Python Unit Test Dictionary Assert KeyError -


i wasn't sure how create python unittest check if dictionary returned keyerror. thought unit test call dictionary key this:

def test_dict_keyerror_should_appear(self):     my_dict = {'hey': 'world'}     self.assertraises(keyerror, my_dict['some_key'])

however, test error out keyerror instead of asserting keyerror occurred.

to solve used lambda call dictionary key raise error.

def test_dict_keyerror_should_appear(self):     my_dict = {'hey': 'world'}     self.assertraises(keyerror, lambda: my_dict['some_key'])

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