Micronaut Unit Testing

Apply fast testing strategies for Micronaut: Mockito-first, narrow @MicronautTest when HTTP or DI replacement is required.

What is covered in this Skill?

• Pure JUnit 5 + Mockito without container boot
• @MicronautTest with @MockBean factory methods for collaborators
• HttpClient blocking exchanges against the embedded server
• @Property for deterministic configuration in tests
• @ParameterizedTest with @CsvSource / @MethodSource
• Naming: *Test → Surefire; *IT → Failsafe when configured
• When to escalate to @522

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

Constraints

Compile before test refactors; verify the full suite after.