kotlin-testing

Teach Kotlin testing patterns with Kotest, MockK, and TDD.

Updated Apr 4, 2026
One-click install
npx skills add https://github.com/mitul-bhatia/Vibes --skill kotlin-testing-mitul-bhatia
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: kotlin-testing
Source: https://github.com/mitul-bhatia/Vibes/tree/main/.github/skills/kotlin-testing
Command: npx skills add https://github.com/mitul-bhatia/Vibes --skill kotlin-testing-mitul-bhatia

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Kotlin testing patterns help developers write reliable, maintainable tests in Kotlin, leveraging Kotest, MockK, coroutine testing, property-based testing, and Kover, all within a TDD workflow.

Core Features & Use Cases

  • Provide guidance for writing Kotest specs (StringSpec, FunSpec, BehaviorSpec, DescribeSpec) and using MockK for mocking.
  • Demonstrate end-to-end TDD workflow: RED/GREEN/REFACTOR with practical Kotlin examples and coverage considerations.
  • Show how to configure and verify Kover code coverage in Kotlin projects, along with best practices for test organization and fixtures.

Quick Start

Run a small Kotlin test suite demonstrating Kotest specs, MockK mocks, and a simple TDD cycle.

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 with Kotest and MockK in a TDD workflow?

Kotlin coroutine testing uses the runTest API to execute suspending code. You structure these tests within Kotest specs and use MockK to mock suspending functions, ensuring reliable verification of asynchronous logic.

What is the best way to organize Kotlin test specs and verify coverage?

Property-based testing in Kotlin generates test inputs automatically to verify edge cases across a wide range of data. You implement this within Kotest specs to validate code properties without writing individual test cases manually.

Does Kotlin coroutine testing work with Kotest and MockK?

To set up Kotest and MockK for Kotlin testing, you need both libraries included in your project dependencies. This configuration provides the foundation for writing Kotest specs, running TDD cycles, and measuring coverage with Kover.

What is the difference between Kotest spec styles like StringSpec and BehaviorSpec?

Kotest spec styles differ in syntax and structure. StringSpec offers minimal syntax, while BehaviorSpec uses Given/Then/When blocks for readable tests. Choosing the right style depends on your team's preferred test organization and readability needs.