import unittest
def fun(x):
return x + 1
class MyTest(unittest.TestCase):
def test(self):
self.assertEqual(fun(3), 4)
def square(x):
"""Squares x.
>>> square(2)
4
>>> square(-2)
4
"""
return x * x
import doctest
doctest.testmod()
TestResults(failed=0, attempted=2)