522-frameworks-micronaut-testing-integration-tests - SKILL.md Agent Skill

name: 522-frameworks-micronaut-testing-integration-tests description: Use when you need to write or improve integration tests for Micronaut — @MicronautTest, HttpClient, TestPropertyProvider with Testcontainers, transactional test mode where appropriate, and Maven Surefire/Failsafe splits for Test, Tests, IT, and AT. This should trigger for requests such as Add Micronaut integration tests with Testcontainers; Wire dynamic datasource or broker URLs for @MicronautTest. Part of cursor-rules-java project license: Apache-2.0 metadata: author: Juan Antonio Breña Moral version: 0.16.0

Micronaut Integration Testing

Prove real wiring in Micronaut with containers and HTTP.

What is covered in this Skill?

Scope: contracts and boundaries, not duplicated unit-test logic
TestPropertyProvider + static @Container for JDBC/Kafka properties
HttpClient full-stack HTTP assertions
@MicronautTest(transactional = true) for rollback where supported
Shared containers per class; pinned image tags
Maven Surefire/Failsafe: *Test / *Tests vs *IT / *AT; explicit plugin includes and excludes

Scope: Apply recommendations based on the reference rules and good/bad code examples.

Constraints

Before applying any integration test changes, ensure the project compiles. If compilation fails, stop immediately. After applying improvements, run full verification.

MANDATORY: Run ./mvnw compile or mvn compile before applying any change
PREREQUISITE: Project must compile successfully and pass basic validation checks before any test refactoring
CRITICAL SAFETY: If compilation fails, IMMEDIATELY STOP and DO NOT CONTINUE with any recommendations
BLOCKING CONDITION: Compilation errors must be resolved by the user before proceeding with integration test changes
NO EXCEPTIONS: Under no circumstances should testing recommendations be applied to a project that fails to compile
VERIFY: Run ./mvnw clean verify or mvn clean verify after applying improvements
BEFORE APPLYING: Read the reference for detailed rules and examples

When to use this skill

Add Micronaut integration tests with Testcontainers
Wire dynamic datasource or broker URLs for @MicronautTest

Workflow

Read reference and assess project context

Read references/522-frameworks-micronaut-testing-integration-tests.md and inspect the current project setup before proposing changes.

Gather scope and decide target improvements

Identify requested outcomes, constraints, and the minimum safe set of changes to apply.

Apply framework-aligned changes

Implement or refactor configuration/code following the reference patterns and project conventions.

Run verification and report results

Execute appropriate build/tests and summarize what changed, what was verified, and any follow-up actions.

Reference

For detailed guidance, examples, and constraints, see references/522-frameworks-micronaut-testing-integration-tests.md.