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[bcache] Add some unit tests for invalidate block.

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Trying to identify dct's lockup.
This commit is contained in:
Joe Thornber 2018-04-27 09:12:57 +01:00
parent 5b6e62dc1f
commit 8a14b8a733
1 changed files with 43 additions and 0 deletions
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43
unit-test/bcache_t.c
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@ -723,6 +723,46 @@ static void test_write_bad_io_stops_flush(void *context)
T_ASSERT(bcache_flush(cache));
}
static void test_invalidate_not_present(void *context)
{
struct fixture *f = context;
struct bcache *cache = f->cache;
int fd = 17;
bcache_invalidate(cache, fd, 0);
}
static void test_invalidate_present(void *context)
{
struct fixture *f = context;
struct mock_engine *me = f->me;
struct bcache *cache = f->cache;
struct block *b;
int fd = 17;
int err;
_expect_read(me, fd, 0);
_expect(me, E_WAIT);
T_ASSERT(bcache_get(cache, fd, 0, 0, &b, &err));
bcache_put(b);
bcache_invalidate(cache, fd, 0);
}
static void test_invalidate_after_error(void *context)
{
struct fixture *f = context;
struct mock_engine *me = f->me;
struct bcache *cache = f->cache;
struct block *b;
int fd = 17;
int err;
_expect_read_bad_issue(me, fd, 0);
T_ASSERT(!bcache_get(cache, fd, 0, 0, &b, &err));
bcache_invalidate(cache, fd, 0);
}
// Tests to be written
// show invalidate works
// show invalidate_fd works
@ -759,6 +799,9 @@ static struct test_suite *_small_tests(void)
T("read-bad-io-intermittent", "failed io, followed by success", test_read_bad_wait_intermittent);
T("write-bad-issue-stops-flush", "flush fails temporarily if any block fails to write", test_write_bad_issue_stops_flush);
T("write-bad-io-stops-flush", "flush fails temporarily if any block fails to write", test_write_bad_io_stops_flush);
T("invalidate-not-present", "invalidate a block that isn't in the cache", test_invalidate_not_present);
T("invalidate-present", "invalidate a block that is in the cache", test_invalidate_present);
T("invalidate-error", "invalidate a block that errored", test_invalidate_after_error);
return ts;
}