package org.eclipse.aether.util;
   
   /*
    * 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.IOException;
  import java.nio.file.FileSystems;
  import java.nio.file.Files;
  import java.nio.file.Path;
  import java.nio.file.Paths;
  
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.TestName;
  
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.Matchers.equalTo;
  import static org.hamcrest.Matchers.startsWith;
  import static org.junit.Assume.assumeTrue;
  
  public class DirectoryUtilsTest
  {
      @Rule
      public TestName testName = new TestName();
  
      @Test
      public void expectedCasesRelative() throws IOException
      {
          // hack for surefire: sets the property but directory may not exist
          Files.createDirectories( Paths.get ( System.getProperty( "java.io.tmpdir" ) ) );
  
          Path tmpDir = Files.createTempDirectory( testName.getMethodName() );
          Path result;
  
          result = DirectoryUtils.resolveDirectory( "foo", tmpDir, false );
          assertThat( result, equalTo( tmpDir.resolve( "foo" ) ) );
  
          result = DirectoryUtils.resolveDirectory( "foo/bar", tmpDir, false );
          assertThat( result, equalTo( tmpDir.resolve( "foo/bar" ) ) );
  
          result = DirectoryUtils.resolveDirectory( "foo/./bar/..", tmpDir, false );
          assertThat( result, equalTo( tmpDir.resolve( "foo" ) ) );
      }
  
      @Test
      public void expectedCasesAbsolute() throws IOException
      {
          // TODO: this test is skipped on Windows, as it is not clear which drive letter will `new File("/foo")`
          // path get. According to Windows (and  assuming Java Path does separator change OK), "\foo" file should
          // get resolved to CWD drive + "\foo" path, but seems Java 17 is different from 11 and 8 in this respect.
          // This below WORKS on win + Java8 abd win + Java11 but FAILS on win + Java17
          assumeTrue( !"WindowsFileSystem".equals( FileSystems.getDefault().getClass().getSimpleName() ) );
  
          // hack for surefire: sets the property but directory may not exist
          Files.createDirectories( Paths.get ( System.getProperty( "java.io.tmpdir" ) ) );
  
          Path tmpDir = Files.createTempDirectory( testName.getMethodName() );
          Path result;
  
          result = DirectoryUtils.resolveDirectory( "/foo", tmpDir, false );
          assertThat( result, equalTo( FileSystems.getDefault().getPath( "/foo" ).toAbsolutePath() ) );
  
          result = DirectoryUtils.resolveDirectory( "/foo/bar", tmpDir, false );
          assertThat( result, equalTo( FileSystems.getDefault().getPath( "/foo/bar" ).toAbsolutePath() ) );
  
          result = DirectoryUtils.resolveDirectory( "/foo/./bar/..", tmpDir, false );
          assertThat( result, equalTo( FileSystems.getDefault().getPath( "/foo" ).toAbsolutePath() ) );
      }
  
      @Test
      public void existsButIsADirectory() throws IOException
      {
          // hack for surefire: sets the property but directory may not exist
          Files.createDirectories( Paths.get ( System.getProperty( "java.io.tmpdir" ) ) );
  
          Path tmpDir = Files.createTempDirectory( testName.getMethodName() );
          Files.createDirectories( tmpDir.resolve( "foo" ) );
          Path result = DirectoryUtils.resolveDirectory( "foo", tmpDir, false );
          assertThat( result, equalTo( tmpDir.resolve( "foo" ) ) );
      }
  
      @Test
      public void existsButNotADirectory() throws IOException
     {
         // hack for surefire: sets the property but directory may not exist
         Files.createDirectories( Paths.get ( System.getProperty( "java.io.tmpdir" ) ) );
 
         Path tmpDir = Files.createTempDirectory( testName.getMethodName() );
         Files.createFile( tmpDir.resolve( "foo" ) );
         try
         {
             DirectoryUtils.resolveDirectory( "foo", tmpDir, false );
         }
         catch ( IOException e )
         {
             assertThat( e.getMessage(), startsWith( "Path exists, but is not a directory:" ) );
         }
     }
 
     @Test
     public void notExistsAndIsCreated() throws IOException
     {
         // hack for surefire: sets the property but directory may not exist
         Files.createDirectories( Paths.get ( System.getProperty( "java.io.tmpdir" ) ) );
 
         Path tmpDir = Files.createTempDirectory( testName.getMethodName() );
         Files.createDirectories( tmpDir.resolve( "foo" ) );
         Path result = DirectoryUtils.resolveDirectory( "foo", tmpDir, true );
         assertThat( result, equalTo( tmpDir.resolve( "foo" ) ) );
         assertThat( Files.isDirectory( tmpDir.resolve( "foo" ) ), equalTo( true ) );
     }
 }