Python unittest.TestCase object has no attribute 'runTest'

Question

For the following code:

import unittest  class Test(unittest.TestCase):     def test1(self):         assert(True == True)  if __name__ == "__main__":     suite = unittest.TestSuite()     suite.addTest(Test())     unittest.TextTestRunner().run(suite) 

Using Python 3 to execute it, the following error is raised:

Traceback (most recent call last):   File "test.py", line 10, in <module>     unittest.TextTestRunner().run(suite)   File "/usr/lib/python3.2/unittest/runner.py", line 168, in run     test(result)   File "/usr/lib/python3.2/unittest/suite.py", line 67, in __call__     return self.run(*args, **kwds)   File "/usr/lib/python3.2/unittest/suite.py", line 105, in run     test(result)   File "/usr/lib/python3.2/unittest/case.py", line 477, in __call__     return self.run(*args, **kwds)   File "/usr/lib/python3.2/unittest/case.py", line 408, in run     testMethod = getattr(self, self._testMethodName) AttributeError: 'Test' object has no attribute 'runTest' 

But unittest.main() works.

Answer 1

You need to invoke a TestLoader:

if __name__ == "__main__":     suite = unittest.defaultTestLoader.loadTestsFromTestCase(Test)     unittest.TextTestRunner().run(suite) 

Answer 2

You have to specify the test method name (test1):

import unittest  class Test(unittest.TestCase):     def test1(self):         assert(True == True)  if __name__ == "__main__":     suite = unittest.TestSuite()     suite.addTest(Test('test1')) # <----------------     unittest.TextTestRunner().run(suite) 

Or, if you want to run all tests in the file, Just calling unittest.main() is enough:

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