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unittests: add tests for gnrc_pktbuf_reverse_snips()

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This commit is contained in:
Martine Lenders 2018-10-22 21:40:43 +02:00
parent a5c9f959b5
commit d6ea335bfc
1 changed files with 39 additions and 0 deletions
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39
tests/unittests/tests-pktbuf/tests-pktbuf.c
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@ -818,6 +818,43 @@ static void test_pktbuf_get_iovec__null(void)
TEST_ASSERT_EQUAL_INT(0, len);
}
static void test_pktbuf_reverse_snips__too_full(void)
{
gnrc_pktsnip_t *pkt, *pkt_next, *pkt_huge;
const size_t pkt_huge_size = GNRC_PKTBUF_SIZE - (3 * 8) -
(3 * sizeof(gnrc_pktsnip_t)) - 4;
pkt_next = gnrc_pktbuf_add(NULL, TEST_STRING8, 8, GNRC_NETTYPE_TEST);
TEST_ASSERT_NOT_NULL(pkt_next);
/* hold to enforce duplication */
gnrc_pktbuf_hold(pkt_next, 1);
pkt = gnrc_pktbuf_add(pkt_next, TEST_STRING8, 8, GNRC_NETTYPE_TEST);
TEST_ASSERT_NOT_NULL(pkt);
/* filling up rest of packet buffer */
pkt_huge = gnrc_pktbuf_add(NULL, NULL, pkt_huge_size, GNRC_NETTYPE_UNDEF);
TEST_ASSERT_NOT_NULL(pkt_huge);
TEST_ASSERT_NULL(gnrc_pktbuf_reverse_snips(pkt));
gnrc_pktbuf_release(pkt_huge);
/* release because of hold above */
gnrc_pktbuf_release(pkt_next);
TEST_ASSERT(gnrc_pktbuf_is_empty());
}
static void test_pktbuf_reverse_snips__success(void)
{
gnrc_pktsnip_t *pkt, *pkt_next, *pkt_reversed;
pkt_next = gnrc_pktbuf_add(NULL, TEST_STRING8, 8, GNRC_NETTYPE_TEST);
TEST_ASSERT_NOT_NULL(pkt_next);
pkt = gnrc_pktbuf_add(pkt_next, TEST_STRING8, 8, GNRC_NETTYPE_TEST);
TEST_ASSERT_NOT_NULL(pkt);
pkt_reversed = gnrc_pktbuf_reverse_snips(pkt);
TEST_ASSERT(pkt_reversed == pkt_next);
TEST_ASSERT(pkt_reversed->next == pkt);
gnrc_pktbuf_release(pkt_reversed);
TEST_ASSERT(gnrc_pktbuf_is_empty());
}
Test *tests_pktbuf_tests(void)
{
EMB_UNIT_TESTFIXTURES(fixtures) {
@ -870,6 +907,8 @@ Test *tests_pktbuf_tests(void)
new_TestFixture(test_pktbuf_get_iovec__1_elem),
new_TestFixture(test_pktbuf_get_iovec__3_elem),
new_TestFixture(test_pktbuf_get_iovec__null),
new_TestFixture(test_pktbuf_reverse_snips__too_full),
new_TestFixture(test_pktbuf_reverse_snips__success),
};
EMB_UNIT_TESTCALLER(gnrc_pktbuf_tests, set_up, NULL, fixtures);