Function test_inverted_limits

lib/matplotlib/tests/test_axes.py:1161–1184

()

def test_inverted_limits():
    # Test gh:1553
    # Calling invert_xaxis prior to plotting should not disable autoscaling
    # while still maintaining the inverted direction
    fig, ax = plt.subplots()
    ax.invert_xaxis()
    ax.plot([-5, -3, 2, 4], [1, 2, -3, 5])

    assert ax.get_xlim() == (4, -5)
    assert ax.get_ylim() == (-3, 5)
    plt.close()

    fig, ax = plt.subplots()
    ax.invert_yaxis()
    ax.plot([-5, -3, 2, 4], [1, 2, -3, 5])

    assert ax.get_xlim() == (-5, 4)
    assert ax.get_ylim() == (5, -3)

    # Test inverting nonlinear axes.
    fig, ax = plt.subplots()
    ax.set_yscale("log")
    ax.set_ylim(10, 1)
    assert ax.get_ylim() == (10, 1)


@image_comparison(['nonfinite_limits'], style='mpl20')