def test_graph_degenerate(self):
g1 = Graph([(0, 1), (0, 2), (2, 1), (0, 3), (3, 4), (4, 5), (5, 1)])
self.assertTrue(g1.is_degenerate())
def test_graph_basic(self):
"""Test 'graph' libraries."""
g1 = Graph([(0, 1), (0, 4), (1, 5), (2, 3), (2, 4), (3, 5), (4, 5)])
self.assertFalse(g1.is_degenerate())
self.assertTrue(g1.is_connected())
self.assertEqual(1, g1.dof())