Respect composed JUnit test templates

[martinfrancois]

Suggested review order: 15 of 52 (Score: 7)
Review first: openrewrite/rewrite-static-analysis#978

What's changed?

Leaves a method unchanged when an existing annotation is directly or transitively meta-annotated with JUnit's @TestTemplate. Methods without an existing test-template annotation still receive @ParameterizedTest when they use a supported parameter source.

What's your motivation?

Recipe: org.openrewrite.java.testing.junit5.AddParameterizedTestAnnotation.

I found this by running org.openrewrite.java.testing.junit5.AddParameterizedTestAnnotation from org.openrewrite.recipe:rewrite-testing-frameworks:3.42.0 on RepositorySourceResolverFuzzTest.java in Symphony-Trello at a8013f27. I reproduced the same result with the latest released recipe artifact, org.openrewrite.recipe:rewrite-testing-frameworks:3.44.0. The selected target tests still pass, but the recipe adds a redundant JUnit test-template annotation beside Jazzer's existing @FuzzTest.

Before

@MethodSource("labelledRepositorySourceValues")
@FuzzTest(maxDuration = "10s", maxExecutions = 20_000)
void labelledRepositorySourceValueCannotBreakSelectionInvariants(String rawValue) {

Actual after the recipe

@ParameterizedTest
@MethodSource("labelledRepositorySourceValues")
@FuzzTest(maxDuration = "10s", maxExecutions = 20_000)
void labelledRepositorySourceValueCannotBreakSelectionInvariants(String rawValue) {

Expected after the recipe

(unchanged)

@FuzzTest already participates in JUnit through @TestTemplate. Adding another test-template annotation does not improve the method and gives two extensions ownership of the same test declaration.

Confirmed real-world execution

• Project: Symphony-Trello.
• Location: RepositorySourceResolverFuzzTest.java at a8013f27.
• Discovery checkout: martinfrancois/symphony-trello@a8013f27.

Anything in particular you'd like reviewers to focus on?

Please review the use of AnnotationMatcher meta-annotation traversal for Jazzer and repository-defined composed annotations.

Have you considered any alternatives or workarounds?

Special-casing Jazzer would miss other composed JUnit test templates. Replacing @FuzzTest would disable the fuzzing engine, so recognizing the JUnit composition contract is the narrow behavior-preserving rule.

Any additional context

Pre-existing tests changed: None.

• Target commit: martinfrancois/symphony-trello@a8013f27
• Discovery release: org.openrewrite.recipe:rewrite-testing-frameworks:3.42.0
• Latest verification release: org.openrewrite.recipe:rewrite-testing-frameworks:3.44.0
• Second affected file: src/test/java/ch/fmartin/symphony/trello/tracker/TrelloCardReferenceParserFuzzTest.java
• Target verification: the selected transformed tests execute 38 tests successfully; this PR prevents the redundant annotation change
• Focused tests: AddParameterizedTestAnnotationTest

This change was prepared with AI assistance. I reviewed the target execution evidence, implementation, tests, and contribution text.

Checklist

• I've added unit tests to cover both positive and negative cases
• I've read and applied the recipe conventions and best practices
• I've run ./gradlew build locally, and committed any resulting changes to recipes.csv
• I've formatted the lines I changed, without reformatting code I didn't touch