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[bcache] add unit test

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abort-forces-read
This commit is contained in:
Joe Thornber 2019-10-29 10:33:31 +00:00
parent 6b0d969b2a
commit 5fdebf9bbf
1 changed files with 24 additions and 0 deletions
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24
test/unit/bcache_t.c
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@ -837,6 +837,29 @@ static void test_abort_single_block(void *context)
T_ASSERT(bcache_flush(cache));
}
static void test_abort_forces_reread(void *context)
{
struct fixture *f = context;
struct mock_engine *me = f->me;
struct bcache *cache = f->cache;
struct block *b;
int fd = 17;
_expect_read(me, fd, 0);
_expect(me, E_WAIT);
T_ASSERT(bcache_get(cache, fd, 0, GF_DIRTY, &b));
bcache_put(b);
bcache_abort_fd(cache, fd);
T_ASSERT(bcache_flush(cache));
// Check the block is re-read
_expect_read(me, fd, 0);
_expect(me, E_WAIT);
T_ASSERT(bcache_get(cache, fd, 0, 0, &b));
bcache_put(b);
}
static void test_abort_only_specific_fd(void *context)
{
struct fixture *f = context;
@ -960,6 +983,7 @@ static struct test_suite *_small_tests(void)
T("abort-with-no-blocks", "you can call abort, even if there are no blocks in the cache", test_abort_no_blocks);
T("abort-single-block", "single block get silently discarded", test_abort_single_block);
T("abort-forces-read", "if a block has been discarded then another read is necc.", test_abort_forces_reread);
T("abort-specific-fd", "abort doesn't effect other fds", test_abort_only_specific_fd);
T("concurrent-reads-after-invalidate", "prefetch should still issue concurrent reads after invalidate",