def test_PathCollection_remove_edges():
"""Remove edge path from the path collection."""
a = Node('a')
b = Node('b')
c = Node('c')
e = Edge(a, b, uid='e')
f = Edge(b, c, uid='f')
paths = PathCollection()
paths.add(e, f, uid='p1')
paths.remove(e, f)
assert len(paths) == 0
assert 'p1' not in paths
paths.add(e, f, uid='p1')
paths.remove('p1')
assert len(paths) == 0
paths.add(e, f, uid='p1')
paths.remove(e, f)
assert len(paths) == 0
paths.add(e, f, uid='p1')
paths.remove('e', 'f')
assert len(paths) == 0
def test_PathCollection_remove_path():
"""Remove path from the path collection."""
a = Node('a')
b = Node('b')
c = Node('c')
e = Edge(a, b, uid='e')
f = Edge(b, c, uid='f')
p1 = Path(e, f, uid='p1')
p2 = Path(e, uid='p2')
p3 = Path(a, uid='p3')
paths = PathCollection()
paths.add(p1)
paths.remove(p1)
assert len(paths.nodes) == 0
# assert len(paths.edges) == 2
assert len(paths) == 0
assert p1 not in paths
def test_PathCollection():
"""Test the paths object"""
a = Node('a')
b = Node('b')
c = Node('c')
e = Edge(a, b, uid='e')
f = Edge(b, c, uid='f')
p1 = Path(e, f, uid='p1')
p2 = Path(e, uid='p2')
p3 = Path(a, uid='p3')
paths = PathCollection()
paths.add(p1)
paths.add(p2)
paths.add(p3)
paths.add(p1)
assert paths.counter['p1'] == 2
assert len(paths.nodes) == 3
# assert len(paths.edges) == 2
assert len(paths) == 3
assert p1 in paths
assert p2 in paths
assert p3 in paths
assert 'p1' in paths
assert 'p2' in paths
assert 'p3' in paths
assert (e, f) in paths
assert ('e', 'f') in paths
assert (e, ) in paths
assert ('e', ) in paths
assert (a, ) in paths
assert ('a', ) in paths
a = Node('a')
b = Node('b')
c = Node('c')
p1 = Path(a, b, c, uid='p1')
p2 = Path(a, b, uid='p2')
p3 = Path(a, uid='p3')
paths = PathCollection()
paths.add(p1)
paths.add(p2)
paths.add(p3)
assert (a, b, c) in paths
assert ('a', 'b', 'c') in paths
assert (a, b) in paths
assert ('a', 'b') in paths
assert (a, ) in paths
assert ('a', ) in paths
# assert [a] in paths
# assert ['a'] in paths
assert paths['a', 'b', 'c'] == p1
assert paths['a', 'b'] == p2
with pytest.raises(Exception):
p = paths['x', 'y']
p4 = Path(b, c, uid='p4')
# with pytest.raises(Exception):
paths.add(p4)
assert paths.counter['p4'] == 1
paths = PathCollection()
paths.add(a, b)
# with pytest.raises(Exception):
paths.add(a, b)
assert paths.counter[paths['a', 'b'].uid] == 2
paths = PathCollection()
paths.add('a', 'b', 'c', uid='a-b-c')
assert len(paths) == 1
assert 'a-b-c' in paths
assert 'a' and 'b' and 'c' in paths.nodes
paths = PathCollection()
paths.add(p1, p2)
assert len(paths) == 2
paths = PathCollection()
paths.add(('a', 'b', 'c'), ('a', 'b'))
assert len(paths.nodes) == 3
#assert len(paths.edges) == 2
assert len(paths) == 2
paths = PathCollection()
paths.add(e, f, uid='p1')
assert len(paths) == 1
#assert len(paths.edges) == 2
assert len(paths.nodes) == 2
assert (e, f) in paths
#assert ('a', 'b', 'c') in paths
# with pytest.raises(Exception):
paths.add(f, e, uid='p2')
# paths = PathCollection()
# paths.add('e1', uid='p1', nodes=False)
# assert len(paths) == 1
# assert len(paths.edges) == 1
# assert len(paths.nodes) == 2
# assert 'p1' in paths
# assert 'e1' in paths.edges
# paths = PathCollection()
# paths.add('e1', 'e2', uid='p1', nodes=False)
# assert len(paths) == 1
# assert len(paths.edges) == 2
# assert len(paths.nodes) == 3
# assert 'p1' in paths
# assert 'e1' and 'e2' in paths.edges
# assert paths.edges['e1'].w == paths.edges['e2'].v
# paths = PathCollection()
# paths.add(('e1', 'e2'), ('e3', 'e4'), nodes=False)
# assert len(paths.nodes) == 6
# assert len(paths.edges) == 4
# assert len(paths) == 2
paths = PathCollection()
paths.add(p1, p2, p3)
assert len(paths.nodes) == 3
assert len(paths) == 3
paths.remove(p3)
assert len(paths.nodes) == 3
#assert len(paths.edges) == 2
assert len(paths) == 2
assert p3 not in paths
paths.remove('p1')
assert len(paths.nodes) == 2
#assert len(paths.edges) == 2
assert len(paths) == 1
assert p1 not in paths
paths = PathCollection()
paths.add(('a', 'b', 'c'), ('a', 'b'))
assert len(paths) == 2
paths.remove('a', 'b')
assert len(paths) == 1
paths = PathCollection()
paths.add(('a', 'b'), ('b', 'c'), ('c', 'd'))
paths.remove(('a', 'b'), ('b', 'c'))
assert len(paths) == 1
assert ('a', 'b') not in paths
assert ('b', 'c') not in paths
assert ('c', 'd') in paths
# paths = PathCollection()
# paths.add(('e1', 'e2'), ('e2', 'e3'), ('e3', 'e4'), nodes=False)
# assert len(paths) == 3
# assert len(paths.edges) == 4
# paths.remove('e1', 'e2')
# assert len(paths) == 2
# paths.remove(('e2', 'e3'), ('e3', 'e4'))
# assert len(paths) == 0
paths = PathCollection()
paths.add('a', 'b', uid='p1')
paths.add('b', 'c', uid='p2')
paths.add('c', 'd', uid='p3')
paths.add('d', 'e', uid='p4')
assert len(paths) == 4
paths.remove('p1')
assert len(paths) == 3
paths.remove(('p2', 'p3'))
def test_PathCollection():
"""Test the paths object"""
a = Node('a')
b = Node('b')
c = Node('c')
e = Edge(a, b, uid='e')
f = Edge(b, c, uid='f')
p1 = Path(e, f, uid='p1')
p2 = Path(e, uid='p2')
p3 = Path(a, uid='p3')
paths = PathCollection()
paths.add(p1)
paths.add(p2)
paths.add(p3)
with pytest.raises(Exception):
paths.add(p1)
assert len(paths.nodes) == 3
assert len(paths.edges) == 2
assert len(paths) == 3
assert p1 in paths
assert p2 in paths
assert p3 in paths
assert 'p1' in paths
assert 'p2' in paths
assert 'p3' in paths
assert (e, f) in paths
assert ('e', 'f') in paths
assert [e] in paths
assert ['e'] in paths
assert (a, b, c) in paths
assert ('a', 'b', 'c') in paths
assert (a, b) in paths
assert ('a', 'b') in paths
assert (a, ) in paths
assert ('a', ) in paths
assert [a] in paths
assert ['a'] in paths
# print(paths['p1'] == p1)
#print(paths[p1] == p1)
assert paths['a', 'b', 'c'] == p1
assert paths['e', 'f'] == p1
with pytest.raises(Exception):
p = paths['x', 'y']
g = Edge(b, c, uid='a')
p4 = Path(g, uid='p4')
paths.add(p4)
# issue warning
assert ['a'] in paths
paths = PathCollection()
paths.add(a, b)
with pytest.raises(Exception):
paths.add(a, b)
paths = PathCollection()
paths.add('a', 'b', 'c', uid='a-b-c')
assert len(paths) == 1
assert 'a-b-c' in paths
assert 'a' and 'b' and 'c' in paths.nodes
assert ('a', 'b') and ('b', 'c') in paths.edges
paths = PathCollection()
paths.add(p1, p2)
assert len(paths) == 2
paths = PathCollection()
paths.add(('a', 'b', 'c'), ('a', 'b'))
assert len(paths.nodes) == 3
assert len(paths.edges) == 2
assert len(paths) == 2
paths = PathCollection()
paths.add(e, f, uid='p1')
assert len(paths) == 1
assert len(paths.edges) == 2
assert len(paths.nodes) == 3
assert (e, f) in paths
assert ('a', 'b', 'c') in paths
with pytest.raises(Exception):
paths.add(f, e, uid='p2')
paths = PathCollection()
paths.add('e1', uid='p1', nodes=False)
assert len(paths) == 1
assert len(paths.edges) == 1
assert len(paths.nodes) == 2
assert 'p1' in paths
assert 'e1' in paths.edges
paths = PathCollection()
paths.add('e1', 'e2', uid='p1', nodes=False)
assert len(paths) == 1
assert len(paths.edges) == 2
assert len(paths.nodes) == 3
assert 'p1' in paths
assert 'e1' and 'e2' in paths.edges
assert paths.edges['e1'].w == paths.edges['e2'].v
paths = PathCollection()
paths.add(('e1', 'e2'), ('e3', 'e4'), nodes=False)
assert len(paths.nodes) == 6
assert len(paths.edges) == 4
assert len(paths) == 2
paths = PathCollection()
paths.add(p1, p2, p3)
assert len(paths.nodes) == 3
assert len(paths.edges) == 2
assert len(paths) == 3
paths.remove(p3)
assert len(paths.nodes) == 3
assert len(paths.edges) == 2
assert len(paths) == 2
assert p3 not in paths
paths.remove('p1')
assert len(paths.nodes) == 3
assert len(paths.edges) == 2
assert len(paths) == 1
assert p1 not in paths
paths = PathCollection()
paths.add(('a', 'b', 'c'), ('a', 'b'))
assert len(paths) == 2
paths.remove('a', 'b')
assert len(paths) == 1
paths = PathCollection()
paths.add(('a', 'b'), ('b', 'c'), ('c', 'd'))
paths.remove(('a', 'b'), ('b', 'c'))
assert len(paths) == 1
assert ('a', 'b') not in paths
assert ('b', 'c') not in paths
assert ('c', 'd') in paths
paths = PathCollection()
paths.add(('e1', 'e2'), ('e2', 'e3'), ('e3', 'e4'), nodes=False)
assert len(paths) == 3
assert len(paths.edges) == 4
paths.remove('e1', 'e2')
assert len(paths) == 2
paths.remove(('e2', 'e3'), ('e3', 'e4'))
assert len(paths) == 0
paths = PathCollection()
paths.add('a', 'b', uid='p1')
paths.add('b', 'c', uid='p2')
paths.add('c', 'd', uid='p3')
paths.add('d', 'e', uid='p4')
assert len(paths) == 4
paths.remove('p1')
assert len(paths) == 3
paths.remove('p2', 'p3')
assert len(paths) == 1