def test_meets(): """Test meets function used in LRB paper.""" spacetime_loc = Point(0.0, 0.0, 0.0, 0.0) worldline_1_start = Point(-10.0, -10.0, -10.0, -10.0) worldline_1_end = Point(10.0, 10.0, 10.0, 10.0) worldline_2_start = Point(10.0, 10.0, 10.0, 10.0) worldline_2_end = Point(-10.0, -10.0, -10.0, -10.0) assert spacetime_loc.meets( worldline_1_start, worldline_1_end, worldline_2_start, worldline_2_end)