kotlin-testing

Implement Kotlin testing patterns with Kotest, MockK, and Kover coverage.

Updated Nov 19, 2025
One-click install
npx skills add https://github.com/Sake-Team/SmartSake --skill kotlin-testing-sake-team
Or copy as Structured Prompt for Agent
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Skill: kotlin-testing
Source: https://github.com/Sake-Team/SmartSake/tree/main/backup/skills/kotlin-testing
Command: npx skills add https://github.com/Sake-Team/SmartSake --skill kotlin-testing-sake-team

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires kotest, mockk, kotlinx.coroutines, kover, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill unit provides guidance on implementing Kotlin testing patterns with Kotest, MockK, and other tools, helping developers write reliable, maintainable tests.

Core Features & Use Cases

  • Testing Patterns: Offers Kotlin testing patterns, including TDD methodology with Kotest, MockK, coroutine testing, property-based testing, and Kover coverage.
  • When to Use: Ideal for new Kotlin functions or classes, adding test coverage, implementing property-based tests, and configuring Kover for code coverage.
  • How It Works: A step-by-step guide through identifying target code, writing specs, mocking dependencies, running tests, implementing code, refactoring, and checking coverage.

Quick Start

Start by identifying the function, class, or module you want to test. Then, write a Kotest spec and mock dependencies using MockK.

Frequently Asked Questions about kotlin-testing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I write Kotlin tests using Kotest and MockK?

To write Kotlin tests, identify your target code, write a Kotest spec for the test structure, mock dependencies using MockK, and run the suite. This pattern guides you through TDD methodology, spec creation, and mocking.

What is property-based testing in Kotlin and when should I use it?

Property-based testing in Kotlin generates random test inputs to validate code properties across a wide range of values. Use this approach with Kotest to find edge cases that traditional example-based tests might miss.

How do I test Kotlin coroutines with MockK?

Testing Kotlin coroutines with MockK involves using kotlinx.coroutines test utilities alongside MockK to suspend functions. This pattern handles asynchronous code verification and mocking within coroutine test scopes.

How do I configure Kover for Kotlin code coverage?

Configuring Kover for Kotlin code coverage involves integrating the Kover plugin into your build to measure test execution. This pattern shows how to check coverage metrics after running your Kotest and MockK suites.

Does this TDD methodology work with existing Kotlin classes?

Yes, the TDD methodology works for both new Kotlin functions and existing classes. The pattern guides you through identifying target code, writing specs, mocking dependencies, implementing changes, refactoring, and checking coverage.