What is Python's unittest module?

What is Python's unittest module?

Python's unittest module is a built-in library for testing your code. It allows you to create test cases and run them 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()

Can I run tests from the command line?

Yes, you can run your tests from the command line by executing the script directly or using the python -m unittest command followed by the name of your test file.

What are some best practices for writing tests?

Some best practices include writing clear and descriptive test names, keeping tests isolated, and testing edge cases to ensure robustness.