def test_write():
test_obj = LRUCache(1)
test_obj.write("some_key", 42)
test_obj.write(42, "some_key")
assert test_obj.get_value("some_key") == 42
assert test_obj.get_value(42) == "some_key"
assert test_obj.is_dirty("some_key")
def test_refresh():
test_obj = LRUCache(1)
test_obj.refresh("some_key", 43, time.time())
test_obj.refresh("some_key",42, time.time())
assert test_obj.get_value("some_key") == 42
test_obj.refresh("some_key",43, time.time()-1000)
assert test_obj.get_value("some_key") == 42, "Refresh should not have worked since the modified time of the 'disk' entry is older than the cache entry."
assert not test_obj.is_dirty("some_key")
def test_is_dirty():
test_obj = LRUCache(1)
test_obj.refresh("some_key", 43, time.time())
assert not test_obj.is_dirty("some_key")
test_obj.write("some_key", 42)
assert test_obj.is_dirty("some_key")
