# -*- coding: utf-8 -*- """ Unit tests for adjlist. """ from nose.tools import assert_equal, assert_raises, assert_not_equal import os import tempfile import networkx as nx class TestAdjlist(): def setUp(self): self.G=nx.Graph(name="test") e=[('a','b'),('b','c'),('c','d'),('d','e'),('e','f'),('a','f')] self.G.add_edges_from(e) self.G.add_node('g') self.DG=nx.DiGraph(self.G) self.XG=nx.MultiGraph() self.XG.add_weighted_edges_from([(1,2,5),(1,2,5),(1,2,1),(3,3,42)]) self. XDG=nx.MultiDiGraph(self.XG) def test_read_multiline_adjlist_1(self): # Unit test for https://networkx.lanl.gov/trac/ticket/252 s = b"""# comment line 1 2 # comment line 2 3 """ import io bytesIO = io.BytesIO(s) G = nx.read_multiline_adjlist(bytesIO) adj = {'1': {'3': {}, '2': {}}, '3': {'1': {}}, '2': {'1': {}}} assert_equal(G.adj, adj) def test_unicode(self): G = nx.Graph() try: # Python 3.x name1 = chr(2344) + chr(123) + chr(6543) name2 = chr(5543) + chr(1543) + chr(324) except ValueError: # Python 2.6+ name1 = unichr(2344) + unichr(123) + unichr(6543) name2 = unichr(5543) + unichr(1543) + unichr(324) G.add_edge(name1, 'Radiohead', {name2: 3}) fd, fname = tempfile.mkstemp() nx.write_multiline_adjlist(G, fname) H = nx.read_multiline_adjlist(fname) assert_equal(G.adj, H.adj) os.close(fd) os.unlink(fname) def test_latin1_error(self): G = nx.Graph() try: # Python 3.x name1 = chr(2344) + chr(123) + chr(6543) name2 = chr(5543) + chr(1543) + chr(324) except ValueError: # Python 2.6+ name1 = unichr(2344) + unichr(123) + unichr(6543) name2 = unichr(5543) + unichr(1543) + unichr(324) G.add_edge(name1, 'Radiohead', {name2: 3}) fd, fname = tempfile.mkstemp() assert_raises(UnicodeEncodeError, nx.write_multiline_adjlist, G, fname, encoding = 'latin-1') os.close(fd) os.unlink(fname) def test_latin1(self): G = nx.Graph() try: # Python 3.x blurb = chr(1245) # just to trigger the exception name1 = 'Bj' + chr(246) + 'rk' name2 = chr(220) + 'ber' except ValueError: # Python 2.6+ name1 = 'Bj' + unichr(246) + 'rk' name2 = unichr(220) + 'ber' G.add_edge(name1, 'Radiohead', {name2: 3}) fd, fname = tempfile.mkstemp() nx.write_multiline_adjlist(G, fname, encoding = 'latin-1') H = nx.read_multiline_adjlist(fname, encoding = 'latin-1') assert_equal(G.adj, H.adj) os.close(fd) os.unlink(fname) def test_adjlist_graph(self): G=self.G (fd,fname)=tempfile.mkstemp() nx.write_adjlist(G,fname) H=nx.read_adjlist(fname) H2=nx.read_adjlist(fname) assert_not_equal(H,H2) # they should be different graphs assert_equal(sorted(H.nodes()),sorted(G.nodes())) assert_equal(sorted(H.edges()),sorted(G.edges())) os.close(fd) os.unlink(fname) def test_adjlist_digraph(self): G=self.DG (fd,fname)=tempfile.mkstemp() nx.write_adjlist(G,fname) H=nx.read_adjlist(fname,create_using=nx.DiGraph()) H2=nx.read_adjlist(fname,create_using=nx.DiGraph()) assert_not_equal(H,H2) # they should be different graphs assert_equal(sorted(H.nodes()),sorted(G.nodes())) assert_equal(sorted(H.edges()),sorted(G.edges())) os.close(fd) os.unlink(fname) def test_adjlist_integers(self): (fd,fname)=tempfile.mkstemp() G=nx.convert_node_labels_to_integers(self.G) nx.write_adjlist(G,fname) H=nx.read_adjlist(fname,nodetype=int) H2=nx.read_adjlist(fname,nodetype=int) assert_equal(sorted(H.nodes()),sorted(G.nodes())) assert_equal(sorted(H.edges()),sorted(G.edges())) os.close(fd) os.unlink(fname) def test_adjlist_digraph(self): G=self.DG (fd,fname)=tempfile.mkstemp() nx.write_adjlist(G,fname) H=nx.read_adjlist(fname,create_using=nx.DiGraph()) H2=nx.read_adjlist(fname,create_using=nx.DiGraph()) assert_not_equal(H,H2) # they should be different graphs assert_equal(sorted(H.nodes()),sorted(G.nodes())) assert_equal(sorted(H.edges()),sorted(G.edges())) os.close(fd) os.unlink(fname) def test_adjlist_multigraph(self): G=self.XG (fd,fname)=tempfile.mkstemp() nx.write_adjlist(G,fname) H=nx.read_adjlist(fname,nodetype=int, create_using=nx.MultiGraph()) H2=nx.read_adjlist(fname,nodetype=int, create_using=nx.MultiGraph()) assert_not_equal(H,H2) # they should be different graphs assert_equal(sorted(H.nodes()),sorted(G.nodes())) assert_equal(sorted(H.edges()),sorted(G.edges())) os.close(fd) os.unlink(fname) def test_adjlist_multidigraph(self): G=self.XDG (fd,fname)=tempfile.mkstemp() nx.write_adjlist(G,fname) H=nx.read_adjlist(fname,nodetype=int, create_using=nx.MultiDiGraph()) H2=nx.read_adjlist(fname,nodetype=int, create_using=nx.MultiDiGraph()) assert_not_equal(H,H2) # they should be different graphs assert_equal(sorted(H.nodes()),sorted(G.nodes())) assert_equal(sorted(H.edges()),sorted(G.edges())) os.close(fd) os.unlink(fname) class TestMultilineAdjlist(): def setUp(self): self.G=nx.Graph(name="test") e=[('a','b'),('b','c'),('c','d'),('d','e'),('e','f'),('a','f')] self.G.add_edges_from(e) self.G.add_node('g') self.DG=nx.DiGraph(self.G) self.DG.remove_edge('b','a') self.DG.remove_edge('b','c') self.XG=nx.MultiGraph() self.XG.add_weighted_edges_from([(1,2,5),(1,2,5),(1,2,1),(3,3,42)]) self. XDG=nx.MultiDiGraph(self.XG) def test_multiline_adjlist_graph(self): G=self.G (fd,fname)=tempfile.mkstemp() nx.write_multiline_adjlist(G,fname) H=nx.read_multiline_adjlist(fname) H2=nx.read_multiline_adjlist(fname) assert_not_equal(H,H2) # they should be different graphs assert_equal(sorted(H.nodes()),sorted(G.nodes())) assert_equal(sorted(H.edges()),sorted(G.edges())) os.close(fd) os.unlink(fname) def test_multiline_adjlist_digraph(self): G=self.DG (fd,fname)=tempfile.mkstemp() nx.write_multiline_adjlist(G,fname) H=nx.read_multiline_adjlist(fname,create_using=nx.DiGraph()) H2=nx.read_multiline_adjlist(fname,create_using=nx.DiGraph()) assert_not_equal(H,H2) # they should be different graphs assert_equal(sorted(H.nodes()),sorted(G.nodes())) assert_equal(sorted(H.edges()),sorted(G.edges())) os.close(fd) os.unlink(fname) def test_multiline_adjlist_integers(self): (fd,fname)=tempfile.mkstemp() G=nx.convert_node_labels_to_integers(self.G) nx.write_multiline_adjlist(G,fname) H=nx.read_multiline_adjlist(fname,nodetype=int) H2=nx.read_multiline_adjlist(fname,nodetype=int) assert_equal(sorted(H.nodes()),sorted(G.nodes())) assert_equal(sorted(H.edges()),sorted(G.edges())) os.close(fd) os.unlink(fname) def test_multiline_adjlist_digraph(self): G=self.DG (fd,fname)=tempfile.mkstemp() nx.write_multiline_adjlist(G,fname) H=nx.read_multiline_adjlist(fname,create_using=nx.DiGraph()) H2=nx.read_multiline_adjlist(fname,create_using=nx.DiGraph()) assert_not_equal(H,H2) # they should be different graphs assert_equal(sorted(H.nodes()),sorted(G.nodes())) assert_equal(sorted(H.edges()),sorted(G.edges())) os.close(fd) os.unlink(fname) def test_multiline_adjlist_multigraph(self): G=self.XG (fd,fname)=tempfile.mkstemp() nx.write_multiline_adjlist(G,fname) H=nx.read_multiline_adjlist(fname,nodetype=int, create_using=nx.MultiGraph()) H2=nx.read_multiline_adjlist(fname,nodetype=int, create_using=nx.MultiGraph()) assert_not_equal(H,H2) # they should be different graphs assert_equal(sorted(H.nodes()),sorted(G.nodes())) assert_equal(sorted(H.edges()),sorted(G.edges())) os.close(fd) os.unlink(fname) def test_multiline_adjlist_multidigraph(self): G=self.XDG (fd,fname)=tempfile.mkstemp() nx.write_multiline_adjlist(G,fname) H=nx.read_multiline_adjlist(fname,nodetype=int, create_using=nx.MultiDiGraph()) H2=nx.read_multiline_adjlist(fname,nodetype=int, create_using=nx.MultiDiGraph()) assert_not_equal(H,H2) # they should be different graphs assert_equal(sorted(H.nodes()),sorted(G.nodes())) assert_equal(sorted(H.edges()),sorted(G.edges())) os.close(fd) os.unlink(fname)