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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.tools.plugin.util;
20  
21  import java.io.UnsupportedEncodingException;
22  import java.net.URL;
23  import java.net.URLDecoder;
24  
25  import org.junit.jupiter.api.Test;
26  
27  import static org.junit.jupiter.api.Assertions.assertEquals;
28  
29  /**
30   * @author jdcasey
31   */
32  public class TestUtils {
33  
34      @Test
35      void testDirnameFunction_METATEST() throws UnsupportedEncodingException {
36          String classname = getClass().getName().replace('.', '/') + ".class";
37          String basedir = TestUtils.dirname(classname);
38  
39          ClassLoader cl = Thread.currentThread().getContextClassLoader();
40          URL resource = cl.getResource(classname);
41  
42          assertEquals(URLDecoder.decode(resource.getPath(), "UTF-8"), basedir + classname);
43      }
44  
45      public static String dirname(String file) {
46          ClassLoader cl = Thread.currentThread().getContextClassLoader();
47          URL fileResource = cl.getResource(file);
48  
49          String fullPath = fileResource.getPath();
50  
51          String path = fullPath.substring(0, fullPath.length() - file.length());
52  
53          try {
54              /*
55               * FIXME: URL encoding and HTML form encoding are not the same. Use FileUtils.toFile(URL) from plexus-utils
56               * once PLXUTILS-56 is released.
57               */
58              // necessary for JDK 1.5+, where spaces are escaped to %20
59              return URLDecoder.decode(path, "UTF-8");
60          } catch (UnsupportedEncodingException e) {
61              throw new Error("Broken JVM, UTF-8 must be supported", e);
62          }
63      }
64  }