Getting Python's unittest results in a tearDown() method

Question

Is it possible to get the results of a test (i.e. whether all assertions have passed) in a tearDown() method? I\'m running Selenium scripts, and I\'d like to do some reporti

Answer 1

If you take a look at the implementation of unittest.TestCase.run, you can see that all test results are collected in the result object (typically a unittest.TestResult instance) passed as argument. No result status is left in the unittest.TestCase object.

So there isn't much you can do in the unittest.TestCase.tearDown method unless you mercilessly break the elegant decoupling of test cases and test results with something like this:

import unittest

class MyTest(unittest.TestCase):

    currentResult = None # holds last result object passed to run method

    def setUp(self):
        pass

    def tearDown(self):
        ok = self.currentResult.wasSuccessful()
        errors = self.currentResult.errors
        failures = self.currentResult.failures
        print ' All tests passed so far!' if ok else \
                ' %d errors and %d failures so far' % \
                (len(errors), len(failures))

    def run(self, result=None):
        self.currentResult = result # remember result for use in tearDown
        unittest.TestCase.run(self, result) # call superclass run method

    def test_onePlusOneEqualsTwo(self):
        self.assertTrue(1 + 1 == 2) # succeeds

    def test_onePlusOneEqualsThree(self):
        self.assertTrue(1 + 1 == 3) # fails

    def test_onePlusNoneIsNone(self):
        self.assertTrue(1 + None is None) # raises TypeError

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

EDIT: This works for Python 2.6 - 3.3, (modified for new Python bellow).