def test_router_routes_to_known_route(self):
matching_router = Mock()
r = Router([matching_router])
r.match(r, 'test')
matching_router.handle.assert_called_with(r)
def test_router_returns_none_on_no_match(self):
r = Router([])
self.assertIsNone(r.match(r, 'test'))