UrlUtilsTest.java

package org.codehaus.mojo.javacc;

/*
 * 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, 
 * software distributed under the License 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.
 */

import java.io.File;
import java.net.URL;

import junit.framework.TestCase;

/**
 * Tests <code>UrlUtils</code>.
 * 
 * @author Benjamin Bentmann
 * @version $Id$
 */
public class UrlUtilsTest
    extends TestCase
{

    public void testGetResourceRootFileWin()
        throws Exception
    {
        assertMatch( "/C:/a dir", "file:/C:/a%20dir/org/Foo.class", "org/Foo.class" );
        assertMatch( "/C:/a dir", "file://localhost/C:/a%20dir/org/Foo.class", "org/Foo.class" );
        assertMatch( "/C:/a dir", "file:///C:/a%20dir/org/Foo.class", "org/Foo.class" );
        assertMatch( "/C:/a dir", "file:/C:/a%20dir/org/Foo.class", "/org/Foo.class" );
        assertMatch( "/C:/a dir", "file:/C:/a dir/org/Foo.class", "org/Foo.class" );
    }

    public void testGetResourceRootJarFileWin()
        throws Exception
    {
        assertMatch( "/C:/a dir/t-1.jar", "jar:file:/C:/a%20dir/t-1.jar!/org/Foo.class", "org/Foo.class" );
        assertMatch( "/C:/a dir/t-1.jar", "jar:file://localhost/C:/a%20dir/t-1.jar!/org/Foo.class", "org/Foo.class" );
        assertMatch( "/C:/a dir/t-1.jar", "jar:file:///C:/a%20dir/t-1.jar!/org/Foo.class", "org/Foo.class" );
        assertMatch( "/C:/a dir/t-1.jar", "jar:file:/C:/a%20dir/t-1.jar!/org/Foo.class", "/org/Foo.class" );
        assertMatch( "/C:/a dir/t-1.jar", "jar:file:/C:/a dir/t-1.jar!/org/Foo.class", "org/Foo.class" );
    }

    public void testGetResourceRootFileWinUnc()
        throws Exception
    {
        assertMatch( "//host/a dir", "file:////host/a%20dir/org/Foo.class", "org/Foo.class" );
    }

    public void testGetResourceRootJarFileWinUnc()
        throws Exception
    {
        assertMatch( "//host/a dir/t-1.jar", "jar:file:////host/a%20dir/t-1.jar!/org/Foo.class", "org/Foo.class" );
    }

    public void testGetResourceRootFileUnix()
        throws Exception
    {
        assertMatch( "/home/a dir", "file:/home/a%20dir/org/Foo.class", "org/Foo.class" );
        assertMatch( "/home/a dir", "file://localhost/home/a%20dir/org/Foo.class", "org/Foo.class" );
        assertMatch( "/home/a dir", "file:///home/a%20dir/org/Foo.class", "org/Foo.class" );
        assertMatch( "/home/a dir", "file:/home/a%20dir/org/Foo.class", "/org/Foo.class" );
        assertMatch( "/home/a dir", "file:/home/a dir/org/Foo.class", "org/Foo.class" );
    }

    public void testGetResourceRootJarFileUnix()
        throws Exception
    {
        assertMatch( "/home/a dir/t-1.jar", "jar:file:/home/a%20dir/t-1.jar!/org/Foo.class", "org/Foo.class" );
        assertMatch( "/home/a dir/t-1.jar", "jar:file://localhost/home/a%20dir/t-1.jar!/org/Foo.class", "org/Foo.class" );
        assertMatch( "/home/a dir/t-1.jar", "jar:file:///home/a%20dir/t-1.jar!/org/Foo.class", "org/Foo.class" );
        assertMatch( "/home/a dir/t-1.jar", "jar:file:/home/a%20dir/t-1.jar!/org/Foo.class", "/org/Foo.class" );
        assertMatch( "/home/a dir/t-1.jar", "jar:file:/home/a dir/t-1.jar!/org/Foo.class", "org/Foo.class" );
    }

    public void testGetResourceRootNullSafe()
        throws Exception
    {
        assertNull( UrlUtils.getResourceRoot( null, "" ) );
    }

    public void testGetResourceRootUnknownProtocal()
        throws Exception
    {
        try
        {
            UrlUtils.getResourceRoot( new URL( "http://www.foo.bar/index.html" ), "index.html" );
            fail( "Missing runtime exception" );
        }
        catch ( RuntimeException e )
        {
            assertTrue( true );
        }
    }

    private void assertMatch( String expectedFile, String url, String resource )
        throws Exception
    {
        assertEquals( new File( expectedFile ), UrlUtils.getResourceRoot( new URL( url ), resource ) );
    }

    public void testDecodeUrl()
    {
        assertEquals( "", UrlUtils.decodeUrl( "" ) );
        assertEquals( "foo", UrlUtils.decodeUrl( "foo" ) );
        assertEquals( "+", UrlUtils.decodeUrl( "+" ) );
        assertEquals( "% ", UrlUtils.decodeUrl( "%25%20" ) );
        assertEquals( "%20", UrlUtils.decodeUrl( "%2520" ) );
        assertEquals( "jar:file:/C:/dir/sub dir/1.0/foo-1.0.jar!/org/Bar.class",
                      UrlUtils.decodeUrl( "jar:file:/C:/dir/sub%20dir/1.0/foo-1.0.jar!/org/Bar.class" ) );
    }

    public void testDecodeUrlLenient()
    {
        assertEquals( " ", UrlUtils.decodeUrl( " " ) );
        assertEquals( "\u00E4\u00F6\u00FC\u00DF", UrlUtils.decodeUrl( "\u00E4\u00F6\u00FC\u00DF" ) );
        assertEquals( "%", UrlUtils.decodeUrl( "%" ) );
        assertEquals( "%2", UrlUtils.decodeUrl( "%2" ) );
        assertEquals( "%2G", UrlUtils.decodeUrl( "%2G" ) );
    }

    public void testDecodeUrlNullSafe()
    {
        assertNull( UrlUtils.decodeUrl( null ) );
    }

    public void testDecodeUrlEncodingUtf8()
    {
        assertEquals( "\u00E4\u00F6\u00FC\u00DF", UrlUtils.decodeUrl( "%C3%A4%C3%B6%C3%BC%C3%9F" ) );
    }

}