tests/lib/test_ctf_writer.c

   1 /*
   2  * test-ctf-writer.c
   3  *
   4  * CTF Writer test
   5  *
   6  * Copyright 2013 - 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/events.h>
  30 #include <unistd.h>
  31 #include <stdlib.h>
  32 #include <stdio.h>
  33 #include <sys/utsname.h>
  34 #include <limits.h>
  35 #include <string.h>
  36 #include <assert.h>
  37 #include <unistd.h>
  38 #include <sys/wait.h>
  39 #include <fcntl.h>
  40 #include <dirent.h>
  41 #include "tap/tap.h"
  42 #include <math.h>
  43 #include <float.h>
  44
  45 #define METADATA_LINE_SIZE 512
  46 #define SEQUENCE_TEST_LENGTH 10
  47 #define PACKET_RESIZE_TEST_LENGTH 100000
  48
  49 #define DEFAULT_CLOCK_FREQ 1000000000
  50 #define DEFAULT_CLOCK_PRECISION 1
  51 #define DEFAULT_CLOCK_OFFSET 0
  52 #define DEFAULT_CLOCK_OFFSET_S 0
  53 #define DEFAULT_CLOCK_IS_ABSOLUTE 0
  54 #define DEFAULT_CLOCK_TIME 0
  55
  56 static uint64_t current_time = 42;
  57
  58 void validate_metadata(char *parser_path, char *metadata_path)
  59 {
  60         int ret = 0;
  61         char parser_output_path[] = "/tmp/parser_output_XXXXXX";
  62         int parser_output_fd = -1, metadata_fd = -1;
  63
  64         if (!metadata_path) {
  65                 ret = -1;
  66                 goto result;
  67         }
  68
  69         parser_output_fd = mkstemp(parser_output_path);
  70         metadata_fd = open(metadata_path, O_RDONLY);
  71
  72         unlink(parser_output_path);
  73
  74         if (parser_output_fd == -1 || metadata_fd == -1) {
  75                 diag("Failed create temporary files for metadata parsing.");
  76                 ret = -1;
  77                 goto result;
  78         }
  79
  80         pid_t pid = fork();
  81         if (pid) {
  82                 int status = 0;
  83                 waitpid(pid, &status, 0);
  84                 ret = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
  85         } else {
  86                 /* ctf-parser-test expects a metadata string on stdin. */
  87                 ret = dup2(metadata_fd, STDIN_FILENO);
  88                 if (ret < 0) {
  89                         perror("# dup2 metadata_fd to STDIN");
  90                         goto result;
  91                 }
  92
  93                 ret = dup2(parser_output_fd, STDOUT_FILENO);
  94                 if (ret < 0) {
  95                         perror("# dup2 parser_output_fd to STDOUT");
  96                         goto result;
  97                 }
  98
  99                 ret = dup2(parser_output_fd, STDERR_FILENO);
 100                 if (ret < 0) {
 101                         perror("# dup2 parser_output_fd to STDERR");
 102                         goto result;
 103                 }
 104
 105                 execl(parser_path, "ctf-parser-test", NULL);
 106                 perror("# Could not launch the ctf metadata parser process");
 107                 exit(-1);
 108         }
 109 result:
 110         ok(ret == 0, "Metadata string is valid");
 111
 112         if (ret && metadata_fd >= 0 && parser_output_fd >= 0) {
 113                 char *line;
 114                 size_t len = METADATA_LINE_SIZE;
 115                 FILE *metadata_fp = NULL, *parser_output_fp = NULL;
 116
 117                 metadata_fp = fdopen(metadata_fd, "r");
 118                 if (!metadata_fp) {
 119                         perror("fdopen on metadata_fd");
 120                         goto close_fp;
 121                 }
 122                 metadata_fd = -1;
 123
 124                 parser_output_fp = fdopen(parser_output_fd, "r");
 125                 if (!parser_output_fp) {
 126                         perror("fdopen on parser_output_fd");
 127                         goto close_fp;
 128                 }
 129                 parser_output_fd = -1;
 130
 131                 line = malloc(len);
 132                 if (!line) {
 133                         diag("malloc failure");
 134                 }
 135
 136                 rewind(metadata_fp);
 137
 138                 /* Output the metadata and parser output as diagnostic */
 139                 while (getline(&line, &len, metadata_fp) > 0) {
 140                         diag("%s", line);
 141                 }
 142
 143                 rewind(parser_output_fp);
 144                 while (getline(&line, &len, parser_output_fp) > 0) {
 145                         diag("%s", line);
 146                 }
 147
 148                 free(line);
 149 close_fp:
 150                 if (metadata_fp) {
 151                         if (fclose(metadata_fp)) {
 152                                 diag("fclose failure");
 153                         }
 154                 }
 155                 if (parser_output_fp) {
 156                         if (fclose(parser_output_fp)) {
 157                                 diag("fclose failure");
 158                         }
 159                 }
 160         }
 161
 162         if (parser_output_fd >= 0) {
 163                 if (close(parser_output_fd)) {
 164                         diag("close error");
 165                 }
 166         }
 167         if (metadata_fd >= 0) {
 168                 if (close(metadata_fd)) {
 169                         diag("close error");
 170                 }
 171         }
 172 }
 173
 174 void validate_trace(char *parser_path, char *trace_path)
 175 {
 176         int ret = 0;
 177         char babeltrace_output_path[] = "/tmp/babeltrace_output_XXXXXX";
 178         int babeltrace_output_fd = -1;
 179
 180         if (!trace_path) {
 181                 ret = -1;
 182                 goto result;
 183         }
 184
 185         babeltrace_output_fd = mkstemp(babeltrace_output_path);
 186         unlink(babeltrace_output_path);
 187
 188         if (babeltrace_output_fd == -1) {
 189                 diag("Failed to create a temporary file for trace parsing.");
 190                 ret = -1;
 191                 goto result;
 192         }
 193
 194         pid_t pid = fork();
 195         if (pid) {
 196                 int status = 0;
 197                 waitpid(pid, &status, 0);
 198                 ret = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
 199         } else {
 200                 ret = dup2(babeltrace_output_fd, STDOUT_FILENO);
 201                 if (ret < 0) {
 202                         perror("# dup2 babeltrace_output_fd to STDOUT");
 203                         goto result;
 204                 }
 205
 206                 ret = dup2(babeltrace_output_fd, STDERR_FILENO);
 207                 if (ret < 0) {
 208                         perror("# dup2 babeltrace_output_fd to STDERR");
 209                         goto result;
 210                 }
 211
 212                 execl(parser_path, "babeltrace", trace_path, NULL);
 213                 perror("# Could not launch the babeltrace process");
 214                 exit(-1);
 215         }
 216 result:
 217         ok(ret == 0, "Babeltrace could read the resulting trace");
 218
 219         if (ret && babeltrace_output_fd >= 0) {
 220                 char *line;
 221                 size_t len = METADATA_LINE_SIZE;
 222                 FILE *babeltrace_output_fp = NULL;
 223
 224                 babeltrace_output_fp = fdopen(babeltrace_output_fd, "r");
 225                 if (!babeltrace_output_fp) {
 226                         perror("fdopen on babeltrace_output_fd");
 227                         goto close_fp;
 228                 }
 229                 babeltrace_output_fd = -1;
 230
 231                 line = malloc(len);
 232                 if (!line) {
 233                         diag("malloc error");
 234                 }
 235                 rewind(babeltrace_output_fp);
 236                 while (getline(&line, &len, babeltrace_output_fp) > 0) {
 237                         diag("%s", line);
 238                 }
 239
 240                 free(line);
 241 close_fp:
 242                 if (babeltrace_output_fp) {
 243                         if (fclose(babeltrace_output_fp)) {
 244                                 diag("fclose error");
 245                         }
 246                 }
 247         }
 248
 249         if (babeltrace_output_fd >= 0) {
 250                 if (close(babeltrace_output_fd)) {
 251                         diag("close error");
 252                 }
 253         }
 254 }
 255
 256 void append_simple_event(struct bt_ctf_stream_class *stream_class,
 257                 struct bt_ctf_stream *stream, struct bt_ctf_clock *clock)
 258 {
 259         /* Create and add a simple event class */
 260         struct bt_ctf_event_class *simple_event_class =
 261                 bt_ctf_event_class_create("Simple Event");
 262         struct bt_ctf_field_type *uint_12_type =
 263                 bt_ctf_field_type_integer_create(12);
 264         struct bt_ctf_field_type *float_type =
 265                 bt_ctf_field_type_floating_point_create();
 266         struct bt_ctf_field_type *enum_type =
 267                 bt_ctf_field_type_enumeration_create(uint_12_type);
 268         struct bt_ctf_event *simple_event;
 269         struct bt_ctf_field *integer_field;
 270         struct bt_ctf_field *float_field;
 271         struct bt_ctf_field *enum_field;
 272         struct bt_ctf_field *enum_container_field;
 273         const char *mapping_name_test = "truie";
 274         const char *mapping_name;
 275         const double double_test_value = 3.1415;
 276         double ret_double;
 277
 278         bt_ctf_field_type_set_alignment(float_type, 32);
 279         bt_ctf_field_type_floating_point_set_exponent_digits(float_type, 11);
 280         bt_ctf_field_type_floating_point_set_mantissa_digits(float_type, 53);
 281
 282         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 283                 "escaping; \"test\"", 0, 0) == 0,
 284                 "Accept enumeration mapping strings containing quotes");
 285         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 286                 "\tanother \'escaping\'\n test\"", 1, 4) == 0,
 287                 "Accept enumeration mapping strings containing special characters");
 288         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 289                 "event clock int float", 5, 22) == 0,
 290                 "Accept enumeration mapping strings containing reserved keywords");
 291         bt_ctf_field_type_enumeration_add_mapping(enum_type,
 292                 mapping_name_test, 42, 42);
 293         ok(bt_ctf_event_class_add_field(simple_event_class, enum_type,
 294                 "enum_field") == 0, "Add enumeration field to event");
 295
 296         ok(uint_12_type, "Create an unsigned integer type");
 297         bt_ctf_event_class_add_field(simple_event_class, uint_12_type,
 298                 "integer_field");
 299         bt_ctf_event_class_add_field(simple_event_class, float_type,
 300                 "float_field");
 301         bt_ctf_stream_class_add_event_class(stream_class,
 302                 simple_event_class);
 303
 304         simple_event = bt_ctf_event_create(simple_event_class);
 305
 306         ok(simple_event,
 307                 "Instantiate an event containing a single integer field");
 308
 309         integer_field = bt_ctf_field_create(uint_12_type);
 310         bt_ctf_field_unsigned_integer_set_value(integer_field, 42);
 311         ok(bt_ctf_event_set_payload(simple_event, "integer_field",
 312                 integer_field) == 0, "Use bt_ctf_event_set_payload to set a manually allocated field");
 313
 314         float_field = bt_ctf_event_get_payload(simple_event, "float_field");
 315         ok(bt_ctf_field_floating_point_get_value(float_field, &ret_double),
 316                 "bt_ctf_field_floating_point_get_value fails on an unset float field");
 317         bt_ctf_field_floating_point_set_value(float_field, double_test_value);
 318         ok(bt_ctf_field_floating_point_get_value(NULL, &ret_double),
 319                 "bt_ctf_field_floating_point_get_value properly handles a NULL field");
 320         ok(bt_ctf_field_floating_point_get_value(float_field, NULL),
 321                 "bt_ctf_field_floating_point_get_value properly handles a NULL return value pointer");
 322         ok(!bt_ctf_field_floating_point_get_value(float_field, &ret_double),
 323                 "bt_ctf_field_floating_point_get_value returns a double value");
 324         ok(fabs(ret_double - double_test_value) <= DBL_EPSILON,
 325                 "bt_ctf_field_floating_point_get_value returns a correct value");
 326
 327         enum_field = bt_ctf_field_create(enum_type);
 328         mapping_name = bt_ctf_field_enumeration_get_mapping_name(NULL);
 329         ok(!mapping_name, "bt_ctf_field_enumeration_get_mapping_name handles NULL correctly");
 330         mapping_name = bt_ctf_field_enumeration_get_mapping_name(enum_field);
 331         ok(!mapping_name, "bt_ctf_field_enumeration_get_mapping_name returns NULL if the enumeration's container field is unset");
 332         enum_container_field = bt_ctf_field_enumeration_get_container(
 333                 enum_field);
 334         ok(bt_ctf_field_unsigned_integer_set_value(
 335                 enum_container_field, 42) == 0,
 336                 "Set enumeration container value");
 337         mapping_name = bt_ctf_field_enumeration_get_mapping_name(enum_field);
 338         ok(!strcmp(mapping_name, mapping_name_test), "bt_ctf_field_enumeration_get_mapping_name returns the correct mapping name");
 339         bt_ctf_event_set_payload(simple_event, "enum_field", enum_field);
 340
 341         ok(bt_ctf_clock_set_time(clock, current_time) == 0, "Set clock time");
 342
 343         ok(bt_ctf_stream_append_event(stream, simple_event) == 0,
 344                 "Append simple event to trace stream");
 345
 346         ok(bt_ctf_stream_flush(stream) == 0,
 347                 "Flush trace stream with one event");
 348
 349         bt_ctf_event_class_put(simple_event_class);
 350         bt_ctf_event_put(simple_event);
 351         bt_ctf_field_type_put(uint_12_type);
 352         bt_ctf_field_type_put(float_type);
 353         bt_ctf_field_type_put(enum_type);
 354         bt_ctf_field_put(integer_field);
 355         bt_ctf_field_put(float_field);
 356         bt_ctf_field_put(enum_field);
 357         bt_ctf_field_put(enum_container_field);
 358 }
 359
 360 void append_complex_event(struct bt_ctf_stream_class *stream_class,
 361                 struct bt_ctf_stream *stream, struct bt_ctf_clock *clock)
 362 {
 363         int i;
 364         const char *test_string = "Test string";
 365         struct bt_ctf_field_type *uint_35_type =
 366                 bt_ctf_field_type_integer_create(35);
 367         struct bt_ctf_field_type *int_16_type =
 368                 bt_ctf_field_type_integer_create(16);
 369         struct bt_ctf_field_type *uint_3_type =
 370                 bt_ctf_field_type_integer_create(3);
 371         struct bt_ctf_field_type *enum_variant_type =
 372                 bt_ctf_field_type_enumeration_create(uint_3_type);
 373         struct bt_ctf_field_type *variant_type =
 374                 bt_ctf_field_type_variant_create(enum_variant_type,
 375                         "variant_selector");
 376         struct bt_ctf_field_type *string_type =
 377                 bt_ctf_field_type_string_create();
 378         struct bt_ctf_field_type *sequence_type;
 379         struct bt_ctf_field_type *inner_structure_type =
 380                 bt_ctf_field_type_structure_create();
 381         struct bt_ctf_field_type *complex_structure_type =
 382                 bt_ctf_field_type_structure_create();
 383         struct bt_ctf_event_class *event_class;
 384         struct bt_ctf_event *event;
 385         struct bt_ctf_field *uint_35_field, *int_16_field, *a_string_field,
 386                 *inner_structure_field, *complex_structure_field,
 387                 *a_sequence_field, *enum_variant_field, *enum_container_field,
 388                 *variant_field, *ret_field;
 389         int64_t ret_signed_int;
 390         uint64_t ret_unsigned_int;
 391         const char *ret_string;
 392
 393         bt_ctf_field_type_set_alignment(int_16_type, 32);
 394         bt_ctf_field_type_integer_set_signed(int_16_type, 1);
 395         bt_ctf_field_type_integer_set_base(uint_35_type,
 396                 BT_CTF_INTEGER_BASE_HEXADECIMAL);
 397
 398         sequence_type = bt_ctf_field_type_sequence_create(int_16_type,
 399                 "seq_len");
 400         bt_ctf_field_type_structure_add_field(inner_structure_type,
 401                 uint_35_type, "seq_len");
 402         bt_ctf_field_type_structure_add_field(inner_structure_type,
 403                 sequence_type, "a_sequence");
 404
 405         bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
 406                 "UINT3_TYPE", 0, 0);
 407         bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
 408                 "INT16_TYPE", 1, 1);
 409         bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
 410                 "UINT35_TYPE", 2, 7);
 411         ok(bt_ctf_field_type_variant_add_field(variant_type, uint_3_type,
 412                 "An unknown entry"), "Reject a variant field based on an unknown tag value");
 413         ok(bt_ctf_field_type_variant_add_field(variant_type, uint_3_type,
 414                 "UINT3_TYPE") == 0, "Add a field to a variant");
 415         bt_ctf_field_type_variant_add_field(variant_type, int_16_type,
 416                 "INT16_TYPE");
 417         bt_ctf_field_type_variant_add_field(variant_type, uint_35_type,
 418                 "UINT35_TYPE");
 419
 420         bt_ctf_field_type_structure_add_field(complex_structure_type,
 421                 enum_variant_type, "variant_selector");
 422         bt_ctf_field_type_structure_add_field(complex_structure_type,
 423                 string_type, "a_string");
 424         bt_ctf_field_type_structure_add_field(complex_structure_type,
 425                 variant_type, "variant_value");
 426         bt_ctf_field_type_structure_add_field(complex_structure_type,
 427                 inner_structure_type, "inner_structure");
 428
 429         ok(bt_ctf_event_class_create("clock") == NULL,
 430                 "Reject creation of an event class with an illegal name");
 431         event_class = bt_ctf_event_class_create("Complex Test Event");
 432         ok(event_class, "Create an event class");
 433         ok(bt_ctf_event_class_add_field(event_class, uint_35_type, ""),
 434                 "Reject addition of a field with an empty name to an event");
 435         ok(bt_ctf_event_class_add_field(event_class, NULL, "an_integer"),
 436                 "Reject addition of a field with a NULL type to an event");
 437         ok(bt_ctf_event_class_add_field(event_class, uint_35_type,
 438                 "int"),
 439                 "Reject addition of a type with an illegal name to an event");
 440         ok(bt_ctf_event_class_add_field(event_class, uint_35_type,
 441                 "uint_35") == 0,
 442                 "Add field of type unsigned integer to an event");
 443         ok(bt_ctf_event_class_add_field(event_class, int_16_type,
 444                 "int_16") == 0, "Add field of type signed integer to an event");
 445         ok(bt_ctf_event_class_add_field(event_class, complex_structure_type,
 446                 "complex_structure") == 0,
 447                 "Add composite structure to an event");
 448
 449         /* Add event class to the stream class */
 450         ok(bt_ctf_stream_class_add_event_class(stream_class, NULL),
 451                 "Reject addition of NULL event class to a stream class");
 452         ok(bt_ctf_stream_class_add_event_class(stream_class,
 453                 event_class) == 0, "Add an event class to stream class");
 454
 455         event = bt_ctf_event_create(event_class);
 456         ok(event, "Instanciate a complex event");
 457
 458         uint_35_field = bt_ctf_event_get_payload(event, "uint_35");
 459         if (!uint_35_field)
 460                 printf("uint_35_field is NULL\n");
 461         ok(uint_35_field, "Use bt_ctf_event_get_payload to get a field instance ");
 462         bt_ctf_field_unsigned_integer_set_value(uint_35_field, 0x0DDF00D);
 463         ok(bt_ctf_field_unsigned_integer_get_value(NULL, &ret_unsigned_int) == -1,
 464                 "bt_ctf_field_unsigned_integer_get_value properly properly handles a NULL field.");
 465         ok(bt_ctf_field_unsigned_integer_get_value(uint_35_field, NULL) == -1,
 466                 "bt_ctf_field_unsigned_integer_get_value properly handles a NULL return value");
 467         ok(bt_ctf_field_unsigned_integer_get_value(uint_35_field,
 468                 &ret_unsigned_int) == 0,
 469                 "bt_ctf_field_unsigned_integer_get_value succeeds after setting a value");
 470         ok(ret_unsigned_int == 0x0DDF00D,
 471                 "bt_ctf_field_unsigned_integer_get_value returns the correct value");
 472         ok(bt_ctf_field_signed_integer_get_value(uint_35_field,
 473                 &ret_signed_int) == -1,
 474                 "bt_ctf_field_signed_integer_get_value fails on an unsigned field");
 475         bt_ctf_field_put(uint_35_field);
 476
 477         int_16_field = bt_ctf_event_get_payload(event, "int_16");
 478         bt_ctf_field_signed_integer_set_value(int_16_field, -12345);
 479         ok(bt_ctf_field_signed_integer_get_value(NULL, &ret_signed_int) == -1,
 480                 "bt_ctf_field_signed_integer_get_value properly handles a NULL field");
 481         ok(bt_ctf_field_signed_integer_get_value(int_16_field, NULL) == -1,
 482                 "bt_ctf_field_signed_integer_get_value properly handles a NULL return value");
 483         ok(bt_ctf_field_signed_integer_get_value(int_16_field,
 484                 &ret_signed_int) == 0,
 485                 "bt_ctf_field_signed_integer_get_value succeeds after setting a value");
 486         ok(ret_signed_int == -12345,
 487                 "bt_ctf_field_signed_integer_get_value returns the correct value");
 488         ok(bt_ctf_field_unsigned_integer_get_value(int_16_field,
 489                 &ret_unsigned_int) == -1,
 490                 "bt_ctf_field_unsigned_integer_get_value fails on a signed field");
 491         bt_ctf_field_put(int_16_field);
 492
 493         complex_structure_field = bt_ctf_event_get_payload(event,
 494                 "complex_structure");
 495
 496         ok(bt_ctf_field_structure_get_field_by_index(NULL, 0) == NULL,
 497                 "bt_ctf_field_structure_get_field_by_index handles NULL correctly");
 498         ok(bt_ctf_field_structure_get_field_by_index(NULL, 9) == NULL,
 499                 "bt_ctf_field_structure_get_field_by_index handles an invalid index correctly");
 500         inner_structure_field = bt_ctf_field_structure_get_field_by_index(
 501                 complex_structure_field, 3);
 502         ret_field_type = bt_ctf_field_get_type(inner_structure_field);
 503         bt_ctf_field_put(inner_structure_field);
 504         ok(ret_field_type == inner_structure_type,
 505                 "bt_ctf_field_structure_get_field_by_index returns a correct field");
 506         bt_ctf_field_type_put(ret_field_type);
 507
 508         inner_structure_field = bt_ctf_field_structure_get_field(
 509                 complex_structure_field, "inner_structure");
 510         a_string_field = bt_ctf_field_structure_get_field(
 511                 complex_structure_field, "a_string");
 512         enum_variant_field = bt_ctf_field_structure_get_field(
 513                 complex_structure_field, "variant_selector");
 514         variant_field = bt_ctf_field_structure_get_field(
 515                 complex_structure_field, "variant_value");
 516         uint_35_field = bt_ctf_field_structure_get_field(
 517                 inner_structure_field, "seq_len");
 518         a_sequence_field = bt_ctf_field_structure_get_field(
 519                 inner_structure_field, "a_sequence");
 520
 521         enum_container_field = bt_ctf_field_enumeration_get_container(
 522                 enum_variant_field);
 523         bt_ctf_field_unsigned_integer_set_value(enum_container_field, 1);
 524         int_16_field = bt_ctf_field_variant_get_field(variant_field,
 525                 enum_variant_field);
 526         bt_ctf_field_signed_integer_set_value(int_16_field, -200);
 527         bt_ctf_field_put(int_16_field);
 528         ok(!bt_ctf_field_string_get_value(a_string_field),
 529                 "bt_ctf_field_string_get_value returns NULL on an unset field");
 530         bt_ctf_field_string_set_value(a_string_field,
 531                 test_string);
 532         ok(!bt_ctf_field_string_get_value(NULL),
 533                 "bt_ctf_field_string_get_value correctly handles NULL");
 534         ret_string = bt_ctf_field_string_get_value(a_string_field);
 535         ok(ret_string, "bt_ctf_field_string_get_value returns a string");
 536         ok(!strcmp(ret_string, test_string),
 537                 "bt_ctf_field_string_get_value returns a correct value");
 538         bt_ctf_field_unsigned_integer_set_value(uint_35_field,
 539                 SEQUENCE_TEST_LENGTH);
 540
 541         ok(bt_ctf_field_sequence_get_length(a_sequence_field) == NULL,
 542                 "bt_ctf_field_sequence_get_length returns NULL when length is unset");
 543         ok(bt_ctf_field_sequence_set_length(a_sequence_field,
 544                 uint_35_field) == 0, "Set a sequence field's length");
 545         ret_field = bt_ctf_field_sequence_get_length(a_sequence_field);
 546         ok(ret_field == uint_35_field,
 547                 "bt_ctf_field_sequence_get_length returns the correct length field");
 548         ok(bt_ctf_field_sequence_get_length(NULL) == NULL,
 549                 "bt_ctf_field_sequence_get_length properly handles NULL");
 550
 551         for (i = 0; i < SEQUENCE_TEST_LENGTH; i++) {
 552                 int_16_field = bt_ctf_field_sequence_get_field(
 553                         a_sequence_field, i);
 554                 bt_ctf_field_signed_integer_set_value(int_16_field, 4 - i);
 555                 bt_ctf_field_put(int_16_field);
 556         }
 557
 558         bt_ctf_clock_set_time(clock, ++current_time);
 559         ok(bt_ctf_stream_append_event(stream, event) == 0,
 560                 "Append a complex event to a stream");
 561         ok(bt_ctf_stream_flush(stream) == 0,
 562                 "Flush a stream containing a complex event");
 563
 564         bt_ctf_field_put(uint_35_field);
 565         bt_ctf_field_put(a_string_field);
 566         bt_ctf_field_put(inner_structure_field);
 567         bt_ctf_field_put(complex_structure_field);
 568         bt_ctf_field_put(a_sequence_field);
 569         bt_ctf_field_put(enum_variant_field);
 570         bt_ctf_field_put(enum_container_field);
 571         bt_ctf_field_put(variant_field);
 572         bt_ctf_field_put(ret_field);
 573         bt_ctf_field_type_put(uint_35_type);
 574         bt_ctf_field_type_put(int_16_type);
 575         bt_ctf_field_type_put(string_type);
 576         bt_ctf_field_type_put(sequence_type);
 577         bt_ctf_field_type_put(inner_structure_type);
 578         bt_ctf_field_type_put(complex_structure_type);
 579         bt_ctf_field_type_put(uint_3_type);
 580         bt_ctf_field_type_put(enum_variant_type);
 581         bt_ctf_field_type_put(variant_type);
 582         bt_ctf_event_class_put(event_class);
 583         bt_ctf_event_put(event);
 584 }
 585
 586 void type_field_tests()
 587 {
 588         struct bt_ctf_field *uint_12;
 589         struct bt_ctf_field *int_16;
 590         struct bt_ctf_field *string;
 591         struct bt_ctf_field *enumeration;
 592         struct bt_ctf_field_type *composite_structure_type;
 593         struct bt_ctf_field_type *structure_seq_type;
 594         struct bt_ctf_field_type *string_type;
 595         struct bt_ctf_field_type *sequence_type;
 596         struct bt_ctf_field_type *uint_8_type;
 597         struct bt_ctf_field_type *int_16_type;
 598         struct bt_ctf_field_type *uint_12_type =
 599                 bt_ctf_field_type_integer_create(12);
 600         struct bt_ctf_field_type *enumeration_type;
 601         struct bt_ctf_field_type *enumeration_sequence_type;
 602         struct bt_ctf_field_type *enumeration_array_type;
 603         struct bt_ctf_field_type *returned_type;
 604
 605         returned_type = bt_ctf_field_get_type(NULL);
 606         ok(!returned_type, "bt_ctf_field_get_type handles NULL correctly");
 607
 608         ok(uint_12_type, "Create an unsigned integer type");
 609         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
 610                 BT_CTF_INTEGER_BASE_BINARY) == 0,
 611                 "Set integer type's base as binary");
 612         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
 613                 BT_CTF_INTEGER_BASE_DECIMAL) == 0,
 614                 "Set integer type's base as decimal");
 615         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
 616                 BT_CTF_INTEGER_BASE_UNKNOWN),
 617                 "Reject integer type's base set as unknown");
 618         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
 619                 BT_CTF_INTEGER_BASE_OCTAL) == 0,
 620                 "Set integer type's base as octal");
 621         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
 622                 BT_CTF_INTEGER_BASE_HEXADECIMAL) == 0,
 623                 "Set integer type's base as hexadecimal");
 624         ok(bt_ctf_field_type_integer_set_base(uint_12_type, 457417),
 625                 "Reject unknown integer base value");
 626         ok(bt_ctf_field_type_integer_set_signed(uint_12_type, 952835) == 0,
 627                 "Set integer type signedness to signed");
 628         ok(bt_ctf_field_type_integer_set_signed(uint_12_type, 0) == 0,
 629                 "Set integer type signedness to unsigned");
 630
 631         int_16_type = bt_ctf_field_type_integer_create(16);
 632         bt_ctf_field_type_integer_set_signed(int_16_type, 1);
 633         uint_8_type = bt_ctf_field_type_integer_create(8);
 634         sequence_type =
 635                 bt_ctf_field_type_sequence_create(int_16_type, "seq_len");
 636         ok(sequence_type, "Create a sequence of int16_t type");
 637
 638         string_type = bt_ctf_field_type_string_create();
 639         ok(string_type, "Create a string type");
 640         ok(bt_ctf_field_type_string_set_encoding(string_type,
 641                 CTF_STRING_NONE),
 642                 "Reject invalid \"None\" string encoding");
 643         ok(bt_ctf_field_type_string_set_encoding(string_type,
 644                 42),
 645                 "Reject invalid string encoding");
 646         ok(bt_ctf_field_type_string_set_encoding(string_type,
 647                 CTF_STRING_ASCII) == 0,
 648                 "Set string encoding to ASCII");
 649
 650         structure_seq_type = bt_ctf_field_type_structure_create();
 651         ok(structure_seq_type, "Create a structure type");
 652         ok(bt_ctf_field_type_structure_add_field(structure_seq_type,
 653                 uint_8_type, "seq_len") == 0,
 654                 "Add a uint8_t type to a structure");
 655         ok(bt_ctf_field_type_structure_add_field(structure_seq_type,
 656                 sequence_type, "a_sequence") == 0,
 657                 "Add a sequence type to a structure");
 658         composite_structure_type = bt_ctf_field_type_structure_create();
 659         ok(bt_ctf_field_type_structure_add_field(composite_structure_type,
 660                 string_type, "a_string") == 0,
 661                 "Add a string type to a structure");
 662         ok(bt_ctf_field_type_structure_add_field(composite_structure_type,
 663                 structure_seq_type, "inner_structure") == 0,
 664                 "Add a structure type to a structure");
 665
 666         int_16 = bt_ctf_field_create(int_16_type);
 667         ok(int_16, "Instanciate a signed 16-bit integer");
 668         uint_12 = bt_ctf_field_create(uint_12_type);
 669         ok(uint_12, "Instanciate an unsigned 12-bit integer");
 670         returned_type = bt_ctf_field_get_type(int_16);
 671         ok(returned_type == int_16_type,
 672                 "bt_ctf_field_get_type returns the correct type");
 673         bt_ctf_field_type_put(returned_type);
 674
 675         /* Can't modify types after instanciating them */
 676         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
 677                 BT_CTF_INTEGER_BASE_DECIMAL),
 678                 "Check an integer type' base can't be modified after instanciation");
 679         ok(bt_ctf_field_type_integer_set_signed(uint_12_type, 0),
 680                 "Check an integer type's signedness can't be modified after instanciation");
 681
 682         /* Check signed property is checked */
 683         ok(bt_ctf_field_signed_integer_set_value(uint_12, -52),
 684                 "Check bt_ctf_field_signed_integer_set_value is not allowed on an unsigned integer");
 685         ok(bt_ctf_field_unsigned_integer_set_value(int_16, 42),
 686                 "Check bt_ctf_field_unsigned_integer_set_value is not allowed on a signed integer");
 687
 688         /* Check overflows are properly tested for */
 689         ok(bt_ctf_field_signed_integer_set_value(int_16, -32768) == 0,
 690                 "Check -32768 is allowed for a signed 16-bit integer");
 691         ok(bt_ctf_field_signed_integer_set_value(int_16, 32767) == 0,
 692                 "Check 32767 is allowed for a signed 16-bit integer");
 693         ok(bt_ctf_field_signed_integer_set_value(int_16, 32768),
 694                 "Check 32768 is not allowed for a signed 16-bit integer");
 695         ok(bt_ctf_field_signed_integer_set_value(int_16, -32769),
 696                 "Check -32769 is not allowed for a signed 16-bit integer");
 697         ok(bt_ctf_field_signed_integer_set_value(int_16, -42) == 0,
 698                 "Check -42 is allowed for a signed 16-bit integer");
 699
 700         ok(bt_ctf_field_unsigned_integer_set_value(uint_12, 4095) == 0,
 701                 "Check 4095 is allowed for an unsigned 12-bit integer");
 702         ok(bt_ctf_field_unsigned_integer_set_value(uint_12, 4096),
 703                 "Check 4096 is not allowed for a unsigned 12-bit integer");
 704         ok(bt_ctf_field_unsigned_integer_set_value(uint_12, 0) == 0,
 705                 "Check 0 is allowed for an unsigned 12-bit integer");
 706
 707         string = bt_ctf_field_create(string_type);
 708         ok(string, "Instanciate a string field");
 709         ok(bt_ctf_field_string_set_value(string, "A value") == 0,
 710                 "Set a string's value");
 711
 712         enumeration_type = bt_ctf_field_type_enumeration_create(uint_12_type);
 713         ok(enumeration_type,
 714                 "Create an enumeration type with an unsigned 12-bit integer as container");
 715         enumeration_sequence_type = bt_ctf_field_type_sequence_create(
 716                 enumeration_type, "count");
 717         ok(!enumeration_sequence_type,
 718                 "Check enumeration types are validated when creating a sequence");
 719         enumeration_array_type = bt_ctf_field_type_array_create(
 720                 enumeration_type, 10);
 721         ok(!enumeration_array_type,
 722                 "Check enumeration types are validated when creating an array");
 723         ok(bt_ctf_field_type_structure_add_field(composite_structure_type,
 724                 enumeration_type, "enumeration") == 0,
 725                 "Check enumeration types are validated when adding them as structure members");
 726         enumeration = bt_ctf_field_create(enumeration_type);
 727         ok(!enumeration,
 728                 "Check enumeration types are validated before instantiation");
 729
 730         bt_ctf_field_put(string);
 731         bt_ctf_field_put(uint_12);
 732         bt_ctf_field_put(int_16);
 733         bt_ctf_field_put(enumeration);
 734         bt_ctf_field_type_put(composite_structure_type);
 735         bt_ctf_field_type_put(structure_seq_type);
 736         bt_ctf_field_type_put(string_type);
 737         bt_ctf_field_type_put(sequence_type);
 738         bt_ctf_field_type_put(uint_8_type);
 739         bt_ctf_field_type_put(int_16_type);
 740         bt_ctf_field_type_put(uint_12_type);
 741         bt_ctf_field_type_put(enumeration_type);
 742         bt_ctf_field_type_put(enumeration_sequence_type);
 743         bt_ctf_field_type_put(enumeration_array_type);
 744 }
 745
 746 void packet_resize_test(struct bt_ctf_stream_class *stream_class,
 747                 struct bt_ctf_stream *stream, struct bt_ctf_clock *clock)
 748 {
 749         /*
 750          * Append enough events to force the underlying packet to be resized.
 751          * Also tests that a new event can be declared after a stream has been
 752          * instantiated and used/flushed.
 753          */
 754         int ret = 0;
 755         int i;
 756         struct bt_ctf_event_class *event_class = bt_ctf_event_class_create(
 757                 "Spammy_Event");
 758         struct bt_ctf_field_type *integer_type =
 759                 bt_ctf_field_type_integer_create(17);
 760         struct bt_ctf_field_type *string_type =
 761                 bt_ctf_field_type_string_create();
 762
 763         ret |= bt_ctf_event_class_add_field(event_class, integer_type,
 764                 "field_1");
 765         ret |= bt_ctf_event_class_add_field(event_class, string_type,
 766                 "a_string");
 767         ret |= bt_ctf_stream_class_add_event_class(stream_class, event_class);
 768         ok(ret == 0, "Add a new event class to a stream class after writing an event");
 769         if (ret) {
 770                 goto end;
 771         }
 772
 773         for (i = 0; i < PACKET_RESIZE_TEST_LENGTH; i++) {
 774                 struct bt_ctf_event *event = bt_ctf_event_create(event_class);
 775                 struct bt_ctf_field *integer =
 776                         bt_ctf_field_create(integer_type);
 777                 struct bt_ctf_field *string =
 778                         bt_ctf_field_create(string_type);
 779
 780                 ret |= bt_ctf_clock_set_time(clock, ++current_time);
 781                 ret |= bt_ctf_field_unsigned_integer_set_value(integer, i);
 782                 ret |= bt_ctf_event_set_payload(event, "field_1",
 783                         integer);
 784                 bt_ctf_field_put(integer);
 785                 ret |= bt_ctf_field_string_set_value(string, "This is a test");
 786                 ret |= bt_ctf_event_set_payload(event, "a_string",
 787                         string);
 788                 bt_ctf_field_put(string);
 789                 ret |= bt_ctf_stream_append_event(stream, event);
 790                 bt_ctf_event_put(event);
 791
 792                 if (ret) {
 793                         break;
 794                 }
 795         }
 796 end:
 797         ok(ret == 0, "Append 100 000 events to a stream");
 798         ok(bt_ctf_stream_flush(stream) == 0,
 799                 "Flush a stream that forces a packet resize");
 800         bt_ctf_field_type_put(integer_type);
 801         bt_ctf_field_type_put(string_type);
 802         bt_ctf_event_class_put(event_class);
 803 }
 804
 805 int main(int argc, char **argv)
 806 {
 807         char trace_path[] = "/tmp/ctfwriter_XXXXXX";
 808         char metadata_path[sizeof(trace_path) + 9];
 809         const char *clock_name = "test_clock";
 810         const char *clock_description = "This is a test clock";
 811         const char *returned_clock_name;
 812         const char *returned_clock_description;
 813         const uint64_t frequency = 1123456789;
 814         const uint64_t offset_s = 1351530929945824323;
 815         const uint64_t offset = 1234567;
 816         const uint64_t precision = 10;
 817         const int is_absolute = 0xFF;
 818         char *metadata_string;
 819         struct bt_ctf_writer *writer;
 820         struct utsname name;
 821         char hostname[HOST_NAME_MAX];
 822         struct bt_ctf_clock *clock;
 823         struct bt_ctf_stream_class *stream_class;
 824         struct bt_ctf_stream *stream1;
 825
 826         if (argc < 3) {
 827                 printf("Usage: tests-ctf-writer path_to_ctf_parser_test path_to_babeltrace\n");
 828                 exit(-1);
 829         }
 830
 831         plan_no_plan();
 832
 833         if (!mkdtemp(trace_path)) {
 834                 perror("# perror");
 835         }
 836
 837         strcpy(metadata_path, trace_path);
 838         strcat(metadata_path + sizeof(trace_path) - 1, "/metadata");
 839
 840         writer = bt_ctf_writer_create(trace_path);
 841         ok(writer, "bt_ctf_create succeeds in creating trace with path");
 842
 843         /* Add environment context to the trace */
 844         gethostname(hostname, HOST_NAME_MAX);
 845         ok(bt_ctf_writer_add_environment_field(writer, "host", hostname) == 0,
 846                 "Add host (%s) environment field to writer instance",
 847                 hostname);
 848         ok(bt_ctf_writer_add_environment_field(NULL, "test_field",
 849                 "test_value"),
 850                 "bt_ctf_writer_add_environment_field error with NULL writer");
 851         ok(bt_ctf_writer_add_environment_field(writer, NULL,
 852                 "test_value"),
 853                 "bt_ctf_writer_add_environment_field error with NULL field name");
 854         ok(bt_ctf_writer_add_environment_field(writer, "test_field",
 855                 NULL),
 856                 "bt_ctf_writer_add_environment_field error with NULL field value");
 857
 858         if (uname(&name)) {
 859                 perror("uname");
 860                 return -1;
 861         }
 862
 863         ok(bt_ctf_writer_add_environment_field(writer, "sysname", name.sysname)
 864                 == 0, "Add sysname (%s) environment field to writer instance",
 865                 name.sysname);
 866         ok(bt_ctf_writer_add_environment_field(writer, "nodename",
 867                 name.nodename) == 0,
 868                 "Add nodename (%s) environment field to writer instance",
 869                 name.nodename);
 870         ok(bt_ctf_writer_add_environment_field(writer, "release", name.release)
 871                 == 0, "Add release (%s) environment field to writer instance",
 872                 name.release);
 873         ok(bt_ctf_writer_add_environment_field(writer, "version", name.version)
 874                 == 0, "Add version (%s) environment field to writer instance",
 875                 name.version);
 876         ok(bt_ctf_writer_add_environment_field(writer, "machine", name.machine)
 877                 == 0, "Add machine (%s) environment field to writer istance",
 878                 name.machine);
 879
 880         /* Define a clock and add it to the trace */
 881         ok(bt_ctf_clock_create("signed") == NULL,
 882                 "Illegal clock name rejected");
 883         ok(bt_ctf_clock_create(NULL) == NULL, "NULL clock name rejected");
 884         clock = bt_ctf_clock_create(clock_name);
 885         ok(clock, "Clock created sucessfully");
 886         returned_clock_name = bt_ctf_clock_get_name(clock);
 887         ok(returned_clock_name, "bt_ctf_clock_get_name returns a clock name");
 888         ok(strcmp(returned_clock_name, clock_name) == 0,
 889                 "Returned clock name is valid");
 890
 891         returned_clock_description = bt_ctf_clock_get_description(clock);
 892         ok(!returned_clock_description, "bt_ctf_clock_get_description returns NULL on an unset description");
 893         ok(bt_ctf_clock_set_description(clock, clock_description) == 0,
 894                 "Clock description set successfully");
 895
 896         returned_clock_description = bt_ctf_clock_get_description(clock);
 897         ok(returned_clock_description,
 898                 "bt_ctf_clock_get_description returns a description.");
 899         ok(strcmp(returned_clock_description, clock_description) == 0,
 900                 "Returned clock description is valid");
 901
 902         ok(bt_ctf_clock_get_frequency(clock) == DEFAULT_CLOCK_FREQ,
 903                 "bt_ctf_clock_get_frequency returns the correct default frequency");
 904         ok(bt_ctf_clock_set_frequency(clock, frequency) == 0,
 905                 "Set clock frequency");
 906         ok(bt_ctf_clock_get_frequency(clock) == frequency,
 907                 "bt_ctf_clock_get_frequency returns the correct frequency once it is set");
 908
 909         ok(bt_ctf_clock_get_offset_s(clock) == DEFAULT_CLOCK_OFFSET_S,
 910                 "bt_ctf_clock_get_offset_s returns the correct default offset (in seconds)");
 911         ok(bt_ctf_clock_set_offset_s(clock, offset_s) == 0,
 912                 "Set clock offset (seconds)");
 913         ok(bt_ctf_clock_get_offset_s(clock) == offset_s,
 914                 "bt_ctf_clock_get_offset_s returns the correct default offset (in seconds) once it is set");
 915
 916         ok(bt_ctf_clock_get_offset(clock) == DEFAULT_CLOCK_OFFSET,
 917                 "bt_ctf_clock_get_frequency returns the correct default offset (in ticks)");
 918         ok(bt_ctf_clock_set_offset(clock, offset) == 0, "Set clock offset");
 919         ok(bt_ctf_clock_get_offset(clock) == offset,
 920                 "bt_ctf_clock_get_frequency returns the correct default offset (in ticks) once it is set");
 921
 922         ok(bt_ctf_clock_get_precision(clock) == DEFAULT_CLOCK_PRECISION,
 923                 "bt_ctf_clock_get_precision returns the correct default precision");
 924         ok(bt_ctf_clock_set_precision(clock, precision) == 0,
 925                 "Set clock precision");
 926         ok(bt_ctf_clock_get_precision(clock) == precision,
 927                 "bt_ctf_clock_get_precision returns the correct precision once it is set");
 928
 929         ok(bt_ctf_clock_get_is_absolute(clock) == DEFAULT_CLOCK_IS_ABSOLUTE,
 930                 "bt_ctf_clock_get_precision returns the correct default is_absolute attribute");
 931         ok(bt_ctf_clock_set_is_absolute(clock, is_absolute) == 0,
 932                 "Set clock absolute property");
 933         ok(bt_ctf_clock_get_is_absolute(clock) == !!is_absolute,
 934                 "bt_ctf_clock_get_precision returns the correct is_absolute attribute once it is set");
 935
 936         ok(bt_ctf_clock_get_time(clock) == DEFAULT_CLOCK_TIME,
 937                 "bt_ctf_clock_get_time returns the correct default time");
 938         ok(bt_ctf_clock_set_time(clock, current_time) == 0,
 939                 "Set clock time");
 940         ok(bt_ctf_clock_get_time(clock) == current_time,
 941                 "bt_ctf_clock_get_time returns the correct time once it is set");
 942
 943         ok(bt_ctf_writer_add_clock(writer, clock) == 0,
 944                 "Add clock to writer instance");
 945         ok(bt_ctf_writer_add_clock(writer, clock),
 946                 "Verify a clock can't be added twice to a writer instance");
 947
 948         ok(!bt_ctf_clock_get_name(NULL),
 949                 "bt_ctf_clock_get_name correctly handles NULL");
 950         ok(!bt_ctf_clock_get_description(NULL),
 951                 "bt_ctf_clock_get_description correctly handles NULL");
 952         ok(bt_ctf_clock_get_frequency(NULL) == -1ULL,
 953                 "bt_ctf_clock_get_frequency correctly handles NULL");
 954         ok(bt_ctf_clock_get_precision(NULL) == -1ULL,
 955                 "bt_ctf_clock_get_precision correctly handles NULL");
 956         ok(bt_ctf_clock_get_offset_s(NULL) == -1ULL,
 957                 "bt_ctf_clock_get_offset_s correctly handles NULL");
 958         ok(bt_ctf_clock_get_offset(NULL) == -1ULL,
 959                 "bt_ctf_clock_get_offset correctly handles NULL");
 960         ok(bt_ctf_clock_get_is_absolute(NULL) == -1,
 961                 "bt_ctf_clock_get_is_absolute correctly handles NULL");
 962         ok(bt_ctf_clock_get_time(NULL) == -1ULL,
 963                 "bt_ctf_clock_get_time correctly handles NULL");
 964
 965         ok(bt_ctf_clock_set_description(NULL, NULL) == -1,
 966                 "bt_ctf_clock_set_description correctly handles NULL clock");
 967         ok(bt_ctf_clock_set_frequency(NULL, frequency) == -1,
 968                 "bt_ctf_clock_set_frequency correctly handles NULL clock");
 969         ok(bt_ctf_clock_set_precision(NULL, precision) == -1,
 970                 "bt_ctf_clock_get_precision correctly handles NULL clock");
 971         ok(bt_ctf_clock_set_offset_s(NULL, offset_s) == -1,
 972                 "bt_ctf_clock_set_offset_s correctly handles NULL clock");
 973         ok(bt_ctf_clock_set_offset(NULL, offset) == -1,
 974                 "bt_ctf_clock_set_offset correctly handles NULL clock");
 975         ok(bt_ctf_clock_set_is_absolute(NULL, is_absolute) == -1,
 976                 "bt_ctf_clock_set_is_absolute correctly handles NULL clock");
 977         ok(bt_ctf_clock_set_time(NULL, current_time) == -1,
 978                 "bt_ctf_clock_set_time correctly handles NULL clock");
 979
 980         /* Define a stream class */
 981         stream_class = bt_ctf_stream_class_create("test_stream");
 982         ok(stream_class, "Create stream class");
 983         ok(bt_ctf_stream_class_set_clock(stream_class, clock) == 0,
 984                 "Set a stream class' clock");
 985
 986         /* Test the event fields and event types APIs */
 987         type_field_tests();
 988
 989         /* Instantiate a stream and append events */
 990         stream1 = bt_ctf_writer_create_stream(writer, stream_class);
 991         ok(stream1, "Instanciate a stream class from writer");
 992
 993         /* Should fail after instanciating a stream (locked)*/
 994         ok(bt_ctf_stream_class_set_clock(stream_class, clock),
 995                 "Changes to a stream class that was already instantiated fail");
 996
 997         append_simple_event(stream_class, stream1, clock);
 998
 999         packet_resize_test(stream_class, stream1, clock);
1000
1001         append_complex_event(stream_class, stream1, clock);
1002
1003         metadata_string = bt_ctf_writer_get_metadata_string(writer);
1004         ok(metadata_string, "Get metadata string");
1005
1006         bt_ctf_writer_flush_metadata(writer);
1007         validate_metadata(argv[1], metadata_path);
1008         validate_trace(argv[2], trace_path);
1009
1010         bt_ctf_clock_put(clock);
1011         bt_ctf_stream_class_put(stream_class);
1012         bt_ctf_writer_put(writer);
1013         bt_ctf_stream_put(stream1);
1014         free(metadata_string);
1015
1016         /* Remove all trace files and delete temporary trace directory */
1017         DIR *trace_dir = opendir(trace_path);
1018         if (!trace_dir) {
1019                 perror("# opendir");
1020                 return -1;
1021         }
1022
1023         struct dirent *entry;
1024         while ((entry = readdir(trace_dir))) {
1025                 if (entry->d_type == DT_REG) {
1026                         unlinkat(dirfd(trace_dir), entry->d_name, 0);
1027                 }
1028         }
1029
1030         rmdir(trace_path);
1031         closedir(trace_dir);
1032
1033         return 0;
1034 }