Attribute Error in Python

Question

I'm trying to add a unittest attribute to an object in Python

class Boy:

    def run(self, args):
        print("Hello")

class BoyTest(unittest.TestCase)

    def test(self)
         self.assertEqual('2' , '2')

def self_test():
    suite = unittest.TestSuite()
    loader = unittest.TestLoader()
    suite.addTest(loader.loadTestsFromTestCase(Boy.BoyTest))
    return suite

However, I keep getting "AttributeError: class Boy has no attribute 'BoyTest'" whenever I call self_test(). Why?

Answer 1

As the argument of loadTestsFromTestCase, you're trying to access Boy.BoyTest, i.e., the BoyTest attribute of class object Boy, which just doesn't exist, as the error msg is telling you. Why don't you just use BoyTest there instead?

Answer 2

As Alex has stated you are trying to use BoyTest as an attibute of Boy:

class Boy:

    def run(self, args):
        print("Hello")

class BoyTest(unittest.TestCase)

    def test(self)
         self.assertEqual('2' , '2')

def self_test():
    suite = unittest.TestSuite()
    loader = unittest.TestLoader()
    suite.addTest(loader.loadTestsFromTestCase(BoyTest))
    return suite

Note the change:

suite.addTest(loader.loadTestsFromTestCase(Boy.BoyTest))

to:

suite.addTest(loader.loadTestsFromTestCase(BoyTest))

Does this solve your problem?