AssertionError "not called" on simple mock in Python
mocking, python
Solution
You are calling the object `self.fake_client.copy`, but test whether another one, `self.fake_client` has been called.
Either call the "correct" object:
self.fake_client("123")
self.fake_client.assert_called_with("123")
or test the `copy`:
self.fake_client.copy("123")
self.fake_client.copy.assert_called_with("123")
Problem
I'm trying to use the Python mock module (downloaded using pip) for the first time. I'm having problems setting an assert, I've narrowed it down to this code: ``` class TestUsingMock(unittest.TestCase): def setUp(self): self.fake_client = mock.Mock() def test_mock(self): self.fake_client.copy = mock.Mock() self.fake_client.copy("123") self.fake_client.assert_called_with("123") if __name__ == "__main__": unittest.main() ``` This is the error I get: ``` F ====================================================================== FAIL: test_mock (__main__.TestVCSDriver) ---------------------------------------------------------------------- Traceback (most recent call last): File "./mock_test.py", line 17, in test_mock self.fake_client.assert_called_with("123") File "/Library/Python/2.6/site-packages/mock.py", line 859, in assert_called_with raise AssertionError('Expected call: %s\nNot called' % (expected,)) AssertionError: Expected call: mock('123') Not called ``` Without the assertion, everything works fine. What am I doing wrong?