Testing

Generated Java applications should be testable from the first commit. Skills and examples should prefer small, deterministic tests over manual-only verification.

Expectations

• Include at least one automated test that fails if the primary endpoint regresses
• Prefer ephemeral ports for embedded servers
• Keep unit tests fast; use integration tests for HTTP and persistence boundaries
• When adding databases, include Testcontainers or an equivalent strategy when practical

Framework notes

Framework	Testing focus
Spring Boot	@SpringBootTest, web slice tests, Testcontainers for persistence
Helidon	HTTP tests against SE/MP endpoints and health checks
Jetty	Start embedded server in tests; assert handler/servlet responses

Prompt patterns

Add integration tests that start the application on an ephemeral port
and verify the primary JSON endpoint and health check.

Add PostgreSQL persistence and Testcontainers to this Spring Boot project.
Keep tests hermetic and document required Docker availability.

Tip

If a skill cannot add meaningful tests yet, document that limitation on the skill page instead of silently omitting them.