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pod: handle various ways of making empty array/choice

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Make it possible to make empty array/choice
Handle empty array/choice
Add some tests to make empty arrays/choice objects
This commit is contained in:
Wim Taymans 2021-01-25 10:53:55 +01:00
parent c913abffef
commit ebf324590b
4 changed files with 83 additions and 4 deletions
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67
spa/tests/test-pod.c
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@ -674,6 +674,72 @@ static void test_build(void)
}
}
static void test_empty(void)
{
uint8_t buffer[4096];
struct spa_pod_builder b;
struct spa_pod *array, *a2, *choice, *ch2;
struct spa_pod_frame f;
uint32_t n_vals, ch;
/* create empty arrays */
spa_pod_builder_init(&b, buffer, sizeof(buffer));
spa_assert(spa_pod_builder_push_array(&b, &f) == 0);
spa_assert(spa_pod_builder_child(&b, sizeof(uint32_t), SPA_TYPE_Id) == 0);
spa_assert((array = spa_pod_builder_pop(&b, &f)) != NULL);
spa_debug_mem(0, array, 16);
spa_assert(spa_pod_is_array(array));
spa_assert((a2 = spa_pod_get_array(array, &n_vals)) != NULL);
spa_assert(n_vals == 0);
spa_pod_builder_init(&b, buffer, sizeof(buffer));
spa_assert(spa_pod_builder_push_array(&b, &f) == 0);
spa_assert((array = spa_pod_builder_pop(&b, &f)) != NULL);
spa_assert(spa_pod_is_array(array));
spa_assert((a2 = spa_pod_get_array(array, &n_vals)) != NULL);
spa_assert(n_vals == 0);
spa_pod_builder_init(&b, buffer, sizeof(buffer));
spa_assert(spa_pod_builder_push_array(&b, &f) == 0);
spa_assert(spa_pod_builder_none(&b) == 0);
spa_assert((array = spa_pod_builder_pop(&b, &f)) != NULL);
spa_assert(spa_pod_is_array(array));
spa_assert((a2 = spa_pod_get_array(array, &n_vals)) != NULL);
spa_assert(n_vals == 0);
spa_pod_builder_init(&b, buffer, sizeof(buffer));
spa_assert(spa_pod_builder_array(&b, 4, SPA_TYPE_Id, 0, NULL) == 0);
array = (struct spa_pod*)buffer;
spa_assert(spa_pod_is_array(array));
spa_assert((a2 = spa_pod_get_array(array, &n_vals)) != NULL);
spa_assert(n_vals == 0);
/* create empty choice */
spa_pod_builder_init(&b, buffer, sizeof(buffer));
spa_assert(spa_pod_builder_push_choice(&b, &f, 0, 0) == 0);
spa_assert(spa_pod_builder_child(&b, sizeof(uint32_t), SPA_TYPE_Id) == 0);
spa_assert((choice = spa_pod_builder_pop(&b, &f)) != NULL);
spa_debug_mem(0, choice, 32);
spa_assert(spa_pod_is_choice(choice));
spa_assert((ch2 = spa_pod_get_values(choice, &n_vals, &ch)) != NULL);
spa_assert(n_vals == 0);
spa_pod_builder_init(&b, buffer, sizeof(buffer));
spa_assert(spa_pod_builder_push_choice(&b, &f, 0, 0) == 0);
spa_assert((choice = spa_pod_builder_pop(&b, &f)) != NULL);
spa_assert(spa_pod_is_choice(choice));
spa_assert((ch2 = spa_pod_get_values(choice, &n_vals, &ch)) != NULL);
spa_assert(n_vals == 0);
spa_pod_builder_init(&b, buffer, sizeof(buffer));
spa_assert(spa_pod_builder_push_choice(&b, &f, 0, 0) == 0);
spa_assert(spa_pod_builder_none(&b) == 0);
spa_assert((choice = spa_pod_builder_pop(&b, &f)) != NULL);
spa_assert(spa_pod_is_choice(choice));
spa_assert((ch2 = spa_pod_get_values(choice, &n_vals, &ch)) != NULL);
spa_assert(n_vals == 0);
}
static void test_varargs(void)
{
uint8_t buffer[4096];
@ -1528,6 +1594,7 @@ int main(int argc, char *argv[])
{
test_abi();
test_init();
test_empty();
test_build();
test_varargs();
test_varargs2();