What is Python's unittest framework?

What is Python's unittest framework?

Python's unittest framework is a built-in module that provides tools for testing your code. It allows you to create test cases, test suites, and run tests to ensure your code behaves as expected.

How do I write a simple test case using unittest?

To write a simple test case, you can create a class that inherits from unittest.TestCase and define methods that start with test_. Here's a quick example:

import unittest

def add(a, b):
    return a + b

class TestAddFunction(unittest.TestCase):
    def test_add(self):
        self.assertEqual(add(1, 2), 3)

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

What are some common assertions used in unittest?

Some common assertions in unittest include:

• assertEqual(a, b): Check if a and b are equal.
• assertNotEqual(a, b): Check if a and b are not equal.
• assertTrue(x): Check if x is True.
• assertFalse(x): Check if x is False.
• assertRaises(ErrorType): Check if a specific error is raised.

Can I run unittest from the command line?

Yes, you can run unittest from the command line by executing your test script. If your script is named test_example.py, you can run it using:

python -m unittest test_example.py