ClassUtilsTest.java

/*
 * Copyright 2016 Hammock and its contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied.
 *
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package ws.ament.hammock.utils;

import org.junit.Test;

import javax.enterprise.context.ApplicationScoped;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import static org.assertj.core.api.Assertions.assertThat;

public class ClassUtilsTest {

    @Test
    public void shouldResolveAnnotationFromParent() {
        NotInherited ni = ClassUtils.getAnnotation(Sub.class, NotInherited.class);
        assertThat(ni).isNotNull();
    }

    @Test
    public void shouldReturnNullOnMissingAnnotation() {
        ApplicationScoped as = ClassUtils.getAnnotation(Sub.class, ApplicationScoped.class);
        assertThat(as).isNull();
    }

    @NotInherited
    private static class Base {

    }

    private static class Sub extends Base {

    }
    @Retention(RetentionPolicy.RUNTIME)
    @Target(ElementType.TYPE)
    private @interface NotInherited {

    }
}