ClassesTest.java

/*
 * Copyright 2010-2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * 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://aws.amazon.com/apache2.0
 *
 * This file 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 com.amazonaws.util;

import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;

import org.joda.time.DateTimeZone;
import org.junit.Test;

import java.io.IOException;
import java.util.jar.Attributes;
import java.util.jar.JarFile;
import java.util.jar.Manifest;

public class ClassesTest {
    private static final boolean VERBOSE = false;

    @Test
    public void basics() {
        // super class of ClassesTest is Object
        assertSame(getClass(), Classes.childClassOf(Object.class, this));
        // super class of Object is null
        assertSame(Object.class, Classes.childClassOf(null, this));
        // not reflexive
        assertNull(Classes.childClassOf(ClassesTest.class, this));
    }

    @Test
    public void jarFileOf() throws IOException {
        JarFile jf = Classes.jarFileOf(DateTimeZone.class);
        Manifest mf = jf.getManifest();
        Attributes attrs = mf.getMainAttributes();
        String name = attrs.getValue("Bundle-Name");
        String version = attrs.getValue("Bundle-Version");
        if (VERBOSE) {
            System.out.println(name);
            System.out.println(version);
        }
        assertNotNull(name);
        assertNotNull(version);
    }
}