def test_model_as_dict(self):
x, y_1, y_2 = variables('x, y_1, y_2')
a, b = parameters('a, b')
model_dict = OrderedDict([(y_1, a * x**2), (y_2, 2 * x * b)])
model = Model(model_dict)
self.assertEqual(id(model[y_1]), id(model_dict[y_1]))
self.assertEqual(id(model[y_2]), id(model_dict[y_2]))
self.assertEqual(len(model), len(model_dict))
self.assertEqual(model.items(), model_dict.items())
self.assertEqual(model.keys(), model_dict.keys())
self.assertEqual(list(model.values()), list(model_dict.values()))
self.assertTrue(y_1 in model)
self.assertFalse(model[y_1] in model)
def test_model_as_dict():
x, y_1, y_2 = variables('x, y_1, y_2')
a, b = parameters('a, b')
model_dict = OrderedDict([(y_1, a * x**2), (y_2, 2 * x * b)])
model = Model(model_dict)
assert model[y_1] is model_dict[y_1]
assert model[y_2] is model_dict[y_2]
assert len(model) == len(model_dict)
assert model.items() == model_dict.items()
assert model.keys() == model_dict.keys()
assert list(model.values()) == list(model_dict.values())
assert y_1 in model
assert not model[y_1] in model
