Writing Unit Tests in Python ✅

1. Simple and easy just import the Python 3 built-in library unittest.
2. Wrap up tests in a Class.
3. Use assert methods.

import unittest

class TestSum(unittest.TestCase):

    def test_sum(self):
        self.assertEqual(sum([1, 2, 3]), 6, "Should be 6")

    def test_sum_tuple(self):
        self.assertEqual(sum((1, 2, 2)), 6, "Should be 6")

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

Resources

• Getting Started With Testing in Python
• unittest — Unit testing framework