Mercurial > repos > shellac > sam_consensus_v3
diff env/lib/python3.9/site-packages/networkx/classes/tests/test_multigraph.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
---|---|
date | Mon, 22 Mar 2021 18:12:50 +0000 |
parents | |
children |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/env/lib/python3.9/site-packages/networkx/classes/tests/test_multigraph.py Mon Mar 22 18:12:50 2021 +0000 @@ -0,0 +1,375 @@ +import pytest + +import networkx as nx +from networkx.testing.utils import assert_edges_equal + +from .test_graph import BaseAttrGraphTester +from .test_graph import TestGraph as _TestGraph + + +class BaseMultiGraphTester(BaseAttrGraphTester): + def test_has_edge(self): + G = self.K3 + assert G.has_edge(0, 1) + assert not G.has_edge(0, -1) + assert G.has_edge(0, 1, 0) + assert not G.has_edge(0, 1, 1) + + def test_get_edge_data(self): + G = self.K3 + assert G.get_edge_data(0, 1) == {0: {}} + assert G[0][1] == {0: {}} + assert G[0][1][0] == {} + assert G.get_edge_data(10, 20) is None + assert G.get_edge_data(0, 1, 0) == {} + + def test_adjacency(self): + G = self.K3 + assert dict(G.adjacency()) == { + 0: {1: {0: {}}, 2: {0: {}}}, + 1: {0: {0: {}}, 2: {0: {}}}, + 2: {0: {0: {}}, 1: {0: {}}}, + } + + def deepcopy_edge_attr(self, H, G): + assert G[1][2][0]["foo"] == H[1][2][0]["foo"] + G[1][2][0]["foo"].append(1) + assert G[1][2][0]["foo"] != H[1][2][0]["foo"] + + def shallow_copy_edge_attr(self, H, G): + assert G[1][2][0]["foo"] == H[1][2][0]["foo"] + G[1][2][0]["foo"].append(1) + assert G[1][2][0]["foo"] == H[1][2][0]["foo"] + + def graphs_equal(self, H, G): + assert G._adj == H._adj + assert G._node == H._node + assert G.graph == H.graph + assert G.name == H.name + if not G.is_directed() and not H.is_directed(): + assert H._adj[1][2][0] is H._adj[2][1][0] + assert G._adj[1][2][0] is G._adj[2][1][0] + else: # at least one is directed + if not G.is_directed(): + G._pred = G._adj + G._succ = G._adj + if not H.is_directed(): + H._pred = H._adj + H._succ = H._adj + assert G._pred == H._pred + assert G._succ == H._succ + assert H._succ[1][2][0] is H._pred[2][1][0] + assert G._succ[1][2][0] is G._pred[2][1][0] + + def same_attrdict(self, H, G): + # same attrdict in the edgedata + old_foo = H[1][2][0]["foo"] + H.adj[1][2][0]["foo"] = "baz" + assert G._adj == H._adj + H.adj[1][2][0]["foo"] = old_foo + assert G._adj == H._adj + + old_foo = H.nodes[0]["foo"] + H.nodes[0]["foo"] = "baz" + assert G._node == H._node + H.nodes[0]["foo"] = old_foo + assert G._node == H._node + + def different_attrdict(self, H, G): + # used by graph_equal_but_different + old_foo = H[1][2][0]["foo"] + H.adj[1][2][0]["foo"] = "baz" + assert G._adj != H._adj + H.adj[1][2][0]["foo"] = old_foo + assert G._adj == H._adj + + old_foo = H.nodes[0]["foo"] + H.nodes[0]["foo"] = "baz" + assert G._node != H._node + H.nodes[0]["foo"] = old_foo + assert G._node == H._node + + def test_to_undirected(self): + G = self.K3 + self.add_attributes(G) + H = nx.MultiGraph(G) + self.is_shallow_copy(H, G) + H = G.to_undirected() + self.is_deepcopy(H, G) + + def test_to_directed(self): + G = self.K3 + self.add_attributes(G) + H = nx.MultiDiGraph(G) + self.is_shallow_copy(H, G) + H = G.to_directed() + self.is_deepcopy(H, G) + + def test_number_of_edges_selfloops(self): + G = self.K3 + G.add_edge(0, 0) + G.add_edge(0, 0) + G.add_edge(0, 0, key="parallel edge") + G.remove_edge(0, 0, key="parallel edge") + assert G.number_of_edges(0, 0) == 2 + G.remove_edge(0, 0) + assert G.number_of_edges(0, 0) == 1 + + def test_edge_lookup(self): + G = self.Graph() + G.add_edge(1, 2, foo="bar") + G.add_edge(1, 2, "key", foo="biz") + assert_edges_equal(G.edges[1, 2, 0], {"foo": "bar"}) + assert_edges_equal(G.edges[1, 2, "key"], {"foo": "biz"}) + + def test_edge_attr4(self): + G = self.Graph() + G.add_edge(1, 2, key=0, data=7, spam="bar", bar="foo") + assert_edges_equal( + G.edges(data=True), [(1, 2, {"data": 7, "spam": "bar", "bar": "foo"})] + ) + G[1][2][0]["data"] = 10 # OK to set data like this + assert_edges_equal( + G.edges(data=True), [(1, 2, {"data": 10, "spam": "bar", "bar": "foo"})] + ) + + G.adj[1][2][0]["data"] = 20 + assert_edges_equal( + G.edges(data=True), [(1, 2, {"data": 20, "spam": "bar", "bar": "foo"})] + ) + G.edges[1, 2, 0]["data"] = 21 # another spelling, "edge" + assert_edges_equal( + G.edges(data=True), [(1, 2, {"data": 21, "spam": "bar", "bar": "foo"})] + ) + G.adj[1][2][0]["listdata"] = [20, 200] + G.adj[1][2][0]["weight"] = 20 + assert_edges_equal( + G.edges(data=True), + [ + ( + 1, + 2, + { + "data": 21, + "spam": "bar", + "bar": "foo", + "listdata": [20, 200], + "weight": 20, + }, + ) + ], + ) + + +class TestMultiGraph(BaseMultiGraphTester, _TestGraph): + def setup_method(self): + self.Graph = nx.MultiGraph + # build K3 + ed1, ed2, ed3 = ({0: {}}, {0: {}}, {0: {}}) + self.k3adj = {0: {1: ed1, 2: ed2}, 1: {0: ed1, 2: ed3}, 2: {0: ed2, 1: ed3}} + self.k3edges = [(0, 1), (0, 2), (1, 2)] + self.k3nodes = [0, 1, 2] + self.K3 = self.Graph() + self.K3._adj = self.k3adj + self.K3._node = {} + self.K3._node[0] = {} + self.K3._node[1] = {} + self.K3._node[2] = {} + + def test_data_input(self): + G = self.Graph({1: [2], 2: [1]}, name="test") + assert G.name == "test" + expected = [(1, {2: {0: {}}}), (2, {1: {0: {}}})] + assert sorted(G.adj.items()) == expected + + def test_getitem(self): + G = self.K3 + assert G[0] == {1: {0: {}}, 2: {0: {}}} + with pytest.raises(KeyError): + G.__getitem__("j") + with pytest.raises(TypeError): + G.__getitem__(["A"]) + + def test_remove_node(self): + G = self.K3 + G.remove_node(0) + assert G.adj == {1: {2: {0: {}}}, 2: {1: {0: {}}}} + with pytest.raises(nx.NetworkXError): + G.remove_node(-1) + + def test_add_edge(self): + G = self.Graph() + G.add_edge(0, 1) + assert G.adj == {0: {1: {0: {}}}, 1: {0: {0: {}}}} + G = self.Graph() + G.add_edge(*(0, 1)) + assert G.adj == {0: {1: {0: {}}}, 1: {0: {0: {}}}} + + def test_add_edge_conflicting_key(self): + G = self.Graph() + G.add_edge(0, 1, key=1) + G.add_edge(0, 1) + assert G.number_of_edges() == 2 + G = self.Graph() + G.add_edges_from([(0, 1, 1, {})]) + G.add_edges_from([(0, 1)]) + assert G.number_of_edges() == 2 + + def test_add_edges_from(self): + G = self.Graph() + G.add_edges_from([(0, 1), (0, 1, {"weight": 3})]) + assert G.adj == { + 0: {1: {0: {}, 1: {"weight": 3}}}, + 1: {0: {0: {}, 1: {"weight": 3}}}, + } + G.add_edges_from([(0, 1), (0, 1, {"weight": 3})], weight=2) + assert G.adj == { + 0: {1: {0: {}, 1: {"weight": 3}, 2: {"weight": 2}, 3: {"weight": 3}}}, + 1: {0: {0: {}, 1: {"weight": 3}, 2: {"weight": 2}, 3: {"weight": 3}}}, + } + G = self.Graph() + edges = [ + (0, 1, {"weight": 3}), + (0, 1, (("weight", 2),)), + (0, 1, 5), + (0, 1, "s"), + ] + G.add_edges_from(edges) + keydict = {0: {"weight": 3}, 1: {"weight": 2}, 5: {}, "s": {}} + assert G._adj == {0: {1: keydict}, 1: {0: keydict}} + + # too few in tuple + with pytest.raises(nx.NetworkXError): + G.add_edges_from([(0,)]) + # too many in tuple + with pytest.raises(nx.NetworkXError): + G.add_edges_from([(0, 1, 2, 3, 4)]) + # not a tuple + with pytest.raises(TypeError): + G.add_edges_from([0]) + + def test_remove_edge(self): + G = self.K3 + G.remove_edge(0, 1) + assert G.adj == {0: {2: {0: {}}}, 1: {2: {0: {}}}, 2: {0: {0: {}}, 1: {0: {}}}} + + with pytest.raises(nx.NetworkXError): + G.remove_edge(-1, 0) + with pytest.raises(nx.NetworkXError): + G.remove_edge(0, 2, key=1) + + def test_remove_edges_from(self): + G = self.K3.copy() + G.remove_edges_from([(0, 1)]) + kd = {0: {}} + assert G.adj == {0: {2: kd}, 1: {2: kd}, 2: {0: kd, 1: kd}} + G.remove_edges_from([(0, 0)]) # silent fail + self.K3.add_edge(0, 1) + G = self.K3.copy() + G.remove_edges_from(list(G.edges(data=True, keys=True))) + assert G.adj == {0: {}, 1: {}, 2: {}} + G = self.K3.copy() + G.remove_edges_from(list(G.edges(data=False, keys=True))) + assert G.adj == {0: {}, 1: {}, 2: {}} + G = self.K3.copy() + G.remove_edges_from(list(G.edges(data=False, keys=False))) + assert G.adj == {0: {}, 1: {}, 2: {}} + G = self.K3.copy() + G.remove_edges_from([(0, 1, 0), (0, 2, 0, {}), (1, 2)]) + assert G.adj == {0: {1: {1: {}}}, 1: {0: {1: {}}}, 2: {}} + + def test_remove_multiedge(self): + G = self.K3 + G.add_edge(0, 1, key="parallel edge") + G.remove_edge(0, 1, key="parallel edge") + assert G.adj == { + 0: {1: {0: {}}, 2: {0: {}}}, + 1: {0: {0: {}}, 2: {0: {}}}, + 2: {0: {0: {}}, 1: {0: {}}}, + } + G.remove_edge(0, 1) + kd = {0: {}} + assert G.adj == {0: {2: kd}, 1: {2: kd}, 2: {0: kd, 1: kd}} + with pytest.raises(nx.NetworkXError): + G.remove_edge(-1, 0) + + +class TestEdgeSubgraph: + """Unit tests for the :meth:`MultiGraph.edge_subgraph` method.""" + + def setup_method(self): + # Create a doubly-linked path graph on five nodes. + G = nx.MultiGraph() + nx.add_path(G, range(5)) + nx.add_path(G, range(5)) + # Add some node, edge, and graph attributes. + for i in range(5): + G.nodes[i]["name"] = f"node{i}" + G.adj[0][1][0]["name"] = "edge010" + G.adj[0][1][1]["name"] = "edge011" + G.adj[3][4][0]["name"] = "edge340" + G.adj[3][4][1]["name"] = "edge341" + G.graph["name"] = "graph" + # Get the subgraph induced by one of the first edges and one of + # the last edges. + self.G = G + self.H = G.edge_subgraph([(0, 1, 0), (3, 4, 1)]) + + def test_correct_nodes(self): + """Tests that the subgraph has the correct nodes.""" + assert [0, 1, 3, 4] == sorted(self.H.nodes()) + + def test_correct_edges(self): + """Tests that the subgraph has the correct edges.""" + assert [(0, 1, 0, "edge010"), (3, 4, 1, "edge341")] == sorted( + self.H.edges(keys=True, data="name") + ) + + def test_add_node(self): + """Tests that adding a node to the original graph does not + affect the nodes of the subgraph. + + """ + self.G.add_node(5) + assert [0, 1, 3, 4] == sorted(self.H.nodes()) + + def test_remove_node(self): + """Tests that removing a node in the original graph does + affect the nodes of the subgraph. + + """ + self.G.remove_node(0) + assert [1, 3, 4] == sorted(self.H.nodes()) + + def test_node_attr_dict(self): + """Tests that the node attribute dictionary of the two graphs is + the same object. + + """ + for v in self.H: + assert self.G.nodes[v] == self.H.nodes[v] + # Making a change to G should make a change in H and vice versa. + self.G.nodes[0]["name"] = "foo" + assert self.G.nodes[0] == self.H.nodes[0] + self.H.nodes[1]["name"] = "bar" + assert self.G.nodes[1] == self.H.nodes[1] + + def test_edge_attr_dict(self): + """Tests that the edge attribute dictionary of the two graphs is + the same object. + + """ + for u, v, k in self.H.edges(keys=True): + assert self.G._adj[u][v][k] == self.H._adj[u][v][k] + # Making a change to G should make a change in H and vice versa. + self.G._adj[0][1][0]["name"] = "foo" + assert self.G._adj[0][1][0]["name"] == self.H._adj[0][1][0]["name"] + self.H._adj[3][4][1]["name"] = "bar" + assert self.G._adj[3][4][1]["name"] == self.H._adj[3][4][1]["name"] + + def test_graph_attr_dict(self): + """Tests that the graph attribute dictionary of the two graphs + is the same object. + + """ + assert self.G.graph is self.H.graph