def test_graph(self):
dep = FileDoesNotExists('')
self.assertEqual(str, type(dep.extra()))
self.assertEqual(str, type(dep.get_graph_name()))
self.assertEqual(str, type(dep.get_graph_details()))
dep.runned = True
self.assertEqual(str, type(dep.extra()))
self.assertEqual(str, type(dep.get_graph_name()))
self.assertEqual(str, type(dep.get_graph_details()))
output = StringIO.StringIO()
dep.write_graph_detailed(output)
self.assertNotEqual(0, len(output.getvalue().strip()))
