421 frameworks quarkus testing unit tests

Skill jabrena/plinth/skills/421-frameworks-quarkus-testing-unit-tests

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npx -y skills add jabrena/plinth --skill 421-frameworks-quarkus-testing-unit-tests

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Use when you need to write fast unit tests for Quarkus applications — including pure tests with @ExtendWith(MockitoExtension.class), @QuarkusTest with @InjectMock for full CDI mock replacement, @InjectSpy for partial CDI bean mocking, REST Assured for resource-focused tests, @ParameterizedTest with @CsvSource / @MethodSource, QuarkusTestProfile for test-specific configuration overrides, and naming conventions (*Test → Surefire, *IT → Failsafe). For framework-agnostic Java use @131-java-testing-unit-testing. This should trigger for requests such as Add or improve unit tests in a Quarkus project; Reduce slow @QuarkusTest usage with Mockito-first tests; Add @InjectSpy partial mocking or QuarkusTestProfile configuration in Quarkus tests; Convert repeated test methods to @ParameterizedTest with @CsvSource or @MethodSource; Write fast pure unit tests for Quarkus services. Part of Plinth Toolkit

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SKILL.md

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Quarkus Unit Testing

Apply fast testing strategies for Quarkus: Mockito-first, QuarkusTest when CDI wiring matters.

What is covered in this Skill?

Pure JUnit 5 + Mockito without container boot (@ExtendWith(MockitoExtension.class))
@QuarkusTest with @InjectMock for full CDI bean replacement
@InjectSpy for partial mocking — real bean wrapped as spy, specific methods overridden
REST Assured for HTTP-level @QuarkusTest resource tests
@ParameterizedTest with @CsvSource (inline data) and @MethodSource (complex objects)
QuarkusTestProfile and @TestProfile for test-specific configuration overrides
Naming conventions: *Test → Surefire (fast phase), *IT → Failsafe (verify phase)
When to escalate to integration tests (@422)

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

Constraints

Compile before test refactors; verify the full suite after.

MANDATORY: Run ./mvnw compile or mvn compile before applying any change
PREREQUISITE: Project must compile before applying test improvements
SAFETY: If compilation fails, stop immediately
BLOCKING CONDITION: Compilation errors must be resolved by the user before proceeding
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 or improve unit tests in a Quarkus project
Reduce slow @QuarkusTest usage with Mockito-first tests
Add @InjectSpy partial mocking or QuarkusTestProfile configuration in Quarkus tests
Convert repeated test methods to @ParameterizedTest with @CsvSource or @MethodSource
Write fast pure unit tests for Quarkus services

Workflow

Read reference and assess project context

Read references/421-frameworks-quarkus-testing-unit-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/421-frameworks-quarkus-testing-unit-tests.md.