Testing an Annotation

I found neat ways to test annotations.

Here is some annotation test code using JUnit

public class LongParameterListRefactoringTest {

 @Test
 public void isAnnotationWhenAsked() throws Exception {
  assertTrue(LongParameterListRefactoring.class.isAnnotation());
 }

 @Test
 public void annotationIsAnnotated() throws Exception {
  assertTrue(LongParameterListRefactoring.class.getAnnotations().length > 0);
 }

 @Test
 public void isAnnotatedWithRetentionAnnotation() throws Exception {
  Annotation annotation = LongParameterListRefactoring.class.getAnnotations()[0];
  assertTrue(annotation instanceof Retention);
 }

 @Test
 public void isAnnotatedAsSourceCodeAnnotation() throws Exception {
  Annotation annotation = LongParameterListRefactoring.class.getAnnotations()[0];
  Retention retention = (Retention)annotation;
  assertEquals(RetentionPolicy.SOURCE, retention.value());
 }

}

This code lived at the SeePeople project.

Note: annotationIsAnnotated has since been changed. Can you guess why?