jvm-testing

What problem does it solve?

Testing on the JVM without established patterns leads to flaky tests and maintenance overhead. This Skill provides guidance and templates for Java/JUnit 5 and Kotlin/Kotest testing, including assertion libraries and test doubles.

Core Features & Use Cases

• JUnit 5 basics for Java tests, including setup, annotations, and best practices.
• Kotest patterns for Kotlin tests and alternative spec styles.
• Mocking with mockk and mockito, and integration testing with Testcontainers for end-to-end scenarios.
• Use Case: write a stable suite for a Java service with an in-memory repo and containerized dependencies.

Quick Start

Adapt the examples to your project and start writing JUnit 5 or Kotest tests immediately.