Function test_ring_negative_tests

dpdk/app/test/test_ring.c:501–580

* Various negative test cases. */

 * Various negative test cases.
 */
static int
test_ring_negative_tests(void)
{
	struct rte_ring *rp = NULL;
	struct rte_ring *rt = NULL;
	unsigned int i;

	/* Test with esize not a multiple of 4 */
	rp = test_ring_create("test_bad_element_size", 23,
				RING_SIZE + 1, SOCKET_ID_ANY, 0);
	if (rp != NULL) {
		printf("Test failed to detect invalid element size\n");
		goto test_fail;
	}


	for (i = 0; i < RTE_DIM(esize); i++) {
		/* Test if ring size is not power of 2 */
		rp = test_ring_create("test_bad_ring_size", esize[i],
					RING_SIZE + 1, SOCKET_ID_ANY, 0);
		if (rp != NULL) {
			printf("Test failed to detect odd count\n");
			goto test_fail;
		}

		/* Test if ring size is exceeding the limit */
		rp = test_ring_create("test_bad_ring_size", esize[i],
					RTE_RING_SZ_MASK + 1, SOCKET_ID_ANY, 0);
		if (rp != NULL) {
			printf("Test failed to detect limits\n");
			goto test_fail;
		}

		/* Tests if lookup returns NULL on non-existing ring */
		rp = rte_ring_lookup("ring_not_found");
		if (rp != NULL && rte_errno != ENOENT) {
			printf("Test failed to detect NULL ring lookup\n");
			goto test_fail;
		}

		/* Test to if a non-power of 2 count causes the create
		 * function to fail correctly
		 */
		rp = test_ring_create("test_ring_count", esize[i], 4097,
					SOCKET_ID_ANY, 0);
		if (rp != NULL)
			goto test_fail;

		rp = test_ring_create("test_ring_negative", esize[i], RING_SIZE,
					SOCKET_ID_ANY,
					RING_F_SP_ENQ | RING_F_SC_DEQ);
		if (rp == NULL) {
			printf("test_ring_negative fail to create ring\n");
			goto test_fail;
		}

		TEST_RING_VERIFY(rte_ring_lookup("test_ring_negative") == rp,
					rp, goto test_fail);