Remove Babeltrace 1 files and reorganize the tree
[babeltrace.git] / tests / lib / test_ctf_writer.c
index ae0f9705e273b204fb3bd1cae7ab9452469ec649..d139b4ffba0fbbd4d60ce73928b9eb081da7e8de 100644 (file)
@@ -1,9 +1,9 @@
 /*
- * test-ctf-writer.c
+ * test_ctf_writer.c
  *
  * CTF Writer test
  *
- * Copyright 2013 - 2015 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright 2013 - 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -27,6 +27,7 @@
 #include <babeltrace/ctf-writer/event-fields.h>
 #include <babeltrace/ctf-writer/stream-class.h>
 #include <babeltrace/ctf-ir/packet.h>
+#include <babeltrace/ctf-ir/clock-class.h>
 #include <babeltrace/ref.h>
 #include <babeltrace/ctf/events.h>
 #include <babeltrace/values.h>
@@ -59,7 +60,7 @@
 #define DEFAULT_CLOCK_TIME 0
 #define DEFAULT_CLOCK_VALUE 0
 
-#define NR_TESTS 609
+#define NR_TESTS 601
 
 static int64_t current_time = 42;
 
@@ -85,123 +86,6 @@ end:
        return ret;
 }
 
-static
-void validate_metadata(char *parser_path, char *metadata_path)
-{
-       int ret = 0;
-       char parser_output_path[] = "/tmp/parser_output_XXXXXX";
-       int parser_output_fd = -1, metadata_fd = -1;
-
-       if (!metadata_path) {
-               ret = -1;
-               goto result;
-       }
-
-       parser_output_fd = mkstemp(parser_output_path);
-       metadata_fd = open(metadata_path, O_RDONLY);
-
-       unlink(parser_output_path);
-
-       if (parser_output_fd == -1 || metadata_fd == -1) {
-               diag("Failed create temporary files for metadata parsing.");
-               ret = -1;
-               goto result;
-       }
-
-       pid_t pid = fork();
-       if (pid) {
-               int status = 0;
-               waitpid(pid, &status, 0);
-               ret = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
-       } else {
-               /* ctf-parser-test expects a metadata string on stdin. */
-               ret = dup2(metadata_fd, STDIN_FILENO);
-               if (ret < 0) {
-                       perror("# dup2 metadata_fd to STDIN");
-                       goto result;
-               }
-
-               ret = dup2(parser_output_fd, STDOUT_FILENO);
-               if (ret < 0) {
-                       perror("# dup2 parser_output_fd to STDOUT");
-                       goto result;
-               }
-
-               ret = dup2(parser_output_fd, STDERR_FILENO);
-               if (ret < 0) {
-                       perror("# dup2 parser_output_fd to STDERR");
-                       goto result;
-               }
-
-               execl(parser_path, "ctf-parser-test", NULL);
-               perror("# Could not launch the ctf metadata parser process");
-               exit(-1);
-       }
-result:
-       ok(ret == 0, "Metadata string is valid");
-
-       if (ret && metadata_fd >= 0 && parser_output_fd >= 0) {
-               char *line;
-               size_t len = METADATA_LINE_SIZE;
-               FILE *metadata_fp = NULL, *parser_output_fp = NULL;
-
-               metadata_fp = fdopen(metadata_fd, "r");
-               if (!metadata_fp) {
-                       perror("fdopen on metadata_fd");
-                       goto close_fp;
-               }
-               metadata_fd = -1;
-
-               parser_output_fp = fdopen(parser_output_fd, "r");
-               if (!parser_output_fp) {
-                       perror("fdopen on parser_output_fd");
-                       goto close_fp;
-               }
-               parser_output_fd = -1;
-
-               line = malloc(len);
-               if (!line) {
-                       diag("malloc failure");
-               }
-
-               rewind(metadata_fp);
-
-               /* Output the metadata and parser output as diagnostic */
-               while (bt_getline(&line, &len, metadata_fp) > 0) {
-                       fprintf(stderr, "# %s", line);
-               }
-
-               rewind(parser_output_fp);
-               while (bt_getline(&line, &len, parser_output_fp) > 0) {
-                       fprintf(stderr, "# %s", line);
-               }
-
-               free(line);
-close_fp:
-               if (metadata_fp) {
-                       if (fclose(metadata_fp)) {
-                               diag("fclose failure");
-                       }
-               }
-               if (parser_output_fp) {
-                       if (fclose(parser_output_fp)) {
-                               diag("fclose failure");
-                       }
-               }
-       }
-
-       if (parser_output_fd >= 0) {
-               if (close(parser_output_fd)) {
-                       diag("close error");
-               }
-       }
-       if (metadata_fd >= 0) {
-               if (close(metadata_fd)) {
-                       diag("close error");
-               }
-       }
-}
-
 static
 void validate_trace(char *parser_path, char *trace_path)
 {
@@ -319,7 +203,6 @@ void append_simple_event(struct bt_ctf_stream_class *stream_class,
        double ret_double;
        int64_t ret_range_start_int64_t, ret_range_end_int64_t;
        uint64_t ret_range_start_uint64_t, ret_range_end_uint64_t;
-       struct bt_ctf_clock *ret_clock;
        struct bt_ctf_event_class *ret_event_class;
        struct bt_ctf_field *packet_context;
        struct bt_ctf_field *packet_context_field;
@@ -330,11 +213,13 @@ void append_simple_event(struct bt_ctf_stream_class *stream_class,
        struct bt_ctf_field_type *ep_integer_field_type = NULL;
        struct bt_ctf_field_type *ep_enum_field_type = NULL;
        struct bt_ctf_field_type *ep_enum_field_unsigned_type = NULL;
+       struct bt_ctf_field_type_enumeration_mapping_iterator *iter = NULL;
        int ret;
 
        ok(uint_12_type, "Create an unsigned integer type");
 
-       bt_ctf_field_type_integer_set_signed(int_64_type, 1);
+       ok(!bt_ctf_field_type_integer_set_signed(int_64_type, 1),
+               "Set signed 64 bit integer signedness to true");
        ok(int_64_type, "Create a signed integer type");
        enum_type = bt_ctf_field_type_enumeration_create(int_64_type);
 
@@ -380,44 +265,50 @@ void append_simple_event(struct bt_ctf_stream_class *stream_class,
        bt_ctf_field_type_enumeration_add_mapping(enum_type, mapping_name_test,
                42, 42);
        ok(bt_ctf_field_type_enumeration_add_mapping(enum_type, mapping_name_test,
-               43, 51), "bt_ctf_field_type_enumeration_add_mapping rejects duplicate mapping names");
+               43, 51) == 0, "bt_ctf_field_type_enumeration_add_mapping accepts duplicate mapping names");
        ok(bt_ctf_field_type_enumeration_add_mapping(enum_type, "something",
-               -500, -400), "bt_ctf_field_type_enumeration_add_mapping rejects overlapping enum entries");
+               -500, -400) == 0, "bt_ctf_field_type_enumeration_add_mapping accepts overlapping enum entries");
        ok(bt_ctf_field_type_enumeration_add_mapping(enum_type, mapping_name_test,
                -54, -55), "bt_ctf_field_type_enumeration_add_mapping rejects mapping where end < start");
        bt_ctf_field_type_enumeration_add_mapping(enum_type, "another entry", -42000, -13000);
 
-       ok(bt_ctf_field_type_enumeration_get_mapping_index_by_value(NULL, -42) < 0,
-               "bt_ctf_field_type_enumeration_get_mapping_index_by_value handles a NULL field type correctly");
-       ok(bt_ctf_field_type_enumeration_get_mapping_index_by_value(enum_type, 1000000) < 0,
-               "bt_ctf_field_type_enumeration_get_mapping_index_by_value handles invalid values correctly");
-       ok(bt_ctf_field_type_enumeration_get_mapping_index_by_value(enum_type, -55) == 1,
-               "bt_ctf_field_type_enumeration_get_mapping_index_by_value returns the correct index");
+       iter = bt_ctf_field_type_enumeration_find_mappings_by_signed_value(NULL, -42);
+       ok(iter == NULL, "bt_ctf_field_type_enumeration_find_mappings_by_signed_value handles a NULL field type correctly");
+
+       iter = bt_ctf_field_type_enumeration_find_mappings_by_signed_value(enum_type, -4200000);
+       ok(iter == NULL, "bt_ctf_field_type_enumeration_find_mappings_by_signed_value rejects non-mapped values");
+
+       iter = bt_ctf_field_type_enumeration_find_mappings_by_signed_value(enum_type, 3);
+       ok(iter != NULL, "bt_ctf_field_type_enumeration_find_mappings_by_signed_value succeeds with mapped value");
+       ok(bt_ctf_field_type_enumeration_mapping_iterator_get_signed(iter, NULL, NULL, NULL) == 0,
+               "bt_ctf_field_type_enumeration_mapping_iterator_get_signed handles mapped values correctly");
+       BT_PUT(iter);
 
        ok(bt_ctf_event_class_add_field(simple_event_class, enum_type,
                "enum_field") == 0, "Add signed enumeration field to event");
 
-       ok(bt_ctf_field_type_enumeration_get_mapping(NULL, 0, &ret_char,
+       ok(bt_ctf_field_type_enumeration_get_mapping_signed(NULL, 0, &ret_char,
                &ret_range_start_int64_t, &ret_range_end_int64_t) < 0,
-               "bt_ctf_field_type_enumeration_get_mapping handles a NULL enumeration correctly");
-       ok(bt_ctf_field_type_enumeration_get_mapping(enum_type, 0, NULL,
-               &ret_range_start_int64_t, &ret_range_end_int64_t) < 0,
-               "bt_ctf_field_type_enumeration_get_mapping handles a NULL string correctly");
-       ok(bt_ctf_field_type_enumeration_get_mapping(enum_type, 0, &ret_char,
-               NULL, &ret_range_end_int64_t) < 0,
-               "bt_ctf_field_type_enumeration_get_mapping handles a NULL start correctly");
-       ok(bt_ctf_field_type_enumeration_get_mapping(enum_type, 0, &ret_char,
-               &ret_range_start_int64_t, NULL) < 0,
-               "bt_ctf_field_type_enumeration_get_mapping handles a NULL end correctly");
-       ok(bt_ctf_field_type_enumeration_get_mapping(enum_type, 5, &ret_char,
+               "bt_ctf_field_type_enumeration_get_mapping_signed handles a NULL enumeration correctly");
+       ok(bt_ctf_field_type_enumeration_get_mapping_signed(enum_type, 0, NULL,
+               &ret_range_start_int64_t, &ret_range_end_int64_t) == 0,
+               "bt_ctf_field_type_enumeration_get_mapping_signed handles a NULL string correctly");
+       ok(bt_ctf_field_type_enumeration_get_mapping_signed(enum_type, 0, &ret_char,
+               NULL, &ret_range_end_int64_t) == 0,
+               "bt_ctf_field_type_enumeration_get_mapping_signed handles a NULL start correctly");
+       ok(bt_ctf_field_type_enumeration_get_mapping_signed(enum_type, 0, &ret_char,
+               &ret_range_start_int64_t, NULL) == 0,
+               "bt_ctf_field_type_enumeration_get_mapping_signed handles a NULL end correctly");
+       /* Assumes entries are sorted by range_start values. */
+       ok(bt_ctf_field_type_enumeration_get_mapping_signed(enum_type, 6, &ret_char,
                &ret_range_start_int64_t, &ret_range_end_int64_t) == 0,
-               "bt_ctf_field_type_enumeration_get_mapping returns a value");
+               "bt_ctf_field_type_enumeration_get_mapping_signed returns a value");
        ok(!strcmp(ret_char, mapping_name_test),
-               "bt_ctf_field_type_enumeration_get_mapping returns a correct mapping name");
+               "bt_ctf_field_type_enumeration_get_mapping_signed returns a correct mapping name");
        ok(ret_range_start_int64_t == 42,
-               "bt_ctf_field_type_enumeration_get_mapping returns a correct mapping start");
+               "bt_ctf_field_type_enumeration_get_mapping_signed returns a correct mapping start");
        ok(ret_range_end_int64_t == 42,
-               "bt_ctf_field_type_enumeration_get_mapping returns a correct mapping end");
+               "bt_ctf_field_type_enumeration_get_mapping_signed returns a correct mapping end");
 
        ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned,
                "escaping; \"test\"", 0, 0) == 0,
@@ -431,9 +322,9 @@ void append_simple_event(struct bt_ctf_stream_class *stream_class,
        bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, mapping_name_test,
                42, 42);
        ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, mapping_name_test,
-               43, 51), "bt_ctf_field_type_enumeration_add_mapping_unsigned rejects duplicate mapping names");
+               43, 51) == 0, "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts duplicate mapping names");
        ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, "something",
-               7, 8), "bt_ctf_field_type_enumeration_add_mapping_unsigned rejects overlapping enum entries");
+               7, 8) == 0, "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts overlapping enum entries");
        ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, mapping_name_test,
                55, 54), "bt_ctf_field_type_enumeration_add_mapping_unsigned rejects mapping where end < start");
        ok(bt_ctf_event_class_add_field(simple_event_class, enum_type_unsigned,
@@ -441,22 +332,22 @@ void append_simple_event(struct bt_ctf_stream_class *stream_class,
 
        ok(bt_ctf_field_type_enumeration_get_mapping_count(NULL) < 0,
                "bt_ctf_field_type_enumeration_get_mapping_count handles NULL correctly");
-       ok(bt_ctf_field_type_enumeration_get_mapping_count(enum_type_unsigned) == 4,
+       ok(bt_ctf_field_type_enumeration_get_mapping_count(enum_type_unsigned) == 6,
                "bt_ctf_field_type_enumeration_get_mapping_count returns the correct value");
 
        ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(NULL, 0, &ret_char,
                &ret_range_start_uint64_t, &ret_range_end_uint64_t) < 0,
                "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL enumeration correctly");
        ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 0, NULL,
-               &ret_range_start_uint64_t, &ret_range_end_uint64_t) < 0,
+               &ret_range_start_uint64_t, &ret_range_end_uint64_t) == 0,
                "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL string correctly");
        ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 0, &ret_char,
-               NULL, &ret_range_end_uint64_t) < 0,
+               NULL, &ret_range_end_uint64_t) == 0,
                "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL start correctly");
        ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 0, &ret_char,
-               &ret_range_start_uint64_t, NULL) < 0,
+               &ret_range_start_uint64_t, NULL) == 0,
                "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL end correctly");
-       ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 3, &ret_char,
+       ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 4, &ret_char,
                &ret_range_start_uint64_t, &ret_range_end_uint64_t) == 0,
                "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a value");
        ok(!strcmp(ret_char, mapping_name_test),
@@ -473,7 +364,7 @@ void append_simple_event(struct bt_ctf_stream_class *stream_class,
 
        assert(!bt_ctf_event_class_set_id(simple_event_class, 13));
 
-       /* Set an event context type which will contain a single integer*/
+       /* Set an event context type which will contain a single integer*/
        ok(!bt_ctf_field_type_structure_add_field(event_context_type, uint_12_type,
                "event_specific_context"),
                "Add event specific context field");
@@ -482,8 +373,6 @@ void append_simple_event(struct bt_ctf_stream_class *stream_class,
        ok(bt_ctf_event_class_get_context_type(simple_event_class) == NULL,
                "bt_ctf_event_class_get_context_type returns NULL when no event context type is set");
 
-       ok(bt_ctf_event_class_set_context_type(simple_event_class, NULL) < 0,
-               "bt_ctf_event_class_set_context_type handles a NULL context type correctly");
        ok(bt_ctf_event_class_set_context_type(NULL, event_context_type) < 0,
                "bt_ctf_event_class_set_context_type handles a NULL event class correctly");
        ok(!bt_ctf_event_class_set_context_type(simple_event_class, event_context_type),
@@ -559,13 +448,6 @@ void append_simple_event(struct bt_ctf_stream_class *stream_class,
        ok(simple_event,
                "Instantiate an event containing a single integer field");
 
-       ok(bt_ctf_event_get_clock(NULL) == NULL,
-               "bt_ctf_event_get_clock handles NULL correctly");
-       ret_clock = bt_ctf_event_get_clock(simple_event);
-       ok(ret_clock == clock,
-               "bt_ctf_event_get_clock returns a correct clock");
-       bt_put(clock);
-
        integer_field = bt_ctf_field_create(ep_integer_field_type);
        bt_ctf_field_unsigned_integer_set_value(integer_field, 42);
        ok(bt_ctf_event_set_payload(simple_event, "integer_field",
@@ -586,20 +468,25 @@ void append_simple_event(struct bt_ctf_stream_class *stream_class,
 
        enum_field = bt_ctf_field_create(ep_enum_field_type);
        assert(enum_field);
-       ret_char = bt_ctf_field_enumeration_get_mapping_name(NULL);
-       ok(!ret_char, "bt_ctf_field_enumeration_get_mapping_name handles NULL correctly");
-       ret_char = bt_ctf_field_enumeration_get_mapping_name(enum_field);
-       ok(!ret_char, "bt_ctf_field_enumeration_get_mapping_name returns NULL if the enumeration's container field is unset");
+
+       iter = bt_ctf_field_enumeration_get_mappings(NULL);
+       ok(!iter, "bt_ctf_field_enumeration_get_mappings handles NULL correctly");
+       iter = bt_ctf_field_enumeration_get_mappings(enum_field);
+       ok(!iter, "bt_ctf_field_enumeration_get_mappings returns NULL if the enumeration's container field is unset");
        enum_container_field = bt_ctf_field_enumeration_get_container(
                enum_field);
        ok(bt_ctf_field_signed_integer_set_value(
                enum_container_field, -42) == 0,
                "Set signed enumeration container value");
-       ret_char = bt_ctf_field_enumeration_get_mapping_name(enum_field);
+       iter = bt_ctf_field_enumeration_get_mappings(enum_field);
+       ok(iter, "bt_ctf_field_enumeration_get_mappings returns an iterator to matching mappings");
+       ret = bt_ctf_field_type_enumeration_mapping_iterator_get_signed(iter, &ret_char, NULL, NULL);
+       ok(!ret && ret_char, "bt_ctf_field_type_enumeration_mapping_iterator_get_signed return a mapping name");
        ok(!strcmp(ret_char, mapping_name_negative_test),
-               "bt_ctf_field_enumeration_get_mapping_name returns the correct mapping name with an signed container");
+               "bt_ctf_field_enumeration_get_single_mapping_name returns the correct mapping name with an signed container");
        ret = bt_ctf_event_set_payload(simple_event, "enum_field", enum_field);
        assert(!ret);
+       BT_PUT(iter);
 
        enum_field_unsigned = bt_ctf_field_create(ep_enum_field_unsigned_type);
        assert(enum_field_unsigned);
@@ -611,9 +498,11 @@ void append_simple_event(struct bt_ctf_stream_class *stream_class,
        ret = bt_ctf_event_set_payload(simple_event, "enum_field_unsigned",
                enum_field_unsigned);
        assert(!ret);
-       ret_char = bt_ctf_field_enumeration_get_mapping_name(enum_field_unsigned);
+       iter = bt_ctf_field_enumeration_get_mappings(enum_field_unsigned);
+       assert(iter);
+       (void) bt_ctf_field_type_enumeration_mapping_iterator_get_unsigned(iter, &ret_char, NULL, NULL);
        ok(ret_char && !strcmp(ret_char, mapping_name_test),
-               "bt_ctf_field_enumeration_get_mapping_name returns the correct mapping name with an unsigned container");
+               "bt_ctf_field_type_enumeration_mapping_iterator_get_unsigned returns the correct mapping name with an unsigned container");
 
        ok(bt_ctf_clock_set_time(clock, current_time) == 0, "Set clock time");
 
@@ -701,6 +590,7 @@ void append_simple_event(struct bt_ctf_stream_class *stream_class,
        bt_put(ep_integer_field_type);
        bt_put(ep_enum_field_type);
        bt_put(ep_enum_field_unsigned_type);
+       bt_put(iter);
 }
 
 static
@@ -758,6 +648,7 @@ void append_complex_event(struct bt_ctf_stream_class *stream_class,
        struct bt_ctf_stream_class *ret_stream_class;
        struct bt_ctf_event_class *ret_event_class;
        struct bt_ctf_field *packet_context, *packet_context_field;
+       struct bt_ctf_field_type_enumeration_mapping_iterator *iter = NULL;
        struct bt_value *obj;
 
        ok(bt_ctf_field_type_set_alignment(int_16_type, 0),
@@ -793,12 +684,14 @@ void append_complex_event(struct bt_ctf_stream_class *stream_class,
        ok(bt_ctf_field_type_array_get_length(array_type) == ARRAY_TEST_LENGTH,
                "bt_ctf_field_type_array_get_length returns the correct length");
 
-       bt_ctf_field_type_structure_add_field(inner_structure_type,
-               uint_35_type, "seq_len");
-       bt_ctf_field_type_structure_add_field(inner_structure_type,
-               sequence_type, "a_sequence");
-       bt_ctf_field_type_structure_add_field(inner_structure_type,
-               array_type, "an_array");
+       ok(bt_ctf_field_type_structure_add_field(inner_structure_type,
+               inner_structure_type, "yes"), "Cannot add self to structure");
+       ok(!bt_ctf_field_type_structure_add_field(inner_structure_type,
+               uint_35_type, "seq_len"), "Add seq_len field to inner structure");
+       ok(!bt_ctf_field_type_structure_add_field(inner_structure_type,
+               sequence_type, "a_sequence"), "Add a_sequence field to inner structure");
+       ok(!bt_ctf_field_type_structure_add_field(inner_structure_type,
+               array_type, "an_array"), "Add an_array field to inner structure");
 
        bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
                "UINT3_TYPE", 0, 0);
@@ -807,31 +700,41 @@ void append_complex_event(struct bt_ctf_stream_class *stream_class,
        bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
                "UINT35_TYPE", 2, 7);
 
-       ok(bt_ctf_field_type_enumeration_get_mapping_index_by_name(NULL,
-               "INT16_TYPE") < 0,
-               "bt_ctf_field_type_enumeration_get_mapping_index_by_name handles a NULL field type correctly");
-       ok(bt_ctf_field_type_enumeration_get_mapping_index_by_name(
-               enum_variant_type, NULL) < 0,
-               "bt_ctf_field_type_enumeration_get_mapping_index_by_name handles a NULL name correctly");
-       ok(bt_ctf_field_type_enumeration_get_mapping_index_by_name(
-               enum_variant_type, "INT16_TYPE") == 1,
-               "bt_ctf_field_type_enumeration_get_mapping_index_by_name returns the correct index");
-
-       ok(bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value(NULL, 1) < 0,
-               "bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value handles a NULL field type correctly");
-       ok(bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value(enum_variant_type, -42) < 0,
-               "bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value handles invalid values correctly");
-       ok(bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value(enum_variant_type, 5) == 2,
-               "bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value returns the correct index");
+       iter = bt_ctf_field_type_enumeration_find_mappings_by_name(NULL, "INT16_TYPE");
+       ok(iter == NULL, "bt_ctf_field_type_enumeration_find_mappings_by_name handles a NULL field type correctly");
+
+       iter = bt_ctf_field_type_enumeration_find_mappings_by_name(enum_variant_type, "INT16_TYPE");
+       ok(iter != NULL, "bt_ctf_field_type_enumeration_find_mappings_by_name handles an existing mapping correctly");
+       ok(bt_ctf_field_type_enumeration_mapping_iterator_get_unsigned(iter, NULL, NULL, NULL) == 0,
+               "bt_ctf_field_type_enumeration_mapping_iterator_get_unsigned handles mapped values correctly");
+       BT_PUT(iter);
+
+       iter = bt_ctf_field_type_enumeration_find_mappings_by_name(enum_variant_type, NULL);
+       ok(iter == NULL, "bt_ctf_field_type_enumeration_find_mappings_by_name handles a NULL name correctly");
+
+       iter = bt_ctf_field_type_enumeration_find_mappings_by_unsigned_value(NULL, 1);
+       ok(iter == NULL, "bt_ctf_field_type_enumeration_find_mappings_by_unsigned_value handles a NULL field type correctly");
+
+       iter = bt_ctf_field_type_enumeration_find_mappings_by_unsigned_value(enum_variant_type, -42);
+       ok(iter == NULL, "bt_ctf_field_type_enumeration_find_mappings_by_unsigned_value handles invalid values correctly");
+       ok(bt_ctf_field_type_enumeration_mapping_iterator_get_unsigned(iter, NULL, NULL, NULL) != 0,
+               "bt_ctf_field_type_enumeration_mapping_iterator_get_unsigned handles invalid values correctly");
+       BT_PUT(iter);
+
+       iter = bt_ctf_field_type_enumeration_find_mappings_by_unsigned_value(enum_variant_type, 5);
+       ok(iter != NULL, "bt_ctf_field_type_enumeration_find_mappings_by_unsigned_value handles valid values correctly");
+       ok(bt_ctf_field_type_enumeration_mapping_iterator_get_unsigned(iter, NULL, NULL, NULL) == 0,
+               "bt_ctf_field_type_enumeration_mapping_iterator_get_unsigned handles valid values correctly");
+       BT_PUT(iter);
 
        ok(bt_ctf_field_type_variant_add_field(variant_type, uint_3_type,
                "An unknown entry"), "Reject a variant field based on an unknown tag value");
        ok(bt_ctf_field_type_variant_add_field(variant_type, uint_3_type,
                "UINT3_TYPE") == 0, "Add a field to a variant");
-       bt_ctf_field_type_variant_add_field(variant_type, int_16_type,
-               "INT16_TYPE");
-       bt_ctf_field_type_variant_add_field(variant_type, uint_35_type,
-               "UINT35_TYPE");
+       ok(!bt_ctf_field_type_variant_add_field(variant_type, int_16_type,
+               "INT16_TYPE"), "Add INT16_TYPE field to variant");
+       ok(!bt_ctf_field_type_variant_add_field(variant_type, uint_35_type,
+               "UINT35_TYPE"), "Add UINT35_TYPE field to variant");
 
        ok(bt_ctf_field_type_variant_get_tag_type(NULL) == NULL,
                "bt_ctf_field_type_variant_get_tag_type handles NULL correctly");
@@ -879,14 +782,17 @@ void append_complex_event(struct bt_ctf_stream_class *stream_class,
                "bt_ctf_field_type_variant_get_field returns a correct field type");
        bt_put(ret_field_type);
 
-       bt_ctf_field_type_structure_add_field(complex_structure_type,
-               enum_variant_type, "variant_selector");
-       bt_ctf_field_type_structure_add_field(complex_structure_type,
-               string_type, "a_string");
-       bt_ctf_field_type_structure_add_field(complex_structure_type,
-               variant_type, "variant_value");
-       bt_ctf_field_type_structure_add_field(complex_structure_type,
-               inner_structure_type, "inner_structure");
+       ok(!bt_ctf_field_type_structure_add_field(complex_structure_type,
+               enum_variant_type, "variant_selector"),
+               "Add variant_selector field to complex structure");
+       ok(!bt_ctf_field_type_structure_add_field(complex_structure_type,
+               string_type, "a_string"), "Add a_string field to complex structure");
+       ok(!bt_ctf_field_type_structure_add_field(complex_structure_type,
+               variant_type, "variant_value"),
+               "Add variant_value field to complex structure");
+       ok(!bt_ctf_field_type_structure_add_field(complex_structure_type,
+               inner_structure_type, "inner_structure"),
+               "Add inner_structure field to complex structure");
 
        ok(bt_ctf_event_class_create("clock") == NULL,
                "Reject creation of an event class with an illegal name");
@@ -1365,6 +1271,7 @@ void field_copy_tests()
        struct bt_ctf_field *a_3_copy = NULL;
        struct bt_ctf_field *a_4_copy = NULL;
        struct bt_ctf_field *strct_copy = NULL;
+       struct bt_ctf_field_type_enumeration_mapping_iterator *e_iter = NULL;
        uint64_t uint64_t_val;
        const char *str_val;
        double double_val;
@@ -1692,7 +1599,9 @@ void field_copy_tests()
                "bt_ctf_field_copy creates a valid enum's integer field copy");
 
        /* validate e copy */
-       str_val = bt_ctf_field_enumeration_get_mapping_name(e_copy);
+       e_iter = bt_ctf_field_enumeration_get_mappings(e_copy);
+       (void) bt_ctf_field_type_enumeration_mapping_iterator_get_signed(e_iter,
+               &str_val, NULL, NULL);
        ok(str_val && !strcmp(str_val, "LABEL2"),
                "bt_ctf_field_copy creates a valid enum field copy");
 
@@ -1815,6 +1724,7 @@ void field_copy_tests()
        bt_put(a_3_copy);
        bt_put(a_4_copy);
        bt_put(strct_copy);
+       bt_put(e_iter);
 }
 
 static
@@ -1920,7 +1830,9 @@ void type_field_tests()
                "bt_ctf_field_type_integer_get_encoding returns a correct value");
 
        int_16_type = bt_ctf_field_type_integer_create(16);
-       bt_ctf_field_type_integer_set_signed(int_16_type, 1);
+       assert(int_16_type);
+       ok(!bt_ctf_field_type_integer_set_signed(int_16_type, 1),
+               "Set signedness of 16 bit integer to true");
        ok(bt_ctf_field_type_integer_get_signed(int_16_type) == 1,
                "bt_ctf_field_type_integer_get_signed returns a correct value for signed types");
        uint_8_type = bt_ctf_field_type_integer_create(8);
@@ -2289,11 +2201,10 @@ end:
 }
 
 static
-void test_custom_event_header_stream(struct bt_ctf_writer *writer)
+void test_custom_event_header_stream(struct bt_ctf_writer *writer,
+                       struct bt_ctf_clock *clock)
 {
        int i, ret;
-       struct bt_ctf_trace *trace = NULL;
-       struct bt_ctf_clock *clock = NULL;
        struct bt_ctf_stream_class *stream_class = NULL;
        struct bt_ctf_stream *stream = NULL;
        struct bt_ctf_field_type *integer_type = NULL,
@@ -2303,18 +2214,6 @@ void test_custom_event_header_stream(struct bt_ctf_writer *writer)
        struct bt_ctf_event_class *event_class = NULL;
        struct bt_ctf_event *event = NULL;
 
-       trace = bt_ctf_writer_get_trace(writer);
-       if (!trace) {
-               fail("Failed to get trace from writer");
-               goto end;
-       }
-
-       clock = bt_ctf_trace_get_clock(trace, 0);
-       if (!clock) {
-               fail("Failed to get clock from trace");
-               goto end;
-       }
-
        stream_class = bt_ctf_stream_class_create("custom_event_header_stream");
        if (!stream_class) {
                fail("Failed to create stream class");
@@ -2479,8 +2378,6 @@ void test_custom_event_header_stream(struct bt_ctf_writer *writer)
                fail("Failed to flush custom_event_header stream");
        }
 end:
-       bt_put(clock);
-       bt_put(trace);
        bt_put(stream);
        bt_put(stream_class);
        bt_put(event_class);
@@ -2495,11 +2392,10 @@ end:
 }
 
 static
-void test_instanciate_event_before_stream(struct bt_ctf_writer *writer)
+void test_instanciate_event_before_stream(struct bt_ctf_writer *writer,
+               struct bt_ctf_clock *clock)
 {
        int ret = 0;
-       struct bt_ctf_trace *trace = NULL;
-       struct bt_ctf_clock *clock = NULL;
        struct bt_ctf_stream_class *stream_class = NULL;
        struct bt_ctf_stream *stream = NULL,
                *ret_stream = NULL;
@@ -2508,20 +2404,6 @@ void test_instanciate_event_before_stream(struct bt_ctf_writer *writer)
        struct bt_ctf_field_type *integer_type = NULL;
        struct bt_ctf_field *integer = NULL;
 
-       trace = bt_ctf_writer_get_trace(writer);
-       if (!trace) {
-               diag("Failed to get trace from writer");
-               ret = -1;
-               goto end;
-       }
-
-       clock = bt_ctf_trace_get_clock(trace, 0);
-       if (!clock) {
-               diag("Failed to get clock from trace");
-               ret = -1;
-               goto end;
-       }
-
        stream_class = bt_ctf_stream_class_create("event_before_stream_test");
        if (!stream_class) {
                diag("Failed to create stream class");
@@ -2600,7 +2482,6 @@ void test_instanciate_event_before_stream(struct bt_ctf_writer *writer)
 end:
        ok(ret == 0,
                "Create an event before instanciating its associated stream");
-       bt_put(trace);
        bt_put(stream);
        bt_put(ret_stream);
        bt_put(stream_class);
@@ -2608,7 +2489,6 @@ end:
        bt_put(event);
        bt_put(integer_type);
        bt_put(integer);
-       bt_put(clock);
 }
 
 static
@@ -2630,43 +2510,6 @@ void append_existing_event_class(struct bt_ctf_stream_class *stream_class)
        bt_put(event_class);
 }
 
-static
-void test_trace_stream_class_clock(void)
-{
-       struct bt_ctf_trace *trace = NULL;
-       struct bt_ctf_stream_class *sc1 = NULL;
-       struct bt_ctf_stream_class *sc2 = NULL;
-       struct bt_ctf_clock *sc1_clock = NULL;
-       struct bt_ctf_clock *sc2_clock = NULL;
-       const char *clock_name = "hello";
-
-       trace = bt_ctf_trace_create();
-       assert(trace);
-       sc1 = bt_ctf_stream_class_create(NULL);
-       assert(sc1);
-       sc2 = bt_ctf_stream_class_create(NULL);
-       assert(sc2);
-       sc1_clock = bt_ctf_clock_create(clock_name);
-       assert(sc1_clock);
-       sc2_clock = bt_ctf_clock_create(clock_name);
-       assert(sc2_clock);
-
-       ok(!bt_ctf_stream_class_set_clock(sc1, sc1_clock),
-               "bt_ctf_stream_class_set_clock() succeeds for sc1");
-       ok(!bt_ctf_stream_class_set_clock(sc2, sc2_clock),
-               "bt_ctf_stream_class_set_clock() succeeds for sc2");
-       ok(!bt_ctf_trace_add_stream_class(trace, sc1),
-               "bt_ctf_trace_add_stream_class() succeeds with sc1");
-       ok(bt_ctf_trace_add_stream_class(trace, sc2),
-               "bt_ctf_trace_add_stream_class() fails with sc2 (different clock, same name)");
-
-       BT_PUT(trace);
-       BT_PUT(sc1);
-       BT_PUT(sc2);
-       BT_PUT(sc1_clock);
-       BT_PUT(sc2_clock);
-}
-
 static
 struct bt_ctf_event_class *create_minimal_event_class(void)
 {
@@ -2708,7 +2551,7 @@ void test_create_writer_vs_non_writer_mode(void)
        struct bt_ctf_field_type *empty_struct_ft = NULL;
        struct bt_ctf_field *int_field = NULL;
        struct bt_ctf_clock *writer_clock = NULL;
-       struct bt_ctf_clock *non_writer_clock = NULL;
+       struct bt_ctf_clock_class *non_writer_clock_class = NULL;
        struct bt_ctf_packet *packet = NULL;
        struct bt_ctf_packet *packet2 = NULL;
 
@@ -2723,6 +2566,8 @@ void test_create_writer_vs_non_writer_mode(void)
        /* Create writer, writer stream class, stream, and clock */
        writer = bt_ctf_writer_create(trace_path);
        assert(writer);
+       ret = bt_ctf_writer_set_byte_order(writer, BT_CTF_BYTE_ORDER_LITTLE_ENDIAN);
+       assert(!ret);
        writer_trace = bt_ctf_writer_get_trace(writer);
        ok(writer_trace, "bt_ctf_writer_get_trace() returns a trace");
        writer_sc = bt_ctf_stream_class_create("writer_sc");
@@ -2738,12 +2583,15 @@ void test_create_writer_vs_non_writer_mode(void)
                "bt_ctf_stream_get_name() returns the stream's name");
        writer_clock = bt_ctf_clock_create("writer_clock");
        assert(writer_clock);
-       ret = bt_ctf_trace_add_clock(writer_trace, writer_clock);
+       ret = bt_ctf_writer_add_clock(writer, writer_clock);
        assert(!ret);
 
        /* Create non-writer trace, stream class, stream, and clock */
        non_writer_trace = bt_ctf_trace_create();
        assert(non_writer_trace);
+       ret = bt_ctf_trace_set_byte_order(non_writer_trace,
+               BT_CTF_BYTE_ORDER_LITTLE_ENDIAN);
+       assert(!ret);
        non_writer_sc = bt_ctf_stream_class_create("nonwriter_sc");
        assert(non_writer_sc);
        ret = bt_ctf_stream_class_set_event_header_type(non_writer_sc,
@@ -2753,9 +2601,11 @@ void test_create_writer_vs_non_writer_mode(void)
        assert(!ret);
        non_writer_stream = bt_ctf_stream_create(non_writer_sc, NULL);
        assert(non_writer_stream);
-       non_writer_clock = bt_ctf_clock_create("non_writer_clock");
-       assert(non_writer_clock);
-       ret = bt_ctf_trace_add_clock(non_writer_trace, non_writer_clock);
+       non_writer_clock_class =
+               bt_ctf_clock_class_create("non_writer_clock_class");
+       assert(non_writer_clock_class);
+       ret = bt_ctf_trace_add_clock_class(non_writer_trace,
+               non_writer_clock_class);
        assert(!ret);
 
        /* Create event class and event */
@@ -2783,24 +2633,6 @@ void test_create_writer_vs_non_writer_mode(void)
        ok(!bt_ctf_stream_append_event(writer_stream, event),
                "bt_ctf_stream_append_event() succeeds with a writer stream");
 
-       /*
-        * Verify that it's possible to get and set the value of a
-        * writer mode clock.
-        */
-       ok (!bt_ctf_clock_set_value(writer_clock, 1000),
-               "bt_ctf_clock_set_value() succeeds with a writer mode clock");
-       ok (bt_ctf_clock_get_value(writer_clock) == 1000,
-               "bt_ctf_clock_get_value() succeeds with a writer mode clock");
-
-       /*
-        * Verify that it's impossible to get and set the value of a
-        * non-writer mode clock.
-        */
-       ok (bt_ctf_clock_set_value(non_writer_clock, 1000),
-               "bt_ctf_clock_set_value() fails with a non-writer mode clock");
-       ok (bt_ctf_clock_get_value(non_writer_clock) == -1ULL,
-               "bt_ctf_clock_get_value() fails with a non-writer mode clock");
-
        /*
         * It should be possible to create a packet from a non-writer
         * stream, but not from a writer stream.
@@ -2886,7 +2718,7 @@ void test_create_writer_vs_non_writer_mode(void)
        bt_put(int_field);
        bt_put(empty_struct_ft);
        bt_put(writer_clock);
-       bt_put(non_writer_clock);
+       bt_put(non_writer_clock_class);
        bt_put(packet);
        bt_put(packet2);
        recursive_rmdir(trace_path);
@@ -2906,17 +2738,40 @@ void test_clock_utils(void)
        assert(!ret);
        ret = bt_ctf_clock_set_frequency(clock, 1000000000);
        assert(!ret);
-       ok(bt_ctf_clock_ns_from_value(clock, 4321) == 1234000005321ULL,
-               "bt_ctf_clock_ns_from_value() returns the correct value with a 1 GHz frequency");
        ret = bt_ctf_clock_set_frequency(clock, 1534);
        assert(!ret);
-       ok(bt_ctf_clock_ns_from_value(clock, 4321) ==
-               (uint64_t) 1237468709256.845,
-               "bt_ctf_clock_ns_from_value() returns the correct value with a non-1 GHz frequency");
 
        BT_PUT(clock);
 }
 
+void test_set_clock_non_writer_stream_class(void)
+{
+       struct bt_ctf_clock *clock;
+       struct bt_ctf_trace *trace;
+       struct bt_ctf_stream_class *sc;
+       int ret;
+
+       clock = bt_ctf_clock_create("the_clock");
+       assert(clock);
+
+       trace = bt_ctf_trace_create();
+       assert(trace);
+
+       sc = bt_ctf_stream_class_create(NULL);
+       assert(sc);
+
+       ret = bt_ctf_stream_class_set_clock(sc, clock);
+       assert(ret == 0);
+
+       ret = bt_ctf_trace_add_stream_class(trace, sc);
+       ok(ret < 0,
+               "bt_ctf_trace_add_stream_class() fails with a stream class with a registered clock");
+
+       bt_put(clock);
+       bt_put(trace);
+       bt_put(sc);
+}
+
 int main(int argc, char **argv)
 {
        char trace_path[] = "/tmp/ctfwriter_XXXXXX";
@@ -2929,8 +2784,7 @@ int main(int argc, char **argv)
        const int64_t offset_s = 1351530929945824323;
        const int64_t offset = 1234567;
        int64_t get_offset_s,
-               get_offset,
-               get_time;
+               get_offset;
        const uint64_t precision = 10;
        const int is_absolute = 0xFF;
        char *metadata_string;
@@ -2938,6 +2792,7 @@ int main(int argc, char **argv)
        struct utsname name;
        char hostname[BABELTRACE_HOST_NAME_MAX];
        struct bt_ctf_clock *clock, *ret_clock;
+       struct bt_ctf_clock_class *ret_clock_class;
        struct bt_ctf_stream_class *stream_class, *ret_stream_class;
        struct bt_ctf_stream *stream1;
        const char *ret_string;
@@ -2957,8 +2812,8 @@ int main(int argc, char **argv)
        int64_t ret_int64_t;
        struct bt_value *obj;
 
-       if (argc < 3) {
-               printf("Usage: tests-ctf-writer path_to_ctf_parser_test path_to_babeltrace\n");
+       if (argc < 2) {
+               printf("Usage: tests-ctf-writer path_to_babeltrace\n");
                return -1;
        }
 
@@ -3145,7 +3000,6 @@ int main(int argc, char **argv)
        /* Define a clock and add it to the trace */
        ok(bt_ctf_clock_create("signed") == NULL,
                "Illegal clock name rejected");
-       ok(bt_ctf_clock_create(NULL) == NULL, "NULL clock name rejected");
        clock = bt_ctf_clock_create(clock_name);
        ok(clock, "Clock created sucessfully");
        returned_clock_name = bt_ctf_clock_get_name(clock);
@@ -3207,22 +3061,8 @@ int main(int argc, char **argv)
        ok(bt_ctf_clock_get_is_absolute(clock) == !!is_absolute,
                "bt_ctf_clock_get_precision returns the correct is_absolute attribute once it is set");
 
-       ok(bt_ctf_clock_get_time(clock, &get_time) == 0,
-               "bt_ctf_clock_get_time succeeds");
-       ok(get_time == DEFAULT_CLOCK_TIME,
-               "bt_ctf_clock_get_time returns the correct default time");
-       ok(bt_ctf_clock_get_value(clock) == DEFAULT_CLOCK_VALUE,
-               "bt_ctf_clock_get_value returns the correct default value");
-       ok(bt_ctf_clock_set_value(clock, current_time) == 0,
-               "Set clock value");
-       ok(bt_ctf_clock_get_value(clock) == current_time,
-               "bt_ctf_clock_get_value returns the correct value once it is set");
        ok(bt_ctf_clock_set_time(clock, current_time) == 0,
                "Set clock time");
-       ok(bt_ctf_clock_get_time(clock, &get_time) == 0,
-               "bt_ctf_clock_get_time succeeds");
-       ok(get_time >= current_time - 1 && get_time <= current_time + 1,
-               "bt_ctf_clock_get_time returns the correct time once it is set");
 
        ok(!bt_ctf_clock_get_name(NULL),
                "bt_ctf_clock_get_name correctly handles NULL");
@@ -3242,10 +3082,6 @@ int main(int argc, char **argv)
                "bt_ctf_clock_get_offset correctly handles NULL output");
        ok(bt_ctf_clock_get_is_absolute(NULL) < 0,
                "bt_ctf_clock_get_is_absolute correctly handles NULL");
-       ok(bt_ctf_clock_get_time(NULL, &get_time) < 0,
-               "bt_ctf_clock_get_time correctly handles NULL clock");
-       ok(bt_ctf_clock_get_time(clock, NULL) < 0,
-               "bt_ctf_clock_get_time correctly handles NULL output");
 
        ok(bt_ctf_clock_set_description(NULL, NULL) < 0,
                "bt_ctf_clock_set_description correctly handles NULL clock");
@@ -3380,8 +3216,6 @@ int main(int argc, char **argv)
 
        ok(bt_ctf_trace_set_packet_header_type(NULL, packet_header_type) < 0,
                "bt_ctf_trace_set_packet_header_type handles a NULL trace correctly");
-       ok(bt_ctf_trace_set_packet_header_type(trace, NULL) < 0,
-               "bt_ctf_trace_set_packet_header_type handles a NULL packet_header_type correctly");
        ok(!bt_ctf_trace_set_packet_header_type(trace, packet_header_type),
                "Set a trace packet_header_type successfully");
 
@@ -3397,8 +3231,6 @@ int main(int argc, char **argv)
 
        ok(bt_ctf_stream_class_set_packet_context_type(NULL, packet_context_type),
                "bt_ctf_stream_class_set_packet_context_type handles a NULL stream class correctly");
-       ok(bt_ctf_stream_class_set_packet_context_type(stream_class, NULL),
-               "bt_ctf_stream_class_set_packet_context_type handles a NULL packet context type correctly");
 
        integer_type = bt_ctf_field_type_integer_create(32);
        ok(bt_ctf_stream_class_set_packet_context_type(stream_class,
@@ -3424,9 +3256,6 @@ int main(int argc, char **argv)
        ok(bt_ctf_stream_class_set_event_context_type(NULL,
                stream_event_context_type) < 0,
                "bt_ctf_stream_class_set_event_context_type handles a NULL stream_class correctly");
-       ok(bt_ctf_stream_class_set_event_context_type(stream_class,
-               NULL) < 0,
-               "bt_ctf_stream_class_set_event_context_type handles a NULL event_context correctly");
        ok(bt_ctf_stream_class_set_event_context_type(stream_class,
                integer_type) < 0,
                "bt_ctf_stream_class_set_event_context_type validates that the event context os a structure");
@@ -3441,6 +3270,8 @@ int main(int argc, char **argv)
        bt_put(ret_field_type);
 
        /* Instantiate a stream and append events */
+       ret = bt_ctf_writer_add_clock(writer, clock);
+       assert(ret == 0);
        stream1 = bt_ctf_writer_create_stream(writer, stream_class);
        ok(stream1, "Instanciate a stream class from writer");
 
@@ -3449,31 +3280,33 @@ int main(int argc, char **argv)
         * class to the writer's trace, thus registering the stream
         * class's clock to the trace.
         */
-       ok(bt_ctf_trace_get_clock_count(NULL) < 0,
-               "bt_ctf_trace_get_clock_count correctly handles NULL");
-       ok(bt_ctf_trace_get_clock_count(trace) == 1,
-               "bt_ctf_trace_get_clock_count returns the correct number of clocks");
-       ok(!bt_ctf_trace_get_clock(NULL, 0),
-               "bt_ctf_trace_get_clock correctly handles NULL");
-       ok(!bt_ctf_trace_get_clock(trace, -1),
-               "bt_ctf_trace_get_clock correctly handles negative indexes");
-       ok(!bt_ctf_trace_get_clock(trace, 1),
-               "bt_ctf_trace_get_clock correctly handles out of bound accesses");
-       ret_clock = bt_ctf_trace_get_clock(trace, 0);
-       ok(ret_clock == clock,
-               "bt_ctf_trace_get_clock returns the right clock instance");
-       bt_put(ret_clock);
-       ok(!bt_ctf_trace_get_clock_by_name(trace, NULL),
-               "bt_ctf_trace_get_clock_by_name correctly handles NULL (trace)");
-       ok(!bt_ctf_trace_get_clock_by_name(NULL, clock_name),
+       ok(bt_ctf_trace_get_clock_class_count(NULL) < 0,
+               "bt_ctf_trace_get_clock_class_count correctly handles NULL");
+       ok(bt_ctf_trace_get_clock_class_count(trace) == 1,
+               "bt_ctf_trace_get_clock_class_count returns the correct number of clocks");
+       ok(!bt_ctf_trace_get_clock_class(NULL, 0),
+               "bt_ctf_trace_get_clock_class correctly handles NULL");
+       ok(!bt_ctf_trace_get_clock_class(trace, -1),
+               "bt_ctf_trace_get_clock_class correctly handles negative indexes");
+       ok(!bt_ctf_trace_get_clock_class(trace, 1),
+               "bt_ctf_trace_get_clock_class correctly handles out of bound accesses");
+       ret_clock_class = bt_ctf_trace_get_clock_class(trace, 0);
+       ok(strcmp(bt_ctf_clock_class_get_name(ret_clock_class),
+               bt_ctf_clock_get_name(clock)) == 0,
+               "bt_ctf_trace_get_clock_class returns the right clock instance");
+       bt_put(ret_clock_class);
+       ok(!bt_ctf_trace_get_clock_class_by_name(trace, NULL),
+               "bt_ctf_trace_get_clock_class_by_name correctly handles NULL (trace)");
+       ok(!bt_ctf_trace_get_clock_class_by_name(NULL, clock_name),
                "bt_ctf_trace_get_clock_by_name correctly handles NULL (clock name)");
-       ok(!bt_ctf_trace_get_clock_by_name(NULL, NULL),
+       ok(!bt_ctf_trace_get_clock_class_by_name(NULL, NULL),
                "bt_ctf_trace_get_clock_by_name correctly handles NULL (both)");
-       ret_clock = bt_ctf_trace_get_clock_by_name(trace, clock_name);
-       ok(ret_clock == clock,
-               "bt_ctf_trace_get_clock_by_name returns the right clock instance");
-       bt_put(ret_clock);
-       ok(!bt_ctf_trace_get_clock_by_name(trace, "random"),
+       ret_clock_class = bt_ctf_trace_get_clock_class_by_name(trace, clock_name);
+       ok(strcmp(bt_ctf_clock_class_get_name(ret_clock_class),
+               bt_ctf_clock_get_name(clock)) == 0,
+               "bt_ctf_trace_get_clock_class returns the right clock instance");
+       bt_put(ret_clock_class);
+       ok(!bt_ctf_trace_get_clock_class_by_name(trace, "random"),
                "bt_ctf_trace_get_clock_by_name fails when the requested clock doesn't exist");
 
        ok(bt_ctf_stream_get_class(NULL) == NULL,
@@ -3565,11 +3398,11 @@ int main(int argc, char **argv)
 
        test_clock_utils();
 
-       test_trace_stream_class_clock();
-
        test_create_writer_vs_non_writer_mode();
 
-       test_instanciate_event_before_stream(writer);
+       test_set_clock_non_writer_stream_class();
+
+       test_instanciate_event_before_stream(writer, clock);
 
        append_simple_event(stream_class, stream1, clock);
 
@@ -3581,14 +3414,12 @@ int main(int argc, char **argv)
 
        test_empty_stream(writer);
 
-       test_custom_event_header_stream(writer);
+       test_custom_event_header_stream(writer, clock);
 
        metadata_string = bt_ctf_writer_get_metadata_string(writer);
        ok(metadata_string, "Get metadata string");
 
        bt_ctf_writer_flush_metadata(writer);
-       validate_metadata(argv[1], metadata_path);
-       validate_trace(argv[2], trace_path);
 
        bt_put(clock);
        bt_put(ret_stream_class);
@@ -3607,6 +3438,8 @@ int main(int argc, char **argv)
        free(metadata_string);
        bt_put(stream_class);
 
-       recursive_rmdir(trace_path);
+       validate_trace(argv[1], trace_path);
+
+       //recursive_rmdir(trace_path);
        return 0;
 }
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