def test_tarjan_example_2(self):
# Graph from https://en.wikipedia.org/wiki/Tarjan%27s_strongly_connected_components_algorithm#/media/File:Tarjan%27s_Algorithm_Animation.gif
example = {
'A': ['E'],
'B': ['A'],
'C': ['B', 'D'],
'D': ['C'],
'E': ['B'],
'F': ['B', 'E', 'G'],
'G': ['F', 'C'],
'H': ['G', 'H', 'D']
}
g = Tarjan(example)
self.assertEqual(g.sccs, [['A', 'B', 'E'], ['C', 'D'], ['F', 'G'], ['H']])
def test_tarjan_example_1(self):
# Graph from https://en.wikipedia.org/wiki/File:Scc.png
example = {
'A': ['B'],
'B': ['C', 'E', 'F'],
'C': ['D', 'G'],
'D': ['C', 'H'],
'E': ['A', 'F'],
'F': ['G'],
'G': ['F'],
'H': ['D', 'G']
}
g = Tarjan(example)
self.assertEqual(g.sccs, [['F', 'G'], ['C', 'D', 'H'], ['A', 'B', 'E']])
def test_tarjan_example_2(self):
# Graph from https://en.wikipedia.org/wiki/Tarjan%27s_strongly_connected_components_algorithm#/media/File:Tarjan%27s_Algorithm_Animation.gif
example = {
"A": ["E"],
"B": ["A"],
"C": ["B", "D"],
"D": ["C"],
"E": ["B"],
"F": ["B", "E", "G"],
"G": ["F", "C"],
"H": ["G", "H", "D"],
}
g = Tarjan(example)
self.assertEqual(g.sccs,
[["A", "B", "E"], ["C", "D"], ["F", "G"], ["H"]])
def test_tarjan_example_1(self):
# Graph from https://en.wikipedia.org/wiki/File:Scc.png
example = {
"A": ["B"],
"B": ["C", "E", "F"],
"C": ["D", "G"],
"D": ["C", "H"],
"E": ["A", "F"],
"F": ["G"],
"G": ["F"],
"H": ["D", "G"],
}
g = Tarjan(example)
self.assertEqual(g.sccs,
[["F", "G"], ["C", "D", "H"], ["A", "B", "E"]])