LaunchKit · 2026

Setup & Installation

npx skills add https://github.com/LambdaTest/agent-skills --skill junit-5-skill
or paste the link and ask your coding assistant to install it
https://github.com/LambdaTest/agent-skills/tree/main/junit-5-skill
View on GitHub

What This Skill Does

Generates JUnit 5 unit and integration tests for Java projects. Covers standard assertions, parameterized tests, Mockito mocking, nested test structures, and lifecycle hooks.

Produces ready-to-run test files with correct imports, annotations, and Mockito wiring instead of copying boilerplate from docs each time.

When to use it

  • Writing parameterized tests with @CsvSource or @MethodSource for multiple input combinations
  • Setting up Mockito mocks and verifying service-layer interactions
  • Structuring related test cases into nested classes with @Nested and @DisplayName
  • Testing exception paths with assertThrows and grouped assertAll blocks
  • Scaffolding a new JUnit 5 test class with lifecycle hooks and correct Maven dependencies