Unittest Module

Python
import unittest
import module_under_test

class Test(unittest.TestCase):

    def test_1(self):
        self.assert*(output, expected_output)

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

TestCase Class

Instances of the TestCase class represent the logical test units in the unittest universe. This class is intended to be used as a base class, with specific tests being implemented by concrete subclasses. This class implements the interface needed by the test runner to allow it to drive the tests, and methods that the test code can use to check for and report various kinds of failure.

Assert Methods

Method	Checks that
`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`
`assertIsNot(a, b)`	`a is not b`
`assertIsNone(x)`	`x is None`
`assertIsNotNone(x)`	`x is not None`
`assertIn(a, b)`	`a in b`
`assertNotIn(a, b)`	`a not in b`
`assertIsInstance(a, b)`	`isinstance(a, b)`
`assertNotIsInstance(a, b)`	`not isinstance(a, b)`

Method	Checks that
`assertRaises(exc, fun, args, *kwds)`	`fun(args, kwds)` raises exc*
`assertRaisesRegex(exc, r, fun, args, *kwds)`	`fun(args, kwds)` raises exc* and the message matches regex `r`
`assertWarns(warn, fun, args, *kwds)`	`fun(args, *kwds)` raises warn
`assertWarnsRegex(warn, r, fun, args, *kwds)`	`fun(args, *kwds)` raises warn and the message matches regex r
`assertLogs(logger, level)`	The with block logs on logger with minimum level

Method	Checks that
`assertAlmostEqual(a, b)`	`round(a-b, 7) == 0`
`assertNotAlmostEqual(a, b)`	`round(a-b, 7) != 0`
`assertGreater(a, b)`	`a > b`
`assertGreaterEqual(a, b)`	`a >= b`
`assertLess(a, b)`	`a < b`
`assertLessEqual(a, b)`	`a <= b`
`assertRegex(s, r)`	`r.search(s)`
`assertNotRegex(s, r)`	`not r.search(s)`
`assertCountEqual(a, b)`	a and b have the same elements in the same number, regardless of their order.

Method	Used to compare
`assertMultiLineEqual(a, b)`	strings
`assertSequenceEqual(a, b)`	sequences
`assertListEqual(a, b)`	lists
`assertTupleEqual(a, b)`	tuples
`assertSetEqual(a, b)`	sets or frozensets
`assertDictEqual(a, b)`	dicts

Method	Checks that
`assertRaises(exc, fun, args, *kwds)`	`fun(args, kwds)` raises exc*
`assertRaisesRegex(exc, r, fun, args, *kwds)`	`fun(args, kwds)` raises exc* and the message matches regex `r`
`assertWarns(warn, fun, args, *kwds)`	`fun(args, *kwds)` raises warn
`assertWarnsRegex(warn, r, fun, args, *kwds)`	`fun(args, *kwds)` raises warn and the message matches regex r
`assertLogs(logger, level)`	The with block logs on logger with minimum level