🧮 Calculator Projects — Python & C++

This repo contains two simple calculator implementations — one in Python and one in C++ — each with their own unit tests and GitHub Actions workflows.

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📁 Project Structure

.
├── cpp-unit-test/
│   ├── calculator.cpp
│   ├── calculator.h
│   ├── test_calculator.cpp
│   ├── catch_amalgamated.hpp / .cpp
│   └── main.cpp
└── python-unit-test/
    ├── calculator.py
    ├── test_calculator.py
    └── main.py

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🚀 Run the Main Programs

🐍 Python

cd python-unit-test
uv sync

uv run main.py

Usage:

• Type an operation (add, subtract, multiply, divide)
• Enter two numbers
• Type exit to quit

Example:

Enter operation: add
Enter first number: 5
Enter second number: 3
Result: 8.0

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🧱 C++

cd cpp-unit-test
g++ -std=c++17 main.cpp calculator.cpp -o calculator_app
./calculator_app

Usage:
Same as Python — type an operation name and numbers interactively.
Handles divide-by-zero errors gracefully.

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🧪 Run Unit Tests

Python Tests

cd python-unit-test
uv sync

pytest -v

Options:

• -v → verbose (shows each test)
• -q → quiet (only summary)
• -x → stop after first failure

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C++ Tests

cd cpp-unit-test
curl -L -o catch_amalgamated.hpp https://github.com/catchorg/Catch2/releases/download/v3.6.0/catch_amalgamated.hpp
curl -L -o catch_amalgamated.cpp  https://github.com/catchorg/Catch2/releases/download/v3.6.0/catch_amalgamated.cpp

g++ -std=c++17 catch_amalgamated.cpp test_calculator.cpp calculator.cpp -o tests
./tests -s -v high

Options:

• -s → show std::cout output
• -v high → high verbosity (shows each assertion and section)
• --list-reporters → list available reporters (e.g., console, xml)

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⚙️ CI Automation

Both projects include GitHub Actions workflows that:

• Automatically build and run tests on every push and pull request
• Use Python 3.12 and GCC 17 respectively
• Fail the workflow if any test fails

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✅ Summary

Project	Run App	Run Tests	Framework
Python	python main.py	pytest -v	pytest
C++	./calculator_app	./tests -s -v high	Catch2 v3