001package org.apache.maven.tools.plugin.util;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements.  See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership.  The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License.  You may obtain a copy of the License at
011 *
012 *   http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied.  See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022import org.junit.Test;
023
024import java.io.UnsupportedEncodingException;
025import java.net.URL;
026import java.net.URLDecoder;
027
028import static org.junit.Assert.assertEquals;
029
030/**
031 * @author jdcasey
032 */
033public class TestUtils
034{
035
036    @Test
037    public void testDirnameFunction_METATEST() throws UnsupportedEncodingException
038    {
039        String classname = getClass().getName().replace( '.', '/' ) + ".class";
040        String basedir = TestUtils.dirname( classname );
041
042        ClassLoader cl = Thread.currentThread().getContextClassLoader();
043        URL resource = cl.getResource( classname );
044
045        assertEquals( URLDecoder.decode( resource.getPath(), "UTF-8" ), basedir + classname );
046    }
047
048    public static String dirname( String file )
049    {
050        ClassLoader cl = Thread.currentThread().getContextClassLoader();
051        URL fileResource = cl.getResource( file );
052
053        String fullPath = fileResource.getPath();
054
055        String path = fullPath.substring( 0, fullPath.length() - file.length() );
056
057        try
058        {
059            /*
060             * FIXME: URL encoding and HTML form encoding are not the same. Use FileUtils.toFile(URL) from plexus-utils
061             * once PLXUTILS-56 is released.
062             */
063            // necessary for JDK 1.5+, where spaces are escaped to %20
064            return URLDecoder.decode( path, "UTF-8" );
065        }
066        catch ( UnsupportedEncodingException e )
067        {
068            throw new Error( "Broken JVM, UTF-8 must be supported", e );
069        }
070    }
071
072}