Python MarkedPatternGraph.has_marked_arrowhead示例

示例#1

def test_has_arrowhead_with_marked_arrowhead():
    graph = MarkedPatternGraph(nodes=['a', 'b'])
    graph.add_undirected_edge(('a', 'b'))
    assert graph.has_arrowhead(('a', 'b')) == False

    graph.add_marked_arrowhead(('a', 'b'))

    assert graph.has_arrowhead(('a', 'b')) == True
    assert graph.has_marked_arrowhead(('a', 'b')) == True

示例#2

def test_has_marked_path():
    graph = MarkedPatternGraph(nodes=['a', 'b'])
    graph.add_undirected_edge(('a', 'b'))
    graph.add_marked_arrowhead(('a', 'b'))

    assert graph.has_marked_arrowhead(('a', 'b')) == True

    graph.add_undirected_edge(('b', 'c'))

    assert graph.has_marked_path(('a', 'c')) == False

    graph.add_marked_arrowhead(('b', 'c'))

    assert graph.has_marked_path(('a', 'c')) == True

    assert graph.get_nodes_of_edges() == set({'a', 'b', 'c'})