You're tasked with testing and fixing four basic arithmetic functions.
But here's the twist:
- ❌ You may not use any test library (no Jest, Mocha, etc.)
- ✅ You must write all tests by hand, directly in this file
- ✅ You are encouraged to invent your own helpers (e.g.
assertEqual,expect, etc.)
Your job is to:
- Write tests that reveal the bugs
- Fix the broken functions
- Improve your test readability as you go
💡 Run your file using: node 01-manual-test.js