Create unittest_usage.py

Author: feiskyer

unittest_usage.py

@@ -0,0 +1,91 @@
+"""
+    Python unittest tips:
+        Method                      Checks that	            New in
+        assertEqual(a, b)	        a == b
+        assertNotEqual(a, b)	    a != b
+        assertTrue(x)	            bool(x) is True
+        assertFalse(x)	            bool(x) is False
+        assertIs(a, b)	            a is b	                2.7
+        assertIsNot(a, b)	        a is not b	            2.7
+        assertIsNone(x)	            x is None	            2.7
+        assertIsNotNone(x)	        x is not None	        2.7
+        assertIn(a, b)	            a in b	                2.7
+        assertNotIn(a, b)	        a not in b	            2.7
+        assertIsInstance(a, b)	    isinstance(a, b)	    2.7
+        assertNotIsInstance(a, b)	not isinstance(a, b)	2.7
+        assertRaises(exc, fun, *args, **kwds)
+        assertRaisesRegexp(exc, re, fun, *args, **kwds)
+        assertAlmostEqual(a, b)
+        assertNotAlmostEqual(a, b)
+        assertGreater(a, b)
+        assertGreaterEqual(a, b)
+        assertLess(a, b)
+        assertLessEqual(a, b)
+        assertRegexpMatches(s, re)
+        assertNotRegexpMatches(s, re)
+        assertItemsEqual(a, b)
+        assertDictContainsSubset(a, b)
+        assertMultiLineEqual(a, b)
+        assertSequenceEqual(a, b)
+        assertListEqual(a, b)
+        assertTupleEqual(a, b)
+        assertSetEqual(a, b)
+        assertDictEqual(a, b)
+"""
+import random
+import unittest
+import sys
+
+__version__ = "3.4.2"
+
+class TestSequenceFunctions(unittest.TestCase):
+    """
+       Basic example of unittest from http://docs.python.org/2/library/unittest.html
+    """
+
+    def setUp(self):
+        self.seq = range(10)
+
+    def tearDown(self):
+        self.seq = None
+
+    def test_shuffle(self):
+        # make sure the shuffled sequence does not lose any elements
+        random.shuffle(self.seq)
+        self.seq.sort()
+        self.assertEqual(self.seq, range(10))
+
+        # should raise an exception for an immutable sequence
+        self.assertRaises(TypeError, random.shuffle, (1, 2, 3))
+
+    def test_choice(self):
+        element = random.choice(self.seq)
+        self.assertTrue(element in self.seq)
+
+    def test_sample(self):
+        with self.assertRaises(ValueError):
+            random.sample(self.seq, 20)
+        for element in random.sample(self.seq, 5):
+            self.assertTrue(element in self.seq)
+
+    # Skipping tests
+    @unittest.skip("demonstrating skipping")
+    def test_nothing(self):
+        self.fail("shouldn't happen")
+
+    # Skipping test on some conditions
+    @unittest.skipIf(__version__ < (1, 3), "feature not supported in this library version")
+    def test_format(self):
+        # Tests that work for only a certain version of the library.
+        pass
+
+    # Skipping test on non-windows systems
+    @unittest.skipUnless(sys.platform.startswith("win"), "requires Windows")
+    def test_windows_support(self):
+        # windows specific testing code
+        pass
+
+if __name__ == '__main__':
+    unittest.main()
+    #suite = unittest.TestLoader().loadTestsFromTestCase(TestSequenceFunctions)
+    #unittest.TextTestRunner(verbosity=2).run(suite)