kotlin-testing

Write JUnit 5 tests for Kotlin and Spring Boot applications.

2|1|Updated Dec 26, 2025
One-click install
npx skills add https://github.com/1ambda/dataops-platform --skill kotlin-testing-1ambda
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: kotlin-testing
Source: https://github.com/1ambda/dataops-platform/tree/main/.copilot/skills/kotlin-testing
Command: npx skills add https://github.com/1ambda/dataops-platform --skill kotlin-testing-1ambda

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill simplifies and standardizes the process of writing effective unit and integration tests for Kotlin and Spring Boot applications, reducing debugging time and improving code quality.

Core Features & Use Cases

  • Test Pattern Guidance: Provides clear examples for mocking with MockK, using Spring test slices, and integrating Testcontainers.
  • TDD Workflow: Guides users through the Red-Green-Refactor cycle for Kotlin development.
  • Use Case: When developing a new Spring Boot service in Kotlin, use this Skill to quickly set up robust tests for your controllers, services, and repositories, ensuring reliable functionality from the start.

Quick Start

Use the kotlin-testing skill to generate a basic JUnit 5 test for a Kotlin service class.

Frequently Asked Questions about kotlin-testing

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

FAQPage Schema
How do I set up integration tests for a Kotlin Spring Boot application using Testcontainers?

To set up integration tests for a Kotlin Spring Boot application, you use Testcontainers to manage database instances and Spring test slices to isolate layers. This approach ensures reliable database integration testing without manual environment setup.

What is the best way to mock dependencies in Kotlin JUnit 5 tests?

The best way to mock dependencies in Kotlin JUnit 5 tests is using MockK. MockK provides idiomatic Kotlin mocking capabilities that allow you to stub functions and verify interactions efficiently within your testing workflows.

Can I use Spring test slices to isolate controller and service tests in Kotlin?

Yes, you can use Spring test slices to isolate controller and service tests in Kotlin. Test slices load only the necessary application context components, reducing test execution time and ensuring focused validation of specific Spring Boot application layers.

How do I implement a Test-Driven Development workflow in Kotlin?

To implement Test-Driven Development in Kotlin, you follow the Red-Green-Refactor cycle by writing failing tests first, implementing code to pass them, and then refactoring. This workflow ensures reliable functionality and improved code quality from the start.

Does MockK work with JUnit 5 for testing Spring Boot services?

Yes, MockK works with JUnit 5 for testing Spring Boot services written in Kotlin. Combining these frameworks allows developers to efficiently mock dependencies and validate service logic within a modern JVM testing environment.