package org.apache.maven.model.path;
   
   /*
    * 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 static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNull;
  
  import org.junit.Test;
  
  /**
   * @author Benjamin Bentmann
   */
  public class DefaultUrlNormalizerTest
  {
  
      private UrlNormalizer normalizer = new DefaultUrlNormalizer();
  
      private String normalize( String url )
      {
          return normalizer.normalize( url );
      }
  
      @Test
      public void testNullSafe()
      {
          assertNull( normalize( null ) );
      }
  
      @Test
      public void testTrailingSlash()
      {
          assertEquals( "", normalize( "" ) );
          assertEquals( "http://server.org/dir", normalize( "http://server.org/dir" ) );
          assertEquals( "http://server.org/dir/", normalize( "http://server.org/dir/" ) );
      }
  
      @Test
      public void testRemovalOfParentRefs()
      {
          assertEquals( "http://server.org/child", normalize( "http://server.org/parent/../child" ) );
          assertEquals( "http://server.org/child", normalize( "http://server.org/grand/parent/../../child" ) );
  
          assertEquals( "http://server.org//child", normalize( "http://server.org/parent/..//child" ) );
          assertEquals( "http://server.org/child", normalize( "http://server.org/parent//../child" ) );
      }
  
      @Test
      public void testPreservationOfDoubleSlashes()
      {
          assertEquals( "scm:hg:ssh://localhost//home/user", normalize( "scm:hg:ssh://localhost//home/user" ) );
          assertEquals( "file:////UNC/server", normalize( "file:////UNC/server" ) );
          assertEquals( "[fetch=]http://server.org/[push=]ssh://server.org/",
                        normalize( "[fetch=]http://server.org/[push=]ssh://server.org/" ) );
      }
  
      @Test
      public void absolutePathTraversalPastRootIsOmitted()
      {
          assertEquals( "/", normalize("/../" ) );
      }
  
      @Test
      public void parentDirectoryRemovedFromRelativeUriReference()
      {
          assertEquals( "", normalize( "a/../" ) );
      }
  
      @Test
      public void leadingParentDirectoryNotRemovedFromRelativeUriReference()
      {
          assertEquals( "../", normalize( "../" ) );
      }
  }