def test_hash(self):
a = ContinuousVariable("a")
b = ContinuousVariable("a")
self.assertEqual(hash(a), hash(b))
a._compute_value = lambda x: x
self.assertNotEqual(hash(a), hash(b))
b._compute_value = lambda x: x
self.assertNotEqual(hash(a), hash(b))
a1 = ContinuousVariable("a")
a2 = ContinuousVariable("a")
a._compute_value = Identity(a1)
self.assertNotEqual(hash(a), hash(b))
b._compute_value = Identity(a2)
self.assertEqual(hash(a), hash(b))
at = TimeVariable("a")
b = ContinuousVariable("b")
self.assertEqual(hash(a1), hash(a2))
self.assertNotEqual(hash(a1), hash(b))
self.assertNotEqual(hash(a1), hash(at))
def test_eq_with_compute_value(self):
a = ContinuousVariable("a")
b = ContinuousVariable("a")
self.assertEqual(a, a)
self.assertEqual(a, b)
self.assertIsNot(a, b)
a._compute_value = lambda x: x
self.assertEqual(a, a)
self.assertNotEqual(a, b)
a1 = ContinuousVariable("a")
a2 = ContinuousVariable("a")
c = ContinuousVariable("c")
a._compute_value = Identity(a1)
self.assertEqual(a, a)
self.assertEqual(a, b)
self.assertEqual(hash(a), hash(b))
b._compute_value = a.compute_value
self.assertEqual(a, b)
b._compute_value = Identity(a1)
self.assertEqual(a, b)
b._compute_value = Identity(a2)
self.assertEqual(a, b)
b._compute_value = Identity(c)
self.assertNotEqual(a, b)
b._compute_value = Identity(a2)
a1._compute_value = lambda x: x
self.assertNotEqual(a, b)
a1._compute_value = Identity(c)
self.assertNotEqual(a, b)
a2._compute_value = Identity(c)
self.assertEqual(a, b)
