QA Testing with Python – Calculator Functions

What is being tested

This script performs basic manual QA tests on a set of calculator functions: addition, subtraction, and division. It checks whether each function returns the correct result and handles edge cases, such as division by zero.

The goal is to simulate how a QA tester would validate core logic in a mobile or web-based calculator app using Python's built-in unittest framework.

▶️ How to run the script

1. Make sure you have Python installed (version 3.x).
2. Save the script as test_calculator.py.
3. Open your terminal or command prompt.
4. Navigate to the folder where the script is saved.
5. Run the following command:

python test_calculator.py