def test_blocked_serializes_properly(self):
f = BlockedFrame(2)
s = f.serialize()
assert s == b'\x00\x00\x00\x0B\x00\x00\x00\x00\x02'
def test_blocked_has_no_flags(self):
f = BlockedFrame(0)
flags = f.parse_flags(0xFF)
assert not flags
assert isinstance(flags, set)
