def test_subportgraph_vertices():
    pg = get_pg()

    sub = SubPortGraph(pg, (0, 2))
    assert set(sub.vertices()) == {0, 2}
def test_subportgraph_vertices():
    pg = get_pg()

    sub = SubPortGraph(pg, (0, 2))
    assert set(sub.vertices()) == {0, 2}
def test_subportgraph_init():
    pg = PortGraph()
    sub = SubPortGraph(pg)

    assert len(tuple(sub.vertices())) == 0
def test_subportgraph_init():
    pg = PortGraph()
    sub = SubPortGraph(pg)

    assert len(tuple(sub.vertices())) == 0