What are unit testing and assertions?

What are unit testing and assertions?

Unit testing is a software testing method where individual components are tested in isolation. Assertions are conditions that you check during testing to ensure the code behaves as expected.

Why are assertions important in unit testing?

Assertions are crucial because they help verify that the code produces the expected results. If an assertion fails, it indicates a bug in the code.

Can you give me an example of a unit test with assertions?

Sure! In Python, you might use the unittest framework. Here's a simple example:

import unittest

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

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

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