def test_triplot_return(): # Check that triplot returns the artists it adds from matplotlib.figure import Figure ax = Figure().add_axes([0.1, 0.1, 0.7, 0.7]) triang = mtri.Triangulation([0.0, 1.0, 0.0, 1.0], [0.0, 0.0, 1.0, 1.0], triangles=[[0, 1, 3], [3, 2, 0]]) if ax.triplot(triang, "b-") is None: raise AssertionError("triplot should return the artist it adds")