A Pester test case from the kata, verifying a simple two-roll score.

bowling-game-powershell is the classic Bowling Game kata, implemented in PowerShell with the Pester testing framework. The kata is deliberate practice: build a bowling score calculator one small test at a time.

The goal

Practice test-driven development on familiar ground, in a language where TDD is less common, and keep the whole thing runnable in CI.

What I built

• A Get-Bowling scorecard implementation grown test-first with Pester.
• Test cases covering gutter games, open frames, spares, strikes, and the tenth frame bonus balls.
• A GitHub Actions workflow that runs the Pester suite on Ubuntu.

Why it’s here

Katas are how I keep the fundamentals sharp. This one shows test-driven design, clear naming, and CI discipline applied to a small, complete problem, in a scripting language rather than a typical application stack.

Stack · PowerShell · Pester · GitHub Actions · MIT license

View the code on GitHub

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