def METHOD_NAME(shape):
    """Test spacing of nodes."""
    graph = FramedVoronoiGraph(shape, xy_spacing=1.0, xy_min_spacing=0.5)
    assert_array_less(0.497, graph.length_of_link)
    assert_array_less(graph.length_of_link, np.sqrt(1.5**2 + 1.5**2))