Python unit test with base and sub class

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Do not use multiple inheritance, it will bite you later.

Instead you can just move your base class into the separate module or wrap it with the blank class:

class BaseTestCases:

    class BaseTest(unittest.TestCase):

        def testCommon(self):
            print('Calling BaseTest:testCommon')
            value = 5
            self.assertEqual(value, 5)


class SubTest1(BaseTestCases.BaseTest):

    def testSub1(self):
        print('Calling SubTest1:testSub1')
        sub = 3
        self.assertEqual(sub, 3)


class SubTest2(BaseTestCases.BaseTest):

    def testSub2(self):
        print('Calling SubTest2:testSub2')
        sub = 4
        self.assertEqual(sub, 4)

if __name__ == '__main__':
    unittest.main()

The output:

Calling BaseTest:testCommon
.Calling SubTest1:testSub1
.Calling BaseTest:testCommon
.Calling SubTest2:testSub2
.
----------------------------------------------------------------------
Ran 4 tests in 0.001s

OK

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