Kotlin Testing

Covers the full Kotlin testing stack with Kotest spec styles, MockK for mocking, coroutine testing, and Kover coverage configuration. Includes a proper TDD walkthrough showing the RED-GREEN-REFACTOR cycle with a real email validator example, which is rare to see documented this clearly. The spec style comparisons (StringSpec, FunSpec, BehaviorSpec, DescribeSpec) are useful if you're picking a testing DSL for your team. Kotest matchers section gives you the common assertions without digging through docs. This is opinionated toward idiomatic Kotlin testing rather than JUnit, so expect property-based testing patterns and coroutine-aware mocks. The Ktor testApplication section suggests it's aimed at backend services, not Android.

Install to Claude Code

npx -y skills add affaan-m/everything-claude-code --skill kotlin-testing --agent claude-code