TypeScript Katas Starter (Bun only)

This repository runs entirely with Bun — no Node/Jest dependencies and no npm install required.

• Write test files in the tests directory (e.g., *.spec.ts).
• Write your kata solutions in the app directory.

Suggested Katas

A list of Made Tech Katas

You can find TDD learning resources on our Learn Tech site.

Prerequisites

• Install Bun: https://bun.com/docs/installation
  • Via script (see the Bun website for latest): curl -fsSL https://bun.sh/install | bash
  • npm (the last npm command you'll ever need!) - npm install -g bun
  • macOS (Homebrew): brew install oven-sh/bun/bun
  • Windows: powershell -c "irm bun.sh/install.ps1 | iex"

Running tests (Bun)

• Run all tests

bun test

• Watch mode

bun test --watch

• Run a single test file (pattern)

bun test subtract

• Coverage

bun test --coverage

Notes

• Bun uses tsconfig.json via bunfig.toml, including the @/* alias → app/*.
• No npm dependencies are required for testing; package.json has no devDependencies.
• Bun's test runner is similar to Jest but has some differences; see https://bun.sh/docs/api/test for details.