tests/lib/test_ctf_writer.c

   1 /*
   2  * test_ctf_writer.c
   3  *
   4  * CTF Writer test
   5  *
   6  * Copyright 2013 - 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; under version 2 of the License.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include <babeltrace/ctf-writer/writer.h>
  23 #include <babeltrace/ctf-writer/clock.h>
  24 #include <babeltrace/ctf-writer/stream.h>
  25 #include <babeltrace/ctf-writer/event.h>
  26 #include <babeltrace/ctf-writer/event-types.h>
  27 #include <babeltrace/ctf-writer/event-fields.h>
  28 #include <babeltrace/ctf-writer/stream-class.h>
  29 #include <babeltrace/ctf-ir/packet.h>
  30 #include <babeltrace/ctf-ir/clock-class.h>
  31 #include <babeltrace/ctf-ir/trace.h>
  32 #include <babeltrace/ref.h>
  33 #include <babeltrace/ctf/events.h>
  34 #include <babeltrace/values.h>
  35 #include <glib.h>
  36 #include <unistd.h>
  37 #include <babeltrace/compat/stdlib-internal.h>
  38 #include <stdio.h>
  39 #include <babeltrace/compat/limits-internal.h>
  40 #include <babeltrace/compat/stdio-internal.h>
  41 #include <string.h>
  42 #include <assert.h>
  43 #include <fcntl.h>
  44 #include "tap/tap.h"
  45 #include <math.h>
  46 #include <float.h>
  47 #include "common.h"
  48
  49 #define METADATA_LINE_SIZE 512
  50 #define SEQUENCE_TEST_LENGTH 10
  51 #define ARRAY_TEST_LENGTH 5
  52 #define PACKET_RESIZE_TEST_DEF_LENGTH 100000
  53
  54 #define DEFAULT_CLOCK_FREQ 1000000000
  55 #define DEFAULT_CLOCK_PRECISION 1
  56 #define DEFAULT_CLOCK_OFFSET 0
  57 #define DEFAULT_CLOCK_OFFSET_S 0
  58 #define DEFAULT_CLOCK_IS_ABSOLUTE 0
  59 #define DEFAULT_CLOCK_TIME 0
  60 #define DEFAULT_CLOCK_VALUE 0
  61
  62 #define NR_TESTS 623
  63
  64 struct bt_utsname {
  65         char sysname[BABELTRACE_HOST_NAME_MAX];
  66         char nodename[BABELTRACE_HOST_NAME_MAX];
  67         char release[BABELTRACE_HOST_NAME_MAX];
  68         char version[BABELTRACE_HOST_NAME_MAX];
  69         char machine[BABELTRACE_HOST_NAME_MAX];
  70 };
  71
  72 static int64_t current_time = 42;
  73 static unsigned int packet_resize_test_length = PACKET_RESIZE_TEST_DEF_LENGTH;
  74
  75 /* Return 1 if uuids match, zero if different. */
  76 static
  77 int uuid_match(const unsigned char *uuid_a, const unsigned char *uuid_b)
  78 {
  79         int ret = 0;
  80         int i;
  81
  82         if (!uuid_a || !uuid_b) {
  83                 goto end;
  84         }
  85
  86         for (i = 0; i < 16; i++) {
  87                 if (uuid_a[i] != uuid_b[i]) {
  88                         goto end;
  89                 }
  90         }
  91
  92         ret = 1;
  93 end:
  94         return ret;
  95 }
  96
  97 static
  98 void validate_trace(char *parser_path, char *trace_path)
  99 {
 100         int ret = 0;
 101         gchar *standard_error;
 102         gint exit_status;
 103         char *argv[] = {parser_path, trace_path, NULL};
 104
 105         if (!parser_path || !trace_path) {
 106                 ret = -1;
 107                 goto result;
 108         }
 109
 110         if (!g_spawn_sync(NULL,
 111                         argv,
 112                         NULL,
 113                         G_SPAWN_STDOUT_TO_DEV_NULL,
 114                         NULL,
 115                         NULL,
 116                         NULL,
 117                         &standard_error,
 118                         &exit_status,
 119                         NULL)) {
 120                 diag("Failed to spawn babeltrace.");
 121                 ret = -1;
 122                 goto result;
 123         }
 124
 125         if(!g_spawn_check_exit_status(exit_status, NULL)) {
 126                 diag("Babeltrace returned an error.");
 127                 diag_multiline(standard_error);
 128                 ret = -1;
 129                 goto result;
 130         }
 131
 132 result:
 133         ok(ret == 0, "Babeltrace could read the resulting trace");
 134         g_free(standard_error);
 135 }
 136
 137 static
 138 void append_simple_event(struct bt_ctf_stream_class *stream_class,
 139                 struct bt_ctf_stream *stream, struct bt_ctf_clock *clock)
 140 {
 141         /* Create and add a simple event class */
 142         struct bt_ctf_event_class *simple_event_class =
 143                 bt_ctf_event_class_create("Simple Event");
 144         struct bt_ctf_field_type *uint_12_type =
 145                 bt_ctf_field_type_integer_create(12);
 146         struct bt_ctf_field_type *int_64_type =
 147                 bt_ctf_field_type_integer_create(64);
 148         struct bt_ctf_field_type *float_type =
 149                 bt_ctf_field_type_floating_point_create();
 150         struct bt_ctf_field_type *enum_type;
 151         struct bt_ctf_field_type *enum_type_unsigned =
 152                 bt_ctf_field_type_enumeration_create(uint_12_type);
 153         struct bt_ctf_field_type *event_context_type =
 154                 bt_ctf_field_type_structure_create();
 155         struct bt_ctf_field_type *event_payload_type = NULL;
 156         struct bt_ctf_field_type *returned_type;
 157         struct bt_ctf_event *simple_event;
 158         struct bt_ctf_field *integer_field;
 159         struct bt_ctf_field *float_field;
 160         struct bt_ctf_field *enum_field;
 161         struct bt_ctf_field *enum_field_unsigned;
 162         struct bt_ctf_field *enum_container_field;
 163         const char *mapping_name_test = "truie";
 164         const double double_test_value = 3.1415;
 165         struct bt_ctf_field *enum_container_field_unsigned;
 166         const char *mapping_name_negative_test = "negative_value";
 167         const char *ret_char;
 168         double ret_double;
 169         int64_t ret_range_start_int64_t, ret_range_end_int64_t;
 170         uint64_t ret_range_start_uint64_t, ret_range_end_uint64_t;
 171         struct bt_ctf_event_class *ret_event_class;
 172         struct bt_ctf_field *packet_context;
 173         struct bt_ctf_field *packet_context_field;
 174         struct bt_ctf_field *stream_event_context;
 175         struct bt_ctf_field *stream_event_context_field;
 176         struct bt_ctf_field *event_context;
 177         struct bt_ctf_field *event_context_field;
 178         struct bt_ctf_field_type *ep_integer_field_type = NULL;
 179         struct bt_ctf_field_type *ep_enum_field_type = NULL;
 180         struct bt_ctf_field_type *ep_enum_field_unsigned_type = NULL;
 181         struct bt_ctf_field_type_enumeration_mapping_iterator *iter = NULL;
 182         int ret;
 183
 184         ok(uint_12_type, "Create an unsigned integer type");
 185
 186         ok(!bt_ctf_field_type_integer_set_signed(int_64_type, 1),
 187                 "Set signed 64 bit integer signedness to true");
 188         ok(int_64_type, "Create a signed integer type");
 189         enum_type = bt_ctf_field_type_enumeration_create(int_64_type);
 190
 191         returned_type = bt_ctf_field_type_enumeration_get_container_type(enum_type);
 192         ok(returned_type == int_64_type, "bt_ctf_field_type_enumeration_get_container_type returns the right type");
 193         ok(!bt_ctf_field_type_enumeration_get_container_type(NULL), "bt_ctf_field_type_enumeration_get_container_type handles NULL correctly");
 194         ok(!bt_ctf_field_type_enumeration_create(enum_type),
 195                 "bt_ctf_field_enumeration_type_create rejects non-integer container field types");
 196         bt_put(returned_type);
 197
 198         bt_ctf_field_type_set_alignment(float_type, 32);
 199         ok(bt_ctf_field_type_get_alignment(NULL) < 0,
 200                 "bt_ctf_field_type_get_alignment handles NULL correctly");
 201         ok(bt_ctf_field_type_get_alignment(float_type) == 32,
 202                 "bt_ctf_field_type_get_alignment returns a correct value");
 203
 204         ok(bt_ctf_field_type_floating_point_set_exponent_digits(float_type, 11) == 0,
 205                 "Set a floating point type's exponent digit count");
 206         ok(bt_ctf_field_type_floating_point_set_mantissa_digits(float_type, 53) == 0,
 207                 "Set a floating point type's mantissa digit count");
 208
 209         ok(bt_ctf_field_type_floating_point_get_exponent_digits(NULL) < 0,
 210                 "bt_ctf_field_type_floating_point_get_exponent_digits handles NULL properly");
 211         ok(bt_ctf_field_type_floating_point_get_mantissa_digits(NULL) < 0,
 212                 "bt_ctf_field_type_floating_point_get_mantissa_digits handles NULL properly");
 213         ok(bt_ctf_field_type_floating_point_get_exponent_digits(float_type) == 11,
 214                 "bt_ctf_field_type_floating_point_get_exponent_digits returns the correct value");
 215         ok(bt_ctf_field_type_floating_point_get_mantissa_digits(float_type) == 53,
 216                 "bt_ctf_field_type_floating_point_get_mantissa_digits returns the correct value");
 217
 218         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 219                 mapping_name_negative_test, -12345, 0) == 0,
 220                 "bt_ctf_field_type_enumeration_add_mapping accepts negative enumeration mappings");
 221         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 222                 "escaping; \"test\"", 1, 1) == 0,
 223                 "bt_ctf_field_type_enumeration_add_mapping accepts enumeration mapping strings containing quotes");
 224         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 225                 "\tanother \'escaping\'\n test\"", 2, 4) == 0,
 226                 "bt_ctf_field_type_enumeration_add_mapping accepts enumeration mapping strings containing special characters");
 227         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 228                 "event clock int float", 5, 22) == 0,
 229                 "Accept enumeration mapping strings containing reserved keywords");
 230         bt_ctf_field_type_enumeration_add_mapping(enum_type, mapping_name_test,
 231                 42, 42);
 232         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type, mapping_name_test,
 233                 43, 51) == 0, "bt_ctf_field_type_enumeration_add_mapping accepts duplicate mapping names");
 234         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type, "something",
 235                 -500, -400) == 0, "bt_ctf_field_type_enumeration_add_mapping accepts overlapping enum entries");
 236         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type, mapping_name_test,
 237                 -54, -55), "bt_ctf_field_type_enumeration_add_mapping rejects mapping where end < start");
 238         bt_ctf_field_type_enumeration_add_mapping(enum_type, "another entry", -42000, -13000);
 239
 240         iter = bt_ctf_field_type_enumeration_find_mappings_by_signed_value(NULL, -42);
 241         ok(iter == NULL, "bt_ctf_field_type_enumeration_find_mappings_by_signed_value handles a NULL field type correctly");
 242
 243         iter = bt_ctf_field_type_enumeration_find_mappings_by_signed_value(enum_type, -4200000);
 244         ok(iter == NULL, "bt_ctf_field_type_enumeration_find_mappings_by_signed_value rejects non-mapped values");
 245
 246         iter = bt_ctf_field_type_enumeration_find_mappings_by_signed_value(enum_type, 3);
 247         ok(iter != NULL, "bt_ctf_field_type_enumeration_find_mappings_by_signed_value succeeds with mapped value");
 248         ok(bt_ctf_field_type_enumeration_mapping_iterator_get_signed(iter, NULL, NULL, NULL) == 0,
 249                 "bt_ctf_field_type_enumeration_mapping_iterator_get_signed handles mapped values correctly");
 250         BT_PUT(iter);
 251
 252         ok(bt_ctf_event_class_add_field(simple_event_class, enum_type,
 253                 "enum_field") == 0, "Add signed enumeration field to event");
 254
 255         ok(bt_ctf_field_type_enumeration_get_mapping_signed(NULL, 0, &ret_char,
 256                 &ret_range_start_int64_t, &ret_range_end_int64_t) < 0,
 257                 "bt_ctf_field_type_enumeration_get_mapping_signed handles a NULL enumeration correctly");
 258         ok(bt_ctf_field_type_enumeration_get_mapping_signed(enum_type, 0, NULL,
 259                 &ret_range_start_int64_t, &ret_range_end_int64_t) == 0,
 260                 "bt_ctf_field_type_enumeration_get_mapping_signed handles a NULL string correctly");
 261         ok(bt_ctf_field_type_enumeration_get_mapping_signed(enum_type, 0, &ret_char,
 262                 NULL, &ret_range_end_int64_t) == 0,
 263                 "bt_ctf_field_type_enumeration_get_mapping_signed handles a NULL start correctly");
 264         ok(bt_ctf_field_type_enumeration_get_mapping_signed(enum_type, 0, &ret_char,
 265                 &ret_range_start_int64_t, NULL) == 0,
 266                 "bt_ctf_field_type_enumeration_get_mapping_signed handles a NULL end correctly");
 267         /* Assumes entries are sorted by range_start values. */
 268         ok(bt_ctf_field_type_enumeration_get_mapping_signed(enum_type, 6, &ret_char,
 269                 &ret_range_start_int64_t, &ret_range_end_int64_t) == 0,
 270                 "bt_ctf_field_type_enumeration_get_mapping_signed returns a value");
 271         ok(!strcmp(ret_char, mapping_name_test),
 272                 "bt_ctf_field_type_enumeration_get_mapping_signed returns a correct mapping name");
 273         ok(ret_range_start_int64_t == 42,
 274                 "bt_ctf_field_type_enumeration_get_mapping_signed returns a correct mapping start");
 275         ok(ret_range_end_int64_t == 42,
 276                 "bt_ctf_field_type_enumeration_get_mapping_signed returns a correct mapping end");
 277
 278         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned,
 279                 "escaping; \"test\"", 0, 0) == 0,
 280                 "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts enumeration mapping strings containing quotes");
 281         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned,
 282                 "\tanother \'escaping\'\n test\"", 1, 4) == 0,
 283                 "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts enumeration mapping strings containing special characters");
 284         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned,
 285                 "event clock int float", 5, 22) == 0,
 286                 "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts enumeration mapping strings containing reserved keywords");
 287         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, mapping_name_test,
 288                 42, 42) == 0, "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts single-value ranges");
 289         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, mapping_name_test,
 290                 43, 51) == 0, "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts duplicate mapping names");
 291         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, "something",
 292                 7, 8) == 0, "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts overlapping enum entries");
 293         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, mapping_name_test,
 294                 55, 54), "bt_ctf_field_type_enumeration_add_mapping_unsigned rejects mapping where end < start");
 295         ok(bt_ctf_event_class_add_field(simple_event_class, enum_type_unsigned,
 296                 "enum_field_unsigned") == 0, "Add unsigned enumeration field to event");
 297
 298         ok(bt_ctf_field_type_enumeration_get_mapping_count(NULL) < 0,
 299                 "bt_ctf_field_type_enumeration_get_mapping_count handles NULL correctly");
 300         ok(bt_ctf_field_type_enumeration_get_mapping_count(enum_type_unsigned) == 6,
 301                 "bt_ctf_field_type_enumeration_get_mapping_count returns the correct value");
 302
 303         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(NULL, 0, &ret_char,
 304                 &ret_range_start_uint64_t, &ret_range_end_uint64_t) < 0,
 305                 "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL enumeration correctly");
 306         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 0, NULL,
 307                 &ret_range_start_uint64_t, &ret_range_end_uint64_t) == 0,
 308                 "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL string correctly");
 309         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 0, &ret_char,
 310                 NULL, &ret_range_end_uint64_t) == 0,
 311                 "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL start correctly");
 312         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 0, &ret_char,
 313                 &ret_range_start_uint64_t, NULL) == 0,
 314                 "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL end correctly");
 315         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 4, &ret_char,
 316                 &ret_range_start_uint64_t, &ret_range_end_uint64_t) == 0,
 317                 "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a value");
 318         ok(!strcmp(ret_char, mapping_name_test),
 319                 "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a correct mapping name");
 320         ok(ret_range_start_uint64_t == 42,
 321                 "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a correct mapping start");
 322         ok(ret_range_end_uint64_t == 42,
 323                 "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a correct mapping end");
 324
 325         bt_ctf_event_class_add_field(simple_event_class, uint_12_type,
 326                 "integer_field");
 327         bt_ctf_event_class_add_field(simple_event_class, float_type,
 328                 "float_field");
 329
 330         assert(!bt_ctf_event_class_set_id(simple_event_class, 13));
 331
 332         /* Set an event context type which will contain a single integer. */
 333         ok(!bt_ctf_field_type_structure_add_field(event_context_type, uint_12_type,
 334                 "event_specific_context"),
 335                 "Add event specific context field");
 336         ok(bt_ctf_event_class_get_context_type(NULL) == NULL,
 337                 "bt_ctf_event_class_get_context_type handles NULL correctly");
 338
 339         ok(bt_ctf_event_class_set_context_type(NULL, event_context_type) < 0,
 340                 "bt_ctf_event_class_set_context_type handles a NULL event class correctly");
 341         ok(!bt_ctf_event_class_set_context_type(simple_event_class, event_context_type),
 342                 "Set an event class' context type successfully");
 343         returned_type = bt_ctf_event_class_get_context_type(simple_event_class);
 344         ok(returned_type == event_context_type,
 345                 "bt_ctf_event_class_get_context_type returns the appropriate type");
 346         bt_put(returned_type);
 347
 348         ok(!bt_ctf_stream_class_add_event_class(stream_class, simple_event_class),
 349                 "Adding simple event class to stream class");
 350
 351         /*
 352          * bt_ctf_stream_class_add_event_class() copies the field types
 353          * of simple_event_class, so we retrieve the new ones to create
 354          * the appropriate fields.
 355          */
 356         BT_PUT(event_context_type);
 357         BT_PUT(event_payload_type);
 358         event_payload_type = bt_ctf_event_class_get_payload_type(
 359                 simple_event_class);
 360         assert(event_payload_type);
 361         event_context_type = bt_ctf_event_class_get_context_type(
 362                 simple_event_class);
 363         assert(event_context_type);
 364         ep_integer_field_type =
 365                 bt_ctf_field_type_structure_get_field_type_by_name(
 366                         event_payload_type, "integer_field");
 367         assert(ep_integer_field_type);
 368         ep_enum_field_type =
 369                 bt_ctf_field_type_structure_get_field_type_by_name(
 370                         event_payload_type, "enum_field");
 371         assert(ep_enum_field_type);
 372         ep_enum_field_unsigned_type =
 373                 bt_ctf_field_type_structure_get_field_type_by_name(
 374                         event_payload_type, "enum_field_unsigned");
 375         assert(ep_enum_field_unsigned_type);
 376
 377         ok(bt_ctf_stream_class_get_event_class_count(NULL) < 0,
 378                 "bt_ctf_stream_class_get_event_class_count handles NULL correctly");
 379         ok(bt_ctf_stream_class_get_event_class_count(stream_class) == 1,
 380                 "bt_ctf_stream_class_get_event_class_count returns a correct number of event classes");
 381         ok(bt_ctf_stream_class_get_event_class_by_index(NULL, 0) == NULL,
 382                 "bt_ctf_stream_class_get_event_class handles NULL correctly");
 383         ok(bt_ctf_stream_class_get_event_class_by_index(stream_class, 8724) == NULL,
 384                 "bt_ctf_stream_class_get_event_class handles invalid indexes correctly");
 385         ret_event_class = bt_ctf_stream_class_get_event_class_by_index(stream_class, 0);
 386         ok(ret_event_class == simple_event_class,
 387                 "bt_ctf_stream_class_get_event_class returns the correct event class");
 388         bt_put(ret_event_class);
 389         ok(!bt_ctf_stream_class_get_event_class_by_id(NULL, 0),
 390                 "bt_ctf_stream_class_get_event_class_by_id handles NULL correctly");
 391         ok(!bt_ctf_stream_class_get_event_class_by_id(stream_class, 2),
 392                 "bt_ctf_stream_class_get_event_class_by_id returns NULL when the requested ID doesn't exist");
 393         ret_event_class =
 394                 bt_ctf_stream_class_get_event_class_by_id(stream_class, 13);
 395         ok(ret_event_class == simple_event_class,
 396                 "bt_ctf_stream_class_get_event_class_by_id returns a correct event class");
 397         bt_put(ret_event_class);
 398
 399         simple_event = bt_ctf_event_create(simple_event_class);
 400         ok(simple_event,
 401                 "Instantiate an event containing a single integer field");
 402
 403         integer_field = bt_ctf_field_create(ep_integer_field_type);
 404         bt_ctf_field_unsigned_integer_set_value(integer_field, 42);
 405         ok(bt_ctf_event_set_payload(simple_event, "integer_field",
 406                 integer_field) == 0, "Use bt_ctf_event_set_payload to set a manually allocated field");
 407
 408         float_field = bt_ctf_event_get_payload(simple_event, "float_field");
 409         ok(bt_ctf_field_floating_point_get_value(float_field, &ret_double),
 410                 "bt_ctf_field_floating_point_get_value fails on an unset float field");
 411         bt_ctf_field_floating_point_set_value(float_field, double_test_value);
 412         ok(bt_ctf_field_floating_point_get_value(NULL, &ret_double),
 413                 "bt_ctf_field_floating_point_get_value properly handles a NULL field");
 414         ok(bt_ctf_field_floating_point_get_value(float_field, NULL),
 415                 "bt_ctf_field_floating_point_get_value properly handles a NULL return value pointer");
 416         ok(!bt_ctf_field_floating_point_get_value(float_field, &ret_double),
 417                 "bt_ctf_field_floating_point_get_value returns a double value");
 418         ok(fabs(ret_double - double_test_value) <= DBL_EPSILON,
 419                 "bt_ctf_field_floating_point_get_value returns a correct value");
 420
 421         enum_field = bt_ctf_field_create(ep_enum_field_type);
 422         assert(enum_field);
 423
 424         iter = bt_ctf_field_enumeration_get_mappings(NULL);
 425         ok(!iter, "bt_ctf_field_enumeration_get_mappings handles NULL correctly");
 426         iter = bt_ctf_field_enumeration_get_mappings(enum_field);
 427         ok(!iter, "bt_ctf_field_enumeration_get_mappings returns NULL if the enumeration's container field is unset");
 428         enum_container_field = bt_ctf_field_enumeration_get_container(
 429                 enum_field);
 430         ok(bt_ctf_field_signed_integer_set_value(
 431                 enum_container_field, -42) == 0,
 432                 "Set signed enumeration container value");
 433         iter = bt_ctf_field_enumeration_get_mappings(enum_field);
 434         ok(iter, "bt_ctf_field_enumeration_get_mappings returns an iterator to matching mappings");
 435         ret = bt_ctf_field_type_enumeration_mapping_iterator_get_signed(iter, &ret_char, NULL, NULL);
 436         ok(!ret && ret_char, "bt_ctf_field_type_enumeration_mapping_iterator_get_signed return a mapping name");
 437         assert(ret_char);
 438         ok(!strcmp(ret_char, mapping_name_negative_test),
 439                 "bt_ctf_field_enumeration_get_single_mapping_name returns the correct mapping name with an signed container");
 440         ret = bt_ctf_event_set_payload(simple_event, "enum_field", enum_field);
 441         assert(!ret);
 442         BT_PUT(iter);
 443
 444         enum_field_unsigned = bt_ctf_field_create(ep_enum_field_unsigned_type);
 445         assert(enum_field_unsigned);
 446         enum_container_field_unsigned = bt_ctf_field_enumeration_get_container(
 447                 enum_field_unsigned);
 448         ok(bt_ctf_field_unsigned_integer_set_value(
 449                 enum_container_field_unsigned, 42) == 0,
 450                 "Set unsigned enumeration container value");
 451         ret = bt_ctf_event_set_payload(simple_event, "enum_field_unsigned",
 452                 enum_field_unsigned);
 453         assert(!ret);
 454         iter = bt_ctf_field_enumeration_get_mappings(enum_field_unsigned);
 455         assert(iter);
 456         (void) bt_ctf_field_type_enumeration_mapping_iterator_get_unsigned(iter, &ret_char, NULL, NULL);
 457         ok(ret_char && !strcmp(ret_char, mapping_name_test),
 458                 "bt_ctf_field_type_enumeration_mapping_iterator_get_unsigned returns the correct mapping name with an unsigned container");
 459
 460         ok(bt_ctf_clock_set_time(clock, current_time) == 0, "Set clock time");
 461
 462         /* Populate stream event context */
 463         stream_event_context =
 464                 bt_ctf_event_get_stream_event_context(simple_event);
 465         assert(stream_event_context);
 466         stream_event_context_field = bt_ctf_field_structure_get_field(
 467                 stream_event_context, "common_event_context");
 468         bt_ctf_field_unsigned_integer_set_value(stream_event_context_field, 42);
 469
 470         /* Populate the event's context */
 471         ok(bt_ctf_event_get_event_context(NULL) == NULL,
 472                 "bt_ctf_event_get_event_context handles NULL correctly");
 473         event_context = bt_ctf_event_get_event_context(simple_event);
 474         ok(event_context,
 475                 "bt_ctf_event_get_event_context returns a field");
 476         returned_type = bt_ctf_field_get_type(event_context);
 477         ok(returned_type == event_context_type,
 478                 "bt_ctf_event_get_event_context returns a field of the appropriate type");
 479         event_context_field = bt_ctf_field_structure_get_field(event_context,
 480                 "event_specific_context");
 481         ok(!bt_ctf_field_unsigned_integer_set_value(event_context_field, 1234),
 482                 "Successfully set an event context's value");
 483         ok(bt_ctf_event_set_event_context(NULL, event_context) < 0,
 484                 "bt_ctf_event_set_event_context handles a NULL event correctly");
 485         ok(bt_ctf_event_set_event_context(simple_event, NULL) < 0,
 486                 "bt_ctf_event_set_event_context handles a NULL event context correctly");
 487         ok(bt_ctf_event_set_event_context(simple_event, event_context_field) < 0,
 488                 "bt_ctf_event_set_event_context rejects a context of the wrong type");
 489         ok(!bt_ctf_event_set_event_context(simple_event, event_context),
 490                 "Set an event context successfully");
 491
 492         ok(bt_ctf_stream_append_event(stream, simple_event) == 0,
 493                 "Append simple event to trace stream");
 494
 495         ok(bt_ctf_stream_get_packet_context(NULL) == NULL,
 496                 "bt_ctf_stream_get_packet_context handles NULL correctly");
 497         packet_context = bt_ctf_stream_get_packet_context(stream);
 498         ok(packet_context,
 499                 "bt_ctf_stream_get_packet_context returns a packet context");
 500
 501         packet_context_field = bt_ctf_field_structure_get_field(packet_context,
 502                 "packet_size");
 503         ok(packet_context_field,
 504                 "Packet context contains the default packet_size field.");
 505         bt_put(packet_context_field);
 506         packet_context_field = bt_ctf_field_structure_get_field(packet_context,
 507                 "custom_packet_context_field");
 508         ok(bt_ctf_field_unsigned_integer_set_value(packet_context_field, 8) == 0,
 509                 "Custom packet context field value successfully set.");
 510
 511         ok(bt_ctf_stream_set_packet_context(NULL, packet_context_field) < 0,
 512                 "bt_ctf_stream_set_packet_context handles a NULL stream correctly");
 513         ok(bt_ctf_stream_set_packet_context(stream, NULL) < 0,
 514                 "bt_ctf_stream_set_packet_context handles a NULL packet context correctly");
 515         ok(bt_ctf_stream_set_packet_context(stream, packet_context) == 0,
 516                 "Successfully set a stream's packet context");
 517
 518         ok(bt_ctf_stream_flush(stream) == 0,
 519                 "Flush trace stream with one event");
 520
 521         bt_put(simple_event_class);
 522         bt_put(simple_event);
 523         bt_put(uint_12_type);
 524         bt_put(int_64_type);
 525         bt_put(float_type);
 526         bt_put(enum_type);
 527         bt_put(enum_type_unsigned);
 528         bt_put(returned_type);
 529         bt_put(event_context_type);
 530         bt_put(integer_field);
 531         bt_put(float_field);
 532         bt_put(enum_field);
 533         bt_put(enum_field_unsigned);
 534         bt_put(enum_container_field);
 535         bt_put(enum_container_field_unsigned);
 536         bt_put(packet_context);
 537         bt_put(packet_context_field);
 538         bt_put(stream_event_context);
 539         bt_put(stream_event_context_field);
 540         bt_put(event_context);
 541         bt_put(event_context_field);
 542         bt_put(event_payload_type);
 543         bt_put(ep_integer_field_type);
 544         bt_put(ep_enum_field_type);
 545         bt_put(ep_enum_field_unsigned_type);
 546         bt_put(iter);
 547 }
 548
 549 static
 550 void append_complex_event(struct bt_ctf_stream_class *stream_class,
 551                 struct bt_ctf_stream *stream, struct bt_ctf_clock *clock)
 552 {
 553         int i;
 554         struct event_class_attrs_counts ;
 555         const char *complex_test_event_string = "Complex Test Event";
 556         const char *test_string_1 = "Test ";
 557         const char *test_string_2 = "string ";
 558         const char *test_string_3 = "abcdefghi";
 559         const char *test_string_4 = "abcd\0efg\0hi";
 560         const char *test_string_cat = "Test string abcdeabcd";
 561         struct bt_ctf_field_type *uint_35_type =
 562                 bt_ctf_field_type_integer_create(35);
 563         struct bt_ctf_field_type *int_16_type =
 564                 bt_ctf_field_type_integer_create(16);
 565         struct bt_ctf_field_type *uint_3_type =
 566                 bt_ctf_field_type_integer_create(3);
 567         struct bt_ctf_field_type *enum_variant_type =
 568                 bt_ctf_field_type_enumeration_create(uint_3_type);
 569         struct bt_ctf_field_type *variant_type =
 570                 bt_ctf_field_type_variant_create(enum_variant_type,
 571                         "variant_selector");
 572         struct bt_ctf_field_type *string_type =
 573                 bt_ctf_field_type_string_create();
 574         struct bt_ctf_field_type *sequence_type;
 575         struct bt_ctf_field_type *array_type;
 576         struct bt_ctf_field_type *inner_structure_type =
 577                 bt_ctf_field_type_structure_create();
 578         struct bt_ctf_field_type *complex_structure_type =
 579                 bt_ctf_field_type_structure_create();
 580         struct bt_ctf_field_type *ret_field_type;
 581         struct bt_ctf_event_class *event_class;
 582         struct bt_ctf_event *event;
 583         struct bt_ctf_field *uint_35_field, *int_16_field, *a_string_field,
 584                 *inner_structure_field, *complex_structure_field,
 585                 *a_sequence_field, *enum_variant_field, *enum_container_field,
 586                 *variant_field, *an_array_field, *stream_event_ctx_field,
 587                 *stream_event_ctx_int_field, *ret_field;
 588         uint64_t ret_unsigned_int;
 589         int64_t ret_signed_int;
 590         const char *ret_string;
 591         struct bt_ctf_stream_class *ret_stream_class;
 592         struct bt_ctf_event_class *ret_event_class;
 593         struct bt_ctf_field *packet_context, *packet_context_field;
 594         struct bt_ctf_field_type_enumeration_mapping_iterator *iter = NULL;
 595
 596         ok(bt_ctf_field_type_set_alignment(int_16_type, 0),
 597                 "bt_ctf_field_type_set_alignment handles 0-alignment correctly");
 598         ok(bt_ctf_field_type_set_alignment(int_16_type, 3),
 599                 "bt_ctf_field_type_set_alignment handles wrong alignment correctly (3)");
 600         ok(bt_ctf_field_type_set_alignment(int_16_type, 24),
 601                 "bt_ctf_field_type_set_alignment handles wrong alignment correctly (24)");
 602         ok(!bt_ctf_field_type_set_alignment(int_16_type, 4),
 603                 "bt_ctf_field_type_set_alignment handles correct alignment correctly (4)");
 604         ok(!bt_ctf_field_type_set_alignment(int_16_type, 32),
 605                 "Set alignment of signed 16 bit integer to 32");
 606         ok(!bt_ctf_field_type_integer_set_signed(int_16_type, 1),
 607                 "Set integer signedness to true");
 608         ok(!bt_ctf_field_type_integer_set_base(uint_35_type,
 609                 BT_CTF_INTEGER_BASE_HEXADECIMAL),
 610                 "Set signed 16 bit integer base to hexadecimal");
 611
 612         array_type = bt_ctf_field_type_array_create(int_16_type, ARRAY_TEST_LENGTH);
 613         sequence_type = bt_ctf_field_type_sequence_create(int_16_type,
 614                 "seq_len");
 615
 616         ok(bt_ctf_field_type_array_get_element_type(NULL) == NULL,
 617                 "bt_ctf_field_type_array_get_element_type handles NULL correctly");
 618         ret_field_type = bt_ctf_field_type_array_get_element_type(
 619                 array_type);
 620         ok(ret_field_type == int_16_type,
 621                 "bt_ctf_field_type_array_get_element_type returns the correct type");
 622         bt_put(ret_field_type);
 623
 624         ok(bt_ctf_field_type_array_get_length(NULL) < 0,
 625                 "bt_ctf_field_type_array_get_length handles NULL correctly");
 626         ok(bt_ctf_field_type_array_get_length(array_type) == ARRAY_TEST_LENGTH,
 627                 "bt_ctf_field_type_array_get_length returns the correct length");
 628
 629         ok(bt_ctf_field_type_structure_add_field(inner_structure_type,
 630                 inner_structure_type, "yes"), "Cannot add self to structure");
 631         ok(!bt_ctf_field_type_structure_add_field(inner_structure_type,
 632                 uint_35_type, "seq_len"), "Add seq_len field to inner structure");
 633         ok(!bt_ctf_field_type_structure_add_field(inner_structure_type,
 634                 sequence_type, "a_sequence"), "Add a_sequence field to inner structure");
 635         ok(!bt_ctf_field_type_structure_add_field(inner_structure_type,
 636                 array_type, "an_array"), "Add an_array field to inner structure");
 637
 638         bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
 639                 "UINT3_TYPE", 0, 0);
 640         bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
 641                 "INT16_TYPE", 1, 1);
 642         bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
 643                 "UINT35_TYPE", 2, 7);
 644
 645         iter = bt_ctf_field_type_enumeration_find_mappings_by_name(NULL, "INT16_TYPE");
 646         ok(iter == NULL, "bt_ctf_field_type_enumeration_find_mappings_by_name handles a NULL field type correctly");
 647
 648         iter = bt_ctf_field_type_enumeration_find_mappings_by_name(enum_variant_type, "INT16_TYPE");
 649         ok(iter != NULL, "bt_ctf_field_type_enumeration_find_mappings_by_name handles an existing mapping correctly");
 650         ok(bt_ctf_field_type_enumeration_mapping_iterator_get_unsigned(iter, NULL, NULL, NULL) == 0,
 651                 "bt_ctf_field_type_enumeration_mapping_iterator_get_unsigned handles mapped values correctly");
 652         BT_PUT(iter);
 653
 654         iter = bt_ctf_field_type_enumeration_find_mappings_by_name(enum_variant_type, NULL);
 655         ok(iter == NULL, "bt_ctf_field_type_enumeration_find_mappings_by_name handles a NULL name correctly");
 656
 657         iter = bt_ctf_field_type_enumeration_find_mappings_by_unsigned_value(NULL, 1);
 658         ok(iter == NULL, "bt_ctf_field_type_enumeration_find_mappings_by_unsigned_value handles a NULL field type correctly");
 659
 660         iter = bt_ctf_field_type_enumeration_find_mappings_by_unsigned_value(enum_variant_type, -42);
 661         ok(iter == NULL, "bt_ctf_field_type_enumeration_find_mappings_by_unsigned_value handles invalid values correctly");
 662         ok(bt_ctf_field_type_enumeration_mapping_iterator_get_unsigned(iter, NULL, NULL, NULL) != 0,
 663                 "bt_ctf_field_type_enumeration_mapping_iterator_get_unsigned handles invalid values correctly");
 664         BT_PUT(iter);
 665
 666         iter = bt_ctf_field_type_enumeration_find_mappings_by_unsigned_value(enum_variant_type, 5);
 667         ok(iter != NULL, "bt_ctf_field_type_enumeration_find_mappings_by_unsigned_value handles valid values correctly");
 668         ok(bt_ctf_field_type_enumeration_mapping_iterator_get_unsigned(iter, NULL, NULL, NULL) == 0,
 669                 "bt_ctf_field_type_enumeration_mapping_iterator_get_unsigned handles valid values correctly");
 670         BT_PUT(iter);
 671
 672         ok(bt_ctf_field_type_variant_add_field(variant_type, uint_3_type,
 673                 "An unknown entry"), "Reject a variant field based on an unknown tag value");
 674         ok(bt_ctf_field_type_variant_add_field(variant_type, uint_3_type,
 675                 "UINT3_TYPE") == 0, "Add a field to a variant");
 676         ok(!bt_ctf_field_type_variant_add_field(variant_type, int_16_type,
 677                 "INT16_TYPE"), "Add INT16_TYPE field to variant");
 678         ok(!bt_ctf_field_type_variant_add_field(variant_type, uint_35_type,
 679                 "UINT35_TYPE"), "Add UINT35_TYPE field to variant");
 680
 681         ok(bt_ctf_field_type_variant_get_tag_type(NULL) == NULL,
 682                 "bt_ctf_field_type_variant_get_tag_type handles NULL correctly");
 683         ret_field_type = bt_ctf_field_type_variant_get_tag_type(variant_type);
 684         ok(ret_field_type == enum_variant_type,
 685                 "bt_ctf_field_type_variant_get_tag_type returns a correct tag type");
 686         bt_put(ret_field_type);
 687
 688         ok(bt_ctf_field_type_variant_get_tag_name(NULL) == NULL,
 689                 "bt_ctf_field_type_variant_get_tag_name handles NULL correctly");
 690         ret_string = bt_ctf_field_type_variant_get_tag_name(variant_type);
 691         ok(ret_string ? !strcmp(ret_string, "variant_selector") : 0,
 692                 "bt_ctf_field_type_variant_get_tag_name returns the correct variant tag name");
 693         ok(bt_ctf_field_type_variant_get_field_type_by_name(NULL,
 694                 "INT16_TYPE") == NULL,
 695                 "bt_ctf_field_type_variant_get_field_type_by_name handles a NULL variant_type correctly");
 696         ok(bt_ctf_field_type_variant_get_field_type_by_name(variant_type,
 697                 NULL) == NULL,
 698                 "bt_ctf_field_type_variant_get_field_type_by_name handles a NULL field name correctly");
 699         ret_field_type = bt_ctf_field_type_variant_get_field_type_by_name(
 700                 variant_type, "INT16_TYPE");
 701         ok(ret_field_type == int_16_type,
 702                 "bt_ctf_field_type_variant_get_field_type_by_name returns a correct field type");
 703         bt_put(ret_field_type);
 704
 705         ok(bt_ctf_field_type_variant_get_field_count(NULL) < 0,
 706                 "bt_ctf_field_type_variant_get_field_count handles NULL correctly");
 707         ok(bt_ctf_field_type_variant_get_field_count(variant_type) == 3,
 708                 "bt_ctf_field_type_variant_get_field_count returns the correct count");
 709
 710         ok(bt_ctf_field_type_variant_get_field(NULL, &ret_string, &ret_field_type, 0) < 0,
 711                 "bt_ctf_field_type_variant_get_field handles a NULL type correctly");
 712         ok(bt_ctf_field_type_variant_get_field(variant_type, NULL, &ret_field_type, 0) == 0,
 713                 "bt_ctf_field_type_variant_get_field handles a NULL field name correctly");
 714         bt_put(ret_field_type);
 715         ok(bt_ctf_field_type_variant_get_field(variant_type, &ret_string, NULL, 0) == 0,
 716                 "bt_ctf_field_type_variant_get_field handles a NULL field type correctly");
 717         ok(bt_ctf_field_type_variant_get_field(variant_type, &ret_string, &ret_field_type, 200) < 0,
 718                 "bt_ctf_field_type_variant_get_field handles an invalid index correctly");
 719         ok(bt_ctf_field_type_variant_get_field(variant_type, &ret_string, &ret_field_type, 1) == 0,
 720                 "bt_ctf_field_type_variant_get_field returns a field");
 721         ok(!strcmp("INT16_TYPE", ret_string),
 722                 "bt_ctf_field_type_variant_get_field returns a correct field name");
 723         ok(ret_field_type == int_16_type,
 724                 "bt_ctf_field_type_variant_get_field returns a correct field type");
 725         bt_put(ret_field_type);
 726
 727         ok(!bt_ctf_field_type_structure_add_field(complex_structure_type,
 728                 enum_variant_type, "variant_selector"),
 729                 "Add variant_selector field to complex structure");
 730         ok(!bt_ctf_field_type_structure_add_field(complex_structure_type,
 731                 string_type, "a_string"), "Add a_string field to complex structure");
 732         ok(!bt_ctf_field_type_structure_add_field(complex_structure_type,
 733                 variant_type, "variant_value"),
 734                 "Add variant_value field to complex structure");
 735         ok(!bt_ctf_field_type_structure_add_field(complex_structure_type,
 736                 inner_structure_type, "inner_structure"),
 737                 "Add inner_structure field to complex structure");
 738
 739         event_class = bt_ctf_event_class_create(complex_test_event_string);
 740         ok(event_class, "Create an event class");
 741         ok(bt_ctf_event_class_add_field(event_class, uint_35_type, ""),
 742                 "Reject addition of a field with an empty name to an event");
 743         ok(bt_ctf_event_class_add_field(event_class, NULL, "an_integer"),
 744                 "Reject addition of a field with a NULL type to an event");
 745         ok(bt_ctf_event_class_add_field(event_class, uint_35_type,
 746                 "int"),
 747                 "Reject addition of a type with an illegal name to an event");
 748         ok(bt_ctf_event_class_add_field(event_class, uint_35_type,
 749                 "uint_35") == 0,
 750                 "Add field of type unsigned integer to an event");
 751         ok(bt_ctf_event_class_add_field(event_class, int_16_type,
 752                 "int_16") == 0, "Add field of type signed integer to an event");
 753         ok(bt_ctf_event_class_add_field(event_class, complex_structure_type,
 754                 "complex_structure") == 0,
 755                 "Add composite structure to an event");
 756
 757         ok(bt_ctf_event_class_get_name(NULL) == NULL,
 758                 "bt_ctf_event_class_get_name handles NULL correctly");
 759         ret_string = bt_ctf_event_class_get_name(event_class);
 760         ok(!strcmp(ret_string, complex_test_event_string),
 761                 "bt_ctf_event_class_get_name returns a correct name");
 762         ok(bt_ctf_event_class_get_id(event_class) < 0,
 763                 "bt_ctf_event_class_get_id returns a negative value when not set");
 764         ok(bt_ctf_event_class_get_id(NULL) < 0,
 765                 "bt_ctf_event_class_get_id handles NULL correctly");
 766         ok(bt_ctf_event_class_set_id(NULL, 42) < 0,
 767                 "bt_ctf_event_class_set_id handles NULL correctly");
 768         ok(bt_ctf_event_class_set_id(event_class, 42) == 0,
 769                 "Set an event class' id");
 770         ok(bt_ctf_event_class_get_id(event_class) == 42,
 771                 "bt_ctf_event_class_get_id returns the correct value");
 772
 773         /* Test event class attributes */
 774         ok(bt_ctf_event_class_get_log_level(event_class) == BT_CTF_EVENT_CLASS_LOG_LEVEL_UNSPECIFIED,
 775                 "event class has the expected initial log level");
 776         ok(!bt_ctf_event_class_get_emf_uri(event_class),
 777                 "as expected, event class has no initial EMF URI");
 778         ok(bt_ctf_event_class_set_log_level(NULL, BT_CTF_EVENT_CLASS_LOG_LEVEL_INFO),
 779                 "bt_ctf_event_class_set_log_level handles a NULL event class correctly");
 780         ok(bt_ctf_event_class_set_log_level(event_class, BT_CTF_EVENT_CLASS_LOG_LEVEL_UNKNOWN),
 781                 "bt_ctf_event_class_set_log_level handles an unknown log level correctly");
 782         ok(!bt_ctf_event_class_set_log_level(event_class, BT_CTF_EVENT_CLASS_LOG_LEVEL_INFO),
 783                 "bt_ctf_event_class_set_log_level succeeds with a valid log level");
 784         ok(bt_ctf_event_class_get_log_level(NULL) == BT_CTF_EVENT_CLASS_LOG_LEVEL_UNKNOWN,
 785                 "bt_ctf_event_class_get_log_level handles a NULL event class correctly");
 786         ok(bt_ctf_event_class_get_log_level(event_class) == BT_CTF_EVENT_CLASS_LOG_LEVEL_INFO,
 787                 "bt_ctf_event_class_get_log_level returns the expected log level");
 788         ok(bt_ctf_event_class_set_emf_uri(NULL, "http://diamon.org/babeltrace/"),
 789                 "bt_ctf_event_class_set_emf_uri handles a NULL event class correctly");
 790         ok(!bt_ctf_event_class_set_emf_uri(event_class, "http://diamon.org/babeltrace/"),
 791                 "bt_ctf_event_class_set_emf_uri succeeds with a valid EMF URI");
 792         ok(!bt_ctf_event_class_get_emf_uri(NULL),
 793                 "bt_ctf_event_class_get_emf_uri handles a NULL event class correctly");
 794         ok(strcmp(bt_ctf_event_class_get_emf_uri(event_class), "http://diamon.org/babeltrace/") == 0,
 795                 "bt_ctf_event_class_get_emf_uri returns the expected EMF URI");
 796         ok(!bt_ctf_event_class_set_emf_uri(event_class, NULL),
 797                 "bt_ctf_event_class_set_emf_uri succeeds with NULL (to reset)");
 798         ok(!bt_ctf_event_class_get_emf_uri(event_class),
 799                 "as expected, event class has no EMF URI after reset");
 800
 801         /* Add event class to the stream class */
 802         ok(bt_ctf_stream_class_add_event_class(stream_class, NULL),
 803                 "Reject addition of NULL event class to a stream class");
 804         ok(bt_ctf_stream_class_add_event_class(stream_class,
 805                 event_class) == 0, "Add an event class to stream class");
 806
 807         ok(bt_ctf_event_class_get_stream_class(NULL) == NULL,
 808                 "bt_ctf_event_class_get_stream_class handles NULL correctly");
 809         ret_stream_class = bt_ctf_event_class_get_stream_class(event_class);
 810         ok(ret_stream_class == stream_class,
 811                 "bt_ctf_event_class_get_stream_class returns the correct stream class");
 812         bt_put(ret_stream_class);
 813
 814         ok(bt_ctf_event_class_get_payload_type_field_count(NULL) < 0,
 815                 "bt_ctf_event_class_get_field_count handles NULL correctly");
 816         ok(bt_ctf_event_class_get_payload_type_field_count(event_class) == 3,
 817                 "bt_ctf_event_class_get_field_count returns a correct value");
 818
 819         ok(bt_ctf_event_class_get_payload_type_field_by_index(NULL, &ret_string,
 820                 &ret_field_type, 0) < 0,
 821                 "bt_ctf_event_class_get_field handles a NULL event class correctly");
 822         ok(bt_ctf_event_class_get_payload_type_field_by_index(event_class, NULL,
 823                 &ret_field_type, 0) == 0,
 824                 "bt_ctf_event_class_get_field handles a NULL field name correctly");
 825         bt_put(ret_field_type);
 826         ok(bt_ctf_event_class_get_payload_type_field_by_index(event_class, &ret_string,
 827                 NULL, 0) == 0,
 828                 "bt_ctf_event_class_get_field handles a NULL field type correctly");
 829         ok(bt_ctf_event_class_get_payload_type_field_by_index(event_class, &ret_string,
 830                 &ret_field_type, 42) < 0,
 831                 "bt_ctf_event_class_get_field handles an invalid index correctly");
 832         ok(bt_ctf_event_class_get_payload_type_field_by_index(event_class, &ret_string,
 833                 &ret_field_type, 0) == 0,
 834                 "bt_ctf_event_class_get_field returns a field");
 835         ok(bt_ctf_field_type_compare(ret_field_type, uint_35_type) == 0,
 836                 "bt_ctf_event_class_get_field returns a correct field type");
 837         bt_put(ret_field_type);
 838         ok(!strcmp(ret_string, "uint_35"),
 839                 "bt_ctf_event_class_get_field returns a correct field name");
 840         ok(bt_ctf_event_class_get_field_by_name(NULL, "") == NULL,
 841                 "bt_ctf_event_class_get_field_by_name handles a NULL event class correctly");
 842         ok(bt_ctf_event_class_get_field_by_name(event_class, NULL) == NULL,
 843                 "bt_ctf_event_class_get_field_by_name handles a NULL field name correctly");
 844         ok(bt_ctf_event_class_get_field_by_name(event_class, "truie") == NULL,
 845                 "bt_ctf_event_class_get_field_by_name handles an invalid field name correctly");
 846         ret_field_type = bt_ctf_event_class_get_field_by_name(event_class,
 847                 "complex_structure");
 848         ok(bt_ctf_field_type_compare(ret_field_type, complex_structure_type) == 0,
 849                 "bt_ctf_event_class_get_field_by_name returns a correct field type");
 850         bt_put(ret_field_type);
 851
 852         event = bt_ctf_event_create(event_class);
 853         ok(event, "Instanciate a complex event");
 854
 855         ok(bt_ctf_event_get_class(NULL) == NULL,
 856                 "bt_ctf_event_get_class handles NULL correctly");
 857         ret_event_class = bt_ctf_event_get_class(event);
 858         ok(ret_event_class == event_class,
 859                 "bt_ctf_event_get_class returns the correct event class");
 860         bt_put(ret_event_class);
 861
 862         uint_35_field = bt_ctf_event_get_payload(event, "uint_35");
 863         if (!uint_35_field) {
 864                 printf("uint_35_field is NULL\n");
 865         }
 866
 867         ok(uint_35_field, "Use bt_ctf_event_get_payload to get a field instance ");
 868         bt_ctf_field_unsigned_integer_set_value(uint_35_field, 0x0DDF00D);
 869         ok(bt_ctf_field_unsigned_integer_get_value(NULL, &ret_unsigned_int) < 0,
 870                 "bt_ctf_field_unsigned_integer_get_value properly properly handles a NULL field.");
 871         ok(bt_ctf_field_unsigned_integer_get_value(uint_35_field, NULL) < 0,
 872                 "bt_ctf_field_unsigned_integer_get_value properly handles a NULL return value");
 873         ok(bt_ctf_field_unsigned_integer_get_value(uint_35_field,
 874                 &ret_unsigned_int) == 0,
 875                 "bt_ctf_field_unsigned_integer_get_value succeeds after setting a value");
 876         ok(ret_unsigned_int == 0x0DDF00D,
 877                 "bt_ctf_field_unsigned_integer_get_value returns the correct value");
 878         ok(bt_ctf_field_signed_integer_get_value(uint_35_field,
 879                 &ret_signed_int) < 0,
 880                 "bt_ctf_field_signed_integer_get_value fails on an unsigned field");
 881         bt_put(uint_35_field);
 882
 883         int_16_field = bt_ctf_event_get_payload(event, "int_16");
 884         bt_ctf_field_signed_integer_set_value(int_16_field, -12345);
 885         ok(bt_ctf_field_signed_integer_get_value(NULL, &ret_signed_int) < 0,
 886                 "bt_ctf_field_signed_integer_get_value properly handles a NULL field");
 887         ok(bt_ctf_field_signed_integer_get_value(int_16_field, NULL) < 0,
 888                 "bt_ctf_field_signed_integer_get_value properly handles a NULL return value");
 889         ok(bt_ctf_field_signed_integer_get_value(int_16_field,
 890                 &ret_signed_int) == 0,
 891                 "bt_ctf_field_signed_integer_get_value succeeds after setting a value");
 892         ok(ret_signed_int == -12345,
 893                 "bt_ctf_field_signed_integer_get_value returns the correct value");
 894         ok(bt_ctf_field_unsigned_integer_get_value(int_16_field,
 895                 &ret_unsigned_int) < 0,
 896                 "bt_ctf_field_unsigned_integer_get_value fails on a signed field");
 897         bt_put(int_16_field);
 898
 899         complex_structure_field = bt_ctf_event_get_payload(event,
 900                 "complex_structure");
 901
 902         ok(bt_ctf_field_structure_get_field_by_index(NULL, 0) == NULL,
 903                 "bt_ctf_field_structure_get_field_by_index handles NULL correctly");
 904         ok(bt_ctf_field_structure_get_field_by_index(NULL, 9) == NULL,
 905                 "bt_ctf_field_structure_get_field_by_index handles an invalid index correctly");
 906         inner_structure_field = bt_ctf_field_structure_get_field_by_index(
 907                 complex_structure_field, 3);
 908         ret_field_type = bt_ctf_field_get_type(inner_structure_field);
 909         bt_put(inner_structure_field);
 910         ok(bt_ctf_field_type_compare(ret_field_type, inner_structure_type) == 0,
 911                 "bt_ctf_field_structure_get_field_by_index returns a correct field");
 912         bt_put(ret_field_type);
 913
 914         inner_structure_field = bt_ctf_field_structure_get_field(
 915                 complex_structure_field, "inner_structure");
 916         a_string_field = bt_ctf_field_structure_get_field(
 917                 complex_structure_field, "a_string");
 918         enum_variant_field = bt_ctf_field_structure_get_field(
 919                 complex_structure_field, "variant_selector");
 920         variant_field = bt_ctf_field_structure_get_field(
 921                 complex_structure_field, "variant_value");
 922         uint_35_field = bt_ctf_field_structure_get_field(
 923                 inner_structure_field, "seq_len");
 924         a_sequence_field = bt_ctf_field_structure_get_field(
 925                 inner_structure_field, "a_sequence");
 926         an_array_field = bt_ctf_field_structure_get_field(
 927                 inner_structure_field, "an_array");
 928
 929         enum_container_field = bt_ctf_field_enumeration_get_container(
 930                 enum_variant_field);
 931         bt_ctf_field_unsigned_integer_set_value(enum_container_field, 1);
 932         int_16_field = bt_ctf_field_variant_get_field(variant_field,
 933                 enum_variant_field);
 934         bt_ctf_field_signed_integer_set_value(int_16_field, -200);
 935         bt_put(int_16_field);
 936         ok(!bt_ctf_field_string_get_value(a_string_field),
 937                 "bt_ctf_field_string_get_value returns NULL on an unset field");
 938         bt_ctf_field_string_set_value(a_string_field,
 939                 test_string_1);
 940         ok(!bt_ctf_field_string_get_value(NULL),
 941                 "bt_ctf_field_string_get_value correctly handles NULL");
 942         ok(bt_ctf_field_string_append(NULL, "yeah"),
 943                 "bt_ctf_field_string_append correctly handles a NULL string field");
 944         ok(bt_ctf_field_string_append(a_string_field, NULL),
 945                 "bt_ctf_field_string_append correctly handles a NULL string value");
 946         ok(!bt_ctf_field_string_append(a_string_field, test_string_2),
 947                 "bt_ctf_field_string_append succeeds");
 948         ok(bt_ctf_field_string_append_len(NULL, "oh noes", 3),
 949                 "bt_ctf_field_string_append_len correctly handles a NULL string field");
 950         ok(bt_ctf_field_string_append_len(a_string_field, NULL, 3),
 951                 "bt_ctf_field_string_append_len correctly handles a NULL string value");
 952         ok(!bt_ctf_field_string_append_len(a_string_field, test_string_3, 5),
 953                 "bt_ctf_field_string_append_len succeeds (append 5 characters)");
 954         ok(!bt_ctf_field_string_append_len(a_string_field, test_string_4, 10),
 955                 "bt_ctf_field_string_append_len succeeds (append 4 characters)");
 956         ok(!bt_ctf_field_string_append_len(a_string_field, &test_string_4[4], 3),
 957                 "bt_ctf_field_string_append_len succeeds (append 0 characters)");
 958         ok(!bt_ctf_field_string_append_len(a_string_field, test_string_3, 0),
 959                 "bt_ctf_field_string_append_len succeeds (append 0 characters)");
 960
 961         ret_string = bt_ctf_field_string_get_value(a_string_field);
 962         ok(ret_string, "bt_ctf_field_string_get_value returns a string");
 963         ok(ret_string ? !strcmp(ret_string, test_string_cat) : 0,
 964                 "bt_ctf_field_string_get_value returns a correct value");
 965         bt_ctf_field_unsigned_integer_set_value(uint_35_field,
 966                 SEQUENCE_TEST_LENGTH);
 967
 968         ok(bt_ctf_field_type_variant_get_field_type_from_tag(NULL,
 969                 enum_container_field) == NULL,
 970                 "bt_ctf_field_type_variant_get_field_type_from_tag handles a NULL variant type correctly");
 971         ok(bt_ctf_field_type_variant_get_field_type_from_tag(variant_type,
 972                 NULL) == NULL,
 973                 "bt_ctf_field_type_variant_get_field_type_from_tag handles a NULL tag correctly");
 974         ret_field_type = bt_ctf_field_type_variant_get_field_type_from_tag(
 975                 variant_type, enum_variant_field);
 976         ok(ret_field_type == int_16_type,
 977                 "bt_ctf_field_type_variant_get_field_type_from_tag returns the correct field type");
 978
 979         ok(bt_ctf_field_sequence_get_length(a_sequence_field) == NULL,
 980                 "bt_ctf_field_sequence_get_length returns NULL when length is unset");
 981         ok(bt_ctf_field_sequence_set_length(a_sequence_field,
 982                 uint_35_field) == 0, "Set a sequence field's length");
 983         ret_field = bt_ctf_field_sequence_get_length(a_sequence_field);
 984         ok(ret_field == uint_35_field,
 985                 "bt_ctf_field_sequence_get_length returns the correct length field");
 986         ok(bt_ctf_field_sequence_get_length(NULL) == NULL,
 987                 "bt_ctf_field_sequence_get_length properly handles NULL");
 988
 989         for (i = 0; i < SEQUENCE_TEST_LENGTH; i++) {
 990                 int_16_field = bt_ctf_field_sequence_get_field(
 991                         a_sequence_field, i);
 992                 bt_ctf_field_signed_integer_set_value(int_16_field, 4 - i);
 993                 bt_put(int_16_field);
 994         }
 995
 996         for (i = 0; i < ARRAY_TEST_LENGTH; i++) {
 997                 int_16_field = bt_ctf_field_array_get_field(
 998                         an_array_field, i);
 999                 bt_ctf_field_signed_integer_set_value(int_16_field, i);
1000                 bt_put(int_16_field);
1001         }
1002
1003         stream_event_ctx_field = bt_ctf_event_get_stream_event_context(event);
1004         assert(stream_event_ctx_field);
1005         stream_event_ctx_int_field = bt_ctf_field_structure_get_field(
1006                 stream_event_ctx_field, "common_event_context");
1007         BT_PUT(stream_event_ctx_field);
1008         bt_ctf_field_unsigned_integer_set_value(stream_event_ctx_int_field, 17);
1009         BT_PUT(stream_event_ctx_int_field);
1010
1011         bt_ctf_clock_set_time(clock, ++current_time);
1012         ok(bt_ctf_stream_append_event(stream, event) == 0,
1013                 "Append a complex event to a stream");
1014
1015         /*
1016          * Populate the custom packet context field with a dummy value
1017          * otherwise flush will fail.
1018          */
1019         packet_context = bt_ctf_stream_get_packet_context(stream);
1020         packet_context_field = bt_ctf_field_structure_get_field(packet_context,
1021                 "custom_packet_context_field");
1022         bt_ctf_field_unsigned_integer_set_value(packet_context_field, 1);
1023
1024         ok(bt_ctf_stream_flush(stream) == 0,
1025                 "Flush a stream containing a complex event");
1026
1027         bt_put(uint_35_field);
1028         bt_put(a_string_field);
1029         bt_put(inner_structure_field);
1030         bt_put(complex_structure_field);
1031         bt_put(a_sequence_field);
1032         bt_put(an_array_field);
1033         bt_put(enum_variant_field);
1034         bt_put(enum_container_field);
1035         bt_put(variant_field);
1036         bt_put(ret_field);
1037         bt_put(packet_context_field);
1038         bt_put(packet_context);
1039         bt_put(uint_35_type);
1040         bt_put(int_16_type);
1041         bt_put(string_type);
1042         bt_put(sequence_type);
1043         bt_put(array_type);
1044         bt_put(inner_structure_type);
1045         bt_put(complex_structure_type);
1046         bt_put(uint_3_type);
1047         bt_put(enum_variant_type);
1048         bt_put(variant_type);
1049         bt_put(ret_field_type);
1050         bt_put(event_class);
1051         bt_put(event);
1052 }
1053
1054 static
1055 void field_copy_tests_validate_same_type(struct bt_ctf_field *field,
1056                 struct bt_ctf_field_type *expected_type, const char *name)
1057 {
1058         struct bt_ctf_field_type *copy_type;
1059
1060         copy_type = bt_ctf_field_get_type(field);
1061         ok(copy_type == expected_type,
1062                 "bt_ctf_field_copy does not copy the type (%s)", name);
1063         bt_put(copy_type);
1064 }
1065
1066 static
1067 void field_copy_tests_validate_diff_ptrs(struct bt_ctf_field *field_a,
1068                 struct bt_ctf_field *field_b, const char *name)
1069 {
1070         ok(field_a != field_b,
1071                 "bt_ctf_field_copy creates different pointers (%s)", name);
1072 }
1073
1074 static
1075 void field_copy_tests()
1076 {
1077         struct bt_ctf_field_type *len_type = NULL;
1078         struct bt_ctf_field_type *fp_type = NULL;
1079         struct bt_ctf_field_type *s_type = NULL;
1080         struct bt_ctf_field_type *e_int_type = NULL;
1081         struct bt_ctf_field_type *e_type = NULL;
1082         struct bt_ctf_field_type *v_type = NULL;
1083         struct bt_ctf_field_type *v_label1_type = NULL;
1084         struct bt_ctf_field_type *v_label1_array_type = NULL;
1085         struct bt_ctf_field_type *v_label2_type = NULL;
1086         struct bt_ctf_field_type *v_label2_seq_type = NULL;
1087         struct bt_ctf_field_type *strct_type = NULL;
1088         struct bt_ctf_field *len = NULL;
1089         struct bt_ctf_field *fp = NULL;
1090         struct bt_ctf_field *s = NULL;
1091         struct bt_ctf_field *e_int = NULL;
1092         struct bt_ctf_field *e = NULL;
1093         struct bt_ctf_field *v = NULL;
1094         struct bt_ctf_field *v_selected = NULL;
1095         struct bt_ctf_field *v_selected_cur = NULL;
1096         struct bt_ctf_field *v_selected_0 = NULL;
1097         struct bt_ctf_field *v_selected_1 = NULL;
1098         struct bt_ctf_field *v_selected_2 = NULL;
1099         struct bt_ctf_field *v_selected_3 = NULL;
1100         struct bt_ctf_field *v_selected_4 = NULL;
1101         struct bt_ctf_field *v_selected_5 = NULL;
1102         struct bt_ctf_field *v_selected_6 = NULL;
1103         struct bt_ctf_field *a = NULL;
1104         struct bt_ctf_field *a_0 = NULL;
1105         struct bt_ctf_field *a_1 = NULL;
1106         struct bt_ctf_field *a_2 = NULL;
1107         struct bt_ctf_field *a_3 = NULL;
1108         struct bt_ctf_field *a_4 = NULL;
1109         struct bt_ctf_field *strct = NULL;
1110         struct bt_ctf_field *len_copy = NULL;
1111         struct bt_ctf_field *fp_copy = NULL;
1112         struct bt_ctf_field *s_copy = NULL;
1113         struct bt_ctf_field *e_int_copy = NULL;
1114         struct bt_ctf_field *e_copy = NULL;
1115         struct bt_ctf_field *v_copy = NULL;
1116         struct bt_ctf_field *v_selected_copy = NULL;
1117         struct bt_ctf_field *v_selected_copy_len = NULL;
1118         struct bt_ctf_field *v_selected_0_copy = NULL;
1119         struct bt_ctf_field *v_selected_1_copy = NULL;
1120         struct bt_ctf_field *v_selected_2_copy = NULL;
1121         struct bt_ctf_field *v_selected_3_copy = NULL;
1122         struct bt_ctf_field *v_selected_4_copy = NULL;
1123         struct bt_ctf_field *v_selected_5_copy = NULL;
1124         struct bt_ctf_field *v_selected_6_copy = NULL;
1125         struct bt_ctf_field *a_copy = NULL;
1126         struct bt_ctf_field *a_0_copy = NULL;
1127         struct bt_ctf_field *a_1_copy = NULL;
1128         struct bt_ctf_field *a_2_copy = NULL;
1129         struct bt_ctf_field *a_3_copy = NULL;
1130         struct bt_ctf_field *a_4_copy = NULL;
1131         struct bt_ctf_field *strct_copy = NULL;
1132         struct bt_ctf_field_type_enumeration_mapping_iterator *e_iter = NULL;
1133         uint64_t uint64_t_val;
1134         const char *str_val;
1135         double double_val;
1136         int ret;
1137
1138         /* create len type */
1139         len_type = bt_ctf_field_type_integer_create(32);
1140         assert(len_type);
1141
1142         /* create fp type */
1143         fp_type = bt_ctf_field_type_floating_point_create();
1144         assert(fp_type);
1145
1146         /* create s type */
1147         s_type = bt_ctf_field_type_string_create();
1148         assert(s_type);
1149
1150         /* create e_int type */
1151         e_int_type = bt_ctf_field_type_integer_create(8);
1152         assert(e_int_type);
1153
1154         /* create e type */
1155         e_type = bt_ctf_field_type_enumeration_create(e_int_type);
1156         assert(e_type);
1157         ret = bt_ctf_field_type_enumeration_add_mapping(e_type, "LABEL1",
1158                 10, 15);
1159         assert(!ret);
1160         ret = bt_ctf_field_type_enumeration_add_mapping(e_type, "LABEL2",
1161                 23, 23);
1162         assert(!ret);
1163
1164         /* create v_label1 type */
1165         v_label1_type = bt_ctf_field_type_string_create();
1166         assert(v_label1_type);
1167
1168         /* create v_label1_array type */
1169         v_label1_array_type = bt_ctf_field_type_array_create(v_label1_type, 5);
1170         assert(v_label1_array_type);
1171
1172         /* create v_label2 type */
1173         v_label2_type = bt_ctf_field_type_integer_create(16);
1174         assert(v_label2_type);
1175
1176         /* create v_label2_seq type */
1177         v_label2_seq_type = bt_ctf_field_type_sequence_create(v_label2_type,
1178                 "len");
1179         assert(v_label2_seq_type);
1180
1181         /* create v type */
1182         v_type = bt_ctf_field_type_variant_create(e_type, "e");
1183         assert(v_type);
1184         ret = bt_ctf_field_type_variant_add_field(v_type, v_label1_array_type,
1185                 "LABEL1");
1186         assert(!ret);
1187         ret = bt_ctf_field_type_variant_add_field(v_type, v_label2_seq_type,
1188                 "LABEL2");
1189         assert(!ret);
1190
1191         /* create strct type */
1192         strct_type = bt_ctf_field_type_structure_create();
1193         assert(strct_type);
1194         ret = bt_ctf_field_type_structure_add_field(strct_type, len_type,
1195                 "len");
1196         assert(!ret);
1197         ret = bt_ctf_field_type_structure_add_field(strct_type, fp_type, "fp");
1198         assert(!ret);
1199         ret = bt_ctf_field_type_structure_add_field(strct_type, s_type, "s");
1200         assert(!ret);
1201         ret = bt_ctf_field_type_structure_add_field(strct_type, e_type, "e");
1202         assert(!ret);
1203         ret = bt_ctf_field_type_structure_add_field(strct_type, v_type, "v");
1204         assert(!ret);
1205         ret = bt_ctf_field_type_structure_add_field(strct_type,
1206                 v_label1_array_type, "a");
1207         assert(!ret);
1208
1209         /* create strct */
1210         strct = bt_ctf_field_create(strct_type);
1211         assert(strct);
1212
1213         /* get len field */
1214         len = bt_ctf_field_structure_get_field(strct, "len");
1215         assert(len);
1216
1217         /* get fp field */
1218         fp = bt_ctf_field_structure_get_field(strct, "fp");
1219         assert(fp);
1220
1221         /* get s field */
1222         s = bt_ctf_field_structure_get_field(strct, "s");
1223         assert(s);
1224
1225         /* get e field */
1226         e = bt_ctf_field_structure_get_field(strct, "e");
1227         assert(e);
1228
1229         /* get e_int (underlying integer) */
1230         e_int = bt_ctf_field_enumeration_get_container(e);
1231         assert(e_int);
1232
1233         /* get v field */
1234         v = bt_ctf_field_structure_get_field(strct, "v");
1235         assert(v);
1236
1237         /* get a field */
1238         a = bt_ctf_field_structure_get_field(strct, "a");
1239         assert(a);
1240
1241         /* set len field */
1242         ret = bt_ctf_field_unsigned_integer_set_value(len, 7);
1243         assert(!ret);
1244
1245         /* set fp field */
1246         ret = bt_ctf_field_floating_point_set_value(fp, 3.14);
1247         assert(!ret);
1248
1249         /* set s field */
1250         ret = bt_ctf_field_string_set_value(s, "btbt");
1251         assert(!ret);
1252
1253         /* set e field (LABEL2) */
1254         ret = bt_ctf_field_unsigned_integer_set_value(e_int, 23);
1255         assert(!ret);
1256
1257         /* set v field */
1258         v_selected = bt_ctf_field_variant_get_field(v, e);
1259         assert(v_selected);
1260         ok(!bt_ctf_field_variant_get_current_field(NULL),
1261                 "bt_ctf_field_variant_get_current_field handles NULL correctly");
1262         v_selected_cur = bt_ctf_field_variant_get_current_field(v);
1263         ok(v_selected_cur == v_selected,
1264                 "bt_ctf_field_variant_get_current_field returns the current field");
1265         bt_put(v_selected_cur);
1266
1267         /* set selected v field */
1268         ret = bt_ctf_field_sequence_set_length(v_selected, len);
1269         assert(!ret);
1270         v_selected_0 = bt_ctf_field_sequence_get_field(v_selected, 0);
1271         assert(v_selected_0);
1272         ret = bt_ctf_field_unsigned_integer_set_value(v_selected_0, 7);
1273         assert(!ret);
1274         v_selected_1 = bt_ctf_field_sequence_get_field(v_selected, 1);
1275         assert(v_selected_1);
1276         ret = bt_ctf_field_unsigned_integer_set_value(v_selected_1, 6);
1277         assert(!ret);
1278         v_selected_2 = bt_ctf_field_sequence_get_field(v_selected, 2);
1279         assert(v_selected_2);
1280         ret = bt_ctf_field_unsigned_integer_set_value(v_selected_2, 5);
1281         assert(!ret);
1282         v_selected_3 = bt_ctf_field_sequence_get_field(v_selected, 3);
1283         assert(v_selected_3);
1284         ret = bt_ctf_field_unsigned_integer_set_value(v_selected_3, 4);
1285         assert(!ret);
1286         v_selected_4 = bt_ctf_field_sequence_get_field(v_selected, 4);
1287         assert(v_selected_4);
1288         ret = bt_ctf_field_unsigned_integer_set_value(v_selected_4, 3);
1289         assert(!ret);
1290         v_selected_5 = bt_ctf_field_sequence_get_field(v_selected, 5);
1291         assert(v_selected_5);
1292         ret = bt_ctf_field_unsigned_integer_set_value(v_selected_5, 2);
1293         assert(!ret);
1294         v_selected_6 = bt_ctf_field_sequence_get_field(v_selected, 6);
1295         assert(v_selected_6);
1296         ret = bt_ctf_field_unsigned_integer_set_value(v_selected_6, 1);
1297         assert(!ret);
1298
1299         /* set a field */
1300         a_0 = bt_ctf_field_array_get_field(a, 0);
1301         assert(a_0);
1302         ret = bt_ctf_field_string_set_value(a_0, "a_0");
1303         assert(!ret);
1304         a_1 = bt_ctf_field_array_get_field(a, 1);
1305         assert(a_1);
1306         ret = bt_ctf_field_string_set_value(a_1, "a_1");
1307         assert(!ret);
1308         a_2 = bt_ctf_field_array_get_field(a, 2);
1309         assert(a_2);
1310         ret = bt_ctf_field_string_set_value(a_2, "a_2");
1311         assert(!ret);
1312         a_3 = bt_ctf_field_array_get_field(a, 3);
1313         assert(a_3);
1314         ret = bt_ctf_field_string_set_value(a_3, "a_3");
1315         assert(!ret);
1316         a_4 = bt_ctf_field_array_get_field(a, 4);
1317         assert(a_4);
1318         ret = bt_ctf_field_string_set_value(a_4, "a_4");
1319         assert(!ret);
1320
1321         /* create copy of strct */
1322         ok(!bt_ctf_field_copy(NULL),
1323                 "bt_ctf_field_copy handles NULL correctly");
1324         strct_copy = bt_ctf_field_copy(strct);
1325         ok(strct_copy,
1326                 "bt_ctf_field_copy returns a valid pointer");
1327
1328         /* get all copied fields */
1329         len_copy = bt_ctf_field_structure_get_field(strct_copy, "len");
1330         assert(len_copy);
1331         fp_copy = bt_ctf_field_structure_get_field(strct_copy, "fp");
1332         assert(fp_copy);
1333         s_copy = bt_ctf_field_structure_get_field(strct_copy, "s");
1334         assert(s_copy);
1335         e_copy = bt_ctf_field_structure_get_field(strct_copy, "e");
1336         assert(e_copy);
1337         e_int_copy = bt_ctf_field_enumeration_get_container(e_copy);
1338         assert(e_int_copy);
1339         v_copy = bt_ctf_field_structure_get_field(strct_copy, "v");
1340         assert(v_copy);
1341         v_selected_copy = bt_ctf_field_variant_get_field(v_copy, e_copy);
1342         assert(v_selected_copy);
1343         v_selected_0_copy = bt_ctf_field_sequence_get_field(v_selected_copy, 0);
1344         assert(v_selected_0_copy);
1345         v_selected_1_copy = bt_ctf_field_sequence_get_field(v_selected_copy, 1);
1346         assert(v_selected_1_copy);
1347         v_selected_2_copy = bt_ctf_field_sequence_get_field(v_selected_copy, 2);
1348         assert(v_selected_2_copy);
1349         v_selected_3_copy = bt_ctf_field_sequence_get_field(v_selected_copy, 3);
1350         assert(v_selected_3_copy);
1351         v_selected_4_copy = bt_ctf_field_sequence_get_field(v_selected_copy, 4);
1352         assert(v_selected_4_copy);
1353         v_selected_5_copy = bt_ctf_field_sequence_get_field(v_selected_copy, 5);
1354         assert(v_selected_5_copy);
1355         v_selected_6_copy = bt_ctf_field_sequence_get_field(v_selected_copy, 6);
1356         assert(v_selected_6_copy);
1357         ok(!bt_ctf_field_sequence_get_field(v_selected_copy, 7),
1358                 "sequence field copy is not too large");
1359         a_copy = bt_ctf_field_structure_get_field(strct_copy, "a");
1360         assert(a_copy);
1361         a_0_copy = bt_ctf_field_array_get_field(a_copy, 0);
1362         assert(a_0_copy);
1363         a_1_copy = bt_ctf_field_array_get_field(a_copy, 1);
1364         assert(a_1_copy);
1365         a_2_copy = bt_ctf_field_array_get_field(a_copy, 2);
1366         assert(a_2_copy);
1367         a_3_copy = bt_ctf_field_array_get_field(a_copy, 3);
1368         assert(a_3_copy);
1369         a_4_copy = bt_ctf_field_array_get_field(a_copy, 4);
1370         assert(a_4_copy);
1371         ok(!bt_ctf_field_array_get_field(v_selected_copy, 5),
1372                 "array field copy is not too large");
1373
1374         /* make sure copied fields are different pointers */
1375         field_copy_tests_validate_diff_ptrs(strct_copy, strct, "strct");
1376         field_copy_tests_validate_diff_ptrs(len_copy, len, "len");
1377         field_copy_tests_validate_diff_ptrs(fp_copy, fp, "fp");
1378         field_copy_tests_validate_diff_ptrs(s_copy, s, "s");
1379         field_copy_tests_validate_diff_ptrs(e_int_copy, e_int, "e_int");
1380         field_copy_tests_validate_diff_ptrs(e_copy, e, "e");
1381         field_copy_tests_validate_diff_ptrs(v_copy, v, "v");
1382         field_copy_tests_validate_diff_ptrs(v_selected_copy, v_selected,
1383                 "v_selected");
1384         field_copy_tests_validate_diff_ptrs(v_selected_0_copy, v_selected_0,
1385                 "v_selected_0");
1386         field_copy_tests_validate_diff_ptrs(v_selected_1_copy, v_selected_1,
1387                 "v_selected_1");
1388         field_copy_tests_validate_diff_ptrs(v_selected_2_copy, v_selected_2,
1389                 "v_selected_2");
1390         field_copy_tests_validate_diff_ptrs(v_selected_3_copy, v_selected_3,
1391                 "v_selected_3");
1392         field_copy_tests_validate_diff_ptrs(v_selected_4_copy, v_selected_4,
1393                 "v_selected_4");
1394         field_copy_tests_validate_diff_ptrs(v_selected_5_copy, v_selected_5,
1395                 "v_selected_5");
1396         field_copy_tests_validate_diff_ptrs(v_selected_6_copy, v_selected_6,
1397                 "v_selected_6");
1398         field_copy_tests_validate_diff_ptrs(a_copy, a, "a");
1399         field_copy_tests_validate_diff_ptrs(a_0_copy, a_0, "a_0");
1400         field_copy_tests_validate_diff_ptrs(a_1_copy, a_1, "a_1");
1401         field_copy_tests_validate_diff_ptrs(a_2_copy, a_2, "a_2");
1402         field_copy_tests_validate_diff_ptrs(a_3_copy, a_3, "a_3");
1403         field_copy_tests_validate_diff_ptrs(a_4_copy, a_4, "a_4");
1404
1405         /* make sure copied fields share the same types */
1406         field_copy_tests_validate_same_type(strct_copy, strct_type, "strct");
1407         field_copy_tests_validate_same_type(len_copy, len_type, "len");
1408         field_copy_tests_validate_same_type(fp_copy, fp_type, "fp");
1409         field_copy_tests_validate_same_type(e_int_copy, e_int_type, "e_int");
1410         field_copy_tests_validate_same_type(e_copy, e_type, "e");
1411         field_copy_tests_validate_same_type(v_copy, v_type, "v");
1412         field_copy_tests_validate_same_type(v_selected_copy, v_label2_seq_type,
1413                 "v_selected");
1414         field_copy_tests_validate_same_type(v_selected_0_copy, v_label2_type,
1415                 "v_selected_0");
1416         field_copy_tests_validate_same_type(v_selected_1_copy, v_label2_type,
1417                 "v_selected_1");
1418         field_copy_tests_validate_same_type(v_selected_2_copy, v_label2_type,
1419                 "v_selected_2");
1420         field_copy_tests_validate_same_type(v_selected_3_copy, v_label2_type,
1421                 "v_selected_3");
1422         field_copy_tests_validate_same_type(v_selected_4_copy, v_label2_type,
1423                 "v_selected_4");
1424         field_copy_tests_validate_same_type(v_selected_5_copy, v_label2_type,
1425                 "v_selected_5");
1426         field_copy_tests_validate_same_type(v_selected_6_copy, v_label2_type,
1427                 "v_selected_6");
1428         field_copy_tests_validate_same_type(a_copy, v_label1_array_type, "a");
1429         field_copy_tests_validate_same_type(a_0_copy, v_label1_type, "a_0");
1430         field_copy_tests_validate_same_type(a_1_copy, v_label1_type, "a_1");
1431         field_copy_tests_validate_same_type(a_2_copy, v_label1_type, "a_2");
1432         field_copy_tests_validate_same_type(a_3_copy, v_label1_type, "a_3");
1433         field_copy_tests_validate_same_type(a_4_copy, v_label1_type, "a_4");
1434
1435         /* validate len copy */
1436         ret = bt_ctf_field_unsigned_integer_get_value(len_copy, &uint64_t_val);
1437         assert(!ret);
1438         ok(uint64_t_val == 7,
1439                 "bt_ctf_field_copy creates a valid integer field copy");
1440
1441         /* validate fp copy */
1442         ret = bt_ctf_field_floating_point_get_value(fp_copy, &double_val);
1443         assert(!ret);
1444         ok(double_val == 3.14,
1445                 "bt_ctf_field_copy creates a valid floating point number field copy");
1446
1447         /* validate s copy */
1448         str_val = bt_ctf_field_string_get_value(s_copy);
1449         ok(str_val && !strcmp(str_val, "btbt"),
1450                 "bt_ctf_field_copy creates a valid string field copy");
1451
1452         /* validate e_int copy */
1453         ret = bt_ctf_field_unsigned_integer_get_value(e_int_copy,
1454                 &uint64_t_val);
1455         assert(!ret);
1456         ok(uint64_t_val == 23,
1457                 "bt_ctf_field_copy creates a valid enum's integer field copy");
1458
1459         /* validate e copy */
1460         e_iter = bt_ctf_field_enumeration_get_mappings(e_copy);
1461         (void) bt_ctf_field_type_enumeration_mapping_iterator_get_signed(e_iter,
1462                 &str_val, NULL, NULL);
1463         ok(str_val && !strcmp(str_val, "LABEL2"),
1464                 "bt_ctf_field_copy creates a valid enum field copy");
1465
1466         /* validate v_selected copy */
1467         v_selected_copy_len = bt_ctf_field_sequence_get_length(v_selected);
1468         assert(v_selected_copy_len);
1469         ret = bt_ctf_field_unsigned_integer_get_value(v_selected_copy_len,
1470                 &uint64_t_val);
1471         assert(!ret);
1472         ok(uint64_t_val == 7,
1473                 "bt_ctf_field_copy creates a sequence field copy with the proper length");
1474         bt_put(v_selected_copy_len);
1475         v_selected_copy_len = NULL;
1476
1477         /* validate v_selected copy fields */
1478         ret = bt_ctf_field_unsigned_integer_get_value(v_selected_0_copy,
1479                 &uint64_t_val);
1480         assert(!ret);
1481         ok(uint64_t_val == 7,
1482                 "bt_ctf_field_copy creates a valid sequence field element copy (v_selected_0)");
1483         ret = bt_ctf_field_unsigned_integer_get_value(v_selected_1_copy,
1484                 &uint64_t_val);
1485         assert(!ret);
1486         ok(uint64_t_val == 6,
1487                 "bt_ctf_field_copy creates a valid sequence field element copy (v_selected_1)");
1488         ret = bt_ctf_field_unsigned_integer_get_value(v_selected_2_copy,
1489                 &uint64_t_val);
1490         assert(!ret);
1491         ok(uint64_t_val == 5,
1492                 "bt_ctf_field_copy creates a valid sequence field element copy (v_selected_2)");
1493         ret = bt_ctf_field_unsigned_integer_get_value(v_selected_3_copy,
1494                 &uint64_t_val);
1495         assert(!ret);
1496         ok(uint64_t_val == 4,
1497                 "bt_ctf_field_copy creates a valid sequence field element copy (v_selected_3)");
1498         ret = bt_ctf_field_unsigned_integer_get_value(v_selected_4_copy,
1499                 &uint64_t_val);
1500         assert(!ret);
1501         ok(uint64_t_val == 3,
1502                 "bt_ctf_field_copy creates a valid sequence field element copy (v_selected_4)");
1503         ret = bt_ctf_field_unsigned_integer_get_value(v_selected_5_copy,
1504                 &uint64_t_val);
1505         assert(!ret);
1506         ok(uint64_t_val == 2,
1507                 "bt_ctf_field_copy creates a valid sequence field element copy (v_selected_5)");
1508         ret = bt_ctf_field_unsigned_integer_get_value(v_selected_6_copy,
1509                 &uint64_t_val);
1510         assert(!ret);
1511         ok(uint64_t_val == 1,
1512                 "bt_ctf_field_copy creates a valid sequence field element copy (v_selected_6)");
1513
1514         /* validate a copy fields */
1515         str_val = bt_ctf_field_string_get_value(a_0_copy);
1516         ok(str_val && !strcmp(str_val, "a_0"),
1517                 "bt_ctf_field_copy creates a valid array field element copy (a_0)");
1518         str_val = bt_ctf_field_string_get_value(a_1_copy);
1519         ok(str_val && !strcmp(str_val, "a_1"),
1520                 "bt_ctf_field_copy creates a valid array field element copy (a_1)");
1521         str_val = bt_ctf_field_string_get_value(a_2_copy);
1522         ok(str_val && !strcmp(str_val, "a_2"),
1523                 "bt_ctf_field_copy creates a valid array field element copy (a_2)");
1524         str_val = bt_ctf_field_string_get_value(a_3_copy);
1525         ok(str_val && !strcmp(str_val, "a_3"),
1526                 "bt_ctf_field_copy creates a valid array field element copy (a_3)");
1527         str_val = bt_ctf_field_string_get_value(a_4_copy);
1528         ok(str_val && !strcmp(str_val, "a_4"),
1529                 "bt_ctf_field_copy creates a valid array field element copy (a_4)");
1530
1531         /* put everything */
1532         bt_put(len_type);
1533         bt_put(fp_type);
1534         bt_put(s_type);
1535         bt_put(e_int_type);
1536         bt_put(e_type);
1537         bt_put(v_type);
1538         bt_put(v_label1_type);
1539         bt_put(v_label1_array_type);
1540         bt_put(v_label2_type);
1541         bt_put(v_label2_seq_type);
1542         bt_put(strct_type);
1543         bt_put(len);
1544         bt_put(fp);
1545         bt_put(s);
1546         bt_put(e_int);
1547         bt_put(e);
1548         bt_put(v);
1549         bt_put(v_selected);
1550         bt_put(v_selected_0);
1551         bt_put(v_selected_1);
1552         bt_put(v_selected_2);
1553         bt_put(v_selected_3);
1554         bt_put(v_selected_4);
1555         bt_put(v_selected_5);
1556         bt_put(v_selected_6);
1557         bt_put(a);
1558         bt_put(a_0);
1559         bt_put(a_1);
1560         bt_put(a_2);
1561         bt_put(a_3);
1562         bt_put(a_4);
1563         bt_put(strct);
1564         bt_put(len_copy);
1565         bt_put(fp_copy);
1566         bt_put(s_copy);
1567         bt_put(e_int_copy);
1568         bt_put(e_copy);
1569         bt_put(v_copy);
1570         bt_put(v_selected_copy);
1571         bt_put(v_selected_0_copy);
1572         bt_put(v_selected_1_copy);
1573         bt_put(v_selected_2_copy);
1574         bt_put(v_selected_3_copy);
1575         bt_put(v_selected_4_copy);
1576         bt_put(v_selected_5_copy);
1577         bt_put(v_selected_6_copy);
1578         bt_put(a_copy);
1579         bt_put(a_0_copy);
1580         bt_put(a_1_copy);
1581         bt_put(a_2_copy);
1582         bt_put(a_3_copy);
1583         bt_put(a_4_copy);
1584         bt_put(strct_copy);
1585         bt_put(e_iter);
1586 }
1587
1588 static
1589 void type_field_tests()
1590 {
1591         struct bt_ctf_field *uint_12;
1592         struct bt_ctf_field *int_16;
1593         struct bt_ctf_field *string;
1594         struct bt_ctf_field *enumeration;
1595         struct bt_ctf_field_type *composite_structure_type;
1596         struct bt_ctf_field_type *structure_seq_type;
1597         struct bt_ctf_field_type *string_type;
1598         struct bt_ctf_field_type *sequence_type;
1599         struct bt_ctf_field_type *uint_8_type;
1600         struct bt_ctf_field_type *int_16_type;
1601         struct bt_ctf_field_type *uint_12_type =
1602                 bt_ctf_field_type_integer_create(12);
1603         struct bt_ctf_field_type *enumeration_type;
1604         struct bt_ctf_field_type *returned_type;
1605         const char *ret_string;
1606
1607         returned_type = bt_ctf_field_get_type(NULL);
1608         ok(!returned_type, "bt_ctf_field_get_type handles NULL correctly");
1609
1610         ok(uint_12_type, "Create an unsigned integer type");
1611         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1612                 BT_CTF_INTEGER_BASE_BINARY) == 0,
1613                 "Set integer type's base as binary");
1614         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1615                 BT_CTF_INTEGER_BASE_DECIMAL) == 0,
1616                 "Set integer type's base as decimal");
1617         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1618                 BT_CTF_INTEGER_BASE_UNKNOWN),
1619                 "Reject integer type's base set as unknown");
1620         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1621                 BT_CTF_INTEGER_BASE_OCTAL) == 0,
1622                 "Set integer type's base as octal");
1623         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1624                 BT_CTF_INTEGER_BASE_HEXADECIMAL) == 0,
1625                 "Set integer type's base as hexadecimal");
1626         ok(bt_ctf_field_type_integer_set_base(uint_12_type, 457417),
1627                 "Reject unknown integer base value");
1628         ok(bt_ctf_field_type_integer_set_signed(uint_12_type, 952835) == 0,
1629                 "Set integer type signedness to signed");
1630         ok(bt_ctf_field_type_integer_set_signed(uint_12_type, 0) == 0,
1631                 "Set integer type signedness to unsigned");
1632         ok(bt_ctf_field_type_integer_get_size(NULL) < 0,
1633                 "bt_ctf_field_type_integer_get_size handles NULL correctly");
1634         ok(bt_ctf_field_type_integer_get_size(uint_12_type) == 12,
1635                 "bt_ctf_field_type_integer_get_size returns a correct value");
1636         ok(bt_ctf_field_type_integer_get_signed(NULL) < 0,
1637                 "bt_ctf_field_type_integer_get_signed handles NULL correctly");
1638         ok(bt_ctf_field_type_integer_get_signed(uint_12_type) == 0,
1639                 "bt_ctf_field_type_integer_get_signed returns a correct value for unsigned types");
1640
1641         ok(bt_ctf_field_type_set_byte_order(NULL,
1642                 BT_CTF_BYTE_ORDER_LITTLE_ENDIAN) < 0,
1643                 "bt_ctf_field_type_set_byte_order handles NULL correctly");
1644         ok(bt_ctf_field_type_set_byte_order(uint_12_type,
1645                 (enum bt_ctf_byte_order) 42) < 0,
1646                 "bt_ctf_field_type_set_byte_order rejects invalid values");
1647         ok(bt_ctf_field_type_set_byte_order(uint_12_type,
1648                 BT_CTF_BYTE_ORDER_LITTLE_ENDIAN) == 0,
1649                 "Set an integer's byte order to little endian");
1650         ok(bt_ctf_field_type_set_byte_order(uint_12_type,
1651                 BT_CTF_BYTE_ORDER_BIG_ENDIAN) == 0,
1652                 "Set an integer's byte order to big endian");
1653         ok(bt_ctf_field_type_get_byte_order(uint_12_type) ==
1654                 BT_CTF_BYTE_ORDER_BIG_ENDIAN,
1655                 "bt_ctf_field_type_get_byte_order returns a correct value");
1656         ok(bt_ctf_field_type_get_byte_order(NULL) ==
1657                 BT_CTF_BYTE_ORDER_UNKNOWN,
1658                 "bt_ctf_field_type_get_byte_order handles NULL correctly");
1659
1660         ok(bt_ctf_field_type_get_type_id(NULL) ==
1661                 BT_CTF_FIELD_TYPE_ID_UNKNOWN,
1662                 "bt_ctf_field_type_get_type_id handles NULL correctly");
1663         ok(bt_ctf_field_type_get_type_id(uint_12_type) ==
1664                 BT_CTF_FIELD_TYPE_ID_INTEGER,
1665                 "bt_ctf_field_type_get_type_id returns a correct value with an integer type");
1666
1667         ok(bt_ctf_field_type_integer_get_base(NULL) ==
1668                 BT_CTF_INTEGER_BASE_UNKNOWN,
1669                 "bt_ctf_field_type_integer_get_base handles NULL correctly");
1670         ok(bt_ctf_field_type_integer_get_base(uint_12_type) ==
1671                 BT_CTF_INTEGER_BASE_HEXADECIMAL,
1672                 "bt_ctf_field_type_integer_get_base returns a correct value");
1673
1674         ok(bt_ctf_field_type_integer_set_encoding(NULL,
1675                 BT_CTF_STRING_ENCODING_ASCII) < 0,
1676                 "bt_ctf_field_type_integer_set_encoding handles NULL correctly");
1677         ok(bt_ctf_field_type_integer_set_encoding(uint_12_type,
1678                 (enum bt_ctf_string_encoding) 123) < 0,
1679                 "bt_ctf_field_type_integer_set_encoding handles invalid encodings correctly");
1680         ok(bt_ctf_field_type_integer_set_encoding(uint_12_type,
1681                 BT_CTF_STRING_ENCODING_UTF8) == 0,
1682                 "Set integer type encoding to UTF8");
1683         ok(bt_ctf_field_type_integer_get_encoding(NULL) ==
1684                 BT_CTF_STRING_ENCODING_UNKNOWN,
1685                 "bt_ctf_field_type_integer_get_encoding handles NULL correctly");
1686         ok(bt_ctf_field_type_integer_get_encoding(uint_12_type) ==
1687                 BT_CTF_STRING_ENCODING_UTF8,
1688                 "bt_ctf_field_type_integer_get_encoding returns a correct value");
1689
1690         int_16_type = bt_ctf_field_type_integer_create(16);
1691         assert(int_16_type);
1692         ok(!bt_ctf_field_type_integer_set_signed(int_16_type, 1),
1693                 "Set signedness of 16 bit integer to true");
1694         ok(bt_ctf_field_type_integer_get_signed(int_16_type) == 1,
1695                 "bt_ctf_field_type_integer_get_signed returns a correct value for signed types");
1696         uint_8_type = bt_ctf_field_type_integer_create(8);
1697         sequence_type =
1698                 bt_ctf_field_type_sequence_create(int_16_type, "seq_len");
1699         ok(sequence_type, "Create a sequence of int16_t type");
1700         ok(bt_ctf_field_type_get_type_id(sequence_type) ==
1701                 BT_CTF_FIELD_TYPE_ID_SEQUENCE,
1702                 "bt_ctf_field_type_get_type_id returns a correct value with a sequence type");
1703
1704         ok(bt_ctf_field_type_sequence_get_length_field_name(NULL) == NULL,
1705                 "bt_ctf_field_type_sequence_get_length_field_name handles NULL correctly");
1706         ret_string = bt_ctf_field_type_sequence_get_length_field_name(
1707                 sequence_type);
1708         ok(!strcmp(ret_string, "seq_len"),
1709                 "bt_ctf_field_type_sequence_get_length_field_name returns the correct value");
1710         ok(bt_ctf_field_type_sequence_get_element_type(NULL) == NULL,
1711                 "bt_ctf_field_type_sequence_get_element_type handles NULL correctly");
1712         returned_type = bt_ctf_field_type_sequence_get_element_type(
1713                 sequence_type);
1714         ok(returned_type == int_16_type,
1715                 "bt_ctf_field_type_sequence_get_element_type returns the correct type");
1716         bt_put(returned_type);
1717
1718         string_type = bt_ctf_field_type_string_create();
1719         ok(string_type, "Create a string type");
1720         ok(bt_ctf_field_type_string_set_encoding(string_type,
1721                 BT_CTF_STRING_ENCODING_NONE),
1722                 "Reject invalid \"None\" string encoding");
1723         ok(bt_ctf_field_type_string_set_encoding(string_type,
1724                 42),
1725                 "Reject invalid string encoding");
1726         ok(bt_ctf_field_type_string_set_encoding(string_type,
1727                 BT_CTF_STRING_ENCODING_ASCII) == 0,
1728                 "Set string encoding to ASCII");
1729
1730         ok(bt_ctf_field_type_string_get_encoding(NULL) ==
1731                 BT_CTF_STRING_ENCODING_UNKNOWN,
1732                 "bt_ctf_field_type_string_get_encoding handles NULL correctly");
1733         ok(bt_ctf_field_type_string_get_encoding(string_type) ==
1734                 BT_CTF_STRING_ENCODING_ASCII,
1735                 "bt_ctf_field_type_string_get_encoding returns the correct value");
1736
1737         structure_seq_type = bt_ctf_field_type_structure_create();
1738         ok(bt_ctf_field_type_get_type_id(structure_seq_type) ==
1739                 BT_CTF_FIELD_TYPE_ID_STRUCT,
1740                 "bt_ctf_field_type_get_type_id returns a correct value with a structure type");
1741         ok(structure_seq_type, "Create a structure type");
1742         ok(bt_ctf_field_type_structure_add_field(structure_seq_type,
1743                 uint_8_type, "seq_len") == 0,
1744                 "Add a uint8_t type to a structure");
1745         ok(bt_ctf_field_type_structure_add_field(structure_seq_type,
1746                 sequence_type, "a_sequence") == 0,
1747                 "Add a sequence type to a structure");
1748
1749         ok(bt_ctf_field_type_structure_get_field_count(NULL) < 0,
1750                 "bt_ctf_field_type_structure_get_field_count handles NULL correctly");
1751         ok(bt_ctf_field_type_structure_get_field_count(structure_seq_type) == 2,
1752                 "bt_ctf_field_type_structure_get_field_count returns a correct value");
1753
1754         ok(bt_ctf_field_type_structure_get_field(NULL,
1755                 &ret_string, &returned_type, 1) < 0,
1756                 "bt_ctf_field_type_structure_get_field handles a NULL type correctly");
1757         ok(bt_ctf_field_type_structure_get_field(structure_seq_type,
1758                 NULL, &returned_type, 1) == 0,
1759                 "bt_ctf_field_type_structure_get_field handles a NULL name correctly");
1760         bt_put(returned_type);
1761         ok(bt_ctf_field_type_structure_get_field(structure_seq_type,
1762                 &ret_string, NULL, 1) == 0,
1763                 "bt_ctf_field_type_structure_get_field handles a NULL return type correctly");
1764         ok(bt_ctf_field_type_structure_get_field(structure_seq_type,
1765                 &ret_string, &returned_type, 10) < 0,
1766                 "bt_ctf_field_type_structure_get_field handles an invalid index correctly");
1767         ok(bt_ctf_field_type_structure_get_field(structure_seq_type,
1768                 &ret_string, &returned_type, 1) == 0,
1769                 "bt_ctf_field_type_structure_get_field returns a field");
1770         ok(!strcmp(ret_string, "a_sequence"),
1771                 "bt_ctf_field_type_structure_get_field returns a correct field name");
1772         ok(returned_type == sequence_type,
1773                 "bt_ctf_field_type_structure_get_field returns a correct field type");
1774         bt_put(returned_type);
1775
1776         ok(bt_ctf_field_type_structure_get_field_type_by_name(NULL, "a_sequence") == NULL,
1777                 "bt_ctf_field_type_structure_get_field_type_by_name handles a NULL structure correctly");
1778         ok(bt_ctf_field_type_structure_get_field_type_by_name(structure_seq_type, NULL) == NULL,
1779                 "bt_ctf_field_type_structure_get_field_type_by_name handles a NULL field name correctly");
1780         returned_type = bt_ctf_field_type_structure_get_field_type_by_name(
1781                 structure_seq_type, "a_sequence");
1782         ok(returned_type == sequence_type,
1783                 "bt_ctf_field_type_structure_get_field_type_by_name returns the correct field type");
1784         bt_put(returned_type);
1785
1786         composite_structure_type = bt_ctf_field_type_structure_create();
1787         ok(bt_ctf_field_type_structure_add_field(composite_structure_type,
1788                 string_type, "a_string") == 0,
1789                 "Add a string type to a structure");
1790         ok(bt_ctf_field_type_structure_add_field(composite_structure_type,
1791                 structure_seq_type, "inner_structure") == 0,
1792                 "Add a structure type to a structure");
1793
1794         ok(bt_ctf_field_type_structure_get_field_type_by_name(
1795                 NULL, "a_sequence") == NULL,
1796                 "bt_ctf_field_type_structure_get_field_type_by_name handles a NULL field correctly");
1797         ok(bt_ctf_field_type_structure_get_field_type_by_name(
1798                 structure_seq_type, NULL) == NULL,
1799                 "bt_ctf_field_type_structure_get_field_type_by_name handles a NULL field name correctly");
1800         returned_type = bt_ctf_field_type_structure_get_field_type_by_name(
1801                 structure_seq_type, "a_sequence");
1802         ok(returned_type == sequence_type,
1803                 "bt_ctf_field_type_structure_get_field_type_by_name returns a correct type");
1804         bt_put(returned_type);
1805
1806         int_16 = bt_ctf_field_create(int_16_type);
1807         ok(int_16, "Instanciate a signed 16-bit integer");
1808         uint_12 = bt_ctf_field_create(uint_12_type);
1809         ok(uint_12, "Instanciate an unsigned 12-bit integer");
1810         returned_type = bt_ctf_field_get_type(int_16);
1811         ok(returned_type == int_16_type,
1812                 "bt_ctf_field_get_type returns the correct type");
1813
1814         /* Can't modify types after instanciating them */
1815         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1816                 BT_CTF_INTEGER_BASE_DECIMAL),
1817                 "Check an integer type' base can't be modified after instanciation");
1818         ok(bt_ctf_field_type_integer_set_signed(uint_12_type, 0),
1819                 "Check an integer type's signedness can't be modified after instanciation");
1820
1821         /* Check signed property is checked */
1822         ok(bt_ctf_field_signed_integer_set_value(uint_12, -52),
1823                 "Check bt_ctf_field_signed_integer_set_value is not allowed on an unsigned integer");
1824         ok(bt_ctf_field_unsigned_integer_set_value(int_16, 42),
1825                 "Check bt_ctf_field_unsigned_integer_set_value is not allowed on a signed integer");
1826
1827         /* Check overflows are properly tested for */
1828         ok(bt_ctf_field_signed_integer_set_value(int_16, -32768) == 0,
1829                 "Check -32768 is allowed for a signed 16-bit integer");
1830         ok(bt_ctf_field_signed_integer_set_value(int_16, 32767) == 0,
1831                 "Check 32767 is allowed for a signed 16-bit integer");
1832         ok(bt_ctf_field_signed_integer_set_value(int_16, 32768),
1833                 "Check 32768 is not allowed for a signed 16-bit integer");
1834         ok(bt_ctf_field_signed_integer_set_value(int_16, -32769),
1835                 "Check -32769 is not allowed for a signed 16-bit integer");
1836         ok(bt_ctf_field_signed_integer_set_value(int_16, -42) == 0,
1837                 "Check -42 is allowed for a signed 16-bit integer");
1838
1839         ok(bt_ctf_field_unsigned_integer_set_value(uint_12, 4095) == 0,
1840                 "Check 4095 is allowed for an unsigned 12-bit integer");
1841         ok(bt_ctf_field_unsigned_integer_set_value(uint_12, 4096),
1842                 "Check 4096 is not allowed for a unsigned 12-bit integer");
1843         ok(bt_ctf_field_unsigned_integer_set_value(uint_12, 0) == 0,
1844                 "Check 0 is allowed for an unsigned 12-bit integer");
1845
1846         string = bt_ctf_field_create(string_type);
1847         ok(string, "Instanciate a string field");
1848         ok(bt_ctf_field_string_set_value(string, "A value") == 0,
1849                 "Set a string's value");
1850
1851         enumeration_type = bt_ctf_field_type_enumeration_create(uint_12_type);
1852         ok(enumeration_type,
1853                 "Create an enumeration type with an unsigned 12-bit integer as container");
1854         enumeration = bt_ctf_field_create(enumeration_type);
1855         ok(!enumeration,
1856                 "Check enumeration types are validated before instantiation");
1857
1858         bt_put(string);
1859         bt_put(uint_12);
1860         bt_put(int_16);
1861         bt_put(enumeration);
1862         bt_put(composite_structure_type);
1863         bt_put(structure_seq_type);
1864         bt_put(string_type);
1865         bt_put(sequence_type);
1866         bt_put(uint_8_type);
1867         bt_put(int_16_type);
1868         bt_put(uint_12_type);
1869         bt_put(enumeration_type);
1870         bt_put(returned_type);
1871 }
1872
1873 static
1874 void packet_resize_test(struct bt_ctf_stream_class *stream_class,
1875                 struct bt_ctf_stream *stream, struct bt_ctf_clock *clock)
1876 {
1877         /*
1878          * Append enough events to force the underlying packet to be resized.
1879          * Also tests that a new event can be declared after a stream has been
1880          * instantiated and used/flushed.
1881          */
1882         int ret = 0;
1883         int i;
1884         struct bt_ctf_event_class *event_class = bt_ctf_event_class_create(
1885                 "Spammy_Event");
1886         struct bt_ctf_field_type *integer_type =
1887                 bt_ctf_field_type_integer_create(17);
1888         struct bt_ctf_field_type *string_type =
1889                 bt_ctf_field_type_string_create();
1890         struct bt_ctf_event *event = NULL;
1891         struct bt_ctf_field *ret_field = NULL;
1892         struct bt_ctf_field_type *ret_field_type = NULL;
1893         uint64_t ret_uint64;
1894         int events_appended = 0;
1895         struct bt_ctf_field *packet_context = NULL,
1896                 *packet_context_field = NULL, *stream_event_context = NULL;
1897         struct bt_ctf_field_type *ep_field_1_type = NULL;
1898         struct bt_ctf_field_type *ep_a_string_type = NULL;
1899         struct bt_ctf_field_type *ep_type = NULL;
1900
1901         ret |= bt_ctf_event_class_add_field(event_class, integer_type,
1902                 "field_1");
1903         ret |= bt_ctf_event_class_add_field(event_class, string_type,
1904                 "a_string");
1905         ret |= bt_ctf_stream_class_add_event_class(stream_class, event_class);
1906         ok(ret == 0, "Add a new event class to a stream class after writing an event");
1907         if (ret) {
1908                 goto end;
1909         }
1910
1911         /*
1912          * bt_ctf_stream_class_add_event_class() copies the field types
1913          * of event_class, so we retrieve the new ones to create the
1914          * appropriate fields.
1915          */
1916         ep_type = bt_ctf_event_class_get_payload_type(event_class);
1917         assert(ep_type);
1918         ep_field_1_type = bt_ctf_field_type_structure_get_field_type_by_name(
1919                 ep_type, "field_1");
1920         assert(ep_field_1_type);
1921         ep_a_string_type = bt_ctf_field_type_structure_get_field_type_by_name(
1922                 ep_type, "a_string");
1923         assert(ep_a_string_type);
1924
1925         event = bt_ctf_event_create(event_class);
1926         ret_field = bt_ctf_event_get_payload_by_index(event, 0);
1927         ret_field_type = bt_ctf_field_get_type(ret_field);
1928         ok(bt_ctf_field_type_compare(ret_field_type, integer_type) == 0,
1929                 "bt_ctf_event_get_payload_by_index returns a correct field");
1930         bt_put(ret_field_type);
1931         bt_put(ret_field);
1932
1933         ok(bt_ctf_event_get_payload_by_index(NULL, 0) == NULL,
1934                 "bt_ctf_event_get_payload_by_index handles NULL correctly");
1935         ok(bt_ctf_event_get_payload_by_index(event, 4) == NULL,
1936                 "bt_ctf_event_get_payload_by_index handles an invalid index correctly");
1937         bt_put(event);
1938
1939         for (i = 0; i < packet_resize_test_length; i++) {
1940                 event = bt_ctf_event_create(event_class);
1941                 struct bt_ctf_field *integer =
1942                         bt_ctf_field_create(ep_field_1_type);
1943                 struct bt_ctf_field *string =
1944                         bt_ctf_field_create(ep_a_string_type);
1945
1946                 ret |= bt_ctf_clock_set_time(clock, ++current_time);
1947                 ret |= bt_ctf_field_unsigned_integer_set_value(integer, i);
1948                 ret |= bt_ctf_event_set_payload(event, "field_1",
1949                         integer);
1950                 bt_put(integer);
1951                 ret |= bt_ctf_field_string_set_value(string, "This is a test");
1952                 ret |= bt_ctf_event_set_payload(event, "a_string",
1953                         string);
1954                 bt_put(string);
1955
1956                 /* Populate stream event context */
1957                 stream_event_context =
1958                         bt_ctf_event_get_stream_event_context(event);
1959                 integer = bt_ctf_field_structure_get_field(stream_event_context,
1960                         "common_event_context");
1961                 BT_PUT(stream_event_context);
1962                 ret |= bt_ctf_field_unsigned_integer_set_value(integer,
1963                         i % 42);
1964                 bt_put(integer);
1965
1966                 ret |= bt_ctf_stream_append_event(stream, event);
1967                 bt_put(event);
1968
1969                 if (ret) {
1970                         break;
1971                 }
1972         }
1973
1974         events_appended = !!(i == packet_resize_test_length);
1975         ok(bt_ctf_stream_get_discarded_events_count(NULL, &ret_uint64) < 0,
1976                 "bt_ctf_stream_get_discarded_events_count handles a NULL stream correctly");
1977         ok(bt_ctf_stream_get_discarded_events_count(stream, NULL) < 0,
1978                 "bt_ctf_stream_get_discarded_events_count handles a NULL return pointer correctly");
1979         ret = bt_ctf_stream_get_discarded_events_count(stream, &ret_uint64);
1980         ok(ret == 0 && ret_uint64 == 0,
1981                 "bt_ctf_stream_get_discarded_events_count returns a correct number of discarded events when none were discarded");
1982         bt_ctf_stream_append_discarded_events(stream, 1000);
1983         ret = bt_ctf_stream_get_discarded_events_count(stream, &ret_uint64);
1984         ok(ret == 0 && ret_uint64 == 1000,
1985                 "bt_ctf_stream_get_discarded_events_count returns a correct number of discarded events when some were discarded");
1986
1987 end:
1988         ok(events_appended, "Append 100 000 events to a stream");
1989
1990         /*
1991          * Populate the custom packet context field with a dummy value
1992          * otherwise flush will fail.
1993          */
1994         packet_context = bt_ctf_stream_get_packet_context(stream);
1995         packet_context_field = bt_ctf_field_structure_get_field(packet_context,
1996                 "custom_packet_context_field");
1997         bt_ctf_field_unsigned_integer_set_value(packet_context_field, 2);
1998
1999         ok(bt_ctf_stream_flush(stream) == 0,
2000                 "Flush a stream that forces a packet resize");
2001         ret = bt_ctf_stream_get_discarded_events_count(stream, &ret_uint64);
2002         ok(ret == 0 && ret_uint64 == 1000,
2003                 "bt_ctf_stream_get_discarded_events_count returns a correct number of discarded events after a flush");
2004         bt_put(integer_type);
2005         bt_put(string_type);
2006         bt_put(packet_context);
2007         bt_put(packet_context_field);
2008         bt_put(stream_event_context);
2009         bt_put(event_class);
2010         bt_put(ep_field_1_type);
2011         bt_put(ep_a_string_type);
2012         bt_put(ep_type);
2013 }
2014
2015 static
2016 void test_empty_stream(struct bt_ctf_writer *writer)
2017 {
2018         int ret = 0;
2019         struct bt_ctf_trace *trace = NULL, *ret_trace = NULL;
2020         struct bt_ctf_stream_class *stream_class = NULL;
2021         struct bt_ctf_stream *stream = NULL;
2022
2023         trace = bt_ctf_writer_get_trace(writer);
2024         if (!trace) {
2025                 diag("Failed to get trace from writer");
2026                 ret = -1;
2027                 goto end;
2028         }
2029
2030         stream_class = bt_ctf_stream_class_create("empty_stream");
2031         if (!stream_class) {
2032                 diag("Failed to create stream class");
2033                 ret = -1;
2034                 goto end;
2035         }
2036
2037         ret = bt_ctf_stream_class_set_packet_context_type(stream_class, NULL);
2038         assert(ret == 0);
2039         ret = bt_ctf_stream_class_set_event_header_type(stream_class, NULL);
2040         assert(ret == 0);
2041
2042         ok(bt_ctf_stream_class_get_trace(NULL) == NULL,
2043                 "bt_ctf_stream_class_get_trace handles NULL correctly");
2044         ok(bt_ctf_stream_class_get_trace(stream_class) == NULL,
2045                 "bt_ctf_stream_class_get_trace returns NULL when stream class is orphaned");
2046
2047         stream = bt_ctf_writer_create_stream(writer, stream_class);
2048         if (!stream) {
2049                 diag("Failed to create writer stream");
2050                 ret = -1;
2051                 goto end;
2052         }
2053
2054         ret_trace = bt_ctf_stream_class_get_trace(stream_class);
2055         ok(ret_trace == trace,
2056                 "bt_ctf_stream_class_get_trace returns the correct trace after a stream has been created");
2057 end:
2058         ok(ret == 0,
2059                 "Created a stream class with default attributes and an empty stream");
2060         bt_put(trace);
2061         bt_put(ret_trace);
2062         bt_put(stream);
2063         bt_put(stream_class);
2064 }
2065
2066 static
2067 void test_custom_event_header_stream(struct bt_ctf_writer *writer,
2068                         struct bt_ctf_clock *clock)
2069 {
2070         int i, ret;
2071         struct bt_ctf_stream_class *stream_class = NULL;
2072         struct bt_ctf_stream *stream = NULL;
2073         struct bt_ctf_field_type *integer_type = NULL,
2074                 *sequence_type = NULL, *event_header_type = NULL;
2075         struct bt_ctf_field *integer = NULL, *sequence = NULL,
2076                 *event_header = NULL, *packet_header = NULL;
2077         struct bt_ctf_event_class *event_class = NULL;
2078         struct bt_ctf_event *event = NULL;
2079
2080         stream_class = bt_ctf_stream_class_create("custom_event_header_stream");
2081         if (!stream_class) {
2082                 fail("Failed to create stream class");
2083                 goto end;
2084         }
2085
2086         ret = bt_ctf_stream_class_set_clock(stream_class, clock);
2087         if (ret) {
2088                 fail("Failed to set stream class clock");
2089                 goto end;
2090         }
2091
2092         /*
2093          * Customize event header to add an "seq_len" integer member
2094          * which will be used as the length of a sequence in an event of this
2095          * stream.
2096          */
2097         event_header_type = bt_ctf_stream_class_get_event_header_type(
2098                 stream_class);
2099         if (!event_header_type) {
2100                 fail("Failed to get event header type");
2101                 goto end;
2102         }
2103
2104         integer_type = bt_ctf_field_type_integer_create(13);
2105         if (!integer_type) {
2106                 fail("Failed to create length integer type");
2107                 goto end;
2108         }
2109
2110         ret = bt_ctf_field_type_structure_add_field(event_header_type,
2111                 integer_type, "seq_len");
2112         if (ret) {
2113                 fail("Failed to add a new field to stream event header");
2114                 goto end;
2115         }
2116
2117         event_class = bt_ctf_event_class_create("sequence_event");
2118         if (!event_class) {
2119                 fail("Failed to create event class");
2120                 goto end;
2121         }
2122
2123         /*
2124          * This event's payload will contain a sequence which references
2125          * stream.event.header.seq_len as its length field.
2126          */
2127         sequence_type = bt_ctf_field_type_sequence_create(integer_type,
2128                 "stream.event.header.seq_len");
2129         if (!sequence_type) {
2130                 fail("Failed to create a sequence");
2131                 goto end;
2132         }
2133
2134         ret = bt_ctf_event_class_add_field(event_class, sequence_type,
2135                 "some_sequence");
2136         if (ret) {
2137                 fail("Failed to add a sequence to an event class");
2138                 goto end;
2139         }
2140
2141         ret = bt_ctf_stream_class_add_event_class(stream_class, event_class);
2142         if (ret) {
2143                 fail("Failed to add event class to stream class");
2144                 goto end;
2145         }
2146
2147         stream = bt_ctf_writer_create_stream(writer, stream_class);
2148         if (!stream) {
2149                 fail("Failed to create stream")
2150                 goto end;
2151         }
2152
2153         /*
2154          * We have defined a custom packet header field. We have to populate it
2155          * explicitly.
2156          */
2157         packet_header = bt_ctf_stream_get_packet_header(stream);
2158         if (!packet_header) {
2159                 fail("Failed to get stream packet header");
2160                 goto end;
2161         }
2162
2163         integer = bt_ctf_field_structure_get_field(packet_header,
2164                 "custom_trace_packet_header_field");
2165         if (!integer) {
2166                 fail("Failed to retrieve custom_trace_packet_header_field");
2167                 goto end;
2168         }
2169
2170         ret = bt_ctf_field_unsigned_integer_set_value(integer, 3487);
2171         if (ret) {
2172                 fail("Failed to set custom_trace_packet_header_field value");
2173                 goto end;
2174         }
2175         bt_put(integer);
2176
2177         event = bt_ctf_event_create(event_class);
2178         if (!event) {
2179                 fail("Failed to create event");
2180                 goto end;
2181         }
2182
2183         event_header = bt_ctf_event_get_header(event);
2184         if (!event_header) {
2185                 fail("Failed to get event header");
2186                 goto end;
2187         }
2188
2189         integer = bt_ctf_field_structure_get_field(event_header,
2190                 "seq_len");
2191         if (!integer) {
2192                 fail("Failed to get seq_len field from event header");
2193                 goto end;
2194         }
2195
2196         ret = bt_ctf_field_unsigned_integer_set_value(integer, 2);
2197         if (ret) {
2198                 fail("Failed to set seq_len value in event header");
2199                 goto end;
2200         }
2201
2202         /* Populate both sequence integer fields */
2203         sequence = bt_ctf_event_get_payload(event, "some_sequence");
2204         if (!sequence) {
2205                 fail("Failed to retrieve sequence from event");
2206                 goto end;
2207         }
2208
2209         ret = bt_ctf_field_sequence_set_length(sequence, integer);
2210         if (ret) {
2211                 fail("Failed to set sequence length");
2212                 goto end;
2213         }
2214         bt_put(integer);
2215
2216         for (i = 0; i < 2; i++) {
2217                 integer = bt_ctf_field_sequence_get_field(sequence, i);
2218                 if (ret) {
2219                         fail("Failed to retrieve sequence element");
2220                         goto end;
2221                 }
2222
2223                 ret = bt_ctf_field_unsigned_integer_set_value(integer, i);
2224                 if (ret) {
2225                         fail("Failed to set sequence element value");
2226                         goto end;
2227                 }
2228
2229                 bt_put(integer);
2230                 integer = NULL;
2231         }
2232
2233         ret = bt_ctf_stream_append_event(stream, event);
2234         if (ret) {
2235                 fail("Failed to append event to stream");
2236                 goto end;
2237         }
2238
2239         ret = bt_ctf_stream_flush(stream);
2240         if (ret) {
2241                 fail("Failed to flush custom_event_header stream");
2242         }
2243 end:
2244         bt_put(stream);
2245         bt_put(stream_class);
2246         bt_put(event_class);
2247         bt_put(event);
2248         bt_put(integer);
2249         bt_put(sequence);
2250         bt_put(event_header);
2251         bt_put(packet_header);
2252         bt_put(sequence_type);
2253         bt_put(integer_type);
2254         bt_put(event_header_type);
2255 }
2256
2257 static
2258 void test_instanciate_event_before_stream(struct bt_ctf_writer *writer,
2259                 struct bt_ctf_clock *clock)
2260 {
2261         int ret = 0;
2262         struct bt_ctf_stream_class *stream_class = NULL;
2263         struct bt_ctf_stream *stream = NULL,
2264                 *ret_stream = NULL;
2265         struct bt_ctf_event_class *event_class = NULL;
2266         struct bt_ctf_event *event = NULL;
2267         struct bt_ctf_field_type *integer_type = NULL;
2268         struct bt_ctf_field *integer = NULL;
2269
2270         stream_class = bt_ctf_stream_class_create("event_before_stream_test");
2271         if (!stream_class) {
2272                 diag("Failed to create stream class");
2273                 ret = -1;
2274                 goto end;
2275         }
2276
2277         ret = bt_ctf_stream_class_set_clock(stream_class, clock);
2278         if (ret) {
2279                 diag("Failed to set stream class clock");
2280                 goto end;
2281         }
2282
2283         event_class = bt_ctf_event_class_create("some_event_class_name");
2284         integer_type = bt_ctf_field_type_integer_create(32);
2285         if (!integer_type) {
2286                 diag("Failed to create integer field type");
2287                 ret = -1;
2288                 goto end;
2289         }
2290
2291         ret = bt_ctf_event_class_add_field(event_class, integer_type,
2292                 "integer_field");
2293         if (ret) {
2294                 diag("Failed to add field to event class");
2295                 goto end;
2296         }
2297
2298         ret = bt_ctf_stream_class_add_event_class(stream_class,
2299                 event_class);
2300         if (ret) {
2301                 diag("Failed to add event class to stream class");
2302         }
2303
2304         event = bt_ctf_event_create(event_class);
2305         if (!event) {
2306                 diag("Failed to create event");
2307                 ret = -1;
2308                 goto end;
2309         }
2310
2311         integer = bt_ctf_event_get_payload_by_index(event, 0);
2312         if (!integer) {
2313                 diag("Failed to get integer field payload from event");
2314                 ret = -1;
2315                 goto end;
2316         }
2317
2318         ret = bt_ctf_field_unsigned_integer_set_value(integer, 1234);
2319         if (ret) {
2320                 diag("Failed to set integer field value");
2321                 goto end;
2322         }
2323
2324         stream = bt_ctf_writer_create_stream(writer, stream_class);
2325         if (!stream) {
2326                 diag("Failed to create writer stream");
2327                 ret = -1;
2328                 goto end;
2329         }
2330
2331         ok(bt_ctf_event_get_stream(NULL) == NULL,
2332                 "bt_ctf_event_get_stream handles NULL correctly");
2333         ok(bt_ctf_event_get_stream(event) == NULL,
2334                 "bt_ctf_event_get_stream returns NULL on event which has not yet been appended to a stream");
2335
2336         ret = bt_ctf_stream_append_event(stream, event);
2337         if (ret) {
2338                 diag("Failed to append event to stream");
2339                 goto end;
2340         }
2341
2342         ret_stream = bt_ctf_event_get_stream(event);
2343         ok(ret_stream == stream,
2344                 "bt_ctf_event_get_stream returns an event's stream after it has been appended");
2345 end:
2346         ok(ret == 0,
2347                 "Create an event before instanciating its associated stream");
2348         bt_put(stream);
2349         bt_put(ret_stream);
2350         bt_put(stream_class);
2351         bt_put(event_class);
2352         bt_put(event);
2353         bt_put(integer_type);
2354         bt_put(integer);
2355 }
2356
2357 static
2358 void append_existing_event_class(struct bt_ctf_stream_class *stream_class)
2359 {
2360         struct bt_ctf_event_class *event_class;
2361
2362         event_class = bt_ctf_event_class_create("Simple Event");
2363         assert(event_class);
2364         ok(bt_ctf_stream_class_add_event_class(stream_class, event_class) == 0,
2365                 "two event classes with the same name may cohabit within the same stream class");
2366         bt_put(event_class);
2367
2368         event_class = bt_ctf_event_class_create("different name, ok");
2369         assert(event_class);
2370         assert(!bt_ctf_event_class_set_id(event_class, 13));
2371         ok(bt_ctf_stream_class_add_event_class(stream_class, event_class),
2372                 "two event classes with the same ID cannot cohabit within the same stream class");
2373         bt_put(event_class);
2374 }
2375
2376 static
2377 struct bt_ctf_event_class *create_minimal_event_class(void)
2378 {
2379         struct bt_ctf_event_class *ec = NULL;
2380         struct bt_ctf_field_type *int_ft = NULL;
2381         int ret;
2382
2383         int_ft = bt_ctf_field_type_integer_create(23);
2384         assert(int_ft);
2385         ec = bt_ctf_event_class_create("minimal");
2386         assert(ec);
2387         ret = bt_ctf_event_class_add_field(ec, int_ft, "field");
2388         assert(!ret);
2389         BT_PUT(int_ft);
2390
2391         return ec;
2392 }
2393
2394 static
2395 void test_create_writer_vs_non_writer_mode(void)
2396 {
2397         int ret;
2398         gchar *trace_path;
2399         const char *writer_stream_name = "writer stream instance";
2400         struct bt_ctf_writer *writer = NULL;
2401         struct bt_ctf_trace *writer_trace = NULL;
2402         struct bt_ctf_stream_class *writer_sc = NULL;
2403         struct bt_ctf_stream *writer_stream = NULL;
2404         struct bt_ctf_stream *writer_stream2 = NULL;
2405         struct bt_ctf_stream *packet_stream = NULL;
2406         struct bt_ctf_trace *non_writer_trace = NULL;
2407         struct bt_ctf_stream_class *non_writer_sc = NULL;
2408         struct bt_ctf_stream *non_writer_stream = NULL;
2409         struct bt_ctf_stream *non_writer_stream2 = NULL;
2410         struct bt_ctf_event_class *writer_ec = NULL;
2411         struct bt_ctf_event_class *non_writer_ec = NULL;
2412         struct bt_ctf_event *event = NULL;
2413         struct bt_ctf_event *event2 = NULL;
2414         struct bt_ctf_field_type *empty_struct_ft = NULL;
2415         struct bt_ctf_field *int_field = NULL;
2416         struct bt_ctf_clock *writer_clock = NULL;
2417         struct bt_ctf_clock_class *non_writer_clock_class = NULL;
2418         struct bt_ctf_packet *packet = NULL;
2419         struct bt_ctf_packet *packet2 = NULL;
2420
2421         trace_path = g_build_filename(g_get_tmp_dir(), "ctfwriter_XXXXXX", NULL);
2422         if (!bt_mkdtemp(trace_path)) {
2423                 perror("# perror");
2424         }
2425
2426         /* Create empty structure field type (event header) */
2427         empty_struct_ft = bt_ctf_field_type_structure_create();
2428         assert(empty_struct_ft);
2429
2430         /* Create writer, writer stream class, stream, and clock */
2431         writer = bt_ctf_writer_create(trace_path);
2432         assert(writer);
2433         writer_clock = bt_ctf_clock_create("writer_clock");
2434         assert(writer_clock);
2435         ret = bt_ctf_writer_add_clock(writer, writer_clock);
2436         assert(!ret);
2437         ret = bt_ctf_writer_set_byte_order(writer, BT_CTF_BYTE_ORDER_LITTLE_ENDIAN);
2438         assert(!ret);
2439         writer_trace = bt_ctf_writer_get_trace(writer);
2440         ok(writer_trace, "bt_ctf_writer_get_trace() returns a trace");
2441         writer_sc = bt_ctf_stream_class_create("writer_sc");
2442         assert(writer_sc);
2443         ret = bt_ctf_stream_class_set_event_header_type(writer_sc,
2444                 empty_struct_ft);
2445         assert(!ret);
2446         ret = bt_ctf_stream_class_set_clock(writer_sc, writer_clock);
2447         assert(!ret);
2448         ret = bt_ctf_trace_add_stream_class(writer_trace, writer_sc);
2449         assert(!ret);
2450         writer_stream = bt_ctf_stream_create(writer_sc, writer_stream_name);
2451         assert(writer_stream);
2452         ok(!strcmp(bt_ctf_stream_get_name(writer_stream), writer_stream_name),
2453                 "bt_ctf_stream_get_name() returns the stream's name");
2454
2455         /* Create non-writer trace, stream class, stream, and clock */
2456         non_writer_trace = bt_ctf_trace_create();
2457         assert(non_writer_trace);
2458         non_writer_sc = bt_ctf_stream_class_create("nonwriter_sc");
2459         assert(non_writer_sc);
2460         ret = bt_ctf_stream_class_set_event_header_type(non_writer_sc,
2461                 empty_struct_ft);
2462         assert(!ret);
2463         ret = bt_ctf_stream_class_set_packet_context_type(non_writer_sc, NULL);
2464         assert(!ret);
2465         ret = bt_ctf_trace_add_stream_class(non_writer_trace, non_writer_sc);
2466         assert(!ret);
2467         non_writer_stream = bt_ctf_stream_create(non_writer_sc, NULL);
2468         assert(non_writer_stream);
2469         non_writer_clock_class =
2470                 bt_ctf_clock_class_create("non_writer_clock_class",
2471                         1000000000);
2472         assert(non_writer_clock_class);
2473         ret = bt_ctf_trace_add_clock_class(non_writer_trace,
2474                 non_writer_clock_class);
2475         assert(!ret);
2476
2477         /* Create event class and event */
2478         writer_ec = create_minimal_event_class();
2479         assert(writer_ec);
2480         ret = bt_ctf_stream_class_add_event_class(writer_sc, writer_ec);
2481         assert(!ret);
2482         event = bt_ctf_event_create(writer_ec);
2483         assert(event);
2484         int_field = bt_ctf_event_get_payload_by_index(event, 0);
2485         assert(int_field);
2486         bt_ctf_field_unsigned_integer_set_value(int_field, 17);
2487
2488         /*
2489          * Verify non-writer stream: it should be impossible to append
2490          * an event to it.
2491          */
2492         ok(bt_ctf_stream_append_event(non_writer_stream, event),
2493                 "bt_ctf_stream_append_event() fails with a non-writer stream");
2494
2495         /*
2496          * Verify writer stream: it should be possible to append an
2497          * event to it.
2498          */
2499         ok(!bt_ctf_stream_append_event(writer_stream, event),
2500                 "bt_ctf_stream_append_event() succeeds with a writer stream");
2501
2502         /*
2503          * It should be possible to create a packet from a non-writer
2504          * stream, but not from a writer stream.
2505          */
2506         packet = bt_ctf_packet_create(writer_stream);
2507         ok(!packet, "bt_ctf_packet_create() fails with a writer stream");
2508         packet = bt_ctf_packet_create(non_writer_stream);
2509         ok(packet, "bt_ctf_packet_create() succeeds with a non-writer stream");
2510         packet_stream = bt_ctf_packet_get_stream(packet);
2511         ok(packet_stream == non_writer_stream,
2512                 "bt_ctf_packet_get_stream() returns the correct stream");
2513
2514         /*
2515          * It should not be possible to append an event associated to
2516          * a stream to a different stream.
2517          */
2518         writer_stream2 = bt_ctf_stream_create(writer_sc, "zoo");
2519         assert(writer_stream2);
2520         ok(bt_ctf_stream_append_event(writer_stream2, event),
2521                 "bt_ctf_stream_append_event() fails with an event associated to another stream");
2522
2523         /*
2524          * It should not be possible to set the packet of an event
2525          * associated to a given stream to a packet associated with
2526          * a different stream.
2527          */
2528         ok(bt_ctf_event_set_packet(event, packet),
2529                 "bt_ctf_event_set_packet() fails with a packet not sharing the event's stream");
2530
2531         /*
2532          * It should be possible to set the packet of a fresh event, as
2533          * long as the originating stream classes are the same.
2534          */
2535         event2 = bt_ctf_event_create(writer_ec);
2536         assert(event2);
2537         ok(bt_ctf_event_set_packet(event2, packet),
2538                 "bt_ctf_event_set_packet() fails when the event's and the packet's stream class differ");
2539         non_writer_ec = create_minimal_event_class();
2540         assert(non_writer_ec);
2541         ret = bt_ctf_stream_class_add_event_class(non_writer_sc, non_writer_ec);
2542         assert(!ret);
2543         BT_PUT(event2);
2544         event2 = bt_ctf_event_create(non_writer_ec);
2545         assert(event2);
2546         ok(!bt_ctf_event_set_packet(event2, packet),
2547                 "bt_ctf_event_set_packet() succeeds when the event's and the packet's stream class are the same");
2548
2549         /*
2550          * It should be possible to set a packet created from the same
2551          * stream to an event with an existing packet.
2552          */
2553         packet2 = bt_ctf_packet_create(non_writer_stream);
2554         assert(packet2);
2555         ok(!bt_ctf_event_set_packet(event2, packet2),
2556                 "bt_ctf_event_set_packet() succeeds when the event's current packet has the same stream");
2557         BT_PUT(packet2);
2558
2559         /*
2560          * It should not be possible to set a packet created from a
2561          * different stream to an event with an existing packet.
2562          */
2563         non_writer_stream2 = bt_ctf_stream_create(non_writer_sc, "rj45");
2564         assert(non_writer_stream2);
2565         packet2 = bt_ctf_packet_create(non_writer_stream);
2566         assert(packet2);
2567         ok(!bt_ctf_event_set_packet(event2, packet2),
2568                 "bt_ctf_event_set_packet() fails when the event's current packet does not have the same stream");
2569
2570         bt_put(writer);
2571         bt_put(writer_trace);
2572         bt_put(writer_sc);
2573         bt_put(writer_stream);
2574         bt_put(writer_stream2);
2575         bt_put(non_writer_trace);
2576         bt_put(non_writer_sc);
2577         bt_put(non_writer_stream);
2578         bt_put(non_writer_stream2);
2579         bt_put(packet_stream);
2580         bt_put(writer_ec);
2581         bt_put(non_writer_ec);
2582         bt_put(event);
2583         bt_put(event2);
2584         bt_put(int_field);
2585         bt_put(empty_struct_ft);
2586         bt_put(writer_clock);
2587         bt_put(non_writer_clock_class);
2588         bt_put(packet);
2589         bt_put(packet2);
2590         recursive_rmdir(trace_path);
2591         g_free(trace_path);
2592 }
2593
2594 static
2595 void test_clock_utils(void)
2596 {
2597         int ret;
2598         struct bt_ctf_clock *clock = NULL;
2599
2600         clock = bt_ctf_clock_create("water");
2601         assert(clock);
2602         ret = bt_ctf_clock_set_offset_s(clock, 1234);
2603         assert(!ret);
2604         ret = bt_ctf_clock_set_offset(clock, 1000);
2605         assert(!ret);
2606         ret = bt_ctf_clock_set_frequency(clock, 1000000000);
2607         assert(!ret);
2608         ret = bt_ctf_clock_set_frequency(clock, 1534);
2609         assert(!ret);
2610
2611         BT_PUT(clock);
2612 }
2613
2614 void test_set_clock_non_writer_stream_class(void)
2615 {
2616         struct bt_ctf_clock *clock;
2617         struct bt_ctf_trace *trace;
2618         struct bt_ctf_stream_class *sc;
2619         int ret;
2620
2621         clock = bt_ctf_clock_create("the_clock");
2622         assert(clock);
2623
2624         trace = bt_ctf_trace_create();
2625         assert(trace);
2626
2627         sc = bt_ctf_stream_class_create(NULL);
2628         assert(sc);
2629
2630         ret = bt_ctf_stream_class_set_clock(sc, clock);
2631         assert(ret == 0);
2632
2633         ret = bt_ctf_trace_add_stream_class(trace, sc);
2634         ok(ret < 0,
2635                 "bt_ctf_trace_add_stream_class() fails with a stream class with a registered clock");
2636
2637         bt_put(clock);
2638         bt_put(trace);
2639         bt_put(sc);
2640 }
2641
2642 static
2643 void test_static_trace(void)
2644 {
2645         struct bt_ctf_trace *trace;
2646         struct bt_ctf_stream_class *stream_class;
2647         struct bt_ctf_stream_class *stream_class2;
2648         struct bt_ctf_stream *stream;
2649         struct bt_ctf_clock_class *clock_class;
2650         int ret;
2651
2652         trace = bt_ctf_trace_create();
2653         assert(trace);
2654         stream_class = bt_ctf_stream_class_create(NULL);
2655         assert(stream_class);
2656         ret = bt_ctf_stream_class_set_packet_context_type(stream_class, NULL);
2657         assert(ret == 0);
2658         ret = bt_ctf_trace_add_stream_class(trace, stream_class);
2659         assert(ret == 0);
2660         stream = bt_ctf_stream_create(stream_class, "hello");
2661         ok(stream, "bt_ctf_stream_create() succeeds with a non-static trace");
2662         bt_put(stream);
2663         ok(!bt_ctf_trace_is_static(trace),
2664                 "bt_ctf_trace_is_static() returns the expected value");
2665         ok(bt_ctf_trace_set_is_static(trace) == 0,
2666                 "bt_ctf_trace_set_is_static() succeeds");
2667         ok(bt_ctf_trace_is_static(trace),
2668                 "bt_ctf_trace_is_static() returns the expected value");
2669         clock_class = bt_ctf_clock_class_create("yes", 1000000000);
2670         assert(clock_class);
2671         stream_class2 = bt_ctf_stream_class_create(NULL);
2672         assert(stream_class2);
2673         ok(bt_ctf_trace_add_stream_class(trace, stream_class2),
2674                 "bt_ctf_trace_add_stream_class() fails with a static trace");
2675         ok(bt_ctf_trace_add_clock_class(trace, clock_class),
2676                 "bt_ctf_trace_add_clock_class() fails with a static trace");
2677         ok(!bt_ctf_stream_create(stream_class, "hello2"),
2678                 "bt_ctf_stream_create() fails with a static trace");
2679
2680         bt_put(trace);
2681         bt_put(stream_class);
2682         bt_put(stream_class2);
2683         bt_put(clock_class);
2684 }
2685
2686 static
2687 void trace_is_static_listener(struct bt_ctf_trace *trace, void *data)
2688 {
2689         *((int *) data) |= 1;
2690 }
2691
2692 static
2693 void trace_listener_removed(struct bt_ctf_trace *trace, void *data)
2694 {
2695         *((int *) data) |= 2;
2696 }
2697
2698 static
2699 void test_trace_is_static_listener(void)
2700 {
2701         struct bt_ctf_trace *trace;
2702         int ret;
2703         int called1 = 0;
2704         int called2 = 0;
2705         int called3 = 0;
2706         int called4 = 0;
2707         int listener1_id;
2708         int listener2_id;
2709         int listener3_id;
2710         int listener4_id;
2711
2712         trace = bt_ctf_trace_create();
2713         assert(trace);
2714         ret = bt_ctf_trace_add_is_static_listener(NULL,
2715                 trace_is_static_listener, trace_listener_removed, &called1);
2716         ok(ret < 0, "bt_ctf_trace_add_is_static_listener() handles NULL (trace)");
2717         ret = bt_ctf_trace_add_is_static_listener(trace, NULL,
2718                 trace_listener_removed, &called1);
2719         ok(ret < 0, "bt_ctf_trace_add_is_static_listener() handles NULL (listener)");
2720         listener1_id = bt_ctf_trace_add_is_static_listener(trace,
2721                 trace_is_static_listener, trace_listener_removed, &called1);
2722         ok(listener1_id >= 0, "bt_ctf_trace_add_is_static_listener() succeeds (1)");
2723         listener2_id = bt_ctf_trace_add_is_static_listener(trace,
2724                 trace_is_static_listener, trace_listener_removed, &called2);
2725         ok(listener2_id >= 0, "bt_ctf_trace_add_is_static_listener() succeeds (2)");
2726         listener3_id = bt_ctf_trace_add_is_static_listener(trace,
2727                 trace_is_static_listener, trace_listener_removed, &called3);
2728         ok(listener3_id >= 0, "bt_ctf_trace_add_is_static_listener() succeeds (3)");
2729         ret = bt_ctf_trace_remove_is_static_listener(NULL, 0);
2730         ok(ret < 0, "bt_ctf_trace_remove_is_static_listener() handles NULL (trace)");
2731         ret = bt_ctf_trace_remove_is_static_listener(trace, -2);
2732         ok(ret < 0, "bt_ctf_trace_remove_is_static_listener() handles invalid ID (negative)");
2733         ret = bt_ctf_trace_remove_is_static_listener(trace, 77);
2734         ok(ret < 0, "bt_ctf_trace_remove_is_static_listener() handles invalid ID (non existing)");
2735         ret = bt_ctf_trace_remove_is_static_listener(trace, listener2_id);
2736         ok(ret == 0, "bt_ctf_trace_remove_is_static_listener() succeeds");
2737         ok(called2 == 2, "bt_ctf_trace_remove_is_static_listener() calls the remove listener");
2738         listener4_id = bt_ctf_trace_add_is_static_listener(trace,
2739                 trace_is_static_listener, NULL, &called4);
2740         ok(listener4_id >= 0, "bt_ctf_trace_add_is_static_listener() succeeds (4)");
2741         ok(called1 == 0, "\"trace is static\" listener not called before the trace is made static (1)");
2742         ok(called2 == 2, "\"trace is static\" listener not called before the trace is made static (2)");
2743         ok(called3 == 0, "\"trace is static\" listener not called before the trace is made static (3)");
2744         ok(called4 == 0, "\"trace is static\" listener not called before the trace is made static (4)");
2745         ret = bt_ctf_trace_set_is_static(trace);
2746         assert(ret == 0);
2747         ret = bt_ctf_trace_add_is_static_listener(trace,
2748                 trace_is_static_listener, trace_listener_removed, &called1);
2749         ok(ret < 0,
2750                 "bt_ctf_trace_add_is_static_listener() fails when the trace is static");
2751         ok(called1 == 1, "\"trace is static\" listener called when the trace is made static (1)");
2752         ok(called2 == 2, "\"trace is static\" listener not called when the trace is made static (2)");
2753         ok(called3 == 1, "\"trace is static\" listener called when the trace is made static (3)");
2754         ok(called4 == 1, "\"trace is static\" listener called when the trace is made static (4)");
2755         called1 = 0;
2756         called2 = 0;
2757         called3 = 0;
2758         called4 = 0;
2759         bt_put(trace);
2760         ok(called1 == 2, "\"trace is static\" listener not called after the trace is put (1)");
2761         ok(called2 == 0, "\"trace is static\" listener not called after the trace is put (2)");
2762         ok(called3 == 2, "\"trace is static\" listener not called after the trace is put (3)");
2763         ok(called4 == 0, "\"trace is static\" listener not called after the trace is put (4)");
2764 }
2765
2766 static
2767 void test_trace_uuid(void)
2768 {
2769         struct bt_ctf_trace *trace;
2770         const unsigned char uuid[] = {
2771                 0x35, 0x92, 0x63, 0xab, 0xb4, 0xbe, 0x40, 0xb4,
2772                 0xb2, 0x60, 0xd3, 0xf1, 0x3b, 0xb0, 0xd8, 0x59,
2773         };
2774         const unsigned char *ret_uuid;
2775
2776         trace = bt_ctf_trace_create();
2777         assert(trace);
2778         ok(!bt_ctf_trace_get_uuid(NULL),
2779                 "bt_ctf_trace_get_uuid() handles NULL");
2780         ok(!bt_ctf_trace_get_uuid(trace),
2781                 "bt_ctf_trace_get_uuid() returns NULL initially");
2782         ok(bt_ctf_trace_set_uuid(NULL, uuid),
2783                 "bt_ctf_trace_set_uuid() handles NULL (trace)");
2784         ok(bt_ctf_trace_set_uuid(trace, NULL),
2785                 "bt_ctf_trace_set_uuid() handles NULL (UUID)");
2786         ok(bt_ctf_trace_set_uuid(trace, uuid) == 0,
2787                 "bt_ctf_trace_set_uuid() succeeds with a valid UUID");
2788         ret_uuid = bt_ctf_trace_get_uuid(trace);
2789         ok(ret_uuid, "bt_ctf_trace_get_uuid() returns a UUID");
2790         assert(ret_uuid);
2791         ok(memcmp(uuid, ret_uuid, 16) == 0,
2792                 "bt_ctf_trace_get_uuid() returns the expected UUID");
2793
2794         bt_put(trace);
2795 }
2796
2797 int main(int argc, char **argv)
2798 {
2799         const char *env_resize_length;
2800         gchar *trace_path;
2801         gchar *metadata_path;
2802         const char *clock_name = "test_clock";
2803         const char *clock_description = "This is a test clock";
2804         const char *returned_clock_name;
2805         const char *returned_clock_description;
2806         const uint64_t frequency = 1123456789;
2807         const int64_t offset_s = 13515309;
2808         const int64_t offset = 1234567;
2809         int64_t get_offset_s,
2810                 get_offset;
2811         const uint64_t precision = 10;
2812         const int is_absolute = 0xFF;
2813         char *metadata_string;
2814         struct bt_ctf_writer *writer;
2815         struct bt_utsname name = {"GNU/Linux", "testhost", "4.4.0-87-generic",
2816                 "#110-Ubuntu SMP Tue Jul 18 12:55:35 UTC 2017", "x86_64"};
2817         struct bt_ctf_clock *clock, *ret_clock;
2818         struct bt_ctf_clock_class *ret_clock_class;
2819         struct bt_ctf_stream_class *stream_class, *ret_stream_class;
2820         struct bt_ctf_stream *stream1;
2821         struct bt_ctf_stream *stream;
2822         const char *ret_string;
2823         const unsigned char *ret_uuid;
2824         unsigned char tmp_uuid[16] = { 0 };
2825         struct bt_ctf_field_type *packet_context_type,
2826                 *packet_context_field_type,
2827                 *packet_header_type,
2828                 *packet_header_field_type,
2829                 *integer_type,
2830                 *stream_event_context_type,
2831                 *ret_field_type,
2832                 *event_header_field_type;
2833         struct bt_ctf_field *packet_header, *packet_header_field;
2834         struct bt_ctf_trace *trace;
2835         int ret;
2836         int64_t ret_int64_t;
2837         struct bt_value *obj;
2838
2839         if (argc < 2) {
2840                 printf("Usage: tests-ctf-writer path_to_babeltrace\n");
2841                 return -1;
2842         }
2843
2844         env_resize_length = getenv("PACKET_RESIZE_TEST_LENGTH");
2845         if (env_resize_length) {
2846                 packet_resize_test_length =
2847                         (unsigned int) atoi(env_resize_length);
2848         }
2849
2850         plan_tests(NR_TESTS);
2851
2852         trace_path = g_build_filename(g_get_tmp_dir(), "ctfwriter_XXXXXX", NULL);
2853         if (!bt_mkdtemp(trace_path)) {
2854                 perror("# perror");
2855         }
2856
2857         metadata_path = g_build_filename(trace_path, "metadata", NULL);
2858
2859         writer = bt_ctf_writer_create(trace_path);
2860         ok(writer, "bt_ctf_create succeeds in creating trace with path");
2861
2862         ok(!bt_ctf_writer_get_trace(NULL),
2863                 "bt_ctf_writer_get_trace correctly handles NULL");
2864         trace = bt_ctf_writer_get_trace(writer);
2865         ok(bt_ctf_trace_set_native_byte_order(trace, BT_CTF_BYTE_ORDER_NATIVE),
2866                 "Cannot set a trace's byte order to BT_CTF_BYTE_ORDER_NATIVE");
2867         ok(bt_ctf_trace_set_native_byte_order(trace, BT_CTF_BYTE_ORDER_UNSPECIFIED),
2868                 "Cannot set a trace's byte order to BT_CTF_BYTE_ORDER_UNSPECIFIED");
2869         ok(trace,
2870                 "bt_ctf_writer_get_trace returns a bt_ctf_trace object");
2871         ok(bt_ctf_trace_set_native_byte_order(trace, BT_CTF_BYTE_ORDER_BIG_ENDIAN) == 0,
2872                 "Set a trace's byte order to big endian");
2873         ok(bt_ctf_trace_get_native_byte_order(trace) == BT_CTF_BYTE_ORDER_BIG_ENDIAN,
2874                 "bt_ctf_trace_get_native_byte_order returns a correct endianness");
2875
2876         /* Add environment context to the trace */
2877         ok(bt_ctf_writer_add_environment_field(writer, "host", name.nodename) == 0,
2878                 "Add host (%s) environment field to writer instance",
2879                 name.nodename);
2880         ok(bt_ctf_writer_add_environment_field(NULL, "test_field",
2881                 "test_value"),
2882                 "bt_ctf_writer_add_environment_field error with NULL writer");
2883         ok(bt_ctf_writer_add_environment_field(writer, NULL,
2884                 "test_value"),
2885                 "bt_ctf_writer_add_environment_field error with NULL field name");
2886         ok(bt_ctf_writer_add_environment_field(writer, "test_field",
2887                 NULL),
2888                 "bt_ctf_writer_add_environment_field error with NULL field value");
2889
2890         /* Test bt_ctf_trace_set_environment_field with an integer object */
2891         obj = bt_value_integer_create_init(23);
2892         assert(obj);
2893         ok(bt_ctf_trace_set_environment_field(NULL, "test_env_int_obj", obj),
2894                 "bt_ctf_trace_set_environment_field handles a NULL trace correctly");
2895         ok(bt_ctf_trace_set_environment_field(trace, NULL, obj),
2896                 "bt_ctf_trace_set_environment_field handles a NULL name correctly");
2897         ok(bt_ctf_trace_set_environment_field(trace, "test_env_int_obj", NULL),
2898                 "bt_ctf_trace_set_environment_field handles a NULL value correctly");
2899         ok(!bt_ctf_trace_set_environment_field(trace, "test_env_int_obj", obj),
2900                 "bt_ctf_trace_set_environment_field succeeds in adding an integer object");
2901         BT_PUT(obj);
2902
2903         /* Test bt_ctf_trace_set_environment_field with a string object */
2904         obj = bt_value_string_create_init("the value");
2905         assert(obj);
2906         ok(!bt_ctf_trace_set_environment_field(trace, "test_env_str_obj", obj),
2907                 "bt_ctf_trace_set_environment_field succeeds in adding a string object");
2908         BT_PUT(obj);
2909
2910         /* Test bt_ctf_trace_set_environment_field_integer */
2911         ok(bt_ctf_trace_set_environment_field_integer(NULL, "test_env_int",
2912                 -194875),
2913                 "bt_ctf_trace_set_environment_field_integer handles a NULL trace correctly");
2914         ok(bt_ctf_trace_set_environment_field_integer(trace, NULL, -194875),
2915                 "bt_ctf_trace_set_environment_field_integer handles a NULL name correctly");
2916         ok(!bt_ctf_trace_set_environment_field_integer(trace, "test_env_int",
2917                 -164973),
2918                 "bt_ctf_trace_set_environment_field_integer succeeds");
2919
2920         /* Test bt_ctf_trace_set_environment_field_string */
2921         ok(bt_ctf_trace_set_environment_field_string(NULL, "test_env_str",
2922                 "yeah"),
2923                 "bt_ctf_trace_set_environment_field_string handles a NULL trace correctly");
2924         ok(bt_ctf_trace_set_environment_field_string(trace, NULL, "yeah"),
2925                 "bt_ctf_trace_set_environment_field_string handles a NULL name correctly");
2926         ok(bt_ctf_trace_set_environment_field_string(trace, "test_env_str",
2927                 NULL),
2928                 "bt_ctf_trace_set_environment_field_string handles a NULL value correctly");
2929         ok(!bt_ctf_trace_set_environment_field_string(trace, "test_env_str",
2930                 "oh yeah"),
2931                 "bt_ctf_trace_set_environment_field_string succeeds");
2932
2933         /* Test bt_ctf_trace_get_environment_field_count */
2934         ok(bt_ctf_trace_get_environment_field_count(NULL) < 0,
2935                 "bt_ctf_trace_get_environment_field_count handles a NULL trace correctly");
2936         ok(bt_ctf_trace_get_environment_field_count(trace) == 5,
2937                 "bt_ctf_trace_get_environment_field_count returns a correct number of environment fields");
2938
2939         /* Test bt_ctf_trace_get_environment_field_name */
2940         ok(bt_ctf_trace_get_environment_field_name_by_index(NULL, 0) == NULL,
2941                 "bt_ctf_trace_get_environment_field_name handles a NULL trace correctly");
2942         ok(bt_ctf_trace_get_environment_field_name_by_index(trace, 5) == NULL,
2943                 "bt_ctf_trace_get_environment_field_name handles an invalid index correctly (too large)");
2944         ret_string = bt_ctf_trace_get_environment_field_name_by_index(trace, 0);
2945         ok(ret_string && !strcmp(ret_string, "host"),
2946                 "bt_ctf_trace_get_environment_field_name returns a correct field name");
2947         ret_string = bt_ctf_trace_get_environment_field_name_by_index(trace, 1);
2948         ok(ret_string && !strcmp(ret_string, "test_env_int_obj"),
2949                 "bt_ctf_trace_get_environment_field_name returns a correct field name");
2950         ret_string = bt_ctf_trace_get_environment_field_name_by_index(trace, 2);
2951         ok(ret_string && !strcmp(ret_string, "test_env_str_obj"),
2952                 "bt_ctf_trace_get_environment_field_name returns a correct field name");
2953         ret_string = bt_ctf_trace_get_environment_field_name_by_index(trace, 3);
2954         ok(ret_string && !strcmp(ret_string, "test_env_int"),
2955                 "bt_ctf_trace_get_environment_field_name returns a correct field name");
2956         ret_string = bt_ctf_trace_get_environment_field_name_by_index(trace, 4);
2957         ok(ret_string && !strcmp(ret_string, "test_env_str"),
2958                 "bt_ctf_trace_get_environment_field_name returns a correct field name");
2959
2960         /* Test bt_ctf_trace_get_environment_field_value */
2961         ok(bt_ctf_trace_get_environment_field_value_by_index(NULL, 0) == NULL,
2962                 "bt_ctf_trace_get_environment_field_value handles a NULL trace correctly");
2963         ok(bt_ctf_trace_get_environment_field_value_by_index(trace, 5) == NULL,
2964                 "bt_ctf_trace_get_environment_field_value handles an invalid index correctly (too large)");
2965         obj = bt_ctf_trace_get_environment_field_value_by_index(trace, 1);
2966         ret = bt_value_integer_get(obj, &ret_int64_t);
2967         ok(!ret && ret_int64_t == 23,
2968                 "bt_ctf_trace_get_environment_field_value succeeds in getting an integer value");
2969         BT_PUT(obj);
2970         obj = bt_ctf_trace_get_environment_field_value_by_index(trace, 2);
2971         ret = bt_value_string_get(obj, &ret_string);
2972         ok(!ret && ret_string && !strcmp(ret_string, "the value"),
2973                 "bt_ctf_trace_get_environment_field_value succeeds in getting a string value");
2974         BT_PUT(obj);
2975
2976         /* Test bt_ctf_trace_get_environment_field_value_by_name */
2977         ok(!bt_ctf_trace_get_environment_field_value_by_name(NULL,
2978                 "test_env_str"),
2979                 "bt_ctf_trace_get_environment_field_value_by_name handles a NULL trace correctly");
2980         ok(!bt_ctf_trace_get_environment_field_value_by_name(trace, NULL),
2981                 "bt_ctf_trace_get_environment_field_value_by_name handles a NULL name correctly");
2982         ok(!bt_ctf_trace_get_environment_field_value_by_name(trace, "oh oh"),
2983                 "bt_ctf_trace_get_environment_field_value_by_name returns NULL or an unknown field name");
2984         obj = bt_ctf_trace_get_environment_field_value_by_name(trace,
2985                 "test_env_str");
2986         ret = bt_value_string_get(obj, &ret_string);
2987         ok(!ret && ret_string && !strcmp(ret_string, "oh yeah"),
2988                 "bt_ctf_trace_get_environment_field_value_by_name succeeds in getting an existing field");
2989         BT_PUT(obj);
2990
2991         /* Test environment field replacement */
2992         ok(!bt_ctf_trace_set_environment_field_integer(trace, "test_env_int",
2993                 654321),
2994                 "bt_ctf_trace_set_environment_field_integer succeeds with an existing name");
2995         ok(bt_ctf_trace_get_environment_field_count(trace) == 5,
2996                 "bt_ctf_trace_set_environment_field_integer with an existing key does not increase the environment size");
2997         obj = bt_ctf_trace_get_environment_field_value_by_index(trace, 3);
2998         ret = bt_value_integer_get(obj, &ret_int64_t);
2999         ok(!ret && ret_int64_t == 654321,
3000                 "bt_ctf_trace_get_environment_field_value successfully replaces an existing field");
3001         BT_PUT(obj);
3002
3003         ok(bt_ctf_writer_add_environment_field(writer, "sysname", name.sysname)
3004                 == 0, "Add sysname (%s) environment field to writer instance",
3005                 name.sysname);
3006         ok(bt_ctf_writer_add_environment_field(writer, "nodename",
3007                 name.nodename) == 0,
3008                 "Add nodename (%s) environment field to writer instance",
3009                 name.nodename);
3010         ok(bt_ctf_writer_add_environment_field(writer, "release", name.release)
3011                 == 0, "Add release (%s) environment field to writer instance",
3012                 name.release);
3013         ok(bt_ctf_writer_add_environment_field(writer, "version", name.version)
3014                 == 0, "Add version (%s) environment field to writer instance",
3015                 name.version);
3016         ok(bt_ctf_writer_add_environment_field(writer, "machine", name.machine)
3017                 == 0, "Add machine (%s) environment field to writer istance",
3018                 name.machine);
3019
3020         /* Define a clock and add it to the trace */
3021         ok(bt_ctf_clock_create("signed") == NULL,
3022                 "Illegal clock name rejected");
3023         clock = bt_ctf_clock_create(clock_name);
3024         ok(clock, "Clock created sucessfully");
3025         returned_clock_name = bt_ctf_clock_get_name(clock);
3026         ok(returned_clock_name, "bt_ctf_clock_get_name returns a clock name");
3027         ok(returned_clock_name ? !strcmp(returned_clock_name, clock_name) : 0,
3028                 "Returned clock name is valid");
3029
3030         returned_clock_description = bt_ctf_clock_get_description(clock);
3031         ok(!returned_clock_description, "bt_ctf_clock_get_description returns NULL on an unset description");
3032         ok(bt_ctf_clock_set_description(clock, clock_description) == 0,
3033                 "Clock description set successfully");
3034
3035         returned_clock_description = bt_ctf_clock_get_description(clock);
3036         ok(returned_clock_description,
3037                 "bt_ctf_clock_get_description returns a description.");
3038         ok(returned_clock_description ?
3039                 !strcmp(returned_clock_description, clock_description) : 0,
3040                 "Returned clock description is valid");
3041
3042         ok(bt_ctf_clock_get_frequency(clock) == DEFAULT_CLOCK_FREQ,
3043                 "bt_ctf_clock_get_frequency returns the correct default frequency");
3044         ok(bt_ctf_clock_set_frequency(clock, frequency) == 0,
3045                 "Set clock frequency");
3046         ok(bt_ctf_clock_get_frequency(clock) == frequency,
3047                 "bt_ctf_clock_get_frequency returns the correct frequency once it is set");
3048
3049         ok(bt_ctf_clock_get_offset_s(clock, &get_offset_s) == 0,
3050                 "bt_ctf_clock_get_offset_s succeeds");
3051         ok(get_offset_s == DEFAULT_CLOCK_OFFSET_S,
3052                 "bt_ctf_clock_get_offset_s returns the correct default offset (in seconds)");
3053         ok(bt_ctf_clock_set_offset_s(clock, offset_s) == 0,
3054                 "Set clock offset (seconds)");
3055         ok(bt_ctf_clock_get_offset_s(clock, &get_offset_s) == 0,
3056                 "bt_ctf_clock_get_offset_s succeeds");
3057         ok(get_offset_s == offset_s,
3058                 "bt_ctf_clock_get_offset_s returns the correct default offset (in seconds) once it is set");
3059
3060         ok(bt_ctf_clock_get_offset(clock, &get_offset) == 0,
3061                 "bt_ctf_clock_get_offset succeeds");
3062         ok(get_offset == DEFAULT_CLOCK_OFFSET,
3063                 "bt_ctf_clock_get_offset returns the correct default offset (in ticks)");
3064         ok(bt_ctf_clock_set_offset(clock, offset) == 0, "Set clock offset");
3065         ok(bt_ctf_clock_get_offset(clock, &get_offset) == 0,
3066                 "bt_ctf_clock_get_offset succeeds");
3067         ok(get_offset == offset,
3068                 "bt_ctf_clock_get_offset returns the correct default offset (in ticks) once it is set");
3069
3070         ok(bt_ctf_clock_get_precision(clock) == DEFAULT_CLOCK_PRECISION,
3071                 "bt_ctf_clock_get_precision returns the correct default precision");
3072         ok(bt_ctf_clock_set_precision(clock, precision) == 0,
3073                 "Set clock precision");
3074         ok(bt_ctf_clock_get_precision(clock) == precision,
3075                 "bt_ctf_clock_get_precision returns the correct precision once it is set");
3076
3077         ok(bt_ctf_clock_get_is_absolute(clock) == DEFAULT_CLOCK_IS_ABSOLUTE,
3078                 "bt_ctf_clock_get_precision returns the correct default is_absolute attribute");
3079         ok(bt_ctf_clock_set_is_absolute(clock, is_absolute) == 0,
3080                 "Set clock absolute property");
3081         ok(bt_ctf_clock_get_is_absolute(clock) == !!is_absolute,
3082                 "bt_ctf_clock_get_precision returns the correct is_absolute attribute once it is set");
3083
3084         ok(bt_ctf_clock_set_time(clock, current_time) == 0,
3085                 "Set clock time");
3086
3087         ok(!bt_ctf_clock_get_name(NULL),
3088                 "bt_ctf_clock_get_name correctly handles NULL");
3089         ok(!bt_ctf_clock_get_description(NULL),
3090                 "bt_ctf_clock_get_description correctly handles NULL");
3091         ok(bt_ctf_clock_get_frequency(NULL) == -1ULL,
3092                 "bt_ctf_clock_get_frequency correctly handles NULL");
3093         ok(bt_ctf_clock_get_precision(NULL) == -1ULL,
3094                 "bt_ctf_clock_get_precision correctly handles NULL");
3095         ok(bt_ctf_clock_get_offset_s(NULL, &get_offset_s) < 0,
3096                 "bt_ctf_clock_get_offset_s correctly handles NULL clock");
3097         ok(bt_ctf_clock_get_offset_s(clock, NULL) < 0,
3098                 "bt_ctf_clock_get_offset_s correctly handles NULL output");
3099         ok(bt_ctf_clock_get_offset(NULL, &get_offset) < 0,
3100                 "bt_ctf_clock_get_offset correctly handles NULL clock");
3101         ok(bt_ctf_clock_get_offset(clock, NULL) < 0,
3102                 "bt_ctf_clock_get_offset correctly handles NULL output");
3103         ok(bt_ctf_clock_get_is_absolute(NULL) < 0,
3104                 "bt_ctf_clock_get_is_absolute correctly handles NULL");
3105
3106         ok(bt_ctf_clock_set_description(NULL, NULL) < 0,
3107                 "bt_ctf_clock_set_description correctly handles NULL clock");
3108         ok(bt_ctf_clock_set_frequency(NULL, frequency) < 0,
3109                 "bt_ctf_clock_set_frequency correctly handles NULL clock");
3110         ok(bt_ctf_clock_set_precision(NULL, precision) < 0,
3111                 "bt_ctf_clock_get_precision correctly handles NULL clock");
3112         ok(bt_ctf_clock_set_offset_s(NULL, offset_s) < 0,
3113                 "bt_ctf_clock_set_offset_s correctly handles NULL clock");
3114         ok(bt_ctf_clock_set_offset(NULL, offset) < 0,
3115                 "bt_ctf_clock_set_offset correctly handles NULL clock");
3116         ok(bt_ctf_clock_set_is_absolute(NULL, is_absolute) < 0,
3117                 "bt_ctf_clock_set_is_absolute correctly handles NULL clock");
3118         ok(bt_ctf_clock_set_time(NULL, current_time) < 0,
3119                 "bt_ctf_clock_set_time correctly handles NULL clock");
3120         ok(bt_ctf_clock_get_uuid(NULL) == NULL,
3121                 "bt_ctf_clock_get_uuid correctly handles NULL clock");
3122         ret_uuid = bt_ctf_clock_get_uuid(clock);
3123         ok(ret_uuid,
3124                 "bt_ctf_clock_get_uuid returns a UUID");
3125         if (ret_uuid) {
3126                 memcpy(tmp_uuid, ret_uuid, sizeof(tmp_uuid));
3127                 /* Slightly modify UUID */
3128                 tmp_uuid[sizeof(tmp_uuid) - 1]++;
3129         }
3130
3131         ok(bt_ctf_clock_set_uuid(NULL, tmp_uuid) < 0,
3132                 "bt_ctf_clock_set_uuid correctly handles a NULL clock");
3133         ok(bt_ctf_clock_set_uuid(clock, NULL) < 0,
3134                 "bt_ctf_clock_set_uuid correctly handles a NULL UUID");
3135         ok(bt_ctf_clock_set_uuid(clock, tmp_uuid) == 0,
3136                 "bt_ctf_clock_set_uuid sets a new uuid successfully");
3137         ret_uuid = bt_ctf_clock_get_uuid(clock);
3138         ok(ret_uuid,
3139                 "bt_ctf_clock_get_uuid returns a UUID after setting a new one");
3140         ok(uuid_match(ret_uuid, tmp_uuid),
3141                 "bt_ctf_clock_get_uuid returns the correct UUID after setting a new one");
3142
3143         /* Define a stream class */
3144         stream_class = bt_ctf_stream_class_create("test_stream");
3145
3146         ok(bt_ctf_stream_class_get_name(NULL) == NULL,
3147                 "bt_ctf_stream_class_get_name handles NULL correctly");
3148         ret_string = bt_ctf_stream_class_get_name(stream_class);
3149         ok(ret_string && !strcmp(ret_string, "test_stream"),
3150                 "bt_ctf_stream_class_get_name returns a correct stream class name");
3151
3152         ok(bt_ctf_stream_class_get_clock(stream_class) == NULL,
3153                 "bt_ctf_stream_class_get_clock returns NULL when a clock was not set");
3154         ok(bt_ctf_stream_class_get_clock(NULL) == NULL,
3155                 "bt_ctf_stream_class_get_clock handles NULL correctly");
3156
3157         ok(stream_class, "Create stream class");
3158         ok(bt_ctf_stream_class_set_clock(stream_class, clock) == 0,
3159                 "Set a stream class' clock");
3160         ret_clock = bt_ctf_stream_class_get_clock(stream_class);
3161         ok(ret_clock == clock,
3162                 "bt_ctf_stream_class_get_clock returns a correct clock");
3163         bt_put(ret_clock);
3164
3165         /* Test the event fields and event types APIs */
3166         type_field_tests();
3167
3168         /* Test fields copying */
3169         field_copy_tests();
3170
3171         ok(bt_ctf_stream_class_get_id(stream_class) < 0,
3172                 "bt_ctf_stream_class_get_id returns an error when no id is set");
3173         ok(bt_ctf_stream_class_get_id(NULL) < 0,
3174                 "bt_ctf_stream_class_get_id handles NULL correctly");
3175         ok(bt_ctf_stream_class_set_id(NULL, 123) < 0,
3176                 "bt_ctf_stream_class_set_id handles NULL correctly");
3177         ok(bt_ctf_stream_class_set_id(stream_class, 123) == 0,
3178                 "Set an stream class' id");
3179         ok(bt_ctf_stream_class_get_id(stream_class) == 123,
3180                 "bt_ctf_stream_class_get_id returns the correct value");
3181
3182         /* Validate default event header fields */
3183         ok(bt_ctf_stream_class_get_event_header_type(NULL) == NULL,
3184                 "bt_ctf_stream_class_get_event_header_type handles NULL correctly");
3185         ret_field_type = bt_ctf_stream_class_get_event_header_type(
3186                 stream_class);
3187         ok(ret_field_type,
3188                 "bt_ctf_stream_class_get_event_header_type returns an event header type");
3189         ok(bt_ctf_field_type_get_type_id(ret_field_type) == BT_CTF_FIELD_TYPE_ID_STRUCT,
3190                 "Default event header type is a structure");
3191         event_header_field_type =
3192                 bt_ctf_field_type_structure_get_field_type_by_name(
3193                 ret_field_type, "id");
3194         ok(event_header_field_type,
3195                 "Default event header type contains an \"id\" field");
3196         ok(bt_ctf_field_type_get_type_id(
3197                 event_header_field_type) == BT_CTF_FIELD_TYPE_ID_INTEGER,
3198                 "Default event header \"id\" field is an integer");
3199         bt_put(event_header_field_type);
3200         event_header_field_type =
3201                 bt_ctf_field_type_structure_get_field_type_by_name(
3202                 ret_field_type, "timestamp");
3203         ok(event_header_field_type,
3204                 "Default event header type contains a \"timestamp\" field");
3205         ok(bt_ctf_field_type_get_type_id(
3206                 event_header_field_type) == BT_CTF_FIELD_TYPE_ID_INTEGER,
3207                 "Default event header \"timestamp\" field is an integer");
3208         bt_put(event_header_field_type);
3209         bt_put(ret_field_type);
3210
3211         /* Add a custom trace packet header field */
3212         ok(bt_ctf_trace_get_packet_header_type(NULL) == NULL,
3213                 "bt_ctf_trace_get_packet_header_type handles NULL correctly");
3214         packet_header_type = bt_ctf_trace_get_packet_header_type(trace);
3215         ok(packet_header_type,
3216                 "bt_ctf_trace_get_packet_header_type returns a packet header");
3217         ok(bt_ctf_field_type_get_type_id(packet_header_type) == BT_CTF_FIELD_TYPE_ID_STRUCT,
3218                 "bt_ctf_trace_get_packet_header_type returns a packet header of type struct");
3219         ret_field_type = bt_ctf_field_type_structure_get_field_type_by_name(
3220                 packet_header_type, "magic");
3221         ok(ret_field_type, "Default packet header type contains a \"magic\" field");
3222         bt_put(ret_field_type);
3223         ret_field_type = bt_ctf_field_type_structure_get_field_type_by_name(
3224                 packet_header_type, "uuid");
3225         ok(ret_field_type, "Default packet header type contains a \"uuid\" field");
3226         bt_put(ret_field_type);
3227         ret_field_type = bt_ctf_field_type_structure_get_field_type_by_name(
3228                 packet_header_type, "stream_id");
3229         ok(ret_field_type, "Default packet header type contains a \"stream_id\" field");
3230         bt_put(ret_field_type);
3231
3232         packet_header_field_type = bt_ctf_field_type_integer_create(22);
3233         ok(!bt_ctf_field_type_structure_add_field(packet_header_type,
3234                 packet_header_field_type, "custom_trace_packet_header_field"),
3235                 "Added a custom trace packet header field successfully");
3236
3237         ok(bt_ctf_trace_set_packet_header_type(NULL, packet_header_type) < 0,
3238                 "bt_ctf_trace_set_packet_header_type handles a NULL trace correctly");
3239         ok(!bt_ctf_trace_set_packet_header_type(trace, packet_header_type),
3240                 "Set a trace packet_header_type successfully");
3241
3242         ok(bt_ctf_stream_class_get_packet_context_type(NULL) == NULL,
3243                 "bt_ctf_stream_class_get_packet_context_type handles NULL correctly");
3244
3245         /* Add a custom field to the stream class' packet context */
3246         packet_context_type = bt_ctf_stream_class_get_packet_context_type(stream_class);
3247         ok(packet_context_type,
3248                 "bt_ctf_stream_class_get_packet_context_type returns a packet context type.");
3249         ok(bt_ctf_field_type_get_type_id(packet_context_type) == BT_CTF_FIELD_TYPE_ID_STRUCT,
3250                 "Packet context is a structure");
3251
3252         ok(bt_ctf_stream_class_set_packet_context_type(NULL, packet_context_type),
3253                 "bt_ctf_stream_class_set_packet_context_type handles a NULL stream class correctly");
3254
3255         integer_type = bt_ctf_field_type_integer_create(32);
3256         ok(bt_ctf_stream_class_set_packet_context_type(stream_class,
3257                 integer_type) < 0,
3258                 "bt_ctf_stream_class_set_packet_context_type rejects a packet context that is not a structure");
3259         /* Create a "uint5_t" equivalent custom packet context field */
3260         packet_context_field_type = bt_ctf_field_type_integer_create(5);
3261
3262         ret = bt_ctf_field_type_structure_add_field(packet_context_type,
3263                 packet_context_field_type, "custom_packet_context_field");
3264         ok(ret == 0, "Packet context field added successfully");
3265
3266         /* Define a stream event context containing a my_integer field. */
3267         ok(bt_ctf_stream_class_get_event_context_type(NULL) == NULL,
3268                 "bt_ctf_stream_class_get_event_context_type handles NULL correctly");
3269         stream_event_context_type = bt_ctf_field_type_structure_create();
3270         bt_ctf_field_type_structure_add_field(stream_event_context_type,
3271                 integer_type, "common_event_context");
3272
3273         ok(bt_ctf_stream_class_set_event_context_type(NULL,
3274                 stream_event_context_type) < 0,
3275                 "bt_ctf_stream_class_set_event_context_type handles a NULL stream_class correctly");
3276         ok(bt_ctf_stream_class_set_event_context_type(stream_class,
3277                 integer_type) < 0,
3278                 "bt_ctf_stream_class_set_event_context_type validates that the event context os a structure");
3279
3280         ok(bt_ctf_stream_class_set_event_context_type(
3281                 stream_class, stream_event_context_type) == 0,
3282                 "Set a new stream event context type");
3283         ret_field_type = bt_ctf_stream_class_get_event_context_type(
3284                 stream_class);
3285         ok(ret_field_type == stream_event_context_type,
3286                 "bt_ctf_stream_class_get_event_context_type returns the correct field type.");
3287         bt_put(ret_field_type);
3288
3289         /* Instantiate a stream and append events */
3290         ret = bt_ctf_writer_add_clock(writer, clock);
3291         assert(ret == 0);
3292         ok(bt_ctf_trace_get_stream_count(trace) == 0,
3293                 "bt_ctf_trace_get_stream_count() succeeds and returns the correct value (0)");
3294         stream1 = bt_ctf_writer_create_stream(writer, stream_class);
3295         ok(stream1, "Instanciate a stream class from writer");
3296         ok(bt_ctf_trace_get_stream_count(trace) == 1,
3297                 "bt_ctf_trace_get_stream_count() succeeds and returns the correct value (1)");
3298         stream = bt_ctf_trace_get_stream_by_index(trace, 0);
3299         ok(stream == stream1,
3300                 "bt_ctf_trace_get_stream_by_index() succeeds and returns the correct value");
3301         BT_PUT(stream);
3302
3303         /*
3304          * Creating a stream through a writer adds the given stream
3305          * class to the writer's trace, thus registering the stream
3306          * class's clock to the trace.
3307          */
3308         ok(bt_ctf_trace_get_clock_class_count(NULL) < 0,
3309                 "bt_ctf_trace_get_clock_class_count correctly handles NULL");
3310         ok(bt_ctf_trace_get_clock_class_count(trace) == 1,
3311                 "bt_ctf_trace_get_clock_class_count returns the correct number of clocks");
3312         ok(!bt_ctf_trace_get_clock_class_by_index(NULL, 0),
3313                 "bt_ctf_trace_get_clock_class correctly handles NULL");
3314         ok(!bt_ctf_trace_get_clock_class_by_index(trace, 1),
3315                 "bt_ctf_trace_get_clock_class correctly handles out of bound accesses");
3316         ret_clock_class = bt_ctf_trace_get_clock_class_by_index(trace, 0);
3317         ok(strcmp(bt_ctf_clock_class_get_name(ret_clock_class),
3318                 bt_ctf_clock_get_name(clock)) == 0,
3319                 "bt_ctf_trace_get_clock_class returns the right clock instance");
3320         bt_put(ret_clock_class);
3321         ok(!bt_ctf_trace_get_clock_class_by_name(trace, NULL),
3322                 "bt_ctf_trace_get_clock_class_by_name correctly handles NULL (trace)");
3323         ok(!bt_ctf_trace_get_clock_class_by_name(NULL, clock_name),
3324                 "bt_ctf_trace_get_clock_by_name correctly handles NULL (clock name)");
3325         ok(!bt_ctf_trace_get_clock_class_by_name(NULL, NULL),
3326                 "bt_ctf_trace_get_clock_by_name correctly handles NULL (both)");
3327         ret_clock_class = bt_ctf_trace_get_clock_class_by_name(trace, clock_name);
3328         ok(strcmp(bt_ctf_clock_class_get_name(ret_clock_class),
3329                 bt_ctf_clock_get_name(clock)) == 0,
3330                 "bt_ctf_trace_get_clock_class returns the right clock instance");
3331         bt_put(ret_clock_class);
3332         ok(!bt_ctf_trace_get_clock_class_by_name(trace, "random"),
3333                 "bt_ctf_trace_get_clock_by_name fails when the requested clock doesn't exist");
3334
3335         ok(bt_ctf_stream_get_class(NULL) == NULL,
3336                 "bt_ctf_stream_get_class correctly handles NULL");
3337         ret_stream_class = bt_ctf_stream_get_class(stream1);
3338         ok(ret_stream_class,
3339                 "bt_ctf_stream_get_class returns a stream class");
3340         ok(ret_stream_class == stream_class,
3341                 "Returned stream class is of the correct type");
3342
3343         /*
3344          * Packet header, packet context, event header, and stream
3345          * event context types were copied for the resolving
3346          * process
3347          */
3348         BT_PUT(packet_header_type);
3349         BT_PUT(packet_context_type);
3350         BT_PUT(stream_event_context_type);
3351         packet_header_type = bt_ctf_trace_get_packet_header_type(trace);
3352         assert(packet_header_type);
3353         packet_context_type =
3354                 bt_ctf_stream_class_get_packet_context_type(stream_class);
3355         assert(packet_context_type);
3356         stream_event_context_type =
3357                 bt_ctf_stream_class_get_event_context_type(stream_class);
3358         assert(stream_event_context_type);
3359
3360         /*
3361          * Try to modify the packet context type after a stream has been
3362          * created.
3363          */
3364         ret = bt_ctf_field_type_structure_add_field(packet_header_type,
3365                 packet_header_field_type, "should_fail");
3366         ok(ret < 0,
3367                 "Trace packet header type can't be modified once a stream has been instanciated");
3368
3369         /*
3370          * Try to modify the packet context type after a stream has been
3371          * created.
3372          */
3373         ret = bt_ctf_field_type_structure_add_field(packet_context_type,
3374                 packet_context_field_type, "should_fail");
3375         ok(ret < 0,
3376                 "Packet context type can't be modified once a stream has been instanciated");
3377
3378         /*
3379          * Try to modify the stream event context type after a stream has been
3380          * created.
3381          */
3382         ret = bt_ctf_field_type_structure_add_field(stream_event_context_type,
3383                 integer_type, "should_fail");
3384         ok(ret < 0,
3385                 "Stream event context type can't be modified once a stream has been instanciated");
3386
3387         /* Should fail after instanciating a stream (frozen) */
3388         ok(bt_ctf_stream_class_set_clock(stream_class, clock),
3389                 "Changes to a stream class that was already instantiated fail");
3390
3391         /* Populate the custom packet header field only once for all tests */
3392         ok(bt_ctf_stream_get_packet_header(NULL) == NULL,
3393                 "bt_ctf_stream_get_packet_header handles NULL correctly");
3394         packet_header = bt_ctf_stream_get_packet_header(stream1);
3395         ok(packet_header,
3396                 "bt_ctf_stream_get_packet_header returns a packet header");
3397         ret_field_type = bt_ctf_field_get_type(packet_header);
3398         ok(ret_field_type == packet_header_type,
3399                 "Stream returns a packet header of the appropriate type");
3400         bt_put(ret_field_type);
3401         packet_header_field = bt_ctf_field_structure_get_field(packet_header,
3402                 "custom_trace_packet_header_field");
3403         ok(packet_header_field,
3404                 "Packet header structure contains a custom field with the appropriate name");
3405         ret_field_type = bt_ctf_field_get_type(packet_header_field);
3406         ok(bt_ctf_field_type_compare(ret_field_type, packet_header_field_type) == 0,
3407                 "Custom packet header field is of the expected type");
3408         ok(!bt_ctf_field_unsigned_integer_set_value(packet_header_field,
3409                 54321), "Set custom packet header value successfully");
3410         ok(bt_ctf_stream_set_packet_header(stream1, NULL) < 0,
3411                 "bt_ctf_stream_set_packet_header handles a NULL packet header correctly");
3412         ok(bt_ctf_stream_set_packet_header(NULL, packet_header) < 0,
3413                 "bt_ctf_stream_set_packet_header handles a NULL stream correctly");
3414         ok(bt_ctf_stream_set_packet_header(stream1, packet_header_field) < 0,
3415                 "bt_ctf_stream_set_packet_header rejects a packet header of the wrong type");
3416         ok(!bt_ctf_stream_set_packet_header(stream1, packet_header),
3417                 "Successfully set a stream's packet header");
3418
3419         ok(bt_ctf_writer_add_environment_field(writer, "new_field", "test") == 0,
3420                 "Add environment field to writer after stream creation");
3421
3422         test_clock_utils();
3423
3424         test_create_writer_vs_non_writer_mode();
3425
3426         test_set_clock_non_writer_stream_class();
3427
3428         test_instanciate_event_before_stream(writer, clock);
3429
3430         append_simple_event(stream_class, stream1, clock);
3431
3432         packet_resize_test(stream_class, stream1, clock);
3433
3434         append_complex_event(stream_class, stream1, clock);
3435
3436         append_existing_event_class(stream_class);
3437
3438         test_empty_stream(writer);
3439
3440         test_custom_event_header_stream(writer, clock);
3441
3442         test_static_trace();
3443
3444         test_trace_is_static_listener();
3445
3446         test_trace_uuid();
3447
3448         metadata_string = bt_ctf_writer_get_metadata_string(writer);
3449         ok(metadata_string, "Get metadata string");
3450
3451         bt_ctf_writer_flush_metadata(writer);
3452
3453         bt_put(clock);
3454         bt_put(ret_stream_class);
3455         bt_put(writer);
3456         bt_put(stream1);
3457         bt_put(packet_context_type);
3458         bt_put(packet_context_field_type);
3459         bt_put(integer_type);
3460         bt_put(stream_event_context_type);
3461         bt_put(ret_field_type);
3462         bt_put(packet_header_type);
3463         bt_put(packet_header_field_type);
3464         bt_put(packet_header);
3465         bt_put(packet_header_field);
3466         bt_put(trace);
3467         free(metadata_string);
3468         bt_put(stream_class);
3469
3470         validate_trace(argv[1], trace_path);
3471
3472         recursive_rmdir(trace_path);
3473         g_free(trace_path);
3474         g_free(metadata_path);
3475
3476         return 0;
3477 }