Mercurial > repos > shellac > sam_consensus_v3
diff env/lib/python3.9/site-packages/networkx/readwrite/tests/test_edgelist.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/env/lib/python3.9/site-packages/networkx/readwrite/tests/test_edgelist.py Mon Mar 22 18:12:50 2021 +0000 @@ -0,0 +1,275 @@ +""" + Unit tests for edgelists. +""" +import pytest +import io +import tempfile +import os + +import networkx as nx +from networkx.testing import assert_edges_equal, assert_nodes_equal, assert_graphs_equal + + +class TestEdgelist: + @classmethod + def setup_class(cls): + cls.G = nx.Graph(name="test") + e = [("a", "b"), ("b", "c"), ("c", "d"), ("d", "e"), ("e", "f"), ("a", "f")] + cls.G.add_edges_from(e) + cls.G.add_node("g") + cls.DG = nx.DiGraph(cls.G) + cls.XG = nx.MultiGraph() + cls.XG.add_weighted_edges_from([(1, 2, 5), (1, 2, 5), (1, 2, 1), (3, 3, 42)]) + cls.XDG = nx.MultiDiGraph(cls.XG) + + def test_read_edgelist_1(self): + s = b"""\ +# comment line +1 2 +# comment line +2 3 +""" + bytesIO = io.BytesIO(s) + G = nx.read_edgelist(bytesIO, nodetype=int) + assert_edges_equal(G.edges(), [(1, 2), (2, 3)]) + + def test_read_edgelist_2(self): + s = b"""\ +# comment line +1 2 2.0 +# comment line +2 3 3.0 +""" + bytesIO = io.BytesIO(s) + G = nx.read_edgelist(bytesIO, nodetype=int, data=False) + assert_edges_equal(G.edges(), [(1, 2), (2, 3)]) + + bytesIO = io.BytesIO(s) + G = nx.read_weighted_edgelist(bytesIO, nodetype=int) + assert_edges_equal( + G.edges(data=True), [(1, 2, {"weight": 2.0}), (2, 3, {"weight": 3.0})] + ) + + def test_read_edgelist_3(self): + s = b"""\ +# comment line +1 2 {'weight':2.0} +# comment line +2 3 {'weight':3.0} +""" + bytesIO = io.BytesIO(s) + G = nx.read_edgelist(bytesIO, nodetype=int, data=False) + assert_edges_equal(G.edges(), [(1, 2), (2, 3)]) + + bytesIO = io.BytesIO(s) + G = nx.read_edgelist(bytesIO, nodetype=int, data=True) + assert_edges_equal( + G.edges(data=True), [(1, 2, {"weight": 2.0}), (2, 3, {"weight": 3.0})] + ) + + def test_read_edgelist_4(self): + s = b"""\ +# comment line +1 2 {'weight':2.0} +# comment line +2 3 {'weight':3.0} +""" + bytesIO = io.BytesIO(s) + G = nx.read_edgelist(bytesIO, nodetype=int, data=False) + assert_edges_equal(G.edges(), [(1, 2), (2, 3)]) + + bytesIO = io.BytesIO(s) + G = nx.read_edgelist(bytesIO, nodetype=int, data=True) + assert_edges_equal( + G.edges(data=True), [(1, 2, {"weight": 2.0}), (2, 3, {"weight": 3.0})] + ) + + s = """\ +# comment line +1 2 {'weight':2.0} +# comment line +2 3 {'weight':3.0} +""" + StringIO = io.StringIO(s) + G = nx.read_edgelist(StringIO, nodetype=int, data=False) + assert_edges_equal(G.edges(), [(1, 2), (2, 3)]) + + StringIO = io.StringIO(s) + G = nx.read_edgelist(StringIO, nodetype=int, data=True) + assert_edges_equal( + G.edges(data=True), [(1, 2, {"weight": 2.0}), (2, 3, {"weight": 3.0})] + ) + + def test_read_edgelist_5(self): + s = b"""\ +# comment line +1 2 {'weight':2.0, 'color':'green'} +# comment line +2 3 {'weight':3.0, 'color':'red'} +""" + bytesIO = io.BytesIO(s) + G = nx.read_edgelist(bytesIO, nodetype=int, data=False) + assert_edges_equal(G.edges(), [(1, 2), (2, 3)]) + + bytesIO = io.BytesIO(s) + G = nx.read_edgelist(bytesIO, nodetype=int, data=True) + assert_edges_equal( + G.edges(data=True), + [ + (1, 2, {"weight": 2.0, "color": "green"}), + (2, 3, {"weight": 3.0, "color": "red"}), + ], + ) + + def test_read_edgelist_6(self): + s = b"""\ +# comment line +1, 2, {'weight':2.0, 'color':'green'} +# comment line +2, 3, {'weight':3.0, 'color':'red'} +""" + bytesIO = io.BytesIO(s) + G = nx.read_edgelist(bytesIO, nodetype=int, data=False, delimiter=",") + assert_edges_equal(G.edges(), [(1, 2), (2, 3)]) + + bytesIO = io.BytesIO(s) + G = nx.read_edgelist(bytesIO, nodetype=int, data=True, delimiter=",") + assert_edges_equal( + G.edges(data=True), + [ + (1, 2, {"weight": 2.0, "color": "green"}), + (2, 3, {"weight": 3.0, "color": "red"}), + ], + ) + + def test_write_edgelist_1(self): + fh = io.BytesIO() + G = nx.OrderedGraph() + G.add_edges_from([(1, 2), (2, 3)]) + nx.write_edgelist(G, fh, data=False) + fh.seek(0) + assert fh.read() == b"1 2\n2 3\n" + + def test_write_edgelist_2(self): + fh = io.BytesIO() + G = nx.OrderedGraph() + G.add_edges_from([(1, 2), (2, 3)]) + nx.write_edgelist(G, fh, data=True) + fh.seek(0) + assert fh.read() == b"1 2 {}\n2 3 {}\n" + + def test_write_edgelist_3(self): + fh = io.BytesIO() + G = nx.OrderedGraph() + G.add_edge(1, 2, weight=2.0) + G.add_edge(2, 3, weight=3.0) + nx.write_edgelist(G, fh, data=True) + fh.seek(0) + assert fh.read() == b"1 2 {'weight': 2.0}\n2 3 {'weight': 3.0}\n" + + def test_write_edgelist_4(self): + fh = io.BytesIO() + G = nx.OrderedGraph() + G.add_edge(1, 2, weight=2.0) + G.add_edge(2, 3, weight=3.0) + nx.write_edgelist(G, fh, data=[("weight")]) + fh.seek(0) + assert fh.read() == b"1 2 2.0\n2 3 3.0\n" + + def test_unicode(self): + G = nx.Graph() + name1 = chr(2344) + chr(123) + chr(6543) + name2 = chr(5543) + chr(1543) + chr(324) + G.add_edge(name1, "Radiohead", **{name2: 3}) + fd, fname = tempfile.mkstemp() + nx.write_edgelist(G, fname) + H = nx.read_edgelist(fname) + assert_graphs_equal(G, H) + os.close(fd) + os.unlink(fname) + + def test_latin1_issue(self): + G = nx.Graph() + name1 = chr(2344) + chr(123) + chr(6543) + name2 = chr(5543) + chr(1543) + chr(324) + G.add_edge(name1, "Radiohead", **{name2: 3}) + fd, fname = tempfile.mkstemp() + pytest.raises( + UnicodeEncodeError, nx.write_edgelist, G, fname, encoding="latin-1" + ) + os.close(fd) + os.unlink(fname) + + def test_latin1(self): + G = nx.Graph() + name1 = "Bj" + chr(246) + "rk" + name2 = chr(220) + "ber" + G.add_edge(name1, "Radiohead", **{name2: 3}) + fd, fname = tempfile.mkstemp() + nx.write_edgelist(G, fname, encoding="latin-1") + H = nx.read_edgelist(fname, encoding="latin-1") + assert_graphs_equal(G, H) + os.close(fd) + os.unlink(fname) + + def test_edgelist_graph(self): + G = self.G + (fd, fname) = tempfile.mkstemp() + nx.write_edgelist(G, fname) + H = nx.read_edgelist(fname) + H2 = nx.read_edgelist(fname) + assert H != H2 # they should be different graphs + G.remove_node("g") # isolated nodes are not written in edgelist + assert_nodes_equal(list(H), list(G)) + assert_edges_equal(list(H.edges()), list(G.edges())) + os.close(fd) + os.unlink(fname) + + def test_edgelist_digraph(self): + G = self.DG + (fd, fname) = tempfile.mkstemp() + nx.write_edgelist(G, fname) + H = nx.read_edgelist(fname, create_using=nx.DiGraph()) + H2 = nx.read_edgelist(fname, create_using=nx.DiGraph()) + assert H != H2 # they should be different graphs + G.remove_node("g") # isolated nodes are not written in edgelist + assert_nodes_equal(list(H), list(G)) + assert_edges_equal(list(H.edges()), list(G.edges())) + os.close(fd) + os.unlink(fname) + + def test_edgelist_integers(self): + G = nx.convert_node_labels_to_integers(self.G) + (fd, fname) = tempfile.mkstemp() + nx.write_edgelist(G, fname) + H = nx.read_edgelist(fname, nodetype=int) + # isolated nodes are not written in edgelist + G.remove_nodes_from(list(nx.isolates(G))) + assert_nodes_equal(list(H), list(G)) + assert_edges_equal(list(H.edges()), list(G.edges())) + os.close(fd) + os.unlink(fname) + + def test_edgelist_multigraph(self): + G = self.XG + (fd, fname) = tempfile.mkstemp() + nx.write_edgelist(G, fname) + H = nx.read_edgelist(fname, nodetype=int, create_using=nx.MultiGraph()) + H2 = nx.read_edgelist(fname, nodetype=int, create_using=nx.MultiGraph()) + assert H != H2 # they should be different graphs + assert_nodes_equal(list(H), list(G)) + assert_edges_equal(list(H.edges()), list(G.edges())) + os.close(fd) + os.unlink(fname) + + def test_edgelist_multidigraph(self): + G = self.XDG + (fd, fname) = tempfile.mkstemp() + nx.write_edgelist(G, fname) + H = nx.read_edgelist(fname, nodetype=int, create_using=nx.MultiDiGraph()) + H2 = nx.read_edgelist(fname, nodetype=int, create_using=nx.MultiDiGraph()) + assert H != H2 # they should be different graphs + assert_nodes_equal(list(H), list(G)) + assert_edges_equal(list(H.edges()), list(G.edges())) + os.close(fd) + os.unlink(fname)