132-java-testing-integration-testing
Java Integration testing guidelines
Set up robust integration-test infrastructure for Java services using WireMock to stub outbound HTTP dependencies.
What is covered in this Skill?
- Infrastructure topology detection: scanning imports for
HttpClient,feign.*,retrofit2.*,RestTemplate - Abstract
BaseIntegrationTestbase class WireMockExtensionwith@RegisterExtension, dynamic port allocation (dynamicPort())usingFilesUnderClasspath(wiremock),@BeforeAll+System.setProperty()for coordinate propagation- WireMock JSON mapping files (
bodyFileNamereferencingwiremock/files/) - Programmatic stub registration via WireMock DSL
- Per-test stub isolation: register stubs inside each test method
- Fault injection: 503 service unavailable, network latency with
withFixedDelay - Request verification via
WIREMOCK.verify wiremock-standaloneMaven dependency (test scope)- Anti-patterns: global
@BeforeAllstubs, Mockito-mocked HTTP clients, hardcoded ports or URLs
Scope: The reference is organized by examples (good/bad code patterns) for each core area. Apply recommendations based on applicable examples.
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