def test_trying_to_reset_unset_param_raises_exception(self):
with self.assertRaises(ParameterNotFoundException):
p = Params()
p.reset_param('key', 'new_value')
def test_reset_param(self):
p = Params()
v = "some_value"
p.add(key=v)
p.reset_param('key', 'new_value')
self.assertEqual(p.get('key'), 'new_value')