/*
    * 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.
   */
  package org.apache.commons.io;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.fail;
  
  import java.io.File;
  import java.io.IOException;
  import java.nio.file.Path;
  import java.nio.file.Paths;
  import java.nio.file.StandardCopyOption;
  
  import org.apache.commons.io.file.PathUtils;
  import org.apache.commons.io.file.TempFile;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.io.TempDir;
  
  /**
   * This class ensure the correctness of {@link FileUtils#copyDirectoryToDirectory(File, File)}. TODO: currently does not
   * cover happy cases
   *
   * @see FileUtils#copyDirectoryToDirectory(File, File)
   */
  public class FileUtilsCopyDirectoryToDirectoryTest {
  
      private static void assertExceptionTypeAndMessage(final File srcDir, final File destDir,
          final Class<? extends Exception> expectedExceptionType, final String expectedMessage) {
          try {
              FileUtils.copyDirectoryToDirectory(srcDir, destDir);
          } catch (final Exception e) {
              final String msg = e.getMessage();
              assertEquals(expectedExceptionType, e.getClass());
              assertEquals(expectedMessage, msg);
              return;
          }
          fail();
      }
  
      /** Temporary folder managed by JUnit. */
      @TempDir
      public File temporaryFolder;
  
      private void assertAclEntryList(final Path sourcePath, final Path destPath) throws IOException {
          assertEquals(PathUtils.getAclEntryList(sourcePath), PathUtils.getAclEntryList(destPath));
      }
  
      @Test
      public void testCopyDirectoryToDirectoryThrowsIllegalArgumentExceptionWithCorrectMessageWhenDstDirIsNotDirectory()
          throws IOException {
          final File srcDir = new File(temporaryFolder, "sourceDirectory");
          srcDir.mkdir();
          final File destDir = new File(temporaryFolder, "notadirectory");
          destDir.createNewFile();
          final String expectedMessage = String.format("Parameter 'destinationDir' is not a directory: '%s'",
              destDir);
          assertExceptionTypeAndMessage(srcDir, destDir, IllegalArgumentException.class, expectedMessage);
      }
  
      @Test
      public void testCopyDirectoryToDirectoryThrowsIllegalExceptionWithCorrectMessageWhenSrcDirIsNotDirectory()
          throws IOException {
          try (TempFile srcDir = TempFile.create("notadirectory", null)) {
              final File destDir = new File(temporaryFolder, "destinationDirectory");
              destDir.mkdirs();
              final String expectedMessage = String.format("Parameter 'srcDir' is not a directory: '%s'", srcDir);
              assertExceptionTypeAndMessage(srcDir.toFile(), destDir, IllegalArgumentException.class, expectedMessage);
          }
      }
  
      @Test
      public void testCopyDirectoryToDirectoryThrowsNullPointerExceptionWithCorrectMessageWhenDstDirIsNull() {
          final File srcDir = new File(temporaryFolder, "sourceDirectory");
          srcDir.mkdir();
          final File destDir = null;
          assertExceptionTypeAndMessage(srcDir, destDir, NullPointerException.class, "destinationDir");
      }
  
      @Test
      public void testCopyDirectoryToDirectoryThrowsNullPointerExceptionWithCorrectMessageWhenSrcDirIsNull() {
          final File srcDir = null;
          final File destinationDirectory = new File(temporaryFolder, "destinationDirectory");
          destinationDirectory.mkdir();
          assertExceptionTypeAndMessage(srcDir, destinationDirectory, NullPointerException.class, "sourceDir");
      }
 
     @Test
     public void testCopyFileAndCheckAcl() throws IOException {
         try (TempFile sourcePath = TempFile.create("TempOutput", ".bin")) {
             final Path destPath = Paths.get(temporaryFolder.getAbsolutePath(), "SomeFile.bin");
             // Test copy attributes without replace FIRST.
             FileUtils.copyFile(sourcePath.toFile(), destPath.toFile(), true, StandardCopyOption.COPY_ATTRIBUTES);
             assertAclEntryList(sourcePath.get(), destPath);
             //
             FileUtils.copyFile(sourcePath.toFile(), destPath.toFile());
             assertAclEntryList(sourcePath.get(), destPath);
             //
             FileUtils.copyFile(sourcePath.toFile(), destPath.toFile(), true, StandardCopyOption.REPLACE_EXISTING);
             assertAclEntryList(sourcePath.get(), destPath);
             //
             FileUtils.copyFile(sourcePath.toFile(), destPath.toFile(), true, StandardCopyOption.REPLACE_EXISTING, StandardCopyOption.COPY_ATTRIBUTES);
             assertAclEntryList(sourcePath.get(), destPath);
         }
     }
 }