def test_modifiers(self):
v = [g0, g12, g13]
gs = GraphSet(v)
gs.add(g1)
self.assertTrue(g1 in gs)
gs.remove(g1)
self.assertTrue(g1 not in gs)
self.assertRaises(KeyError, gs.remove, g1)
gs.add(g0)
gs.discard(g0)
self.assertTrue(g0 not in gs)
gs.discard(g0) # no exception raised
gs = GraphSet(v)
gs.add(e2)
self.assertEqual(gs, GraphSet([g12, g123, g2]))
gs = GraphSet(v)
gs.remove(e2)
self.assertEqual(gs, GraphSet([g0, g1, g13]))
self.assertRaises(KeyError, gs.remove, e4)
gs = GraphSet(v)
gs.discard(e2)
self.assertEqual(gs, GraphSet([g0, g1, g13]))
gs.discard(e4) # no exception raised
v = [g1, g12, g13]
gs = GraphSet(v)
g = gs.pop()
self.assertTrue(isinstance(g, list))
self.assertTrue(g not in gs)
self.assertEqual(gs | GraphSet([g]), GraphSet(v))
self.assertTrue(gs)
gs.clear()
self.assertFalse(gs)
self.assertRaises(KeyError, gs.pop)
self.assertRaises(KeyError, gs.add, [(1,4)])
self.assertRaises(KeyError, gs.remove, [(1,4)])
self.assertRaises(KeyError, gs.discard, [(1,4)])
self.assertRaises(KeyError, gs.add, (1,4))
self.assertRaises(KeyError, gs.remove, (1,4))
self.assertRaises(KeyError, gs.discard, (1,4))
u = [g0, g1, g12, g123, g1234, g134, g14, g4]
gs = GraphSet(u)
gs.flip(e1)
self.assertEqual(gs, GraphSet([g0, g1, g14, g2, g23, g234, g34, g4]))
def test_modifiers(self):
v = [g0, g12, g13]
gs = GraphSet(v)
gs.add(g1)
self.assertTrue(g1 in gs)
gs.remove(g1)
self.assertTrue(g1 not in gs)
self.assertRaises(KeyError, gs.remove, g1)
gs.add(g0)
gs.discard(g0)
self.assertTrue(g0 not in gs)
gs.discard(g0) # no exception raised
gs = GraphSet(v)
gs.add(e2)
self.assertEqual(gs, GraphSet([g12, g123, g2]))
gs = GraphSet(v)
gs.remove(e2)
self.assertEqual(gs, GraphSet([g0, g1, g13]))
self.assertRaises(KeyError, gs.remove, e4)
gs = GraphSet(v)
gs.discard(e2)
self.assertEqual(gs, GraphSet([g0, g1, g13]))
gs.discard(e4) # no exception raised
v = [g1, g12, g13]
gs = GraphSet(v)
g = gs.pop()
self.assertTrue(isinstance(g, list))
self.assertTrue(g not in gs)
self.assertEqual(gs | GraphSet([g]), GraphSet(v))
self.assertTrue(gs)
gs.clear()
self.assertFalse(gs)
self.assertRaises(KeyError, gs.pop)
self.assertRaises(KeyError, gs.add, [(1, 4)])
self.assertRaises(KeyError, gs.remove, [(1, 4)])
self.assertRaises(KeyError, gs.discard, [(1, 4)])
self.assertRaises(KeyError, gs.add, (1, 4))
self.assertRaises(KeyError, gs.remove, (1, 4))
self.assertRaises(KeyError, gs.discard, (1, 4))
u = [g0, g1, g12, g123, g1234, g134, g14, g4]
gs = GraphSet(u)
gs.flip(e1)
self.assertEqual(gs, GraphSet([g0, g1, g14, g2, g23, g234, g34, g4]))
