import unittest import sys from altgraph.ObjectGraph import ObjectGraph from altgraph.Graph import Graph try: from StringIO import StringIO except ImportError: from io import StringIO class Node (object): def __init__(self, graphident): self.graphident = graphident class SubNode (Node): pass class ArgNode (object): def __init__(self, graphident, *args, **kwds): self.graphident = graphident self.args = args self.kwds = kwds def __repr__(self): return '<ArgNode %s>'%(self.graphident,) class TestObjectGraph (unittest.TestCase): def test_constructor(self): graph = ObjectGraph() self.assertTrue(isinstance(graph, ObjectGraph)) g = Graph() graph = ObjectGraph(g) self.assertTrue(graph.graph is g) self.assertEqual(graph.debug, 0) self.assertEqual(graph.indent, 0) graph = ObjectGraph(debug=5) self.assertEqual(graph.debug, 5) def test_repr(self): graph = ObjectGraph() self.assertEqual(repr(graph), '<ObjectGraph>') def testNodes(self): graph = ObjectGraph() n1 = Node("n1") n2 = Node("n2") n3 = Node("n3") n4 = Node("n4") n1b = Node("n1") self.assertTrue(graph.getIdent(graph) is graph) self.assertTrue(graph.getRawIdent(graph) is graph) graph.addNode(n1) graph.addNode(n2) graph.addNode(n3) self.assertTrue(n1 in graph) self.assertFalse(n4 in graph) self.assertTrue("n1" in graph) self.assertFalse("n4" in graph) self.assertTrue(graph.findNode(n1) is n1) self.assertTrue(graph.findNode(n1b) is n1) self.assertTrue(graph.findNode(n2) is n2) self.assertTrue(graph.findNode(n4) is None) self.assertTrue(graph.findNode("n1") is n1) self.assertTrue(graph.findNode("n2") is n2) self.assertTrue(graph.findNode("n4") is None) self.assertEqual(graph.getRawIdent(n1), "n1") self.assertEqual(graph.getRawIdent(n1b), "n1") self.assertEqual(graph.getRawIdent(n4), "n4") self.assertEqual(graph.getRawIdent("n1"), None) self.assertEqual(graph.getIdent(n1), "n1") self.assertEqual(graph.getIdent(n1b), "n1") self.assertEqual(graph.getIdent(n4), "n4") self.assertEqual(graph.getIdent("n1"), "n1") self.assertTrue(n3 in graph) graph.removeNode(n3) self.assertTrue(n3 not in graph) graph.addNode(n3) self.assertTrue(n3 in graph) n = graph.createNode(SubNode, "n1") self.assertTrue(n is n1) n = graph.createNode(SubNode, "n8") self.assertTrue(isinstance(n, SubNode)) self.assertTrue(n in graph) self.assertTrue(graph.findNode("n8") is n) n = graph.createNode(ArgNode, "args", 1, 2, 3, a='a', b='b') self.assertTrue(isinstance(n, ArgNode)) self.assertTrue(n in graph) self.assertTrue(graph.findNode("args") is n) self.assertEqual(n.args, (1, 2, 3)) self.assertEqual(n.kwds, {'a':'a', 'b':'b'}) def testEdges(self): graph = ObjectGraph() n1 = graph.createNode(ArgNode, "n1", 1) n2 = graph.createNode(ArgNode, "n2", 1) n3 = graph.createNode(ArgNode, "n3", 1) n4 = graph.createNode(ArgNode, "n4", 1) graph.createReference(n1, n2, "n1-n2") graph.createReference("n1", "n3", "n1-n3") graph.createReference("n2", n3) g = graph.graph e = g.edge_by_node("n1", "n2") self.assertTrue(e is not None) self.assertEqual(g.edge_data(e), "n1-n2") e = g.edge_by_node("n1", "n3") self.assertTrue(e is not None) self.assertEqual(g.edge_data(e), "n1-n3") e = g.edge_by_node("n2", "n3") self.assertTrue(e is not None) self.assertEqual(g.edge_data(e), None) e = g.edge_by_node("n1", "n4") self.assertTrue(e is None) graph.removeReference(n1, n2) e = g.edge_by_node("n1", "n2") self.assertTrue(e is None) graph.removeReference("n1", "n3") e = g.edge_by_node("n1", "n3") self.assertTrue(e is None) graph.createReference(n1, n2, "foo") e = g.edge_by_node("n1", "n2") self.assertTrue(e is not None) self.assertEqual(g.edge_data(e), "foo") def test_flatten(self): graph = ObjectGraph() n1 = graph.createNode(ArgNode, "n1", 1) n2 = graph.createNode(ArgNode, "n2", 2) n3 = graph.createNode(ArgNode, "n3", 3) n4 = graph.createNode(ArgNode, "n4", 4) n5 = graph.createNode(ArgNode, "n5", 5) n6 = graph.createNode(ArgNode, "n6", 6) n7 = graph.createNode(ArgNode, "n7", 7) n8 = graph.createNode(ArgNode, "n8", 8) graph.createReference(graph, n1) graph.createReference(graph, n7) graph.createReference(n1, n2) graph.createReference(n1, n4) graph.createReference(n2, n3) graph.createReference(n2, n5) graph.createReference(n5, n6) graph.createReference(n4, n6) graph.createReference(n4, n2) self.assertFalse(isinstance(graph.flatten(), list)) fl = list(graph.flatten()) self.assertTrue(n1 in fl) self.assertTrue(n2 in fl) self.assertTrue(n3 in fl) self.assertTrue(n4 in fl) self.assertTrue(n5 in fl) self.assertTrue(n6 in fl) self.assertTrue(n7 in fl) self.assertFalse(n8 in fl) fl = list(graph.flatten(start=n2)) self.assertFalse(n1 in fl) self.assertTrue(n2 in fl) self.assertTrue(n3 in fl) self.assertFalse(n4 in fl) self.assertTrue(n5 in fl) self.assertTrue(n6 in fl) self.assertFalse(n7 in fl) self.assertFalse(n8 in fl) graph.createReference(n1, n5) fl = list(graph.flatten(lambda n: n.args[0] % 2 != 0)) self.assertTrue(n1 in fl) self.assertFalse(n2 in fl) self.assertFalse(n3 in fl) self.assertFalse(n4 in fl) self.assertTrue(n5 in fl) self.assertFalse(n6 in fl) self.assertTrue(n7 in fl) self.assertFalse(n8 in fl) def test_iter_nodes(self): graph = ObjectGraph() n1 = graph.createNode(ArgNode, "n1", 1) n2 = graph.createNode(ArgNode, "n2", 2) n3 = graph.createNode(ArgNode, "n3", 3) n4 = graph.createNode(ArgNode, "n4", 4) n5 = graph.createNode(ArgNode, "n5", 5) n6 = graph.createNode(ArgNode, "n6", 5) nodes = graph.nodes() if sys.version[0] == '2': self.assertTrue(hasattr(nodes, 'next')) else: self.assertTrue(hasattr(nodes, '__next__')) self.assertTrue(hasattr(nodes, '__iter__')) nodes = list(nodes) self.assertEqual(len(nodes), 6) self.assertTrue(n1 in nodes) self.assertTrue(n2 in nodes) self.assertTrue(n3 in nodes) self.assertTrue(n4 in nodes) self.assertTrue(n5 in nodes) self.assertTrue(n6 in nodes) def test_get_edges(self): graph = ObjectGraph() n1 = graph.createNode(ArgNode, "n1", 1) n2 = graph.createNode(ArgNode, "n2", 2) n3 = graph.createNode(ArgNode, "n3", 3) n4 = graph.createNode(ArgNode, "n4", 4) n5 = graph.createNode(ArgNode, "n5", 5) n6 = graph.createNode(ArgNode, "n6", 5) graph.createReference(n1, n2) graph.createReference(n1, n3) graph.createReference(n3, n1) graph.createReference(n5, n1) graph.createReference(n2, n4) graph.createReference(n2, n5) graph.createReference(n6, n2) outs, ins = graph.get_edges(n1) self.assertFalse(isinstance(outs, list)) self.assertFalse(isinstance(ins, list)) ins = list(ins) outs = list(outs) self.assertTrue(n1 not in outs) self.assertTrue(n2 in outs) self.assertTrue(n3 in outs) self.assertTrue(n4 not in outs) self.assertTrue(n5 not in outs) self.assertTrue(n6 not in outs) self.assertTrue(n1 not in ins) self.assertTrue(n2 not in ins) self.assertTrue(n3 in ins) self.assertTrue(n4 not in ins) self.assertTrue(n5 in ins) self.assertTrue(n6 not in ins) def test_filterStack(self): graph = ObjectGraph() n1 = graph.createNode(ArgNode, "n1", 0) n11 = graph.createNode(ArgNode, "n1.1", 1) n12 = graph.createNode(ArgNode, "n1.2", 0) n111 = graph.createNode(ArgNode, "n1.1.1", 0) n112 = graph.createNode(ArgNode, "n1.1.2",2) n2 = graph.createNode(ArgNode, "n2", 0) n3 = graph.createNode(ArgNode, "n2", 0) graph.createReference(None, n1) graph.createReference(None, n2) graph.createReference(n1, n11) graph.createReference(n1, n12) graph.createReference(n11, n111) graph.createReference(n11, n112) self.assertTrue(n1 in graph) self.assertTrue(n2 in graph) self.assertTrue(n11 in graph) self.assertTrue(n12 in graph) self.assertTrue(n111 in graph) self.assertTrue(n112 in graph) self.assertTrue(n2 in graph) self.assertTrue(n3 in graph) visited, removes, orphans = graph.filterStack( [lambda n: n.args[0] != 1, lambda n: n.args[0] != 2]) self.assertEqual(visited, 6) self.assertEqual(removes, 2) self.assertEqual(orphans, 1) e = graph.graph.edge_by_node(n1.graphident, n111.graphident) self.assertEqual(graph.graph.edge_data(e), "orphan") self.assertTrue(n1 in graph) self.assertTrue(n2 in graph) self.assertTrue(n11 not in graph) self.assertTrue(n12 in graph) self.assertTrue(n111 in graph) self.assertTrue(n112 not in graph) self.assertTrue(n2 in graph) self.assertTrue(n3 in graph) class TestObjectGraphIO (unittest.TestCase): def setUp(self): self._stdout = sys.stdout def tearDown(self): sys.stdout = self._stdout def test_msg(self): graph = ObjectGraph() sys.stdout = fp = StringIO() graph.msg(0, "foo") self.assertEqual(fp.getvalue(), "foo \n") sys.stdout = fp = StringIO() graph.msg(5, "foo") self.assertEqual(fp.getvalue(), "") sys.stdout = fp = StringIO() graph.debug = 10 graph.msg(5, "foo") self.assertEqual(fp.getvalue(), "foo \n") sys.stdout = fp = StringIO() graph.msg(0, "foo", 1, "a") self.assertEqual(fp.getvalue(), "foo 1 'a'\n") sys.stdout = fp = StringIO() graph.msgin(0, "hello", "world") graph.msg(0, "test me") graph.msgout(0, "bye bye") self.assertEqual(fp.getvalue(), "hello 'world'\n test me \nbye bye \n") if __name__ == "__main__": # pragma: no cover unittest.main()