Unit Test Methods

Introduction to unit test methods

The following are some of the methods available in unittest, most of which are self-explanatory.

• assertEqual(a, b)

• assertNotEqual(a, b)

• assertAlmostEqual(a, b) for floating point numbers

• assertAlmostEqual(a, b, places)

• assertTrue(x)

• assertFalse(x)

• assertIs(a, b) tests for identity

• assertIsNot(a, b)

• assertIsNone(x)

• assertIsNotNone(x)

• assertIn(a, b)

• assertNotIn(a, b)

• assertIsInstance(a, b)

• assertNotInstance(a, b)

• assertRaises(exception, function, arguments)

All calls to these methods must be prefixed with self..

Each of these methods has an optional final parameter, which may be any expression. The final parameter is used as a message in the AssertionError to provide any necessary additional information.