Function test_arc_negative_full_circle

lib/matplotlib/tests/test_path.py:529–534

(theta1, theta2)

@pytest.mark.parametrize('theta1, theta2', [(0, -360), (0, -720), (360, 0),
                                            (10, -350)])
def test_arc_negative_full_circle(theta1, theta2):
    # An exact negative multiple of 360 must draw a complete circle.
    # The result is the same complete circle as the equivalent positive turn
    # starting from *theta1* (so the assertion holds for non-cardinal starts).
    np.testing.assert_allclose(Path.arc(theta1, theta2).vertices,
                               Path.arc(theta1, theta1 + 360).vertices)


def test_arc_unwrap_partial_turn():