test: add AnnotationMatcherTest

[jeonyeonbin]

What's changed?

• add AnnotationMatcher Test

Anyone you would like to review specifically?

@timtebeek

Any additional context

• AnnotationMatcher doesn`t work in kotlin #466

[timtebeek]

Thanks for adding this reproducer test @jeonyeonbin ! I'm hoping one of my colleagues who are more active with Kotlin can have a look!

[traceyyoshima]

Hi @jeonyeonbin, thank you for opening a PR as an example! I plan to use @Deprecated since the annotation exists on the classpath for the JVM to use the matcher directly on the CU.

Example:

    @Test
    void matchAnnotation() {
        rewriteRun(
          kotlin(
            """
              @Deprecated("")
              class A
              """, spec -> spec.afterRecipe(cu -> {
                  AtomicBoolean found = new AtomicBoolean(false);
                AnnotationMatcher matcher = new AnnotationMatcher("@kotlin.Deprecated");
                new KotlinIsoVisitor<AtomicBoolean>() {
                    @Override
                    public J.Annotation visitAnnotation(J.Annotation annotation, AtomicBoolean atomicBoolean) {
                        if (matcher.matches(annotation)) {
                            found.set(true);
                        }
                        return super.visitAnnotation(annotation, atomicBoolean);
                    }
                }.visit(cu, found);
                assertThat(found.get()).isTrue();
            })
          )
        );
    }

I plan to implement a holistic fix and have a change in place today.

Closing PR -- we really appreciate you!