org.eclipse.gemini.blueprint.test.internal.util.ManifestUtilsTest.java Source code

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/******************************************************************************
 * Copyright (c) 2006, 2010 VMware Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Apache License v2.0 which accompanies this distribution. 
 * The Eclipse Public License is available at 
 * http://www.eclipse.org/legal/epl-v10.html and the Apache License v2.0
 * is available at http://www.opensource.org/licenses/apache2.0.php.
 * You may elect to redistribute this code under either of these licenses. 
 * 
 * Contributors:
 *   VMware Inc.
 *****************************************************************************/

package org.eclipse.gemini.blueprint.test.internal.util;

import java.util.jar.Attributes;
import java.util.jar.JarInputStream;
import java.util.jar.JarOutputStream;
import java.util.jar.Manifest;

import junit.framework.TestCase;

import org.eclipse.gemini.blueprint.test.internal.util.jar.JarUtils;
import org.eclipse.gemini.blueprint.test.internal.util.jar.ManifestUtils;
import org.eclipse.gemini.blueprint.test.internal.util.jar.storage.MemoryStorage;
import org.eclipse.gemini.blueprint.test.internal.util.jar.storage.Storage;
import org.osgi.framework.Constants;
import org.springframework.core.io.Resource;
import org.springframework.util.ObjectUtils;
import org.springframework.util.StringUtils;

/**
 * 
 * @author Costin Leau
 */
public class ManifestUtilsTest extends TestCase {

    private Storage storage;

    private JarInputStream in;

    protected void setUp() throws Exception {
        storage = new MemoryStorage();
    }

    protected void tearDown() throws Exception {
        storage.dispose();
        IOUtils.closeStream(in);
    }

    public void testEmptyManifest() throws Exception {
        Manifest mf = new Manifest();
        mf.getMainAttributes().putValue("foo", "bar");
        createJar(mf);
        in = new JarInputStream(storage.getInputStream());
        assertEquals(mf, in.getManifest());
    }

    public void testJarUtilsReadResource() throws Exception {
        Manifest mf = new Manifest();
        mf.getMainAttributes().putValue("foo", "bar");
        createJar(mf);
        assertEquals(mf, JarUtils.getManifest(storage.getResource()));
    }

    public void testExportEntries() throws Exception {
        Manifest mf = new Manifest();
        Attributes attrs = mf.getMainAttributes();
        String[] packages = new String[] { "foo.bar; version:=1", "bar.foo", "hop.trop" };
        attrs.putValue(Constants.EXPORT_PACKAGE, StringUtils.arrayToCommaDelimitedString(packages));
        createJar(mf);
        String[] entries = ManifestUtils
                .determineImportPackages(new Resource[] { storage.getResource(), storage.getResource() });
        assertEquals(3, entries.length);
        ObjectUtils.nullSafeEquals(packages, entries);
    }

    private void createJar(Manifest mf) throws Exception {
        mf.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, "1.0");
        JarOutputStream out = new JarOutputStream(storage.getOutputStream(), mf);
        out.flush();
        out.close();
    }
}