def test_LE_network_draw():
x = Bidirectional_Ring(8)
A = LCR(x)
node_colors, edge_colors = A.get_draw_args(x)
assert edge_colors is None
assert len(node_colors) == len(x)
x.draw()
def test_no_draw_args_alg_network_draw():
x = Bidirectional_Ring(8)
A = Do_Nothing(x)
assert not hasattr(A, 'get_draw_args')
x.draw()
