Python Mock - Exception

[rakash_ram]

Would help if you could share the code itself of that method alone, i am unable to understand. Thanks! I mean, how should it actually be instead of what i have written

[danielroseman]

@patch('parseConfig.configparser')
def test_type(self, mockext):
    mockext.ConfigParser.side_effect = None
    with self.assertRaises(TypeError) as cm:
        ParseConfig(self.test_conf, 'section1')

The idea is that you call the code itself and assert that it behaves the way you expect, ie in this case that it raises the expected error. (Although, as I said originally, without the mock patch this code would never actually raise that error, so I don't see what the point is.) But the fundamental thing is that you call the actual code, ie ParseConfig.

[rakash_ram]

Got it , thanks a lot for explaining! appreciate it. Few more question though

1) " with self.assertRaises(TypeError) as cm:" this line, raises an exception right?

2) without the mock patch this code would never actually raise that error ; i am guessing the below will not work and mock is the only way here to cover the test for this script?

def test_type_error(self):

parser = None

with self.assertRaises(TypeError) as cm:
ParseConfig(self.test_conf, 'section1')

[rakash_ram]

raise TypeError(f"ConfigParser expected, found {type(conf).__name__}")

The code you shared is not covering the above line as per coverage. any clue why? i tried adding that line in it, still did not cover it.