Tests: Add unit tests for stream event context accessors
[babeltrace.git] / tests / lib / test_ctf_writer.c
index 826c530d84041aaab4414fceb1195be77de16c4b..a1a3c29ae2bd6894ecbc355358a0137e61e36433 100644 (file)
 #include <stdlib.h>
 #include <stdio.h>
 #include <sys/utsname.h>
-#include <limits.h>
+#include <babeltrace/compat/limits.h>
 #include <string.h>
 #include <assert.h>
-#include <unistd.h>
 #include <sys/wait.h>
 #include <fcntl.h>
 #include <dirent.h>
 
 static uint64_t current_time = 42;
 
+/* Return 1 if uuids match, zero if different. */
+int uuid_match(const unsigned char *uuid_a, const unsigned char *uuid_b)
+{
+       int ret = 0;
+       int i;
+
+       if (!uuid_a || !uuid_b) {
+               goto end;
+       }
+
+       for (i = 0; i < 16; i++) {
+               if (uuid_a[i] != uuid_b[i]) {
+                       goto end;
+               }
+       }
+
+       ret = 1;
+end:
+       return ret;
+}
+
 void validate_metadata(char *parser_path, char *metadata_path)
 {
        int ret = 0;
@@ -282,10 +302,14 @@ void append_simple_event(struct bt_ctf_stream_class *stream_class,
        const char *mapping_name_negative_test = "negative_value";
        const char *ret_char;
        double ret_double;
-       size_t ret_size_t;
        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;
+       struct bt_ctf_field *event_context;
+       struct bt_ctf_field *event_context_field;
 
        ok(uint_12_type, "Create an unsigned integer type");
 
@@ -341,15 +365,11 @@ void append_simple_event(struct bt_ctf_stream_class *stream_class,
                -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, &ret_size_t) < 0,
+       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, -42, NULL) < 0,
-               "bt_ctf_field_type_enumeration_get_mapping_index_by_value handles a NULL index correctly");
-       ok(bt_ctf_field_type_enumeration_get_mapping_index_by_value(enum_type, 1000000, &ret_size_t) < 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, &ret_size_t) == 0,
+       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(ret_size_t == 1,
+       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");
 
        ok(bt_ctf_event_class_add_field(simple_event_class, enum_type,
@@ -431,6 +451,30 @@ void append_simple_event(struct bt_ctf_stream_class *stream_class,
        bt_ctf_stream_class_add_event_class(stream_class,
                simple_event_class);
 
+       ok(bt_ctf_stream_class_get_event_class_count(NULL) < 0,
+               "bt_ctf_stream_class_get_event_class_count handles NULL correctly");
+       ok(bt_ctf_stream_class_get_event_class_count(stream_class) == 1,
+               "bt_ctf_stream_class_get_event_class_count returns a correct number of event classes");
+       ok(bt_ctf_stream_class_get_event_class(NULL, 0) == NULL,
+               "bt_ctf_stream_class_get_event_class handles NULL correctly");
+       ok(bt_ctf_stream_class_get_event_class(stream_class, 8724) == NULL,
+               "bt_ctf_stream_class_get_event_class handles invalid indexes correctly");
+       ret_event_class = bt_ctf_stream_class_get_event_class(stream_class, 0);
+       ok(ret_event_class == simple_event_class,
+               "bt_ctf_stream_class_get_event_class returns the correct event class");
+       bt_ctf_event_class_put(ret_event_class);
+
+       ok(bt_ctf_stream_class_get_event_class_by_name(NULL, "some event name") == NULL,
+               "bt_ctf_stream_class_get_event_class_by_name handles a NULL stream class correctly");
+       ok(bt_ctf_stream_class_get_event_class_by_name(stream_class, NULL) == NULL,
+               "bt_ctf_stream_class_get_event_class_by_name handles a NULL event class name correctly");
+       ok(bt_ctf_stream_class_get_event_class_by_name(stream_class, "some event name") == NULL,
+               "bt_ctf_stream_class_get_event_class_by_name handles non-existing event class names correctly");
+        ret_event_class = bt_ctf_stream_class_get_event_class_by_name(stream_class, "Simple Event");
+       ok(ret_event_class == simple_event_class,
+               "bt_ctf_stream_class_get_event_class_by_name returns a correct event class");
+       bt_ctf_event_class_put(ret_event_class);
+
        simple_event = bt_ctf_event_create(simple_event_class);
        ok(simple_event,
                "Instantiate an event containing a single integer field");
@@ -489,9 +533,38 @@ void append_simple_event(struct bt_ctf_stream_class *stream_class,
 
        ok(bt_ctf_clock_set_time(clock, current_time) == 0, "Set clock time");
 
+       /* Populate stream event context */
+       event_context = bt_ctf_stream_get_event_context(stream);
+       event_context_field = bt_ctf_field_structure_get_field(
+               event_context, "common_event_context");
+       bt_ctf_field_unsigned_integer_set_value(event_context_field, 42);
+
        ok(bt_ctf_stream_append_event(stream, simple_event) == 0,
                "Append simple event to trace stream");
 
+       ok(bt_ctf_stream_get_packet_context(NULL) == NULL,
+               "bt_ctf_stream_get_packet_context handles NULL correctly");
+       packet_context = bt_ctf_stream_get_packet_context(stream);
+       ok(packet_context,
+               "bt_ctf_stream_get_packet_context returns a packet context");
+
+       packet_context_field = bt_ctf_field_structure_get_field(packet_context,
+               "packet_size");
+       ok(packet_context_field,
+               "Packet context contains the default packet_size field.");
+       bt_ctf_field_put(packet_context_field);
+       packet_context_field = bt_ctf_field_structure_get_field(packet_context,
+               "custom_packet_context_field");
+       ok(bt_ctf_field_unsigned_integer_set_value(packet_context_field, 8) == 0,
+               "Custom packet context field value successfully set.");
+
+       ok(bt_ctf_stream_set_packet_context(NULL, packet_context_field) < 0,
+               "bt_ctf_stream_set_packet_context handles a NULL stream correctly");
+       ok(bt_ctf_stream_set_packet_context(stream, NULL) < 0,
+               "bt_ctf_stream_set_packet_context handles a NULL packet context correctly");
+       ok(bt_ctf_stream_set_packet_context(stream, packet_context) == 0,
+               "Successfully set a stream's packet context");
+
        ok(bt_ctf_stream_flush(stream) == 0,
                "Flush trace stream with one event");
 
@@ -509,6 +582,10 @@ void append_simple_event(struct bt_ctf_stream_class *stream_class,
        bt_ctf_field_put(enum_field_unsigned);
        bt_ctf_field_put(enum_container_field);
        bt_ctf_field_put(enum_container_field_unsigned);
+       bt_ctf_field_put(packet_context);
+       bt_ctf_field_put(packet_context_field);
+       bt_ctf_field_put(event_context);
+       bt_ctf_field_put(event_context_field);
 }
 
 void append_complex_event(struct bt_ctf_stream_class *stream_class,
@@ -546,9 +623,9 @@ void append_complex_event(struct bt_ctf_stream_class *stream_class,
        uint64_t ret_unsigned_int;
        int64_t ret_signed_int;
        const char *ret_string;
-       size_t ret_size_t;
        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;
 
        bt_ctf_field_type_set_alignment(int_16_type, 32);
        bt_ctf_field_type_integer_set_signed(int_16_type, 1);
@@ -586,30 +663,21 @@ 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",
-               &ret_size_t) < 0,
+       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,
-               &ret_size_t) < 0,
+       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",
-               NULL) < 0,
-               "bt_ctf_field_type_enumeration_get_mapping_index_by_name handles a NULL index correctly");
-       ok(bt_ctf_field_type_enumeration_get_mapping_index_by_name(enum_variant_type, "INT16_TYPE",
-               &ret_size_t) == 0,
-               "bt_ctf_field_type_enumeration_get_mapping_index_by_name returns a value");
-       ok(ret_size_t == 1,
+       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, &ret_size_t) < 0,
+       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, 1, NULL) < 0,
-               "bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value handles a NULL index correctly");
-       ok(bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value(enum_variant_type, -42, &ret_size_t) < 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, &ret_size_t) == 0,
+       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(ret_size_t == 2,
+       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");
 
        ok(bt_ctf_field_type_variant_add_field(variant_type, uint_3_type,
@@ -778,9 +846,9 @@ void append_complex_event(struct bt_ctf_stream_class *stream_class,
 
        ok(uint_35_field, "Use bt_ctf_event_get_payload to get a field instance ");
        bt_ctf_field_unsigned_integer_set_value(uint_35_field, 0x0DDF00D);
-       ok(bt_ctf_field_unsigned_integer_get_value(NULL, &ret_unsigned_int) == -1,
+       ok(bt_ctf_field_unsigned_integer_get_value(NULL, &ret_unsigned_int) < 0,
                "bt_ctf_field_unsigned_integer_get_value properly properly handles a NULL field.");
-       ok(bt_ctf_field_unsigned_integer_get_value(uint_35_field, NULL) == -1,
+       ok(bt_ctf_field_unsigned_integer_get_value(uint_35_field, NULL) < 0,
                "bt_ctf_field_unsigned_integer_get_value properly handles a NULL return value");
        ok(bt_ctf_field_unsigned_integer_get_value(uint_35_field,
                &ret_unsigned_int) == 0,
@@ -788,15 +856,15 @@ void append_complex_event(struct bt_ctf_stream_class *stream_class,
        ok(ret_unsigned_int == 0x0DDF00D,
                "bt_ctf_field_unsigned_integer_get_value returns the correct value");
        ok(bt_ctf_field_signed_integer_get_value(uint_35_field,
-               &ret_signed_int) == -1,
+               &ret_signed_int) < 0,
                "bt_ctf_field_signed_integer_get_value fails on an unsigned field");
        bt_ctf_field_put(uint_35_field);
 
        int_16_field = bt_ctf_event_get_payload(event, "int_16");
        bt_ctf_field_signed_integer_set_value(int_16_field, -12345);
-       ok(bt_ctf_field_signed_integer_get_value(NULL, &ret_signed_int) == -1,
+       ok(bt_ctf_field_signed_integer_get_value(NULL, &ret_signed_int) < 0,
                "bt_ctf_field_signed_integer_get_value properly handles a NULL field");
-       ok(bt_ctf_field_signed_integer_get_value(int_16_field, NULL) == -1,
+       ok(bt_ctf_field_signed_integer_get_value(int_16_field, NULL) < 0,
                "bt_ctf_field_signed_integer_get_value properly handles a NULL return value");
        ok(bt_ctf_field_signed_integer_get_value(int_16_field,
                &ret_signed_int) == 0,
@@ -804,7 +872,7 @@ void append_complex_event(struct bt_ctf_stream_class *stream_class,
        ok(ret_signed_int == -12345,
                "bt_ctf_field_signed_integer_get_value returns the correct value");
        ok(bt_ctf_field_unsigned_integer_get_value(int_16_field,
-               &ret_unsigned_int) == -1,
+               &ret_unsigned_int) < 0,
                "bt_ctf_field_unsigned_integer_get_value fails on a signed field");
        bt_ctf_field_put(int_16_field);
 
@@ -853,7 +921,7 @@ void append_complex_event(struct bt_ctf_stream_class *stream_class,
                "bt_ctf_field_string_get_value correctly handles NULL");
        ret_string = bt_ctf_field_string_get_value(a_string_field);
        ok(ret_string, "bt_ctf_field_string_get_value returns a string");
-       ok(!strcmp(ret_string, test_string),
+       ok(ret_string ? !strcmp(ret_string, test_string) : 0,
                "bt_ctf_field_string_get_value returns a correct value");
        bt_ctf_field_unsigned_integer_set_value(uint_35_field,
                SEQUENCE_TEST_LENGTH);
@@ -896,6 +964,16 @@ void append_complex_event(struct bt_ctf_stream_class *stream_class,
        bt_ctf_clock_set_time(clock, ++current_time);
        ok(bt_ctf_stream_append_event(stream, event) == 0,
                "Append a complex event to a stream");
+
+       /*
+        * Populate the custom packet context field with a dummy value
+        * otherwise flush will fail.
+        */
+       packet_context = bt_ctf_stream_get_packet_context(stream);
+       packet_context_field = bt_ctf_field_structure_get_field(packet_context,
+               "custom_packet_context_field");
+       bt_ctf_field_unsigned_integer_set_value(packet_context_field, 1);
+
        ok(bt_ctf_stream_flush(stream) == 0,
                "Flush a stream containing a complex event");
 
@@ -909,6 +987,8 @@ void append_complex_event(struct bt_ctf_stream_class *stream_class,
        bt_ctf_field_put(enum_container_field);
        bt_ctf_field_put(variant_field);
        bt_ctf_field_put(ret_field);
+       bt_ctf_field_put(packet_context_field);
+       bt_ctf_field_put(packet_context);
        bt_ctf_field_type_put(uint_35_type);
        bt_ctf_field_type_put(int_16_type);
        bt_ctf_field_type_put(string_type);
@@ -1194,7 +1274,7 @@ void type_field_tests()
        ok(!enumeration_array_type,
                "Check enumeration types are validated when creating an array");
        ok(bt_ctf_field_type_structure_add_field(composite_structure_type,
-               enumeration_type, "enumeration") == 0,
+               enumeration_type, "enumeration"),
                "Check enumeration types are validated when adding them as structure members");
        enumeration = bt_ctf_field_create(enumeration_type);
        ok(!enumeration,
@@ -1233,9 +1313,13 @@ void packet_resize_test(struct bt_ctf_stream_class *stream_class,
                bt_ctf_field_type_integer_create(17);
        struct bt_ctf_field_type *string_type =
                bt_ctf_field_type_string_create();
-       struct bt_ctf_event *event;
-       struct bt_ctf_field *ret_field;
-       struct bt_ctf_field_type *ret_field_type;
+       struct bt_ctf_event *event = NULL;
+       struct bt_ctf_field *ret_field = NULL;
+       struct bt_ctf_field_type *ret_field_type = NULL;
+       uint64_t ret_uint64;
+       int events_appended = 0;
+       struct bt_ctf_field *packet_context = NULL,
+               *packet_context_field = NULL, *event_context = NULL;
 
        ret |= bt_ctf_event_class_add_field(event_class, integer_type,
                "field_1");
@@ -1261,6 +1345,22 @@ void packet_resize_test(struct bt_ctf_stream_class *stream_class,
                "bt_ctf_event_get_payload_by_index handles an invalid index correctly");
        bt_ctf_event_put(event);
 
+       ok(bt_ctf_stream_get_event_context(NULL) == NULL,
+               "bt_ctf_stream_get_event_context handles NULL correctly");
+       event_context = bt_ctf_stream_get_event_context(stream);
+       ok(event_context,
+               "bt_ctf_stream_get_event_context returns a stream event context");
+       ok(bt_ctf_stream_set_event_context(NULL, event_context) < 0,
+               "bt_ctf_stream_set_event_context handles a NULL stream correctly");
+       ok(bt_ctf_stream_set_event_context(stream, NULL) < 0,
+               "bt_ctf_stream_set_event_context handles a NULL stream event context correctly");
+       ok(!bt_ctf_stream_set_event_context(stream, event_context),
+               "bt_ctf_stream_set_event_context correctly set a stream event context");
+       ret_field = bt_ctf_field_create(integer_type);
+       ok(bt_ctf_stream_set_event_context(stream, ret_field) < 0,
+               "bt_ctf_stream_set_event_context rejects an event context of incorrect type");
+       bt_ctf_field_put(ret_field);
+
        for (i = 0; i < PACKET_RESIZE_TEST_LENGTH; i++) {
                event = bt_ctf_event_create(event_class);
                struct bt_ctf_field *integer =
@@ -1277,6 +1377,14 @@ void packet_resize_test(struct bt_ctf_stream_class *stream_class,
                ret |= bt_ctf_event_set_payload(event, "a_string",
                        string);
                bt_ctf_field_put(string);
+
+               /* Populate stream event context */
+               integer = bt_ctf_field_structure_get_field(event_context,
+                       "common_event_context");
+               ret |= bt_ctf_field_unsigned_integer_set_value(integer,
+                       i % 42);
+               bt_ctf_field_put(integer);
+
                ret |= bt_ctf_stream_append_event(stream, event);
                bt_ctf_event_put(event);
 
@@ -1284,12 +1392,42 @@ void packet_resize_test(struct bt_ctf_stream_class *stream_class,
                        break;
                }
        }
+
+       events_appended = !!(i == PACKET_RESIZE_TEST_LENGTH);
+       ok(bt_ctf_stream_get_discarded_events_count(NULL, &ret_uint64) < 0,
+               "bt_ctf_stream_get_discarded_events_count handles a NULL stream correctly");
+       ok(bt_ctf_stream_get_discarded_events_count(stream, NULL) < 0,
+               "bt_ctf_stream_get_discarded_events_count handles a NULL return pointer correctly");
+       ret = bt_ctf_stream_get_discarded_events_count(stream, &ret_uint64);
+       ok(ret == 0 && ret_uint64 == 0,
+               "bt_ctf_stream_get_discarded_events_count returns a correct number of discarded events when none were discarded");
+       bt_ctf_stream_append_discarded_events(stream, 1000);
+       ret = bt_ctf_stream_get_discarded_events_count(stream, &ret_uint64);
+       ok(ret == 0 && ret_uint64 == 1000,
+               "bt_ctf_stream_get_discarded_events_count returns a correct number of discarded events when some were discarded");
+
 end:
-       ok(ret == 0, "Append 100 000 events to a stream");
+       ok(events_appended, "Append 100 000 events to a stream");
+
+       /*
+        * Populate the custom packet context field with a dummy value
+        * otherwise flush will fail.
+        */
+       packet_context = bt_ctf_stream_get_packet_context(stream);
+       packet_context_field = bt_ctf_field_structure_get_field(packet_context,
+               "custom_packet_context_field");
+       bt_ctf_field_unsigned_integer_set_value(packet_context_field, 2);
+
        ok(bt_ctf_stream_flush(stream) == 0,
                "Flush a stream that forces a packet resize");
+       ret = bt_ctf_stream_get_discarded_events_count(stream, &ret_uint64);
+       ok(ret == 0 && ret_uint64 == 1000,
+               "bt_ctf_stream_get_discarded_events_count returns a correct number of discarded events after a flush");
        bt_ctf_field_type_put(integer_type);
        bt_ctf_field_type_put(string_type);
+       bt_ctf_field_put(packet_context);
+       bt_ctf_field_put(packet_context_field);
+       bt_ctf_field_put(event_context);
        bt_ctf_event_class_put(event_class);
 }
 
@@ -1309,14 +1447,24 @@ int main(int argc, char **argv)
        char *metadata_string;
        struct bt_ctf_writer *writer;
        struct utsname name;
-       char hostname[HOST_NAME_MAX];
+       char hostname[BABELTRACE_HOST_NAME_MAX];
        struct bt_ctf_clock *clock, *ret_clock;
        struct bt_ctf_stream_class *stream_class;
        struct bt_ctf_stream *stream1;
+       const char *ret_string;
+       const unsigned char *ret_uuid;
+       unsigned char tmp_uuid[16] = { 0 };
+       struct bt_ctf_field_type *packet_context_type,
+               *packet_context_field_type,
+               *integer_type,
+               *stream_event_context_type,
+               *ret_field_type;
+       struct bt_ctf_trace *trace;
+       int ret;
 
        if (argc < 3) {
                printf("Usage: tests-ctf-writer path_to_ctf_parser_test path_to_babeltrace\n");
-               exit(-1);
+               return -1;
        }
 
        plan_no_plan();
@@ -1332,7 +1480,10 @@ int main(int argc, char **argv)
        ok(writer, "bt_ctf_create succeeds in creating trace with path");
 
        /* Add environment context to the trace */
-       gethostname(hostname, HOST_NAME_MAX);
+       ret = gethostname(hostname, sizeof(hostname));
+       if (ret < 0) {
+               return ret;
+       }
        ok(bt_ctf_writer_add_environment_field(writer, "host", hostname) == 0,
                "Add host (%s) environment field to writer instance",
                hostname);
@@ -1376,7 +1527,7 @@ int main(int argc, char **argv)
        ok(clock, "Clock created sucessfully");
        returned_clock_name = bt_ctf_clock_get_name(clock);
        ok(returned_clock_name, "bt_ctf_clock_get_name returns a clock name");
-       ok(strcmp(returned_clock_name, clock_name) == 0,
+       ok(returned_clock_name ? !strcmp(returned_clock_name, clock_name) : 0,
                "Returned clock name is valid");
 
        returned_clock_description = bt_ctf_clock_get_description(clock);
@@ -1387,7 +1538,8 @@ int main(int argc, char **argv)
        returned_clock_description = bt_ctf_clock_get_description(clock);
        ok(returned_clock_description,
                "bt_ctf_clock_get_description returns a description.");
-       ok(strcmp(returned_clock_description, clock_description) == 0,
+       ok(returned_clock_description ?
+               !strcmp(returned_clock_description, clock_description) : 0,
                "Returned clock description is valid");
 
        ok(bt_ctf_clock_get_frequency(clock) == DEFAULT_CLOCK_FREQ,
@@ -1436,6 +1588,26 @@ int main(int argc, char **argv)
        ok(bt_ctf_writer_add_clock(writer, clock),
                "Verify a clock can't be added twice to a writer instance");
 
+       ok(!bt_ctf_writer_get_trace(NULL),
+               "bt_ctf_writer_get_trace correctly handles NULL");
+       trace = bt_ctf_writer_get_trace(writer);
+       ok(trace,
+               "bt_ctf_writer_get_trace returns a bt_ctf_trace object");
+       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_ctf_clock_put(ret_clock);
+
        ok(!bt_ctf_clock_get_name(NULL),
                "bt_ctf_clock_get_name correctly handles NULL");
        ok(!bt_ctf_clock_get_description(NULL),
@@ -1448,28 +1620,57 @@ int main(int argc, char **argv)
                "bt_ctf_clock_get_offset_s correctly handles NULL");
        ok(bt_ctf_clock_get_offset(NULL) == -1ULL,
                "bt_ctf_clock_get_offset correctly handles NULL");
-       ok(bt_ctf_clock_get_is_absolute(NULL) == -1,
+       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) == -1ULL,
                "bt_ctf_clock_get_time correctly handles NULL");
 
-       ok(bt_ctf_clock_set_description(NULL, NULL) == -1,
+       ok(bt_ctf_clock_set_description(NULL, NULL) < 0,
                "bt_ctf_clock_set_description correctly handles NULL clock");
-       ok(bt_ctf_clock_set_frequency(NULL, frequency) == -1,
+       ok(bt_ctf_clock_set_frequency(NULL, frequency) < 0,
                "bt_ctf_clock_set_frequency correctly handles NULL clock");
-       ok(bt_ctf_clock_set_precision(NULL, precision) == -1,
+       ok(bt_ctf_clock_set_precision(NULL, precision) < 0,
                "bt_ctf_clock_get_precision correctly handles NULL clock");
-       ok(bt_ctf_clock_set_offset_s(NULL, offset_s) == -1,
+       ok(bt_ctf_clock_set_offset_s(NULL, offset_s) < 0,
                "bt_ctf_clock_set_offset_s correctly handles NULL clock");
-       ok(bt_ctf_clock_set_offset(NULL, offset) == -1,
+       ok(bt_ctf_clock_set_offset(NULL, offset) < 0,
                "bt_ctf_clock_set_offset correctly handles NULL clock");
-       ok(bt_ctf_clock_set_is_absolute(NULL, is_absolute) == -1,
+       ok(bt_ctf_clock_set_is_absolute(NULL, is_absolute) < 0,
                "bt_ctf_clock_set_is_absolute correctly handles NULL clock");
-       ok(bt_ctf_clock_set_time(NULL, current_time) == -1,
+       ok(bt_ctf_clock_set_time(NULL, current_time) < 0,
                "bt_ctf_clock_set_time correctly handles NULL clock");
+       ok(bt_ctf_clock_get_uuid(NULL) == NULL,
+               "bt_ctf_clock_get_uuid correctly handles NULL clock");
+       ret_uuid = bt_ctf_clock_get_uuid(clock);
+       ok(ret_uuid,
+               "bt_ctf_clock_get_uuid returns a UUID");
+       if (ret_uuid) {
+               memcpy(tmp_uuid, ret_uuid, sizeof(tmp_uuid));
+               /* Slightly modify UUID */
+               tmp_uuid[sizeof(tmp_uuid) - 1]++;
+       }
+
+       ok(bt_ctf_clock_set_uuid(NULL, tmp_uuid) < 0,
+               "bt_ctf_clock_set_uuid correctly handles a NULL clock");
+       ok(bt_ctf_clock_set_uuid(clock, NULL) < 0,
+               "bt_ctf_clock_set_uuid correctly handles a NULL UUID");
+       ok(bt_ctf_clock_set_uuid(clock, tmp_uuid) == 0,
+               "bt_ctf_clock_set_uuid sets a new uuid succesfully");
+       ret_uuid = bt_ctf_clock_get_uuid(clock);
+       ok(ret_uuid,
+               "bt_ctf_clock_get_uuid returns a UUID after setting a new one");
+       ok(uuid_match(ret_uuid, tmp_uuid),
+               "bt_ctf_clock_get_uuid returns the correct UUID after setting a new one");
 
        /* Define a stream class */
        stream_class = bt_ctf_stream_class_create("test_stream");
+
+       ok(bt_ctf_stream_class_get_name(NULL) == NULL,
+               "bt_ctf_stream_class_get_name handles NULL correctly");
+       ret_string = bt_ctf_stream_class_get_name(stream_class);
+       ok(!strcmp(ret_string, "test_stream"),
+               "bt_ctf_stream_class_get_name returns a correct stream class name");
+
        ok(bt_ctf_stream_class_get_clock(stream_class) == NULL,
                "bt_ctf_stream_class_get_clock returns NULL when a clock was not set");
        ok(bt_ctf_stream_class_get_clock(NULL) == NULL,
@@ -1497,11 +1698,83 @@ int main(int argc, char **argv)
        ok(bt_ctf_stream_class_get_id(stream_class) == 123,
                "bt_ctf_stream_class_get_id returns the correct value");
 
+       /* Create a "uint5_t" equivalent custom packet context field */
+       packet_context_field_type = bt_ctf_field_type_integer_create(5);
+
+       ok(bt_ctf_stream_class_get_packet_context_type(NULL) == NULL,
+               "bt_ctf_stream_class_get_packet_context_type handles NULL correctly");
+
+       /* Add a custom field to the stream class' packet context */
+       packet_context_type = bt_ctf_stream_class_get_packet_context_type(stream_class);
+       ok(packet_context_type,
+               "bt_ctf_stream_class_get_packet_context_type returns a packet context type.");
+       ok(bt_ctf_field_type_get_type_id(packet_context_type) == CTF_TYPE_STRUCT,
+               "Packet context is a structure");
+
+       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,
+               integer_type) < 0,
+               "bt_ctf_stream_class_set_packet_context_type rejects a packet context that is not a structure");
+       ret = bt_ctf_field_type_structure_add_field(packet_context_type,
+               packet_context_field_type, "custom_packet_context_field");
+       ok(ret == 0, "Packet context field added successfully");
+
+       /* Define a stream event context containing a my_integer field. */
+       ok(bt_ctf_stream_class_get_event_context_type(NULL) == NULL,
+               "bt_ctf_stream_class_get_event_context_type handles NULL correctly");
+       ok(bt_ctf_stream_class_get_event_context_type(
+               stream_class) == NULL,
+               "bt_ctf_stream_class_get_event_context_type returns NULL when no stream event context type was set.");
+       stream_event_context_type = bt_ctf_field_type_structure_create();
+       bt_ctf_field_type_structure_add_field(stream_event_context_type,
+               integer_type, "common_event_context");
+
+       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");
+
+       ok(bt_ctf_stream_class_set_event_context_type(
+               stream_class, stream_event_context_type) == 0,
+               "Set a new stream event context type");
+       ret_field_type = bt_ctf_stream_class_get_event_context_type(
+               stream_class);
+       ok(ret_field_type == stream_event_context_type,
+               "bt_ctf_stream_class_get_event_context_type returns the correct field type.");
+
        /* Instantiate a stream and append events */
        stream1 = bt_ctf_writer_create_stream(writer, stream_class);
        ok(stream1, "Instanciate a stream class from writer");
 
-       /* Should fail after instanciating a stream (locked)*/
+       /*
+        * Try to modify the packet context type after a stream has been
+        * created.
+        */
+       ret = bt_ctf_field_type_structure_add_field(packet_context_type,
+               packet_context_field_type, "should_fail");
+       ok(ret < 0,
+               "Packet context type can't be modified once a stream class has been instanciated");
+
+       /*
+        * Try to modify the stream event context type after a stream has been
+        * created.
+        */
+       ret = bt_ctf_field_type_structure_add_field(stream_event_context_type,
+               integer_type, "should_fail");
+       ok(ret < 0,
+               "Stream event context type can't be modified once a stream class has been instanciated");
+
+       /* Should fail after instanciating a stream (frozen) */
        ok(bt_ctf_stream_class_set_clock(stream_class, clock),
                "Changes to a stream class that was already instantiated fail");
 
@@ -1522,6 +1795,12 @@ int main(int argc, char **argv)
        bt_ctf_stream_class_put(stream_class);
        bt_ctf_writer_put(writer);
        bt_ctf_stream_put(stream1);
+       bt_ctf_field_type_put(packet_context_type);
+       bt_ctf_field_type_put(packet_context_field_type);
+       bt_ctf_field_type_put(integer_type);
+       bt_ctf_field_type_put(stream_event_context_type);
+       bt_ctf_field_type_put(ret_field_type);
+       bt_ctf_trace_put(trace);
        free(metadata_string);
 
        /* Remove all trace files and delete temporary trace directory */
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