diff options
Diffstat (limited to 'src/kernel')
| -rw-r--r-- | src/kernel/tests/util.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/kernel/tests/util.c b/src/kernel/tests/util.c index cf16b75..b7123b4 100644 --- a/src/kernel/tests/util.c +++ b/src/kernel/tests/util.c @@ -32,12 +32,23 @@ TEST(strcmp) { } TEST(ring) { - char backbuf[16]; + char backbuf[16], cmpbuf[16]; size_t num_read = 0, num_written = 0; uint8_t c; ring_t r = {backbuf, 16, 0, 0}; + // test aliasing + for (size_t i = 0; i < 16; i++) { + TEST_COND(ring_size(&r) == 0); + ring_put(&r, "11 bytes...", 11); + TEST_COND(ring_size(&r) == 11); + + memset(cmpbuf, 0, sizeof cmpbuf); + TEST_COND(ring_get(&r, cmpbuf, 16) == 11); + TEST_COND(memcmp(cmpbuf, "11 bytes...", 11) == 0); + } + TEST_COND(ring_size(&r) == 0); for (size_t i = 0; i < 7; i++) ring_put1b(&r, num_written++); |