python testing

1import unittest
2
3class TestStringMethods(unittest.TestCase):
4
5    def test_upper(self):
6        self.assertEqual('foo'.upper(), 'FOO')
7
8    def test_isupper(self):
9        self.assertTrue('FOO'.isupper())
10        self.assertFalse('Foo'.isupper())
11
12    def test_split(self):
13        s = 'hello world'
14        self.assertEqual(s.split(), ['hello', 'world'])
15        # check that s.split fails when the separator is not a string
16        with self.assertRaises(TypeError):
17            s.split(2)
18
19if __name__ == '__main__':
20    unittest.main()
21

1class MyUnitTest(unittest.TestCase):
2    @classmethod
3    def setUpClass(cls):
4        do_something_expensive_for_all_sets_of_tests()
5
6class MyFirstSetOfTests(MyUnitTest):
7    @classmethod
8    def setUpClass(cls):
9        super(MyFirstSetOfTests, cls).setUpClass()
10        do_something_expensive_for_just_these_first_tests()

1'''
2In other words, assertEquals is a function to check if two variables are equal, for purposes of automated testing:
3'''
4
5def assertEquals(var1, var2):
6    if var1 == var2:
7        return True
8    else:
9        return False

1>>> assert sum([1, 2, 3]) == 6, "Should be 6"