def test_count(self):
main = MockMemory()
a = MockMemory(main)
b = MockMemory()
c = MockMemory(a, b)
self.assertEquals(main.count(), 1)
self.assertEquals(a.count(), 2)
self.assertEquals(b.count(), 1)
self.assertEquals(c.count(), 4)
def test_cost(self):
main = MockMemory()
self.assertEqual(main.get_cost(), 0)
def test_simplify(self):
main = MockMemory()
simplified = main.simplify()
self.assertEqual(main, simplified)
def test_path(self):
main = MockMemory()
self.assertEqual(main.get_path_length(), 0)