---
title: "xianyu (@luxianyu) | Hashnode"
description: "xianyu (@luxianyu) writes on Hashnode. Read their latest articles and follow their work."
url: "https://hashnode.com/@luxianyu"
---

@luxianyu

# xianyu

@luxianyu · Santiago · Joined September 2026

### [How to Test a Pokémon Type Calculator Without Copying Its Own Logic](https://tool-verification-notes.hashnode.dev/how-to-test-a-pok-mon-type-calculator-without-copying-its-own-logic?utm_source=hashnode&utm_medium=feed)

Build an independent oracle and exhaustive tests for a modern main-series Pokémon type calculator without copying production logic.

6 min read · [tool-verification-notes.hashnode.dev](https://tool-verification-notes.hashnode.dev/how-to-test-a-pok-mon-type-calculator-without-copying-its-own-logic?utm_source=hashnode&utm_medium=feed)

[Oct 8](https://hashnode.com/posts/how-to-test-a-pok-mon-type-calculator-without-copying-its-own-logic/6ac81db3bea8e5b85c0c2957)