platform/core.startup/test/unit/src/org/netbeans/core/startup/NbInstallerTest9.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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,
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 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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package org.netbeans.core.startup;

import org.netbeans.SetupHid;
import org.netbeans.MockEvents;
import java.io.File;
import java.io.IOException;
import java.util.jar.JarFile;
import java.util.jar.Manifest;
import org.netbeans.ModuleInstaller;
import org.netbeans.Stamps;
import org.openide.modules.Places;
import org.openide.modules.api.PlacesTestUtils;

/** Test the NetBeans module installer implementation.
 * Broken into pieces to ensure each runs in its own VM.
 * @author Jesse Glick
 */
public class NbInstallerTest9 extends SetupHid {

    public NbInstallerTest9(String name) {
        super(name);
    }
    
    /** Test #26786/#28755: manifest caching can be buggy.
     */
    public void testManifestCaching() throws Exception {
        PlacesTestUtils.setUserDirectory(getWorkDir());
        ModuleInstaller inst = new org.netbeans.core.startup.NbInstaller(new MockEvents());
        File littleJar = new File(jars, "little-manifest.jar");
        //inst.loadManifest(littleJar).write(System.out);
        assertEquals(getManifest(littleJar), inst.loadManifest(littleJar));
        File mediumJar = new File(jars, "medium-manifest.jar");
        assertEquals(getManifest(mediumJar), inst.loadManifest(mediumJar));
        File bigJar = new File(jars, "big-manifest.jar");
        assertEquals(getManifest(bigJar), inst.loadManifest(bigJar));
        Stamps.getModulesJARs().shutdown();
        File allManifestsDat = Places.getCacheSubfile("all-manifest.dat");
        assertTrue("File " + allManifestsDat + " exists", allManifestsDat.isFile());
        // Create a new NbInstaller, since otherwise it turns off caching...
        inst = new org.netbeans.core.startup.NbInstaller(new MockEvents());
        assertEquals(getManifest(littleJar), inst.loadManifest(littleJar));
        assertEquals(getManifest(mediumJar), inst.loadManifest(mediumJar));
        assertEquals(getManifest(bigJar), inst.loadManifest(bigJar));
    }
    
    private static Manifest getManifest(File jar) throws IOException {
        JarFile jf = new JarFile(jar);
        try {
            return jf.getManifest();
        } finally {
            jf.close();
        }
    }
    
}