Comprehensive Java testing with JUnit 5, Mockito, and integration testing frameworks.
Automate repetitive workflows and reduce manual effort
Example: Generate reports, summarize documents, draft communications
Save 3-5 hours per week on routine tasks
Learn new skills, understand complex topics, get expert guidance
Example: Explain concepts, provide examples, suggest learning resources
Accelerate learning and skill development by 2x
Enhance output quality through reviews, suggestions, and refinements
Example: Review drafts, suggest improvements, catch errors
Improve work quality by 30-40% with less effort
Time estimate: 15-45 minutes depending on use case complexity
Prerequisites
Submit your Claude Code skill and start earning
epx add pluginagentmarketplace/custom-plugin-java --skill java-testingCompatible with
Supported agents
Covers unit testing with JUnit 5 (parameterized tests, lifecycle annotations, extensions), mocking with Mockito (stubbing, verification, BDD style), and fluent assertions with AssertJ
Includes integration testing patterns using Spring Boot Test slices, Testcontainers for database isolation, and MockMvc for API testing
Provides test data builders, TDD/BDD practices, and JaCoCo coverage configuration
AI-first code editor with Composer
Before installing skills in Cursor, ensure your development environment meets these requirements:
node --versionjava-testingExecute the skills CLI command in your project's root directory to begin installation:
epx add pluginagentmarketplace/custom-plugin-java --skill java-testingFetches java-testing from pluginagentmarketplace/custom-plugin-java and configures it for Cursor.
The CLI shows a list of agents. Use arrow keys and space to select Cursor:
Confirm successful installation by checking the skill directory location:
.cursor/skills/java-testing
Restart Cursor to activate java-testing. Access via /java-testingin your agent's command palette.
Learn more:View source on GitHubSkills CLI docsAbout CursorWhat are agent skills?
Steps
Common Pitfalls
✓ Do
✗ Don't
💡 Pro Tips
✓ Use when
Use when skill capabilities match your task, clear ROI on time saved, and you can validate outputs. Best for repetitive tasks, learning, and quality improvement.
✗ Avoid when
Avoid when task requires deep expertise you can't validate, involves sensitive decisions, or when learning process is more valuable than speed of completion.
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I recommend java-testing for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.
Solid pick for teams standardizing on skills: java-testing is focused, and the summary matches what you get after install.
java-testing has been reliable in day-to-day use. Documentation quality is above average for community skills.
java-testing fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
I recommend java-testing for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.
Registry listing for java-testing matched our evaluation — installs cleanly and behaves as described in the markdown.
java-testing is among the better-maintained entries we tried; worth keeping pinned for repeat workflows.
Keeps context tight: java-testing is the kind of skill you can hand to a new teammate without a long onboarding doc.
Useful defaults in java-testing — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.
I recommend java-testing for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.
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