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The source code

/*
 *                 Sun Public License Notice
 * 
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 * 
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2004 Sun
 * Microsystems, Inc. All Rights Reserved.
 */

package org.netbeans.modules.editor.java;

import java.io.File;
import java.net.URI;
import org.netbeans.editor.ext.DataAccessor;
import org.netbeans.editor.ext.java.DAFileProvider;
import org.netbeans.editor.ext.java.JCFileProvider;
import org.openide.filesystems.FileObject;
import org.openide.filesystems.FileSystem;
import org.openide.filesystems.LocalFileSystem;
import org.openide.filesystems.Repository;

/**
 * Utilities for accessing input data for tests. It mounts 
 * test/unit/src/org/netbeans/modules/editor/java/data folder
 * as local FS and make its subfolders accessible for you in tests.
 * Call setupData() in test's setUp() and cleanupData() in test's tearDown().
 * Then you can you rest of the utility methods.
 *
 * @autor David Konecny
 */
public final class TestUtils {
    
    private static LocalFileSystem lfs;
    private static FileObject dummySkeleton;

    /** Returns FO for test/unit/src/org/netbeans/modules/editor/java/data */
    public static synchronized FileObject getDataFolder() {
        if (lfs == null) {
            return null;
        }
        return lfs.getRoot();
    }
    
    /** Returns FS with root test/unit/src/org/netbeans/modules/editor/java/data */
    public static synchronized FileSystem getDataFilesystem() {
        return lfs;
    }

    /** Returns folder where parserDB can be generated. */
    public static synchronized FileObject getPdbFolder() {
        return getDataFolder().getFileObject("parserDBs");
    }

    /** Returns empty PDB file. Used from ParserDBQueryImpl. */
    public static synchronized FileObject getDummyPdbFile() {
        return dummySkeleton;
    }
    
    /** Get JCStorage of parserDB for tests. */
    public static synchronized JCStorage getStorage() {
        return JCStorage.getStorage();
    }
    
    public static synchronized void setupData() throws Exception {
        // mount root of the testing data as localFS so that FileUtil.fromFile works
        File f = new File(URI.create(TestUtils.class.getResource("data").toExternalForm()));
        lfs = new LocalFileSystem();
        lfs.setRootDirectory(f);
        Repository.getDefault().addFileSystem(lfs);

        FileObject pdbFolder = getPdbFolder();
        if (pdbFolder == null) {
            pdbFolder = getDataFolder().createFolder("parserDBs");
        }
        
        dummySkeleton = getDataFolder().getFileObject("dummy", JCFileProvider.SKEL_FILE_EXT);
        if (dummySkeleton == null) {
            FileObject skels;
            FileObject bodies;
            try {
                skels = getDataFolder().createData("dummy", JCFileProvider.SKEL_FILE_EXT); //NOI18N
                bodies = getDataFolder().createData("dummy",  JCFileProvider.BODY_FILE_EXT); //NOI18N
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
            
            JCFileProvider fp = new DAFileProvider((DataAccessor) new FileObjectAccessor(skels),
                (DataAccessor) new FileObjectAccessor(bodies));
            fp.reset();
            dummySkeleton = skels;
        }
    }
    
    public static synchronized void cleanupData() throws Exception {
        FileObject pdbFolder = getPdbFolder();
        
        /*
        JCStorageElement elms[] = getStorage().getElements();
        for (int i=0; i
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