 bt_ctf_field_type_variant_create(enum_variant_type,
 685                         "variant_selector");
 686         struct bt_ctf_field_type *string_type =
 687                 bt_ctf_field_type_string_create();
 688         struct bt_ctf_field_type *sequence_type;
 689         struct bt_ctf_field_type *array_type;
 690         struct bt_ctf_field_type *inner_structure_type =
 691                 bt_ctf_field_type_structure_create();
 692         struct bt_ctf_field_type *complex_structure_type =
 693                 bt_ctf_field_type_structure_create();
 694         struct bt_ctf_field_type *ret_field_type;
 695         struct bt_ctf_event_class *event_class;
 696         struct bt_ctf_event *event;
 697         struct bt_ctf_field *uint_35_field, *int_16_field, *a_string_field,
 698                 *inner_structure_field, *complex_structure_field,
 699                 *a_sequence_field, *enum_variant_field, *enum_container_field,
 700                 *variant_field, *an_array_field, *ret_field;
 701         uint64_t ret_unsigned_int;
 702         int64_t ret_signed_int;
 703         const char *ret_string;
 704         struct bt_ctf_stream_class *ret_stream_class;
 705         struct bt_ctf_event_class *ret_event_class;
 706         struct bt_ctf_field *packet_context, *packet_context_field;
 707         struct bt_object *obj;
 708
 709         bt_ctf_field_type_set_alignment(int_16_type, 32);
 710         bt_ctf_field_type_integer_set_signed(int_16_type, 1);
 711         bt_ctf_field_type_integer_set_base(uint_35_type,
 712                 BT_CTF_INTEGER_BASE_HEXADECIMAL);
 713
 714         array_type = bt_ctf_field_type_array_create(int_16_type, ARRAY_TEST_LENGTH);
 715         sequence_type = bt_ctf_field_type_sequence_create(int_16_type,
 716                 "seq_len");
 717
 718         ok(bt_ctf_field_type_array_get_element_type(NULL) == NULL,
 719                 "bt_ctf_field_type_array_get_element_type handles NULL correctly");
 720         ret_field_type = bt_ctf_field_type_array_get_element_type(
 721                 array_type);
 722         ok(ret_field_type == int_16_type,
 723                 "bt_ctf_field_type_array_get_element_type returns the correct type");
 724         bt_ctf_field_type_put(ret_field_type);
 725
 726         ok(bt_ctf_field_type_array_get_length(NULL) < 0,
 727                 "bt_ctf_field_type_array_get_length handles NULL correctly");
 728         ok(bt_ctf_field_type_array_get_length(array_type) == ARRAY_TEST_LENGTH,
 729                 "bt_ctf_field_type_array_get_length returns the correct length");
 730
 731         bt_ctf_field_type_structure_add_field(inner_structure_type,
 732                 uint_35_type, "seq_len");
 733         bt_ctf_field_type_structure_add_field(inner_structure_type,
 734                 sequence_type, "a_sequence");
 735         bt_ctf_field_type_structure_add_field(inner_structure_type,
 736                 array_type, "an_array");
 737
 738         bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
 739                 "UINT3_TYPE", 0, 0);
 740         bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
 741                 "INT16_TYPE", 1, 1);
 742         bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
 743                 "UINT35_TYPE", 2, 7);
 744
 745         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_name(NULL,
 746                 "INT16_TYPE") < 0,
 747                 "bt_ctf_field_type_enumeration_get_mapping_index_by_name handles a NULL field type correctly");
 748         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_name(
 749                 enum_variant_type, NULL) < 0,
 750                 "bt_ctf_field_type_enumeration_get_mapping_index_by_name handles a NULL name correctly");
 751         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_name(
 752                 enum_variant_type, "INT16_TYPE") == 1,
 753                 "bt_ctf_field_type_enumeration_get_mapping_index_by_name returns the correct index");
 754
 755         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value(NULL, 1) < 0,
 756                 "bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value handles a NULL field type correctly");
 757         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value(enum_variant_type, -42) < 0,
 758                 "bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value handles invalid values correctly");
 759         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value(enum_variant_type, 5) == 2,
 760                 "bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value returns the correct index");
 761
 762         ok(bt_ctf_field_type_variant_add_field(variant_type, uint_3_type,
 763                 "An unknown entry"), "Reject a variant field based on an unknown tag value");
 764         ok(bt_ctf_field_type_variant_add_field(variant_type, uint_3_type,
 765                 "UINT3_TYPE") == 0, "Add a field to a variant");
 766         bt_ctf_field_type_variant_add_field(variant_type, int_16_type,
 767                 "INT16_TYPE");
 768         bt_ctf_field_type_variant_add_field(variant_type, uint_35_type,
 769                 "UINT35_TYPE");
 770
 771         ok(bt_ctf_field_type_variant_get_tag_type(NULL) == NULL,
 772                 "bt_ctf_field_type_variant_get_tag_type handles NULL correctly");
 773         ret_field_type = bt_ctf_field_type_variant_get_tag_type(variant_type);
 774         ok(ret_field_type == enum_variant_type,
 775                 "bt_ctf_field_type_variant_get_tag_type returns a correct tag type");
 776         bt_ctf_field_type_put(ret_field_type);
 777
 778         ok(bt_ctf_field_type_variant_get_tag_name(NULL) == NULL,
 779                 "bt_ctf_field_type_variant_get_tag_name handles NULL correctly");
 780         ret_string = bt_ctf_field_type_variant_get_tag_name(variant_type);
 781         ok(!strcmp(ret_string, "variant_selector"),
 782                 "bt_ctf_field_type_variant_get_tag_name returns the correct variant tag name");
 783         ok(bt_ctf_field_type_variant_get_field_type_by_name(NULL,
 784                 "INT16_TYPE") == NULL,
 785                 "bt_ctf_field_type_variant_get_field_type_by_name handles a NULL variant_type correctly");
 786         ok(bt_ctf_field_type_variant_get_field_type_by_name(variant_type,
 787                 NULL) == NULL,
 788                 "bt_ctf_field_type_variant_get_field_type_by_name handles a NULL field name correctly");
 789         ret_field_type = bt_ctf_field_type_variant_get_field_type_by_name(
 790                 variant_type, "INT16_TYPE");
 791         ok(ret_field_type == int_16_type,
 792                 "bt_ctf_field_type_variant_get_field_type_by_name returns a correct field type");
 793         bt_ctf_field_type_put(ret_field_type);
 794
 795         ok(bt_ctf_field_type_variant_get_field_count(NULL) < 0,
 796                 "bt_ctf_field_type_variant_get_field_count handles NULL correctly");
 797         ok(bt_ctf_field_type_variant_get_field_count(variant_type) == 3,
 798                 "bt_ctf_field_type_variant_get_field_count returns the correct count");
 799
 800         ok(bt_ctf_field_type_variant_get_field(NULL, &ret_string, &ret_field_type, 0) < 0,
 801                 "bt_ctf_field_type_variant_get_field handles a NULL type correctly");
 802         ok(bt_ctf_field_type_variant_get_field(variant_type, NULL, &ret_field_type, 0) < 0,
 803                 "bt_ctf_field_type_variant_get_field handles a NULL field name correctly");
 804         ok(bt_ctf_field_type_variant_get_field(variant_type, &ret_string, NULL, 0) < 0,
 805                 "bt_ctf_field_type_variant_get_field handles a NULL field type correctly");
 806         ok(bt_ctf_field_type_variant_get_field(variant_type, &ret_string, &ret_field_type, 200) < 0,
 807                 "bt_ctf_field_type_variant_get_field handles an invalid index correctly");
 808         ok(bt_ctf_field_type_variant_get_field(variant_type, &ret_string, &ret_field_type, 1) == 0,
 809                 "bt_ctf_field_type_variant_get_field returns a field");
 810         ok(!strcmp("INT16_TYPE", ret_string),
 811                 "bt_ctf_field_type_variant_get_field returns a correct field name");
 812         ok(ret_field_type == int_16_type,
 813                 "bt_ctf_field_type_variant_get_field returns a correct field type");
 814         bt_ctf_field_type_put(ret_field_type);
 815
 816         bt_ctf_field_type_structure_add_field(complex_structure_type,
 817                 enum_variant_type, "variant_selector");
 818         bt_ctf_field_type_structure_add_field(complex_structure_type,
 819                 string_type, "a_string");
 820         bt_ctf_field_type_structure_add_field(complex_structure_type,
 821                 variant_type, "variant_value");
 822         bt_ctf_field_type_structure_add_field(complex_structure_type,
 823                 inner_structure_type, "inner_structure");
 824
 825         ok(bt_ctf_event_class_create("clock") == NULL,
 826                 "Reject creation of an event class with an illegal name");
 827         event_class = bt_ctf_event_class_create(complex_test_event_string);
 828         ok(event_class, "Create an event class");
 829         ok(bt_ctf_event_class_add_field(event_class, uint_35_type, ""),
 830                 "Reject addition of a field with an empty name to an event");
 831         ok(bt_ctf_event_class_add_field(event_class, NULL, "an_integer"),
 832                 "Reject addition of a field with a NULL type to an event");
 833         ok(bt_ctf_event_class_add_field(event_class, uint_35_type,
 834                 "int"),
 835                 "Reject addition of a type with an illegal name to an event");
 836         ok(bt_ctf_event_class_add_field(event_class, uint_35_type,
 837                 "uint_35") == 0,
 838                 "Add field of type unsigned integer to an event");
 839         ok(bt_ctf_event_class_add_field(event_class, int_16_type,
 840                 "int_16") == 0, "Add field of type signed integer to an event");
 841         ok(bt_ctf_event_class_add_field(event_class, complex_structure_type,
 842                 "complex_structure") == 0,
 843                 "Add composite structure to an event");
 844
 845         ok(bt_ctf_event_class_get_name(NULL) == NULL,
 846                 "bt_ctf_event_class_get_name handles NULL correctly");
 847         ret_string = bt_ctf_event_class_get_name(event_class);
 848         ok(!strcmp(ret_string, complex_test_event_string),
 849                 "bt_ctf_event_class_get_name returns a correct name");
 850         ok(bt_ctf_event_class_get_id(event_class) < 0,
 851                 "bt_ctf_event_class_get_id returns a negative value when not set");
 852         ok(bt_ctf_event_class_get_id(NULL) < 0,
 853                 "bt_ctf_event_class_get_id handles NULL correctly");
 854         ok(bt_ctf_event_class_set_id(NULL, 42) < 0,
 855                 "bt_ctf_event_class_set_id handles NULL correctly");
 856         ok(bt_ctf_event_class_set_id(event_class, 42) == 0,
 857                 "Set an event class' id");
 858         ok(bt_ctf_event_class_get_id(event_class) == 42,
 859                 "bt_ctf_event_class_get_id returns the correct value");
 860
 861         /* Test event class attributes */
 862         assert(obj = bt_object_integer_create_init(15));
 863         ok(bt_ctf_event_class_set_attribute(NULL, "id", obj),
 864                 "bt_ctf_event_class_set_attribute handles a NULL event class correctly");
 865         ok(bt_ctf_event_class_set_attribute(event_class, NULL, obj),
 866                 "bt_ctf_event_class_set_attribute handles a NULL name correctly");
 867         ok(bt_ctf_event_class_set_attribute(event_class, "id", NULL),
 868                 "bt_ctf_event_class_set_attribute handles a NULL value correctly");
 869         assert(!bt_object_integer_set(obj, -3));
 870         ok(bt_ctf_event_class_set_attribute(event_class, "id", obj),
 871                 "bt_ctf_event_class_set_attribute fails with a negative \"id\" attribute");
 872         assert(!bt_object_integer_set(obj, 11));
 873         ret = bt_ctf_event_class_set_attribute(event_class, "id", obj);
 874         ok(!ret && bt_ctf_event_class_get_id(event_class) == 11,
 875                 "bt_ctf_event_class_set_attribute succeeds in replacing the existing \"id\" attribute");
 876         ret = bt_ctf_event_class_set_attribute(event_class, "name", obj);
 877         ret &= bt_ctf_event_class_set_attribute(event_class, "model.emf.uri", obj);
 878         ok(ret,
 879                 "bt_ctf_event_class_set_attribute cannot set \"name\" or \"model.emf.uri\" to an integer value");
 880         BT_OBJECT_PUT(obj);
 881
 882         obj = bt_object_integer_create_init(5);
 883         assert(obj);
 884         ok(!bt_ctf_event_class_set_attribute(event_class, "loglevel", obj),
 885                 "bt_ctf_event_class_set_attribute succeeds in setting the \"loglevel\" attribute");
 886         BT_OBJECT_PUT(obj);
 887         ok(!bt_ctf_event_class_get_attribute_value_by_name(NULL, "loglevel"),
 888                 "bt_ctf_event_class_get_attribute_value_by_name handles a NULL event class correctly");
 889         ok(!bt_ctf_event_class_get_attribute_value_by_name(event_class, NULL),
 890                 "bt_ctf_event_class_get_attribute_value_by_name handles a NULL name correctly");
 891         ok(!bt_ctf_event_class_get_attribute_value_by_name(event_class, "meow"),
 892                 "bt_ctf_event_class_get_attribute_value_by_name fails with a non-existing attribute name");
 893         obj = bt_ctf_event_class_get_attribute_value_by_name(event_class,
 894                 "loglevel");
 895         int64_value = 0;
 896         ret = bt_object_integer_get(obj, &int64_value);
 897         ok(obj && !ret && int64_value == 5,
 898                 "bt_ctf_event_class_get_attribute_value_by_name returns the correct value");
 899         BT_OBJECT_PUT(obj);
 900
 901         assert(obj = bt_object_string_create_init("nu name"));
 902         assert(!bt_ctf_event_class_set_attribute(event_class, "name", obj));
 903         ret_string = bt_ctf_event_class_get_name(event_class);
 904         ok(!strcmp(ret_string, "nu name"),
 905                 "bt_ctf_event_class_set_attribute succeeds in replacing the existing \"name\" attribute");
 906         ret = bt_ctf_event_class_set_attribute(event_class, "id", obj);
 907         ret &= bt_ctf_event_class_set_attribute(event_class, "loglevel", obj);
 908         ok(ret,
 909                 "bt_ctf_event_class_set_attribute cannot set \"id\" or \"loglevel\" to a string value");
 910         BT_OBJECT_PUT(obj);
 911         obj = bt_object_string_create_init("http://kernel.org/");
 912         assert(obj);
 913         assert(!bt_ctf_event_class_set_attribute(event_class, "model.emf.uri", obj));
 914         BT_OBJECT_PUT(obj);
 915
 916         ok(bt_ctf_event_class_get_attribute_count(NULL),
 917                 "bt_ctf_event_class_get_attribute_count handles a NULL event class");
 918         ok(bt_ctf_event_class_get_attribute_count(event_class) == 4,
 919                 "bt_ctf_event_class_get_attribute_count returns the correct count");
 920         ok(!bt_ctf_event_class_get_attribute_name(NULL, 0),
 921                 "bt_ctf_event_class_get_attribute_name handles a NULL event class correctly");
 922         ok(!bt_ctf_event_class_get_attribute_name(event_class, 4),
 923                 "bt_ctf_event_class_get_attribute_name handles a too large index correctly");
 924         ok(!bt_ctf_event_class_get_attribute_value(NULL, 0),
 925                 "bt_ctf_event_class_get_attribute_value handles a NULL event class correctly");
 926         ok(!bt_ctf_event_class_get_attribute_value(event_class, 4),
 927                 "bt_ctf_event_class_get_attribute_value handles a too large index correctly");
 928
 929         memset(&attrs_count, 0, sizeof(attrs_count));
 930
 931         for (i = 0; i < 4; ++i) {
 932                 ret_string = bt_ctf_event_class_get_attribute_name(event_class,
 933                         i);
 934                 obj = bt_ctf_event_class_get_attribute_value(event_class, i);
 935                 assert(ret_string && obj);
 936
 937                 if (!strcmp(ret_string, "id")) {
 938                         attrs_count.id++;
 939                         ok(bt_object_is_integer(obj),
 940                                 "bt_ctf_event_class_get_attribute_value returns the correct type (\"%s\")",
 941                                 ret_string);
 942                 } else if (!strcmp(ret_string, "name")) {
 943                         attrs_count.name++;
 944                         ok(bt_object_is_string(obj),
 945                                 "bt_ctf_event_class_get_attribute_value returns the correct type (\"%s\")",
 946                                 ret_string);
 947                 } else if (!strcmp(ret_string, "loglevel")) {
 948                         attrs_count.loglevel++;
 949                         ok(bt_object_is_integer(obj),
 950                                 "bt_ctf_event_class_get_attribute_value returns the correct type (\"%s\")",
 951                                 ret_string);
 952                 } else if (!strcmp(ret_string, "model.emf.uri")) {
 953                         attrs_count.modelemfuri++;
 954                         ok(bt_object_is_string(obj),
 955                                 "bt_ctf_event_class_get_attribute_value returns the correct type (\"%s\")",
 956                                 ret_string);
 957                 } else {
 958                         attrs_count.unknown++;
 959                 }
 960
 961                 BT_OBJECT_PUT(obj);
 962         }
 963
 964         ok(attrs_count.unknown == 0, "event class has no unknown attributes");
 965         ok(attrs_count.id == 1 && attrs_count.name == 1 &&
 966                 attrs_count.loglevel == 1 && attrs_count.modelemfuri == 1,
 967                 "event class has one instance of each known attribute");
 968
 969         /* Add event class to the stream class */
 970         ok(bt_ctf_stream_class_add_event_class(stream_class, NULL),
 971                 "Reject addition of NULL event class to a stream class");
 972         ok(bt_ctf_stream_class_add_event_class(stream_class,
 973                 event_class) == 0, "Add an event class to stream class");
 974
 975         ok(bt_ctf_event_class_get_stream_class(NULL) == NULL,
 976                 "bt_ctf_event_class_get_stream_class handles NULL correctly");
 977         ret_stream_class = bt_ctf_event_class_get_stream_class(event_class);
 978         ok(ret_stream_class == stream_class,
 979                 "bt_ctf_event_class_get_stream_class returns the correct stream class");
 980         bt_ctf_stream_class_put(ret_stream_class);
 981
 982         ok(bt_ctf_event_class_get_field_count(NULL) < 0,
 983                 "bt_ctf_event_class_get_field_count handles NULL correctly");
 984         ok(bt_ctf_event_class_get_field_count(event_class) == 3,
 985                 "bt_ctf_event_class_get_field_count returns a correct value");
 986
 987         ok(bt_ctf_event_class_get_field(NULL, &ret_string,
 988                 &ret_field_type, 0) < 0,
 989                 "bt_ctf_event_class_get_field handles a NULL event class correctly");
 990         ok(bt_ctf_event_class_get_field(event_class, NULL,
 991                 &ret_field_type, 0) < 0,
 992                 "bt_ctf_event_class_get_field handles a NULL field name correctly");
 993         ok(bt_ctf_event_class_get_field(event_class, &ret_string,
 994                 NULL, 0) < 0,
 995                 "bt_ctf_event_class_get_field handles a NULL field type correctly");
 996         ok(bt_ctf_event_class_get_field(event_class, &ret_string,
 997                 &ret_field_type, 42) < 0,
 998                 "bt_ctf_event_class_get_field handles an invalid index correctly");
 999         ok(bt_ctf_event_class_get_field(event_class, &ret_string,
1000                 &ret_field_type, 0) == 0,
1001                 "bt_ctf_event_class_get_field returns a field");
1002         ok(ret_field_type == uint_35_type,
1003                 "bt_ctf_event_class_get_field returns a correct field type");
1004         bt_ctf_field_type_put(ret_field_type);
1005         ok(!strcmp(ret_string, "uint_35"),
1006                 "bt_ctf_event_class_get_field returns a correct field name");
1007         ok(bt_ctf_event_class_get_field_by_name(NULL, "") == NULL,
1008                 "bt_ctf_event_class_get_field_by_name handles a NULL event class correctly");
1009         ok(bt_ctf_event_class_get_field_by_name(event_class, NULL) == NULL,
1010                 "bt_ctf_event_class_get_field_by_name handles a NULL field name correctly");
1011         ok(bt_ctf_event_class_get_field_by_name(event_class, "truie") == NULL,
1012                 "bt_ctf_event_class_get_field_by_name handles an invalid field name correctly");
1013         ret_field_type = bt_ctf_event_class_get_field_by_name(event_class,
1014                 "complex_structure");
1015         ok(ret_field_type == complex_structure_type,
1016                 "bt_ctf_event_class_get_field_by_name returns a correct field type");
1017         bt_ctf_field_type_put(ret_field_type);
1018
1019         event = bt_ctf_event_create(event_class);
1020         ok(event, "Instanciate a complex event");
1021
1022         ok(bt_ctf_event_get_class(NULL) == NULL,
1023                 "bt_ctf_event_get_class handles NULL correctly");
1024         ret_event_class = bt_ctf_event_get_class(event);
1025         ok(ret_event_class == event_class,
1026                 "bt_ctf_event_get_class returns the correct event class");
1027         bt_ctf_event_class_put(ret_event_class);
1028
1029         uint_35_field = bt_ctf_event_get_payload(event, "uint_35");
1030         if (!uint_35_field) {
1031                 printf("uint_35_field is NULL\n");
1032         }
1033
1034         ok(uint_35_field, "Use bt_ctf_event_get_payload to get a field instance ");
1035         bt_ctf_field_unsigned_integer_set_value(uint_35_field, 0x0DDF00D);
1036         ok(bt_ctf_field_unsigned_integer_get_value(NULL, &ret_unsigned_int) < 0,
1037                 "bt_ctf_field_unsigned_integer_get_value properly properly handles a NULL field.");
1038         ok(bt_ctf_field_unsigned_integer_get_value(uint_35_field, NULL) < 0,
1039                 "bt_ctf_field_unsigned_integer_get_value properly handles a NULL return value");
1040         ok(bt_ctf_field_unsigned_integer_get_value(uint_35_field,
1041                 &ret_unsigned_int) == 0,
1042                 "bt_ctf_field_unsigned_integer_get_value succeeds after setting a value");
1043         ok(ret_unsigned_int == 0x0DDF00D,
1044                 "bt_ctf_field_unsigned_integer_get_value returns the correct value");
1045         ok(bt_ctf_field_signed_integer_get_value(uint_35_field,
1046                 &ret_signed_int) < 0,
1047                 "bt_ctf_field_signed_integer_get_value fails on an unsigned field");
1048         bt_ctf_field_put(uint_35_field);
1049
1050         int_16_field = bt_ctf_event_get_payload(event, "int_16");
1051         bt_ctf_field_signed_integer_set_value(int_16_field, -12345);
1052         ok(bt_ctf_field_signed_integer_get_value(NULL, &ret_signed_int) < 0,
1053                 "bt_ctf_field_signed_integer_get_value properly handles a NULL field");
1054         ok(bt_ctf_field_signed_integer_get_value(int_16_field, NULL) < 0,
1055                 "bt_ctf_field_signed_integer_get_value properly handles a NULL return value");
1056         ok(bt_ctf_field_signed_integer_get_value(int_16_field,
1057                 &ret_signed_int) == 0,
1058                 "bt_ctf_field_signed_integer_get_value succeeds after setting a value");
1059         ok(ret_signed_int == -12345,
1060                 "bt_ctf_field_signed_integer_get_value returns the correct value");
1061         ok(bt_ctf_field_unsigned_integer_get_value(int_16_field,
1062                 &ret_unsigned_int) < 0,
1063                 "bt_ctf_field_unsigned_integer_get_value fails on a signed field");
1064         bt_ctf_field_put(int_16_field);
1065
1066         complex_structure_field = bt_ctf_event_get_payload(event,
1067                 "complex_structure");
1068
1069         ok(bt_ctf_field_structure_get_field_by_index(NULL, 0) == NULL,
1070                 "bt_ctf_field_structure_get_field_by_index handles NULL correctly");
1071         ok(bt_ctf_field_structure_get_field_by_index(NULL, 9) == NULL,
1072                 "bt_ctf_field_structure_get_field_by_index handles an invalid index correctly");
1073         inner_structure_field = bt_ctf_field_structure_get_field_by_index(
1074                 complex_structure_field, 3);
1075         ret_field_type = bt_ctf_field_get_type(inner_structure_field);
1076         bt_ctf_field_put(inner_structure_field);
1077         ok(ret_field_type == inner_structure_type,
1078                 "bt_ctf_field_structure_get_field_by_index returns a correct field");
1079         bt_ctf_field_type_put(ret_field_type);
1080
1081         inner_structure_field = bt_ctf_field_structure_get_field(
1082                 complex_structure_field, "inner_structure");
1083         a_string_field = bt_ctf_field_structure_get_field(
1084                 complex_structure_field, "a_string");
1085         enum_variant_field = bt_ctf_field_structure_get_field(
1086                 complex_structure_field, "variant_selector");
1087         variant_field = bt_ctf_field_structure_get_field(
1088                 complex_structure_field, "variant_value");
1089         uint_35_field = bt_ctf_field_structure_get_field(
1090                 inner_structure_field, "seq_len");
1091         a_sequence_field = bt_ctf_field_structure_get_field(
1092                 inner_structure_field, "a_sequence");
1093         an_array_field = bt_ctf_field_structure_get_field(
1094                 inner_structure_field, "an_array");
1095
1096         enum_container_field = bt_ctf_field_enumeration_get_container(
1097                 enum_variant_field);
1098         bt_ctf_field_unsigned_integer_set_value(enum_container_field, 1);
1099         int_16_field = bt_ctf_field_variant_get_field(variant_field,
1100                 enum_variant_field);
1101         bt_ctf_field_signed_integer_set_value(int_16_field, -200);
1102         bt_ctf_field_put(int_16_field);
1103         ok(!bt_ctf_field_string_get_value(a_string_field),
1104                 "bt_ctf_field_string_get_value returns NULL on an unset field");
1105         bt_ctf_field_string_set_value(a_string_field,
1106                 test_string_1);
1107         ok(!bt_ctf_field_string_get_value(NULL),
1108                 "bt_ctf_field_string_get_value correctly handles NULL");
1109         ok(bt_ctf_field_string_append(NULL, "yeah"),
1110                 "bt_ctf_field_string_append correctly handles a NULL string field");
1111         ok(bt_ctf_field_string_append(a_string_field, NULL),
1112                 "bt_ctf_field_string_append correctly handles a NULL string value");
1113         ok(!bt_ctf_field_string_append(a_string_field, test_string_2),
1114                 "bt_ctf_field_string_append succeeds");
1115         ok(bt_ctf_field_string_append_len(NULL, "oh noes", 3),
1116                 "bt_ctf_field_string_append_len correctly handles a NULL string field");
1117         ok(bt_ctf_field_string_append_len(a_string_field, NULL, 3),
1118                 "bt_ctf_field_string_append_len correctly handles a NULL string value");
1119         ok(!bt_ctf_field_string_append_len(a_string_field, test_string_3, 5),
1120                 "bt_ctf_field_string_append_len succeeds (append 5 characters)");
1121         ok(!bt_ctf_field_string_append_len(a_string_field, test_string_4, 10),
1122                 "bt_ctf_field_string_append_len succeeds (append 4 characters)");
1123         ok(!bt_ctf_field_string_append_len(a_string_field, &test_string_4[4], 3),
1124                 "bt_ctf_field_string_append_len succeeds (append 0 characters)");
1125         ok(!bt_ctf_field_string_append_len(a_string_field, test_string_3, 0),
1126                 "bt_ctf_field_string_append_len succeeds (append 0 characters)");
1127
1128         ret_string = bt_ctf_field_string_get_value(a_string_field);
1129         ok(ret_string, "bt_ctf_field_string_get_value returns a string");
1130         ok(ret_string ? !strcmp(ret_string, test_string_cat) : 0,
1131                 "bt_ctf_field_string_get_value returns a correct value");
1132         bt_ctf_field_unsigned_integer_set_value(uint_35_field,
1133                 SEQUENCE_TEST_LENGTH);
1134
1135         ok(bt_ctf_field_type_variant_get_field_type_from_tag(NULL,
1136                 enum_container_field) == NULL,
1137                 "bt_ctf_field_type_variant_get_field_type_from_tag handles a NULL variant type correctly");
1138         ok(bt_ctf_field_type_variant_get_field_type_from_tag(variant_type,
1139                 NULL) == NULL,
1140                 "bt_ctf_field_type_variant_get_field_type_from_tag handles a NULL tag correctly");
1141         ret_field_type = bt_ctf_field_type_variant_get_field_type_from_tag(
1142                 variant_type, enum_variant_field);
1143         ok(ret_field_type == int_16_type,
1144                 "bt_ctf_field_type_variant_get_field_type_from_tag returns the correct field type");
1145
1146         ok(bt_ctf_field_sequence_get_length(a_sequence_field) == NULL,
1147                 "bt_ctf_field_sequence_get_length returns NULL when length is unset");
1148         ok(bt_ctf_field_sequence_set_length(a_sequence_field,
1149                 uint_35_field) == 0, "Set a sequence field's length");
1150         ret_field = bt_ctf_field_sequence_get_length(a_sequence_field);
1151         ok(ret_field == uint_35_field,
1152                 "bt_ctf_field_sequence_get_length returns the correct length field");
1153         ok(bt_ctf_field_sequence_get_length(NULL) == NULL,
1154                 "bt_ctf_field_sequence_get_length properly handles NULL");
1155
1156         for (i = 0; i < SEQUENCE_TEST_LENGTH; i++) {
1157                 int_16_field = bt_ctf_field_sequence_get_field(
1158                         a_sequence_field, i);
1159                 bt_ctf_field_signed_integer_set_value(int_16_field, 4 - i);
1160                 bt_ctf_field_put(int_16_field);
1161         }
1162
1163         for (i = 0; i < ARRAY_TEST_LENGTH; i++) {
1164                 int_16_field = bt_ctf_field_array_get_field(
1165                         an_array_field, i);
1166                 bt_ctf_field_signed_integer_set_value(int_16_field, i);
1167                 bt_ctf_field_put(int_16_field);
1168         }
1169
1170         bt_ctf_clock_set_time(clock, ++current_time);
1171         ok(bt_ctf_stream_append_event(stream, event) == 0,
1172                 "Append a complex event to a stream");
1173
1174         /*
1175          * Populate the custom packet context field with a dummy value
1176          * otherwise flush will fail.
1177          */
1178         packet_context = bt_ctf_stream_get_packet_context(stream);
1179         packet_context_field = bt_ctf_field_structure_get_field(packet_context,
1180                 "custom_packet_context_field");
1181         bt_ctf_field_unsigned_integer_set_value(packet_context_field, 1);
1182
1183         ok(bt_ctf_stream_flush(stream) == 0,
1184                 "Flush a stream containing a complex event");
1185
1186         bt_ctf_field_put(uint_35_field);
1187         bt_ctf_field_put(a_string_field);
1188         bt_ctf_field_put(inner_structure_field);
1189         bt_ctf_field_put(complex_structure_field);
1190         bt_ctf_field_put(a_sequence_field);
1191         bt_ctf_field_put(an_array_field);
1192         bt_ctf_field_put(enum_variant_field);
1193         bt_ctf_field_put(enum_container_field);
1194         bt_ctf_field_put(variant_field);
1195         bt_ctf_field_put(ret_field);
1196         bt_ctf_field_put(packet_context_field);
1197         bt_ctf_field_put(packet_context);
1198         bt_ctf_field_type_put(uint_35_type);
1199         bt_ctf_field_type_put(int_16_type);
1200         bt_ctf_field_type_put(string_type);
1201         bt_ctf_field_type_put(sequence_type);
1202         bt_ctf_field_type_put(array_type);
1203         bt_ctf_field_type_put(inner_structure_type);
1204         bt_ctf_field_type_put(complex_structure_type);
1205         bt_ctf_field_type_put(uint_3_type);
1206         bt_ctf_field_type_put(enum_variant_type);
1207         bt_ctf_field_type_put(variant_type);
1208         bt_ctf_field_type_put(ret_field_type);
1209         bt_ctf_event_class_put(event_class);
1210         bt_ctf_event_put(event);
1211 }
1212
1213 void type_field_tests()
1214 {
1215         struct bt_ctf_field *uint_12;
1216         struct bt_ctf_field *int_16;
1217         struct bt_ctf_field *string;
1218         struct bt_ctf_field *enumeration;
1219         struct bt_ctf_field_type *composite_structure_type;
1220         struct bt_ctf_field_type *structure_seq_type;
1221         struct bt_ctf_field_type *string_type;
1222         struct bt_ctf_field_type *sequence_type;
1223         struct bt_ctf_field_type *uint_8_type;
1224         struct bt_ctf_field_type *int_16_type;
1225         struct bt_ctf_field_type *uint_12_type =
1226                 bt_ctf_field_type_integer_create(12);
1227         struct bt_ctf_field_type *enumeration_type;
1228         struct bt_ctf_field_type *enumeration_sequence_type;
1229         struct bt_ctf_field_type *enumeration_array_type;
1230         struct bt_ctf_field_type *returned_type;
1231         const char *ret_string;
1232
1233         returned_type = bt_ctf_field_get_type(NULL);
1234         ok(!returned_type, "bt_ctf_field_get_type handles NULL correctly");
1235
1236         ok(uint_12_type, "Create an unsigned integer type");
1237         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1238                 BT_CTF_INTEGER_BASE_BINARY) == 0,
1239                 "Set integer type's base as binary");
1240         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1241                 BT_CTF_INTEGER_BASE_DECIMAL) == 0,
1242                 "Set integer type's base as decimal");
1243         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1244                 BT_CTF_INTEGER_BASE_UNKNOWN),
1245                 "Reject integer type's base set as unknown");
1246         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1247                 BT_CTF_INTEGER_BASE_OCTAL) == 0,
1248                 "Set integer type's base as octal");
1249         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1250                 BT_CTF_INTEGER_BASE_HEXADECIMAL) == 0,
1251                 "Set integer type's base as hexadecimal");
1252         ok(bt_ctf_field_type_integer_set_base(uint_12_type, 457417),
1253                 "Reject unknown integer base value");
1254         ok(bt_ctf_field_type_integer_set_signed(uint_12_type, 952835) == 0,
1255                 "Set integer type signedness to signed");
1256         ok(bt_ctf_field_type_integer_set_signed(uint_12_type, 0) == 0,
1257                 "Set integer type signedness to unsigned");
1258         ok(bt_ctf_field_type_integer_get_size(NULL) < 0,
1259                 "bt_ctf_field_type_integer_get_size handles NULL correctly");
1260         ok(bt_ctf_field_type_integer_get_size(uint_12_type) == 12,
1261                 "bt_ctf_field_type_integer_get_size returns a correct value");
1262         ok(bt_ctf_field_type_integer_get_signed(NULL) < 0,
1263                 "bt_ctf_field_type_integer_get_signed handles NULL correctly");
1264         ok(bt_ctf_field_type_integer_get_signed(uint_12_type) == 0,
1265                 "bt_ctf_field_type_integer_get_signed returns a correct value for unsigned types");
1266
1267         ok(bt_ctf_field_type_set_byte_order(NULL,
1268                 BT_CTF_BYTE_ORDER_LITTLE_ENDIAN) < 0,
1269                 "bt_ctf_field_type_set_byte_order handles NULL correctly");
1270         ok(bt_ctf_field_type_set_byte_order(uint_12_type,
1271                 (enum bt_ctf_byte_order) 42) < 0,
1272                 "bt_ctf_field_type_set_byte_order rejects invalid values");
1273         ok(bt_ctf_field_type_set_byte_order(uint_12_type,
1274                 BT_CTF_BYTE_ORDER_LITTLE_ENDIAN) == 0,
1275                 "Set an integer's byte order to little endian");
1276         ok(bt_ctf_field_type_set_byte_order(uint_12_type,
1277                 BT_CTF_BYTE_ORDER_BIG_ENDIAN) == 0,
1278                 "Set an integer's byte order to big endian");
1279         ok(bt_ctf_field_type_get_byte_order(uint_12_type) ==
1280                 BT_CTF_BYTE_ORDER_BIG_ENDIAN,
1281                 "bt_ctf_field_type_get_byte_order returns a correct value");
1282         ok(bt_ctf_field_type_get_byte_order(NULL) ==
1283                 BT_CTF_BYTE_ORDER_UNKNOWN,
1284                 "bt_ctf_field_type_get_byte_order handles NULL correctly");
1285
1286         ok(bt_ctf_field_type_get_type_id(NULL) ==
1287                 CTF_TYPE_UNKNOWN,
1288                 "bt_ctf_field_type_get_type_id handles NULL correctly");
1289         ok(bt_ctf_field_type_get_type_id(uint_12_type) ==
1290                 CTF_TYPE_INTEGER,
1291                 "bt_ctf_field_type_get_type_id returns a correct value with an integer type");
1292
1293         ok(bt_ctf_field_type_integer_get_base(NULL) ==
1294                 BT_CTF_INTEGER_BASE_UNKNOWN,
1295                 "bt_ctf_field_type_integer_get_base handles NULL correctly");
1296         ok(bt_ctf_field_type_integer_get_base(uint_12_type) ==
1297                 BT_CTF_INTEGER_BASE_HEXADECIMAL,
1298                 "bt_ctf_field_type_integer_get_base returns a correct value");
1299
1300         ok(bt_ctf_field_type_integer_set_encoding(NULL, CTF_STRING_ASCII) < 0,
1301                 "bt_ctf_field_type_integer_set_encoding handles NULL correctly");
1302         ok(bt_ctf_field_type_integer_set_encoding(uint_12_type,
1303                 (enum ctf_string_encoding) 123) < 0,
1304                 "bt_ctf_field_type_integer_set_encoding handles invalid encodings correctly");
1305         ok(bt_ctf_field_type_integer_set_encoding(uint_12_type,
1306                 CTF_STRING_UTF8) == 0,
1307                 "Set integer type encoding to UTF8");
1308         ok(bt_ctf_field_type_integer_get_encoding(NULL) == CTF_STRING_UNKNOWN,
1309                 "bt_ctf_field_type_integer_get_encoding handles NULL correctly");
1310         ok(bt_ctf_field_type_integer_get_encoding(uint_12_type) == CTF_STRING_UTF8,
1311                 "bt_ctf_field_type_integer_get_encoding returns a correct value");
1312
1313         int_16_type = bt_ctf_field_type_integer_create(16);
1314         bt_ctf_field_type_integer_set_signed(int_16_type, 1);
1315         ok(bt_ctf_field_type_integer_get_signed(int_16_type) == 1,
1316                 "bt_ctf_field_type_integer_get_signed returns a correct value for signed types");
1317         uint_8_type = bt_ctf_field_type_integer_create(8);
1318         sequence_type =
1319                 bt_ctf_field_type_sequence_create(int_16_type, "seq_len");
1320         ok(sequence_type, "Create a sequence of int16_t type");
1321         ok(bt_ctf_field_type_get_type_id(sequence_type) ==
1322                 CTF_TYPE_SEQUENCE,
1323                 "bt_ctf_field_type_get_type_id returns a correct value with a sequence type");
1324
1325         ok(bt_ctf_field_type_sequence_get_length_field_name(NULL) == NULL,
1326                 "bt_ctf_field_type_sequence_get_length_field_name handles NULL correctly");
1327         ret_string = bt_ctf_field_type_sequence_get_length_field_name(
1328                 sequence_type);
1329         ok(!strcmp(ret_string, "seq_len"),
1330                 "bt_ctf_field_type_sequence_get_length_field_name returns the correct value");
1331         ok(bt_ctf_field_type_sequence_get_element_type(NULL) == NULL,
1332                 "bt_ctf_field_type_sequence_get_element_type handles NULL correctly");
1333         returned_type = bt_ctf_field_type_sequence_get_element_type(
1334                 sequence_type);
1335         ok(returned_type == int_16_type,
1336                 "bt_ctf_field_type_sequence_get_element_type returns the correct type");
1337         bt_ctf_field_type_put(returned_type);
1338
1339         string_type = bt_ctf_field_type_string_create();
1340         ok(string_type, "Create a string type");
1341         ok(bt_ctf_field_type_string_set_encoding(string_type,
1342                 CTF_STRING_NONE),
1343                 "Reject invalid \"None\" string encoding");
1344         ok(bt_ctf_field_type_string_set_encoding(string_type,
1345                 42),
1346                 "Reject invalid string encoding");
1347         ok(bt_ctf_field_type_string_set_encoding(string_type,
1348                 CTF_STRING_ASCII) == 0,
1349                 "Set string encoding to ASCII");
1350
1351         ok(bt_ctf_field_type_string_get_encoding(NULL) ==
1352                 CTF_STRING_UNKNOWN,
1353                 "bt_ctf_field_type_string_get_encoding handles NULL correctly");
1354         ok(bt_ctf_field_type_string_get_encoding(string_type) ==
1355                 CTF_STRING_ASCII,
1356                 "bt_ctf_field_type_string_get_encoding returns the correct value");
1357
1358         structure_seq_type = bt_ctf_field_type_structure_create();
1359         ok(bt_ctf_field_type_get_type_id(structure_seq_type) ==
1360                 CTF_TYPE_STRUCT,
1361                 "bt_ctf_field_type_get_type_id returns a correct value with a structure type");
1362         ok(structure_seq_type, "Create a structure type");
1363         ok(bt_ctf_field_type_structure_add_field(structure_seq_type,
1364                 uint_8_type, "seq_len") == 0,
1365                 "Add a uint8_t type to a structure");
1366         ok(bt_ctf_field_type_structure_add_field(structure_seq_type,
1367                 sequence_type, "a_sequence") == 0,
1368                 "Add a sequence type to a structure");
1369
1370         ok(bt_ctf_field_type_structure_get_field_count(NULL) < 0,
1371                 "bt_ctf_field_type_structure_get_field_count handles NULL correctly");
1372         ok(bt_ctf_field_type_structure_get_field_count(structure_seq_type) == 2,
1373                 "bt_ctf_field_type_structure_get_field_count returns a correct value");
1374
1375         ok(bt_ctf_field_type_structure_get_field(NULL,
1376                 &ret_string, &returned_type, 1) < 0,
1377                 "bt_ctf_field_type_structure_get_field handles a NULL type correctly");
1378         ok(bt_ctf_field_type_structure_get_field(structure_seq_type,
1379                 NULL, &returned_type, 1) < 0,
1380                 "bt_ctf_field_type_structure_get_field handles a NULL name correctly");
1381         ok(bt_ctf_field_type_structure_get_field(structure_seq_type,
1382                 &ret_string, NULL, 1) < 0,
1383                 "bt_ctf_field_type_structure_get_field handles a NULL return type correctly");
1384         ok(bt_ctf_field_type_structure_get_field(structure_seq_type,
1385                 &ret_string, &returned_type, 10) < 0,
1386                 "bt_ctf_field_type_structure_get_field handles an invalid index correctly");
1387         ok(bt_ctf_field_type_structure_get_field(structure_seq_type,
1388                 &ret_string, &returned_type, 1) == 0,
1389                 "bt_ctf_field_type_structure_get_field returns a field");
1390         ok(!strcmp(ret_string, "a_sequence"),
1391                 "bt_ctf_field_type_structure_get_field returns a correct field name");
1392         ok(returned_type == sequence_type,
1393                 "bt_ctf_field_type_structure_get_field returns a correct field type");
1394         bt_ctf_field_type_put(returned_type);
1395
1396         ok(bt_ctf_field_type_structure_get_field_type_by_name(NULL, "a_sequence") == NULL,
1397                 "bt_ctf_field_type_structure_get_field_type_by_name handles a NULL structure correctly");
1398         ok(bt_ctf_field_type_structure_get_field_type_by_name(structure_seq_type, NULL) == NULL,
1399                 "bt_ctf_field_type_structure_get_field_type_by_name handles a NULL field name correctly");
1400         returned_type = bt_ctf_field_type_structure_get_field_type_by_name(
1401                 structure_seq_type, "a_sequence");
1402         ok(returned_type == sequence_type,
1403                 "bt_ctf_field_type_structure_get_field_type_by_name returns the correct field type");
1404         bt_ctf_field_type_put(returned_type);
1405
1406         composite_structure_type = bt_ctf_field_type_structure_create();
1407         ok(bt_ctf_field_type_structure_add_field(composite_structure_type,
1408                 string_type, "a_string") == 0,
1409                 "Add a string type to a structure");
1410         ok(bt_ctf_field_type_structure_add_field(composite_structure_type,
1411                 structure_seq_type, "inner_structure") == 0,
1412                 "Add a structure type to a structure");
1413
1414         ok(bt_ctf_field_type_structure_get_field_type_by_name(
1415                 NULL, "a_sequence") == NULL,
1416                 "bt_ctf_field_type_structure_get_field_type_by_name handles a NULL field correctly");
1417         ok(bt_ctf_field_type_structure_get_field_type_by_name(
1418                 structure_seq_type, NULL) == NULL,
1419                 "bt_ctf_field_type_structure_get_field_type_by_name handles a NULL field name correctly");
1420         returned_type = bt_ctf_field_type_structure_get_field_type_by_name(
1421                 structure_seq_type, "a_sequence");
1422         ok(returned_type == sequence_type,
1423                 "bt_ctf_field_type_structure_get_field_type_by_name returns a correct type");
1424         bt_ctf_field_type_put(returned_type);
1425
1426         int_16 = bt_ctf_field_create(int_16_type);
1427         ok(int_16, "Instanciate a signed 16-bit integer");
1428         uint_12 = bt_ctf_field_create(uint_12_type);
1429         ok(uint_12, "Instanciate an unsigned 12-bit integer");
1430         returned_type = bt_ctf_field_get_type(int_16);
1431         ok(returned_type == int_16_type,
1432                 "bt_ctf_field_get_type returns the correct type");
1433
1434         /* Can't modify types after instanciating them */
1435         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1436                 BT_CTF_INTEGER_BASE_DECIMAL),
1437                 "Check an integer type' base can't be modified after instanciation");
1438         ok(bt_ctf_field_type_integer_set_signed(uint_12_type, 0),
1439                 "Check an integer type's signedness can't be modified after instanciation");
1440
1441         /* Check signed property is checked */
1442         ok(bt_ctf_field_signed_integer_set_value(uint_12, -52),
1443                 "Check bt_ctf_field_signed_integer_set_value is not allowed on an unsigned integer");
1444         ok(bt_ctf_field_unsigned_integer_set_value(int_16, 42),
1445                 "Check bt_ctf_field_unsigned_integer_set_value is not allowed on a signed integer");
1446
1447         /* Check overflows are properly tested for */
1448         ok(bt_ctf_field_signed_integer_set_value(int_16, -32768) == 0,
1449                 "Check -32768 is allowed for a signed 16-bit integer");
1450         ok(bt_ctf_field_signed_integer_set_value(int_16, 32767) == 0,
1451                 "Check 32767 is allowed for a signed 16-bit integer");
1452         ok(bt_ctf_field_signed_integer_set_value(int_16, 32768),
1453                 "Check 32768 is not allowed for a signed 16-bit integer");
1454         ok(bt_ctf_field_signed_integer_set_value(int_16, -32769),
1455                 "Check -32769 is not allowed for a signed 16-bit integer");
1456         ok(bt_ctf_field_signed_integer_set_value(int_16, -42) == 0,
1457                 "Check -42 is allowed for a signed 16-bit integer");
1458
1459         ok(bt_ctf_field_unsigned_integer_set_value(uint_12, 4095) == 0,
1460                 "Check 4095 is allowed for an unsigned 12-bit integer");
1461         ok(bt_ctf_field_unsigned_integer_set_value(uint_12, 4096),
1462                 "Check 4096 is not allowed for a unsigned 12-bit integer");
1463         ok(bt_ctf_field_unsigned_integer_set_value(uint_12, 0) == 0,
1464                 "Check 0 is allowed for an unsigned 12-bit integer");
1465
1466         string = bt_ctf_field_create(string_type);
1467         ok(string, "Instanciate a string field");
1468         ok(bt_ctf_field_string_set_value(string, "A value") == 0,
1469                 "Set a string's value");
1470
1471         enumeration_type = bt_ctf_field_type_enumeration_create(uint_12_type);
1472         ok(enumeration_type,
1473                 "Create an enumeration type with an unsigned 12-bit integer as container");
1474         enumeration_sequence_type = bt_ctf_field_type_sequence_create(
1475                 enumeration_type, "count");
1476         ok(!enumeration_sequence_type,
1477                 "Check enumeration types are validated when creating a sequence");
1478         enumeration_array_type = bt_ctf_field_type_array_create(
1479                 enumeration_type, 10);
1480         ok(!enumeration_array_type,
1481                 "Check enumeration types are validated when creating an array");
1482         ok(bt_ctf_field_type_structure_add_field(composite_structure_type,
1483                 enumeration_type, "enumeration"),
1484                 "Check enumeration types are validated when adding them as structure members");
1485         enumeration = bt_ctf_field_create(enumeration_type);
1486         ok(!enumeration,
1487                 "Check enumeration types are validated before instantiation");
1488
1489         bt_ctf_field_put(string);
1490         bt_ctf_field_put(uint_12);
1491         bt_ctf_field_put(int_16);
1492         bt_ctf_field_put(enumeration);
1493         bt_ctf_field_type_put(composite_structure_type);
1494         bt_ctf_field_type_put(structure_seq_type);
1495         bt_ctf_field_type_put(string_type);
1496         bt_ctf_field_type_put(sequence_type);
1497         bt_ctf_field_type_put(uint_8_type);
1498         bt_ctf_field_type_put(int_16_type);
1499         bt_ctf_field_type_put(uint_12_type);
1500         bt_ctf_field_type_put(enumeration_type);
1501         bt_ctf_field_type_put(enumeration_sequence_type);
1502         bt_ctf_field_type_put(enumeration_array_type);
1503         bt_ctf_field_type_put(returned_type);
1504 }
1505
1506 void packet_resize_test(struct bt_ctf_stream_class *stream_class,
1507                 struct bt_ctf_stream *stream, struct bt_ctf_clock *clock)
1508 {
1509         /*
1510          * Append enough events to force the underlying packet to be resized.
1511          * Also tests that a new event can be declared after a stream has been
1512          * instantiated and used/flushed.
1513          */
1514         int ret = 0;
1515         int i;
1516         struct bt_ctf_event_class *event_class = bt_ctf_event_class_create(
1517                 "Spammy_Event");
1518         struct bt_ctf_field_type *integer_type =
1519                 bt_ctf_field_type_integer_create(17);
1520         struct bt_ctf_field_type *string_type =
1521                 bt_ctf_field_type_string_create();
1522         struct bt_ctf_event *event = NULL;
1523         struct bt_ctf_field *ret_field = NULL;
1524         struct bt_ctf_field_type *ret_field_type = NULL;
1525         uint64_t ret_uint64;
1526         int events_appended = 0;
1527         struct bt_ctf_field *packet_context = NULL,
1528                 *packet_context_field = NULL, *event_context = NULL;
1529
1530         ret |= bt_ctf_event_class_add_field(event_class, integer_type,
1531                 "field_1");
1532         ret |= bt_ctf_event_class_add_field(event_class, string_type,
1533                 "a_string");
1534         ret |= bt_ctf_stream_class_add_event_class(stream_class, event_class);
1535         ok(ret == 0, "Add a new event class to a stream class after writing an event");
1536         if (ret) {
1537                 goto end;
1538         }
1539
1540         event = bt_ctf_event_create(event_class);
1541         ret_field = bt_ctf_event_get_payload_by_index(event, 0);
1542         ret_field_type = bt_ctf_field_get_type(ret_field);
1543         ok(ret_field_type == integer_type,
1544                 "bt_ctf_event_get_payload_by_index returns a correct field");
1545         bt_ctf_field_type_put(ret_field_type);
1546         bt_ctf_field_put(ret_field);
1547
1548         ok(bt_ctf_event_get_payload_by_index(NULL, 0) == NULL,
1549                 "bt_ctf_event_get_payload_by_index handles NULL correctly");
1550         ok(bt_ctf_event_get_payload_by_index(event, 4) == NULL,
1551                 "bt_ctf_event_get_payload_by_index handles an invalid index correctly");
1552         bt_ctf_event_put(event);
1553
1554         ok(bt_ctf_stream_get_event_context(NULL) == NULL,
1555                 "bt_ctf_stream_get_event_context handles NULL correctly");
1556         event_context = bt_ctf_stream_get_event_context(stream);
1557         ok(event_context,
1558                 "bt_ctf_stream_get_event_context returns a stream event context");
1559         ok(bt_ctf_stream_set_event_context(NULL, event_context) < 0,
1560                 "bt_ctf_stream_set_event_context handles a NULL stream correctly");
1561         ok(bt_ctf_stream_set_event_context(stream, NULL) < 0,
1562                 "bt_ctf_stream_set_event_context handles a NULL stream event context correctly");
1563         ok(!bt_ctf_stream_set_event_context(stream, event_context),
1564                 "bt_ctf_stream_set_event_context correctly set a stream event context");
1565         ret_field = bt_ctf_field_create(integer_type);
1566         ok(bt_ctf_stream_set_event_context(stream, ret_field) < 0,
1567                 "bt_ctf_stream_set_event_context rejects an event context of incorrect type");
1568         bt_ctf_field_put(ret_field);
1569
1570         for (i = 0; i < PACKET_RESIZE_TEST_LENGTH; i++) {
1571                 event = bt_ctf_event_create(event_class);
1572                 struct bt_ctf_field *integer =
1573                         bt_ctf_field_create(integer_type);
1574                 struct bt_ctf_field *string =
1575                         bt_ctf_field_create(string_type);
1576
1577                 ret |= bt_ctf_clock_set_time(clock, ++current_time);
1578                 ret |= bt_ctf_field_unsigned_integer_set_value(integer, i);
1579                 ret |= bt_ctf_event_set_payload(event, "field_1",
1580                         integer);
1581                 bt_ctf_field_put(integer);
1582                 ret |= bt_ctf_field_string_set_value(string, "This is a test");
1583                 ret |= bt_ctf_event_set_payload(event, "a_string",
1584                         string);
1585                 bt_ctf_field_put(string);
1586
1587                 /* Populate stream event context */
1588                 integer = bt_ctf_field_structure_get_field(event_context,
1589                         "common_event_context");
1590                 ret |= bt_ctf_field_unsigned_integer_set_value(integer,
1591                         i % 42);
1592                 bt_ctf_field_put(integer);
1593
1594                 ret |= bt_ctf_stream_append_event(stream, event);
1595                 bt_ctf_event_put(event);
1596
1597                 if (ret) {
1598                         break;
1599                 }
1600         }
1601
1602         events_appended = !!(i == PACKET_RESIZE_TEST_LENGTH);
1603         ok(bt_ctf_stream_get_discarded_events_count(NULL, &ret_uint64) < 0,
1604                 "bt_ctf_stream_get_discarded_events_count handles a NULL stream correctly");
1605         ok(bt_ctf_stream_get_discarded_events_count(stream, NULL) < 0,
1606                 "bt_ctf_stream_get_discarded_events_count handles a NULL return pointer correctly");
1607         ret = bt_ctf_stream_get_discarded_events_count(stream, &ret_uint64);
1608         ok(ret == 0 && ret_uint64 == 0,
1609                 "bt_ctf_stream_get_discarded_events_count returns a correct number of discarded events when none were discarded");
1610         bt_ctf_stream_append_discarded_events(stream, 1000);
1611         ret = bt_ctf_stream_get_discarded_events_count(stream, &ret_uint64);
1612         ok(ret == 0 && ret_uint64 == 1000,
1613                 "bt_ctf_stream_get_discarded_events_count returns a correct number of discarded events when some were discarded");
1614
1615 end:
1616         ok(events_appended, "Append 100 000 events to a stream");
1617
1618         /*
1619          * Populate the custom packet context field with a dummy value
1620          * otherwise flush will fail.
1621          */
1622         packet_context = bt_ctf_stream_get_packet_context(stream);
1623         packet_context_field = bt_ctf_field_structure_get_field(packet_context,
1624                 "custom_packet_context_field");
1625         bt_ctf_field_unsigned_integer_set_value(packet_context_field, 2);
1626
1627         ok(bt_ctf_stream_flush(stream) == 0,
1628                 "Flush a stream that forces a packet resize");
1629         ret = bt_ctf_stream_get_discarded_events_count(stream, &ret_uint64);
1630         ok(ret == 0 && ret_uint64 == 1000,
1631                 "bt_ctf_stream_get_discarded_events_count returns a correct number of discarded events after a flush");
1632         bt_ctf_field_type_put(integer_type);
1633         bt_ctf_field_type_put(string_type);
1634         bt_ctf_field_put(packet_context);
1635         bt_ctf_field_put(packet_context_field);
1636         bt_ctf_field_put(event_context);
1637         bt_ctf_event_class_put(event_class);
1638 }
1639
1640 void test_empty_stream(struct bt_ctf_writer *writer)
1641 {
1642         int ret = 0;
1643         struct bt_ctf_trace *trace = NULL, *ret_trace = NULL;
1644         struct bt_ctf_stream_class *stream_class = NULL;
1645         struct bt_ctf_stream *stream = NULL;
1646
1647         trace = bt_ctf_writer_get_trace(writer);
1648         if (!trace) {
1649                 diag("Failed to get trace from writer");
1650                 ret = -1;
1651                 goto end;
1652         }
1653
1654         stream_class = bt_ctf_stream_class_create("empty_stream");
1655         if (!stream_class) {
1656                 diag("Failed to create stream class");
1657                 ret = -1;
1658                 goto end;
1659         }
1660
1661         ok(bt_ctf_stream_class_get_trace(NULL) == NULL,
1662                 "bt_ctf_stream_class_get_trace handles NULL correctly");
1663         ok(bt_ctf_stream_class_get_trace(stream_class) == NULL,
1664                 "bt_ctf_stream_class_get_trace returns NULL when stream class is orphaned");
1665
1666         stream = bt_ctf_writer_create_stream(writer, stream_class);
1667         if (!stream) {
1668                 diag("Failed to create writer stream");
1669                 ret = -1;
1670                 goto end;
1671         }
1672
1673         ret_trace = bt_ctf_stream_class_get_trace(stream_class);
1674         ok(ret_trace == trace,
1675                 "bt_ctf_stream_class_get_trace returns the correct trace after a stream has been created");
1676 end:
1677         ok(ret == 0,
1678                 "Created a stream class with default attributes and an empty stream");
1679         bt_ctf_trace_put(trace);
1680         bt_ctf_trace_put(ret_trace);
1681         bt_ctf_stream_put(stream);
1682         bt_ctf_stream_class_put(stream_class);
1683 }
1684
1685 void test_instanciate_event_before_stream(struct bt_ctf_writer *writer)
1686 {
1687         int ret = 0;
1688         struct bt_ctf_trace *trace = NULL;
1689         struct bt_ctf_clock *clock = NULL;
1690         struct bt_ctf_stream_class *stream_class = NULL;
1691         struct bt_ctf_stream *stream = NULL,
1692                 *ret_stream = NULL;
1693         struct bt_ctf_event_class *event_class = NULL;
1694         struct bt_ctf_event *event = NULL;
1695         struct bt_ctf_field_type *integer_type = NULL;
1696         struct bt_ctf_field *integer = NULL;
1697
1698         trace = bt_ctf_writer_get_trace(writer);
1699         if (!trace) {
1700                 diag("Failed to get trace from writer");
1701                 ret = -1;
1702                 goto end;
1703         }
1704
1705         clock = bt_ctf_trace_get_clock(trace, 0);
1706         if (!clock) {
1707                 diag("Failed to get clock from trace");
1708                 ret = -1;
1709                 goto end;
1710         }
1711
1712         stream_class = bt_ctf_stream_class_create("event_before_stream_test");
1713         if (!stream_class) {
1714                 diag("Failed to create stream class");
1715                 ret = -1;
1716                 goto end;
1717         }
1718
1719         ret = bt_ctf_stream_class_set_clock(stream_class, clock);
1720         if (ret) {
1721                 diag("Failed to set stream class clock");
1722                 goto end;
1723         }
1724
1725         event_class = bt_ctf_event_class_create("some_event_class_name");
1726         integer_type = bt_ctf_field_type_integer_create(32);
1727         if (!integer_type) {
1728                 diag("Failed to create integer field type");
1729                 ret = -1;
1730                 goto end;
1731         }
1732
1733         ret = bt_ctf_event_class_add_field(event_class, integer_type,
1734                 "integer_field");
1735         if (ret) {
1736                 diag("Failed to add field to event class");
1737                 goto end;
1738         }
1739
1740         ret = bt_ctf_stream_class_add_event_class(stream_class,
1741                 event_class);
1742         if (ret) {
1743                 diag("Failed to add event class to stream class");
1744         }
1745
1746         event = bt_ctf_event_create(event_class);
1747         if (!event) {
1748                 diag("Failed to create event");
1749                 ret = -1;
1750                 goto end;
1751         }
1752
1753         integer = bt_ctf_event_get_payload_by_index(event, 0);
1754         if (!integer) {
1755                 diag("Failed to get integer field payload from event");
1756                 ret = -1;
1757                 goto end;
1758         }
1759
1760         ret = bt_ctf_field_unsigned_integer_set_value(integer, 1234);
1761         if (ret) {
1762                 diag("Failed to set integer field value");
1763                 goto end;
1764         }
1765
1766         stream = bt_ctf_writer_create_stream(writer, stream_class);
1767         if (!stream) {
1768                 diag("Failed to create writer stream");
1769                 ret = -1;
1770                 goto end;
1771         }
1772
1773         ok(bt_ctf_event_get_stream(NULL) == NULL,
1774                 "bt_ctf_event_get_stream handles NULL correctly");
1775         ok(bt_ctf_event_get_stream(event) == NULL,
1776                 "bt_ctf_event_get_stream returns NULL on event which has not yet been appended to a stream");
1777
1778         ret = bt_ctf_stream_append_event(stream, event);
1779         if (ret) {
1780                 diag("Failed to append event to stream");
1781                 goto end;
1782         }
1783
1784         ret_stream = bt_ctf_event_get_stream(event);
1785         ok(ret_stream == stream,
1786                 "bt_ctf_event_get_stream returns an event's stream after it has been appended");
1787 end:
1788         ok(ret == 0,
1789                 "Create an event before instanciating its associated stream");
1790         bt_ctf_trace_put(trace);
1791         bt_ctf_stream_put(stream);
1792         bt_ctf_stream_put(ret_stream);
1793         bt_ctf_stream_class_put(stream_class);
1794         bt_ctf_event_class_put(event_class);
1795         bt_ctf_event_put(event);
1796         bt_ctf_field_type_put(integer_type);
1797         bt_ctf_field_put(integer);
1798         bt_ctf_clock_put(clock);
1799 }
1800
1801 void append_existing_event_class(struct bt_ctf_stream_class *stream_class)
1802 {
1803         struct bt_ctf_event_class *event_class;
1804
1805         assert(event_class = bt_ctf_event_class_create("Simple Event"));
1806         ok(bt_ctf_stream_class_add_event_class(stream_class, event_class),
1807                 "two event classes with the same name cannot cohabit within the same stream class");
1808         bt_ctf_event_class_put(event_class);
1809
1810         event_class = bt_ctf_event_class_create("different name, ok");
1811         assert(event_class);
1812         assert(!bt_ctf_event_class_set_id(event_class, 11));
1813         ok(bt_ctf_stream_class_add_event_class(stream_class, event_class),
1814                 "two event classes with the same ID cannot cohabit within the same stream class");
1815         bt_ctf_event_class_put(event_class);
1816 }
1817
1818 int main(int argc, char **argv)
1819 {
1820         char trace_path[] = "/tmp/ctfwriter_XXXXXX";
1821         char metadata_path[sizeof(trace_path) + 9];
1822         const char *clock_name = "test_clock";
1823         const char *clock_description = "This is a test clock";
1824         const char *returned_clock_name;
1825         const char *returned_clock_description;
1826         const uint64_t frequency = 1123456789;
1827         const uint64_t offset_s = 1351530929945824323;
1828         const uint64_t offset = 1234567;
1829         const uint64_t precision = 10;
1830         const int is_absolute = 0xFF;
1831         char *metadata_string;
1832         struct bt_ctf_writer *writer;
1833         struct utsname name;
1834         char hostname[BABELTRACE_HOST_NAME_MAX];
1835         struct bt_ctf_clock *clock, *ret_clock;
1836         struct bt_ctf_stream_class *stream_class, *ret_stream_class;
1837         struct bt_ctf_stream *stream1;
1838         const char *ret_string;
1839         const unsigned char *ret_uuid;
1840         unsigned char tmp_uuid[16] = { 0 };
1841         struct bt_ctf_field_type *packet_context_type,
1842                 *packet_context_field_type,
1843                 *packet_header_type,
1844                 *packet_header_field_type,
1845                 *integer_type,
1846                 *stream_event_context_type,
1847                 *ret_field_type,
1848                 *event_header_field_type;
1849         struct bt_ctf_field *packet_header, *packet_header_field;
1850         struct bt_ctf_trace *trace;
1851         int ret;
1852         int64_t ret_int64_t;
1853         struct bt_object *obj;
1854
1855         if (argc < 3) {
1856                 printf("Usage: tests-ctf-writer path_to_ctf_parser_test path_to_babeltrace\n");
1857                 return -1;
1858         }
1859
1860         plan_no_plan();
1861
1862         if (!mkdtemp(trace_path)) {
1863                 perror("# perror");
1864         }
1865
1866         strcpy(metadata_path, trace_path);
1867         strcat(metadata_path + sizeof(trace_path) - 1, "/metadata");
1868
1869         writer = bt_ctf_writer_create(trace_path);
1870         ok(writer, "bt_ctf_create succeeds in creating trace with path");
1871
1872         ok(!bt_ctf_writer_get_trace(NULL),
1873                 "bt_ctf_writer_get_trace correctly handles NULL");
1874         trace = bt_ctf_writer_get_trace(writer);
1875         ok(trace,
1876                 "bt_ctf_writer_get_trace returns a bt_ctf_trace object");
1877         ok(bt_ctf_trace_set_byte_order(trace, BT_CTF_BYTE_ORDER_BIG_ENDIAN) == 0,
1878                 "Set a trace's byte order to big endian");
1879         ok(bt_ctf_trace_get_byte_order(trace) == BT_CTF_BYTE_ORDER_BIG_ENDIAN,
1880                 "bt_ctf_trace_get_byte_order returns a correct endianness");
1881
1882         /* Add environment context to the trace */
1883         ret = gethostname(hostname, sizeof(hostname));
1884         if (ret < 0) {
1885                 return ret;
1886         }
1887         ok(bt_ctf_writer_add_environment_field(writer, "host", hostname) == 0,
1888                 "Add host (%s) environment field to writer instance",
1889                 hostname);
1890         ok(bt_ctf_writer_add_environment_field(NULL, "test_field",
1891                 "test_value"),
1892                 "bt_ctf_writer_add_environment_field error with NULL writer");
1893         ok(bt_ctf_writer_add_environment_field(writer, NULL,
1894                 "test_value"),
1895                 "bt_ctf_writer_add_environment_field error with NULL field name");
1896         ok(bt_ctf_writer_add_environment_field(writer, "test_field",
1897                 NULL),
1898                 "bt_ctf_writer_add_environment_field error with NULL field value");
1899
1900         /* Test bt_ctf_trace_set_environment_field with an integer object */
1901         obj = bt_object_integer_create_init(23);
1902         assert(obj);
1903         ok(bt_ctf_trace_set_environment_field(NULL, "test_env_int_obj", obj),
1904                 "bt_ctf_trace_set_environment_field handles a NULL trace correctly");
1905         ok(bt_ctf_trace_set_environment_field(trace, NULL, obj),
1906                 "bt_ctf_trace_set_environment_field handles a NULL name correctly");
1907         ok(bt_ctf_trace_set_environment_field(trace, "test_env_int_obj", NULL),
1908                 "bt_ctf_trace_set_environment_field handles a NULL value correctly");
1909         ok(!bt_ctf_trace_set_environment_field(trace, "test_env_int_obj", obj),
1910                 "bt_ctf_trace_set_environment_field succeeds in adding an integer object");
1911         BT_OBJECT_PUT(obj);
1912
1913         /* Test bt_ctf_trace_set_environment_field with a string object */
1914         obj = bt_object_string_create_init("the value");
1915         assert(obj);
1916         ok(!bt_ctf_trace_set_environment_field(trace, "test_env_str_obj", obj),
1917                 "bt_ctf_trace_set_environment_field succeeds in adding a string object");
1918         BT_OBJECT_PUT(obj);
1919
1920         /* Test bt_ctf_trace_set_environment_field_integer */
1921         ok(bt_ctf_trace_set_environment_field_integer(NULL, "test_env_int",
1922                 -194875),
1923                 "bt_ctf_trace_set_environment_field_integer handles a NULL trace correctly");
1924         ok(bt_ctf_trace_set_environment_field_integer(trace, NULL, -194875),
1925                 "bt_ctf_trace_set_environment_field_integer handles a NULL name correctly");
1926         ok(!bt_ctf_trace_set_environment_field_integer(trace, "test_env_int",
1927                 -164973),
1928                 "bt_ctf_trace_set_environment_field_integer succeeds");
1929
1930         /* Test bt_ctf_trace_set_environment_field_string */
1931         ok(bt_ctf_trace_set_environment_field_string(NULL, "test_env_str",
1932                 "yeah"),
1933                 "bt_ctf_trace_set_environment_field_string handles a NULL trace correctly");
1934         ok(bt_ctf_trace_set_environment_field_string(trace, NULL, "yeah"),
1935                 "bt_ctf_trace_set_environment_field_string handles a NULL name correctly");
1936         ok(bt_ctf_trace_set_environment_field_string(trace, "test_env_str",
1937                 NULL),
1938                 "bt_ctf_trace_set_environment_field_string handles a NULL value correctly");
1939         ok(!bt_ctf_trace_set_environment_field_string(trace, "test_env_str",
1940                 "oh yeah"),
1941                 "bt_ctf_trace_set_environment_field_string succeeds");
1942
1943         /* Test bt_ctf_trace_get_environment_field_count */
1944         ok(bt_ctf_trace_get_environment_field_count(NULL) < 0,
1945                 "bt_ctf_trace_get_environment_field_count handles a NULL trace correctly");
1946         ok(bt_ctf_trace_get_environment_field_count(trace) == 5,
1947                 "bt_ctf_trace_get_environment_field_count returns a correct number of environment fields");
1948
1949         /* Test bt_ctf_trace_get_environment_field_name */
1950         ok(bt_ctf_trace_get_environment_field_name(NULL, 0) == NULL,
1951                 "bt_ctf_trace_get_environment_field_name handles a NULL trace correctly");
1952         ok(bt_ctf_trace_get_environment_field_name(trace, -1) == NULL,
1953                 "bt_ctf_trace_get_environment_field_name handles an invalid index correctly (negative)");
1954         ok(bt_ctf_trace_get_environment_field_name(trace, 5) == NULL,
1955                 "bt_ctf_trace_get_environment_field_name handles an invalid index correctly (too large)");
1956         ret_string = bt_ctf_trace_get_environment_field_name(trace, 0);
1957         ok(ret_string && !strcmp(ret_string, "host"),
1958                 "bt_ctf_trace_get_environment_field_name returns a correct field name");
1959         ret_string = bt_ctf_trace_get_environment_field_name(trace, 1);
1960         ok(ret_string && !strcmp(ret_string, "test_env_int_obj"),
1961                 "bt_ctf_trace_get_environment_field_name returns a correct field name");
1962         ret_string = bt_ctf_trace_get_environment_field_name(trace, 2);
1963         ok(ret_string && !strcmp(ret_string, "test_env_str_obj"),
1964                 "bt_ctf_trace_get_environment_field_name returns a correct field name");
1965         ret_string = bt_ctf_trace_get_environment_field_name(trace, 3);
1966         ok(ret_string && !strcmp(ret_string, "test_env_int"),
1967                 "bt_ctf_trace_get_environment_field_name returns a correct field name");
1968         ret_string = bt_ctf_trace_get_environment_field_name(trace, 4);
1969         ok(ret_string && !strcmp(ret_string, "test_env_str"),
1970                 "bt_ctf_trace_get_environment_field_name returns a correct field name");
1971
1972         /* Test bt_ctf_trace_get_environment_field_value */
1973         ok(bt_ctf_trace_get_environment_field_value(NULL, 0) == NULL,
1974                 "bt_ctf_trace_get_environment_field_value handles a NULL trace correctly");
1975         ok(bt_ctf_trace_get_environment_field_value(trace, -1) == NULL,
1976                 "bt_ctf_trace_get_environment_field_value handles an invalid index correctly (negative)");
1977         ok(bt_ctf_trace_get_environment_field_value(trace, 5) == NULL,
1978                 "bt_ctf_trace_get_environment_field_value handles an invalid index correctly (too large)");
1979         obj = bt_ctf_trace_get_environment_field_value(trace, 1);
1980         ret = bt_object_integer_get(obj, &ret_int64_t);
1981         ok(!ret && ret_int64_t == 23,
1982                 "bt_ctf_trace_get_environment_field_value succeeds in getting an integer value");
1983         BT_OBJECT_PUT(obj);
1984         obj = bt_ctf_trace_get_environment_field_value(trace, 2);
1985         ret = bt_object_string_get(obj, &ret_string);
1986         ok(!ret && ret_string && !strcmp(ret_string, "the value"),
1987                 "bt_ctf_trace_get_environment_field_value succeeds in getting a string value");
1988         BT_OBJECT_PUT(obj);
1989
1990         /* Test bt_ctf_trace_get_environment_field_value_by_name */
1991         ok(!bt_ctf_trace_get_environment_field_value_by_name(NULL,
1992                 "test_env_str"),
1993                 "bt_ctf_trace_get_environment_field_value_by_name handles a NULL trace correctly");
1994         ok(!bt_ctf_trace_get_environment_field_value_by_name(trace, NULL),
1995                 "bt_ctf_trace_get_environment_field_value_by_name handles a NULL name correctly");
1996         ok(!bt_ctf_trace_get_environment_field_value_by_name(trace, "oh oh"),
1997                 "bt_ctf_trace_get_environment_field_value_by_name returns NULL or an unknown field name");
1998         obj = bt_ctf_trace_get_environment_field_value_by_name(trace,
1999                 "test_env_str");
2000         ret = bt_object_string_get(obj, &ret_string);
2001         ok(!ret && ret_string && !strcmp(ret_string, "oh yeah"),
2002                 "bt_ctf_trace_get_environment_field_value_by_name succeeds in getting an existing field");
2003         BT_OBJECT_PUT(obj);
2004
2005         /* Test environment field replacement */
2006         ok(!bt_ctf_trace_set_environment_field_integer(trace, "test_env_int",
2007                 654321),
2008                 "bt_ctf_trace_set_environment_field_integer succeeds with an existing name");
2009         ok(bt_ctf_trace_get_environment_field_count(trace) == 5,
2010                 "bt_ctf_trace_set_environment_field_integer with an existing key does not increase the environment size");
2011         obj = bt_ctf_trace_get_environment_field_value(trace, 3);
2012         ret = bt_object_integer_get(obj, &ret_int64_t);
2013         ok(!ret && ret_int64_t == 654321,
2014                 "bt_ctf_trace_get_environment_field_value successfully replaces an existing field");
2015         BT_OBJECT_PUT(obj);
2016
2017         if (uname(&name)) {
2018                 perror("uname");
2019                 return -1;
2020         }
2021
2022         ok(bt_ctf_writer_add_environment_field(writer, "sysname", name.sysname)
2023                 == 0, "Add sysname (%s) environment field to writer instance",
2024                 name.sysname);
2025         ok(bt_ctf_writer_add_environment_field(writer, "nodename",
2026                 name.nodename) == 0,
2027                 "Add nodename (%s) environment field to writer instance",
2028                 name.nodename);
2029         ok(bt_ctf_writer_add_environment_field(writer, "release", name.release)
2030                 == 0, "Add release (%s) environment field to writer instance",
2031                 name.release);
2032         ok(bt_ctf_writer_add_environment_field(writer, "version", name.version)
2033                 == 0, "Add version (%s) environment field to writer instance",
2034                 name.version);
2035         ok(bt_ctf_writer_add_environment_field(writer, "machine", name.machine)
2036                 == 0, "Add machine (%s) environment field to writer istance",
2037                 name.machine);
2038
2039         /* Define a clock and add it to the trace */
2040         ok(bt_ctf_clock_create("signed") == NULL,
2041                 "Illegal clock name rejected");
2042         ok(bt_ctf_clock_create(NULL) == NULL, "NULL clock name rejected");
2043         clock = bt_ctf_clock_create(clock_name);
2044         ok(clock, "Clock created sucessfully");
2045         returned_clock_name = bt_ctf_clock_get_name(clock);
2046         ok(returned_clock_name, "bt_ctf_clock_get_name returns a clock name");
2047         ok(returned_clock_name ? !strcmp(returned_clock_name, clock_name) : 0,
2048                 "Returned clock name is valid");
2049
2050         returned_clock_description = bt_ctf_clock_get_description(clock);
2051         ok(!returned_clock_description, "bt_ctf_clock_get_description returns NULL on an unset description");
2052         ok(bt_ctf_clock_set_description(clock, clock_description) == 0,
2053                 "Clock description set successfully");
2054
2055         returned_clock_description = bt_ctf_clock_get_description(clock);
2056         ok(returned_clock_description,
2057                 "bt_ctf_clock_get_description returns a description.");
2058         ok(returned_clock_description ?
2059                 !strcmp(returned_clock_description, clock_description) : 0,
2060                 "Returned clock description is valid");
2061
2062         ok(bt_ctf_clock_get_frequency(clock) == DEFAULT_CLOCK_FREQ,
2063                 "bt_ctf_clock_get_frequency returns the correct default frequency");
2064         ok(bt_ctf_clock_set_frequency(clock, frequency) == 0,
2065                 "Set clock frequency");
2066         ok(bt_ctf_clock_get_frequency(clock) == frequency,
2067                 "bt_ctf_clock_get_frequency returns the correct frequency once it is set");
2068
2069         ok(bt_ctf_clock_get_offset_s(clock) == DEFAULT_CLOCK_OFFSET_S,
2070                 "bt_ctf_clock_get_offset_s returns the correct default offset (in seconds)");
2071         ok(bt_ctf_clock_set_offset_s(clock, offset_s) == 0,
2072                 "Set clock offset (seconds)");
2073         ok(bt_ctf_clock_get_offset_s(clock) == offset_s,
2074                 "bt_ctf_clock_get_offset_s returns the correct default offset (in seconds) once it is set");
2075
2076         ok(bt_ctf_clock_get_offset(clock) == DEFAULT_CLOCK_OFFSET,
2077                 "bt_ctf_clock_get_frequency returns the correct default offset (in ticks)");
2078         ok(bt_ctf_clock_set_offset(clock, offset) == 0, "Set clock offset");
2079         ok(bt_ctf_clock_get_offset(clock) == offset,
2080                 "bt_ctf_clock_get_frequency returns the correct default offset (in ticks) once it is set");
2081
2082         ok(bt_ctf_clock_get_precision(clock) == DEFAULT_CLOCK_PRECISION,
2083                 "bt_ctf_clock_get_precision returns the correct default precision");
2084         ok(bt_ctf_clock_set_precision(clock, precision) == 0,
2085                 "Set clock precision");
2086         ok(bt_ctf_clock_get_precision(clock) == precision,
2087                 "bt_ctf_clock_get_precision returns the correct precision once it is set");
2088
2089         ok(bt_ctf_clock_get_is_absolute(clock) == DEFAULT_CLOCK_IS_ABSOLUTE,
2090                 "bt_ctf_clock_get_precision returns the correct default is_absolute attribute");
2091         ok(bt_ctf_clock_set_is_absolute(clock, is_absolute) == 0,
2092                 "Set clock absolute property");
2093         ok(bt_ctf_clock_get_is_absolute(clock) == !!is_absolute,
2094                 "bt_ctf_clock_get_precision returns the correct is_absolute attribute once it is set");
2095
2096         ok(bt_ctf_clock_get_time(clock) == DEFAULT_CLOCK_TIME,
2097                 "bt_ctf_clock_get_time returns the correct default time");
2098         ok(bt_ctf_clock_set_time(clock, current_time) == 0,
2099                 "Set clock time");
2100         ok(bt_ctf_clock_get_time(clock) == current_time,
2101                 "bt_ctf_clock_get_time returns the correct time once it is set");
2102
2103         ok(bt_ctf_writer_add_clock(writer, clock) == 0,
2104                 "Add clock to writer instance");
2105         ok(bt_ctf_writer_add_clock(writer, clock),
2106                 "Verify a clock can't be added twice to a writer instance");
2107
2108         ok(bt_ctf_trace_get_clock_count(NULL) < 0,
2109                 "bt_ctf_trace_get_clock_count correctly handles NULL");
2110         ok(bt_ctf_trace_get_clock_count(trace) == 1,
2111                 "bt_ctf_trace_get_clock_count returns the correct number of clocks");
2112         ok(!bt_ctf_trace_get_clock(NULL, 0),
2113                 "bt_ctf_trace_get_clock correctly handles NULL");
2114         ok(!bt_ctf_trace_get_clock(trace, -1),
2115                 "bt_ctf_trace_get_clock correctly handles negative indexes");
2116         ok(!bt_ctf_trace_get_clock(trace, 1),
2117                 "bt_ctf_trace_get_clock correctly handles out of bound accesses");
2118         ret_clock = bt_ctf_trace_get_clock(trace, 0);
2119         ok(ret_clock == clock,
2120                 "bt_ctf_trace_get_clock returns the right clock instance");
2121         bt_ctf_clock_put(ret_clock);
2122         ok(!bt_ctf_trace_get_clock_by_name(trace, NULL),
2123                 "bt_ctf_trace_get_clock_by_name correctly handles NULL (trace)");
2124         ok(!bt_ctf_trace_get_clock_by_name(NULL, clock_name),
2125                 "bt_ctf_trace_get_clock_by_name correctly handles NULL (clock name)");
2126         ok(!bt_ctf_trace_get_clock_by_name(NULL, NULL),
2127                 "bt_ctf_trace_get_clock_by_name correctly handles NULL (both)");
2128         ret_clock = bt_ctf_trace_get_clock_by_name(trace, clock_name);
2129         ok(ret_clock == clock,
2130                 "bt_ctf_trace_get_clock_by_name returns the right clock instance");
2131         bt_ctf_clock_put(ret_clock);
2132         ok(!bt_ctf_trace_get_clock_by_name(trace, "random"),
2133                 "bt_ctf_trace_get_clock_by_name fails when the requested clock doesn't exist");
2134
2135         ok(!bt_ctf_clock_get_name(NULL),
2136                 "bt_ctf_clock_get_name correctly handles NULL");
2137         ok(!bt_ctf_clock_get_description(NULL),
2138                 "bt_ctf_clock_get_description correctly handles NULL");
2139         ok(bt_ctf_clock_get_frequency(NULL) == -1ULL,
2140                 "bt_ctf_clock_get_frequency correctly handles NULL");
2141         ok(bt_ctf_clock_get_precision(NULL) == -1ULL,
2142                 "bt_ctf_clock_get_precision correctly handles NULL");
2143         ok(bt_ctf_clock_get_offset_s(NULL) == -1ULL,
2144                 "bt_ctf_clock_get_offset_s correctly handles NULL");
2145         ok(bt_ctf_clock_get_offset(NULL) == -1ULL,
2146                 "bt_ctf_clock_get_offset correctly handles NULL");
2147         ok(bt_ctf_clock_get_is_absolute(NULL) < 0,
2148                 "bt_ctf_clock_get_is_absolute correctly handles NULL");
2149         ok(bt_ctf_clock_get_time(NULL) == -1ULL,
2150                 "bt_ctf_clock_get_time correctly handles NULL");
2151
2152         ok(bt_ctf_clock_set_description(NULL, NULL) < 0,
2153                 "bt_ctf_clock_set_description correctly handles NULL clock");
2154         ok(bt_ctf_clock_set_frequency(NULL, frequency) < 0,
2155                 "bt_ctf_clock_set_frequency correctly handles NULL clock");
2156         ok(bt_ctf_clock_set_precision(NULL, precision) < 0,
2157                 "bt_ctf_clock_get_precision correctly handles NULL clock");
2158         ok(bt_ctf_clock_set_offset_s(NULL, offset_s) < 0,
2159                 "bt_ctf_clock_set_offset_s correctly handles NULL clock");
2160         ok(bt_ctf_clock_set_offset(NULL, offset) < 0,
2161                 "bt_ctf_clock_set_offset correctly handles NULL clock");
2162         ok(bt_ctf_clock_set_is_absolute(NULL, is_absolute) < 0,
2163                 "bt_ctf_clock_set_is_absolute correctly handles NULL clock");
2164         ok(bt_ctf_clock_set_time(NULL, current_time) < 0,
2165                 "bt_ctf_clock_set_time correctly handles NULL clock");
2166         ok(bt_ctf_clock_get_uuid(NULL) == NULL,
2167                 "bt_ctf_clock_get_uuid correctly handles NULL clock");
2168         ret_uuid = bt_ctf_clock_get_uuid(clock);
2169         ok(ret_uuid,
2170                 "bt_ctf_clock_get_uuid returns a UUID");
2171         if (ret_uuid) {
2172                 memcpy(tmp_uuid, ret_uuid, sizeof(tmp_uuid));
2173                 /* Slightly modify UUID */
2174                 tmp_uuid[sizeof(tmp_uuid) - 1]++;
2175         }
2176
2177         ok(bt_ctf_clock_set_uuid(NULL, tmp_uuid) < 0,
2178                 "bt_ctf_clock_set_uuid correctly handles a NULL clock");
2179         ok(bt_ctf_clock_set_uuid(clock, NULL) < 0,
2180                 "bt_ctf_clock_set_uuid correctly handles a NULL UUID");
2181         ok(bt_ctf_clock_set_uuid(clock, tmp_uuid) == 0,
2182                 "bt_ctf_clock_set_uuid sets a new uuid succesfully");
2183         ret_uuid = bt_ctf_clock_get_uuid(clock);
2184         ok(ret_uuid,
2185                 "bt_ctf_clock_get_uuid returns a UUID after setting a new one");
2186         ok(uuid_match(ret_uuid, tmp_uuid),
2187                 "bt_ctf_clock_get_uuid returns the correct UUID after setting a new one");
2188
2189         /* Define a stream class */
2190         stream_class = bt_ctf_stream_class_create("test_stream");
2191
2192         ok(bt_ctf_stream_class_get_name(NULL) == NULL,
2193                 "bt_ctf_stream_class_get_name handles NULL correctly");
2194         ret_string = bt_ctf_stream_class_get_name(stream_class);
2195         ok(ret_string && !strcmp(ret_string, "test_stream"),
2196                 "bt_ctf_stream_class_get_name returns a correct stream class name");
2197
2198         ok(bt_ctf_stream_class_get_clock(stream_class) == NULL,
2199                 "bt_ctf_stream_class_get_clock returns NULL when a clock was not set");
2200         ok(bt_ctf_stream_class_get_clock(NULL) == NULL,
2201                 "bt_ctf_stream_class_get_clock handles NULL correctly");
2202
2203         ok(stream_class, "Create stream class");
2204         ok(bt_ctf_stream_class_set_clock(stream_class, clock) == 0,
2205                 "Set a stream class' clock");
2206         ret_clock = bt_ctf_stream_class_get_clock(stream_class);
2207         ok(ret_clock == clock,
2208                 "bt_ctf_stream_class_get_clock returns a correct clock");
2209         bt_ctf_clock_put(ret_clock);
2210
2211         /* Test the event fields and event types APIs */
2212         type_field_tests();
2213
2214         ok(bt_ctf_stream_class_get_id(stream_class) < 0,
2215                 "bt_ctf_stream_class_get_id returns an error when no id is set");
2216         ok(bt_ctf_stream_class_get_id(NULL) < 0,
2217                 "bt_ctf_stream_class_get_id handles NULL correctly");
2218         ok(bt_ctf_stream_class_set_id(NULL, 123) < 0,
2219                 "bt_ctf_stream_class_set_id handles NULL correctly");
2220         ok(bt_ctf_stream_class_set_id(stream_class, 123) == 0,
2221                 "Set an stream class' id");
2222         ok(bt_ctf_stream_class_get_id(stream_class) == 123,
2223                 "bt_ctf_stream_class_get_id returns the correct value");
2224
2225         /* Validate default event header fields */
2226         ok(bt_ctf_stream_class_get_event_header_type(NULL) == NULL,
2227                 "bt_ctf_stream_class_get_event_header_type handles NULL correctly");
2228         ret_field_type = bt_ctf_stream_class_get_event_header_type(
2229                 stream_class);
2230         ok(ret_field_type,
2231                 "bt_ctf_stream_class_get_event_header_type returns an event header type");
2232         ok(bt_ctf_field_type_get_type_id(ret_field_type) == CTF_TYPE_STRUCT,
2233                 "Default event header type is a structure");
2234         event_header_field_type =
2235                 bt_ctf_field_type_structure_get_field_type_by_name(
2236                 ret_field_type, "id");
2237         ok(event_header_field_type,
2238                 "Default event header type contains an \"id\" field");
2239         ok(bt_ctf_field_type_get_type_id(
2240                 event_header_field_type) == CTF_TYPE_INTEGER,
2241                 "Default event header \"id\" field is an integer");
2242         bt_ctf_field_type_put(event_header_field_type);
2243         event_header_field_type =
2244                 bt_ctf_field_type_structure_get_field_type_by_name(
2245                 ret_field_type, "timestamp");
2246         ok(event_header_field_type,
2247                 "Default event header type contains a \"timestamp\" field");
2248         ok(bt_ctf_field_type_get_type_id(
2249                 event_header_field_type) == CTF_TYPE_INTEGER,
2250                 "Default event header \"timestamp\" field is an integer");
2251         bt_ctf_field_type_put(event_header_field_type);
2252         bt_ctf_field_type_put(ret_field_type);
2253
2254         /* Add a custom trace packet header field */
2255         ok(bt_ctf_trace_get_packet_header_type(NULL) == NULL,
2256                 "bt_ctf_trace_get_packet_header_type handles NULL correctly");
2257         packet_header_type = bt_ctf_trace_get_packet_header_type(trace);
2258         ok(packet_header_type,
2259                 "bt_ctf_trace_get_packet_header_type returns a packet header");
2260         ok(bt_ctf_field_type_get_type_id(packet_header_type) == CTF_TYPE_STRUCT,
2261                 "bt_ctf_trace_get_packet_header_type returns a packet header of type struct");
2262         ret_field_type = bt_ctf_field_type_structure_get_field_type_by_name(
2263                 packet_header_type, "magic");
2264         ok(ret_field_type, "Default packet header type contains a \"magic\" field");
2265         bt_ctf_field_type_put(ret_field_type);
2266         ret_field_type = bt_ctf_field_type_structure_get_field_type_by_name(
2267                 packet_header_type, "uuid");
2268         ok(ret_field_type, "Default packet header type contains a \"uuid\" field");
2269         bt_ctf_field_type_put(ret_field_type);
2270         ret_field_type = bt_ctf_field_type_structure_get_field_type_by_name(
2271                 packet_header_type, "stream_id");
2272         ok(ret_field_type, "Default packet header type contains a \"stream_id\" field");
2273         bt_ctf_field_type_put(ret_field_type);
2274
2275         packet_header_field_type = bt_ctf_field_type_integer_create(22);
2276         ok(!bt_ctf_field_type_structure_add_field(packet_header_type,
2277                 packet_header_field_type, "custom_trace_packet_header_field"),
2278                 "Added a custom trace packet header field successfully");
2279
2280         ok(bt_ctf_trace_set_packet_header_type(NULL, packet_header_type) < 0,
2281                 "bt_ctf_trace_set_packet_header_type handles a NULL trace correctly");
2282         ok(bt_ctf_trace_set_packet_header_type(trace, NULL) < 0,
2283                 "bt_ctf_trace_set_packet_header_type handles a NULL packet_header_type correctly");
2284         ok(!bt_ctf_trace_set_packet_header_type(trace, packet_header_type),
2285                 "Set a trace packet_header_type successfully");
2286
2287         ok(bt_ctf_stream_class_get_packet_context_type(NULL) == NULL,
2288                 "bt_ctf_stream_class_get_packet_context_type handles NULL correctly");
2289
2290         /* Add a custom field to the stream class' packet context */
2291         packet_context_type = bt_ctf_stream_class_get_packet_context_type(stream_class);
2292         ok(packet_context_type,
2293                 "bt_ctf_stream_class_get_packet_context_type returns a packet context type.");
2294         ok(bt_ctf_field_type_get_type_id(packet_context_type) == CTF_TYPE_STRUCT,
2295                 "Packet context is a structure");
2296
2297         ok(bt_ctf_stream_class_set_packet_context_type(NULL, packet_context_type),
2298                 "bt_ctf_stream_class_set_packet_context_type handles a NULL stream class correctly");
2299         ok(bt_ctf_stream_class_set_packet_context_type(stream_class, NULL),
2300                 "bt_ctf_stream_class_set_packet_context_type handles a NULL packet context type correctly");
2301
2302         integer_type = bt_ctf_field_type_integer_create(32);
2303         ok(bt_ctf_stream_class_set_packet_context_type(stream_class,
2304                 integer_type) < 0,
2305                 "bt_ctf_stream_class_set_packet_context_type rejects a packet context that is not a structure");
2306         /* Create a "uint5_t" equivalent custom packet context field */
2307         packet_context_field_type = bt_ctf_field_type_integer_create(5);
2308
2309         ret = bt_ctf_field_type_structure_add_field(packet_context_type,
2310                 packet_context_field_type, "custom_packet_context_field");
2311         ok(ret == 0, "Packet context field added successfully");
2312
2313         /* Define a stream event context containing a my_integer field. */
2314         ok(bt_ctf_stream_class_get_event_context_type(NULL) == NULL,
2315                 "bt_ctf_stream_class_get_event_context_type handles NULL correctly");
2316         ok(bt_ctf_stream_class_get_event_context_type(
2317                 stream_class) == NULL,
2318                 "bt_ctf_stream_class_get_event_context_type returns NULL when no stream event context type was set.");
2319         stream_event_context_type = bt_ctf_field_type_structure_create();
2320         bt_ctf_field_type_structure_add_field(stream_event_context_type,
2321                 integer_type, "common_event_context");
2322
2323         ok(bt_ctf_stream_class_set_event_context_type(NULL,
2324                 stream_event_context_type) < 0,
2325                 "bt_ctf_stream_class_set_event_context_type handles a NULL stream_class correctly");
2326         ok(bt_ctf_stream_class_set_event_context_type(stream_class,
2327                 NULL) < 0,
2328                 "bt_ctf_stream_class_set_event_context_type handles a NULL event_context correctly");
2329         ok(bt_ctf_stream_class_set_event_context_type(stream_class,
2330                 integer_type) < 0,
2331                 "bt_ctf_stream_class_set_event_context_type validates that the event context os a structure");
2332
2333         ok(bt_ctf_stream_class_set_event_context_type(
2334                 stream_class, stream_event_context_type) == 0,
2335                 "Set a new stream event context type");
2336         ret_field_type = bt_ctf_stream_class_get_event_context_type(
2337                 stream_class);
2338         ok(ret_field_type == stream_event_context_type,
2339                 "bt_ctf_stream_class_get_event_context_type returns the correct field type.");
2340         bt_ctf_field_type_put(ret_field_type);
2341
2342         /* Instantiate a stream and append events */
2343         stream1 = bt_ctf_writer_create_stream(writer, stream_class);
2344         ok(stream1, "Instanciate a stream class from writer");
2345
2346         ok(bt_ctf_stream_get_class(NULL) == NULL,
2347                 "bt_ctf_stream_get_class correctly handles NULL");
2348         ret_stream_class = bt_ctf_stream_get_class(stream1);
2349         ok(ret_stream_class,
2350                 "bt_ctf_stream_get_class returns a stream class");
2351         ok(ret_stream_class == stream_class,
2352                 "Returned stream class is of the correct type");
2353
2354         /*
2355          * Try to modify the packet context type after a stream has been
2356          * created.
2357          */
2358         ret = bt_ctf_field_type_structure_add_field(packet_header_type,
2359                 packet_header_field_type, "should_fail");
2360         ok(ret < 0,
2361                 "Trace packet header type can't be modified once a stream has been instanciated");
2362
2363         /*
2364          * Try to modify the packet context type after a stream has been
2365          * created.
2366          */
2367         ret = bt_ctf_field_type_structure_add_field(packet_context_type,
2368                 packet_context_field_type, "should_fail");
2369         ok(ret < 0,
2370                 "Packet context type can't be modified once a stream has been instanciated");
2371
2372         /*
2373          * Try to modify the stream event context type after a stream has been
2374          * created.
2375          */
2376         ret = bt_ctf_field_type_structure_add_field(stream_event_context_type,
2377                 integer_type, "should_fail");
2378         ok(ret < 0,
2379                 "Stream event context type can't be modified once a stream has been instanciated");
2380
2381         /* Should fail after instanciating a stream (frozen) */
2382         ok(bt_ctf_stream_class_set_clock(stream_class, clock),
2383                 "Changes to a stream class that was already instantiated fail");
2384
2385         /* Populate the custom packet header field only once for all tests */
2386         ok(bt_ctf_stream_get_packet_header(NULL) == NULL,
2387                 "bt_ctf_stream_get_packet_header handles NULL correctly");
2388         packet_header = bt_ctf_stream_get_packet_header(stream1);
2389         ok(packet_header,
2390                 "bt_ctf_stream_get_packet_header returns a packet header");
2391         ret_field_type = bt_ctf_field_get_type(packet_header);
2392         ok(ret_field_type == packet_header_type,
2393                 "Stream returns a packet header of the appropriate type");
2394         bt_ctf_field_type_put(ret_field_type);
2395         packet_header_field = bt_ctf_field_structure_get_field(packet_header,
2396                 "custom_trace_packet_header_field");
2397         ok(packet_header_field,
2398                 "Packet header structure contains a custom field with the appropriate name");
2399         ret_field_type = bt_ctf_field_get_type(packet_header_field);
2400         ok(ret_field_type == packet_header_field_type,
2401                 "Custom packet header field is of the expected type");
2402         ok(!bt_ctf_field_unsigned_integer_set_value(packet_header_field,
2403                 54321), "Set custom packet header value successfully");
2404         ok(bt_ctf_stream_set_packet_header(stream1, NULL) < 0,
2405                 "bt_ctf_stream_set_packet_header handles a NULL packet header correctly");
2406         ok(bt_ctf_stream_set_packet_header(NULL, packet_header) < 0,
2407                 "bt_ctf_stream_set_packet_header handles a NULL stream correctly");
2408         ok(bt_ctf_stream_set_packet_header(stream1, packet_header_field) < 0,
2409                 "bt_ctf_stream_set_packet_header rejects a packet header of the wrong type");
2410         ok(!bt_ctf_stream_set_packet_header(stream1, packet_header),
2411                 "Successfully set a stream's packet header");
2412
2413         ok(bt_ctf_writer_add_environment_field(writer, "new_field", "test") == 0,
2414                 "Add environment field to writer after stream creation");
2415
2416         test_instanciate_event_before_stream(writer);
2417
2418         append_simple_event(stream_class, stream1, clock);
2419
2420         packet_resize_test(stream_class, stream1, clock);
2421
2422         append_complex_event(stream_class, stream1, clock);
2423
2424         append_existing_event_class(stream_class);
2425
2426         test_empty_stream(writer);
2427
2428         metadata_string = bt_ctf_writer_get_metadata_string(writer);
2429         ok(metadata_string, "Get metadata string");
2430
2431         bt_ctf_writer_flush_metadata(writer);
2432         validate_metadata(argv[1], metadata_path);
2433         validate_trace(argv[2], trace_path);
2434
2435         bt_ctf_clock_put(clock);
2436         bt_ctf_stream_class_put(ret_stream_class);
2437         bt_ctf_writer_put(writer);
2438         bt_ctf_stream_put(stream1);
2439         bt_ctf_field_type_put(packet_context_type);
2440         bt_ctf_field_type_put(packet_context_field_type);
2441         bt_ctf_field_type_put(integer_type);
2442         bt_ctf_field_type_put(stream_event_context_type);
2443         bt_ctf_field_type_put(ret_field_type);
2444         bt_ctf_field_type_put(packet_header_type);
2445         bt_ctf_field_type_put(packet_header_field_type);
2446         bt_ctf_field_put(packet_header);
2447         bt_ctf_field_put(packet_header_field);
2448         bt_ctf_trace_put(trace);
2449         free(metadata_string);
2450
2451         ok(bt_ctf_stream_class_get_trace(stream_class) == NULL,
2452                 "bt_ctf_stream_class_get_trace returns NULL after its trace has been reclaimed");
2453         bt_ctf_stream_class_put(stream_class);
2454
2455         /* Remove all trace files and delete temporary trace directory */
2456         DIR *trace_dir = opendir(trace_path);
2457         if (!trace_dir) {
2458                 perror("# opendir");
2459                 return -1;
2460         }
2461
2462         struct dirent *entry;
2463         while ((entry = readdir(trace_dir))) {
2464                 if (entry->d_type == DT_REG) {
2465                         unlinkat(dirfd(trace_dir), entry->d_name, 0);
2466                 }
2467         }
2468
2469         rmdir(trace_path);
2470         closedir(trace_dir);
2471         return 0;
2472 }