package org.apache.maven.shared.io.location;
   
   /*
    * 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 org.apache.maven.shared.io.Utils;
  import org.apache.maven.shared.utils.io.IOUtil;
  
  import java.io.ByteArrayOutputStream;
  import java.io.File;
  import java.io.IOException;
  import java.io.InputStream;
  import java.nio.ByteBuffer;
  
  import junit.framework.TestCase;
  
  public class FileLocationTest
      extends TestCase
  {
  
      public void testShouldConstructWithFileThenRetrieveSameFile() throws IOException
      {
          File file = File.createTempFile( "test.", ".file-location" );
          file.deleteOnExit();
  
          FileLocation location = new FileLocation( file, file.getAbsolutePath() );
  
          assertSame( file, location.getFile() );
          assertEquals( file.getAbsolutePath(), location.getSpecification() );
      }
  
      public void testShouldReadFileContentsUsingByteBuffer() throws IOException
      {
          File file = File.createTempFile( "test.", ".file-location" );
          file.deleteOnExit();
  
          String testStr = "This is a test";
  
          Utils.writeFileWithEncoding( file, testStr, "US-ASCII" );
  
          FileLocation location = new FileLocation( file, file.getAbsolutePath() );
  
          location.open();
  
          ByteBuffer buffer = ByteBuffer.allocate( testStr.length() );
          location.read( buffer );
  
          assertEquals( testStr, new String( buffer.array(), "US-ASCII" ) );
      }
  
      public void testShouldReadFileContentsUsingStream() throws IOException
      {
          File file = File.createTempFile( "test.", ".file-location" );
          file.deleteOnExit();
  
          String testStr = "This is a test";
  
          Utils.writeFileWithEncoding( file, testStr, "US-ASCII" );
  
          FileLocation location = new FileLocation( file, file.getAbsolutePath() );
  
          location.open();
  
          InputStream stream = location.getInputStream();
          ByteArrayOutputStream out = new ByteArrayOutputStream();
          IOUtil.copy( stream, out );
  
          assertEquals( testStr, new String(out.toByteArray(), "US-ASCII" ) );
      }
  
      public void testShouldReadFileContentsUsingByteArray() throws IOException
      {
          File file = File.createTempFile( "test.", ".file-location" );
          file.deleteOnExit();
  
          String testStr = "This is a test";
  
          Utils.writeFileWithEncoding( file, testStr, "US-ASCII" );
  
          FileLocation location = new FileLocation( file, file.getAbsolutePath() );
  
          location.open();
  
         byte[] buffer = new byte[ testStr.length() ];
         location.read( buffer );
 
         assertEquals( testStr, new String( buffer, "US-ASCII" ) );
     }
 
     public void testShouldReadThenClose() throws IOException
     {
         File file = File.createTempFile( "test.", ".file-location" );
         file.deleteOnExit();
 
         String testStr = "This is a test";
 
         Utils.writeFileWithEncoding( file, testStr, "US-ASCII" );
 
         FileLocation location = new FileLocation( file, file.getAbsolutePath() );
 
         location.open();
 
         byte[] buffer = new byte[ testStr.length() ];
         location.read( buffer );
 
         assertEquals( testStr, new String( buffer, "US-ASCII" ) );
 
         location.close();
     }
 
     public void testShouldOpenThenFailToSetFile() throws IOException
     {
         File file = File.createTempFile( "test.", ".file-location" );
         file.deleteOnExit();
 
         TestFileLocation location = new TestFileLocation( file.getAbsolutePath() );
 
         location.open();
 
         try
         {
             location.setFile( file );
 
             fail( "should not succeed." );
         }
         catch( IllegalStateException e )
         {
         }
     }
 
     public void testShouldConstructWithoutFileThenSetFileThenOpen() throws IOException
     {
         File file = File.createTempFile( "test.", ".file-location" );
         file.deleteOnExit();
 
         TestFileLocation location = new TestFileLocation( file.getAbsolutePath() );
 
         location.setFile( file );
         location.open();
     }
 
     public void testShouldConstructWithLocationThenRetrieveEquivalentFile() throws IOException
     {
         File file = File.createTempFile( "test.", ".file-location" );
         file.deleteOnExit();
 
         Location location = new TestFileLocation( file.getAbsolutePath() );
 
         assertEquals( file, location.getFile() );
         assertEquals( file.getAbsolutePath(), location.getSpecification() );
     }
 
     private static final class TestFileLocation extends FileLocation
     {
 
         TestFileLocation( String specification )
         {
             super( specification );
         }
 
     }
 
 }