Android Testing Unit

This handles the unit testing layer for Android apps: reducers, repositories, use cases, and ViewModels. It pushes you toward fast, local JVM tests instead of instrumented ones, with guardrails against test bloat and hard-coded credentials. The workflow scopes risk first, then picks the narrowest verification that catches real regressions. It comes with example commands against two fixture apps (orbittasks-compose and orbittasks-xml) and knows when to hand off to UI testing skills. The anti-patterns section is honest about common mistakes like adding tests without signal or shipping benchmarks no one can reproduce. If you're writing business logic tests for Android and want opinionated guidance on what to mock and where to draw boundaries, this gives you a concrete starting point.