ClassMembersTest.java 文件源码

@Test(dataProvider = "retentionPolicyTestCase")
public void annotationTest(RetentionPolicy policy) {
    assertEval("import java.lang.annotation.*;");
    String annotationSource =
            "@Retention(RetentionPolicy." + policy.toString() + ")\n" +
            "@interface A {}";
    assertEval(annotationSource);
    String classSource =
            "@A class C {\n" +
            "   @A C() {}\n" +
            "   @A void f() {}\n" +
            "   @A int f;\n" +
            "   @A class Inner {}\n" +
            "}";
    assertEval(classSource);
    String isRuntimeVisible = policy == RetentionPolicy.RUNTIME ? "true" : "false";
    assertEval("C.class.getAnnotationsByType(A.class).length > 0;", isRuntimeVisible);
    assertEval("C.class.getDeclaredConstructor().getAnnotationsByType(A.class).length > 0;", isRuntimeVisible);
    assertEval("C.class.getDeclaredMethod(\"f\").getAnnotationsByType(A.class).length > 0;", isRuntimeVisible);
    assertEval("C.class.getDeclaredField(\"f\").getAnnotationsByType(A.class).length > 0;", isRuntimeVisible);
    assertEval("C.Inner.class.getAnnotationsByType(A.class).length > 0;", isRuntimeVisible);
}