Quarkus unit testing

• 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

  )

Constraints

• 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

Reference