Unit Testing/Pytest/Create an assert Test

Create a Python Program

Create the following Python program. Save it as multiply.py

def multiply(x, y):
    result = x * y
    return result

Create a Test Program

Create the following Pytest test program. Save it as test_multiply.py

import multiply

def test_multiply():
    assert multiply.multiply(2, 2) == 4

Test Success

Test the program by running pytest in a terminal or command prompt in the same folder as the two programs above and observe the results.

pytest

Test Failure

Change the multiply source code somehow, such as multiplying by 0 rather than multiplying by y. Test the program by running pytest again and observe the results.

← Install Pytest

Unit Testing/Pytest

Create a unittest Test →