def test_single_node(self):
# Is this really the intended behavior for providing a
# single node as the argument `nodes`? Shouldn't the function
# just return the connectivity value itself?
G = nx.trivial_graph()
conn = nx.builtin.average_degree_connectivity(G)
assert conn == {0: 0}
def test_empty_list(self):
"""Tests that the empty list is not a valid path, since there
should be a one-to-one correspondence between paths as lists of
nodes and paths as lists of edges.
"""
G = nx.trivial_graph()
assert not nx.builtin.is_simple_path(G, [])
def test_trivial_graph(self):
"""Tests that the trivial graph has average path length zero,
since there is exactly one path of length zero in the trivial
graph.
For more information, see issue #1960.
"""
G = nx.trivial_graph()
assert nx.average_shortest_path_length(G) == 0
def test_single_node(self):
G = nx.trivial_graph()
p = nx.builtin.voterank(G)
assert p == []
def test_trivial_nonpath(self):
"""Tests that a list whose sole element is an object not in the
graph is not considered a simple path.
"""
G = nx.trivial_graph()
assert not nx.builtin.is_simple_path(G, ["not a node"])
def test_trivial_path(self):
"""Tests that the trivial path, a path of length one, is
considered a simple path in a graph.
"""
G = nx.trivial_graph()
assert nx.builtin.is_simple_path(G, [0])