def test_cache_behavior():
orig_max = vfs._cache_max_items
try:
vfs._cache_max_items = 2
vfs.clear_cache()
wvpasseq({}, vfs._cache)
wvpasseq([], vfs._cache_keys)
wvfail(vfs._cache_keys)
wvexcept(Exception, vfs.cache_notice, 'x', 1)
key_0 = 'itm:' + b'\0' * 20
key_1 = 'itm:' + b'\1' * 20
key_2 = 'itm:' + b'\2' * 20
vfs.cache_notice(key_0, 'something')
wvpasseq({key_0 : 'something'}, vfs._cache)
wvpasseq([key_0], vfs._cache_keys)
vfs.cache_notice(key_1, 'something else')
wvpasseq({key_0 : 'something', key_1 : 'something else'}, vfs._cache)
wvpasseq(frozenset([key_0, key_1]), frozenset(vfs._cache_keys))
vfs.cache_notice(key_2, 'and also')
wvpasseq(2, len(vfs._cache))
wvpass(frozenset(vfs._cache.iteritems())
< frozenset({key_0 : 'something',
key_1 : 'something else',
key_2 : 'and also'}.iteritems()))
wvpasseq(2, len(vfs._cache_keys))
wvpass(frozenset(vfs._cache_keys) < frozenset([key_0, key_1, key_2]))
vfs.clear_cache()
wvpasseq({}, vfs._cache)
wvpasseq([], vfs._cache_keys)
finally:
vfs._cache_max_items = orig_max
vfs.clear_cache()
def test_cache_behavior():
orig_max = vfs._cache_max_items
try:
vfs._cache_max_items = 2
vfs.clear_cache()
wvpasseq({}, vfs._cache)
wvpasseq([], vfs._cache_keys)
wvfail(vfs._cache_keys)
wvexcept(Exception, vfs.cache_notice, 'x', 1)
key_0 = 'itm:' + b'\0' * 20
key_1 = 'itm:' + b'\1' * 20
key_2 = 'itm:' + b'\2' * 20
vfs.cache_notice(key_0, 'something')
wvpasseq({key_0: 'something'}, vfs._cache)
wvpasseq([key_0], vfs._cache_keys)
vfs.cache_notice(key_1, 'something else')
wvpasseq({key_0: 'something', key_1: 'something else'}, vfs._cache)
wvpasseq(frozenset([key_0, key_1]), frozenset(vfs._cache_keys))
vfs.cache_notice(key_2, 'and also')
wvpasseq(2, len(vfs._cache))
wvpass(
frozenset(vfs._cache.iteritems()) < frozenset({
key_0: 'something',
key_1: 'something else',
key_2: 'and also'
}.iteritems()))
wvpasseq(2, len(vfs._cache_keys))
wvpass(frozenset(vfs._cache_keys) < frozenset([key_0, key_1, key_2]))
vfs.clear_cache()
wvpasseq({}, vfs._cache)
wvpasseq([], vfs._cache_keys)
finally:
vfs._cache_max_items = orig_max
vfs.clear_cache()