/*
    * 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
    *
    *      https://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.file;
  
  import static org.apache.commons.io.file.CounterAssertions.assertCounts;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import java.io.IOException;
  import java.nio.file.Files;
  import java.nio.file.Path;
  import java.nio.file.Paths;
  
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.io.TempDir;
  
  /**
   * Tests {@link DeletingPathVisitor}.
   */
  class PathUtilsCleanDirectoryTest {
  
      @TempDir
      private Path tempDir;
  
      /**
       * Tests a directory with one file of size 0.
       */
      @Test
      void testCleanDirectory1FileSize0() throws IOException {
          PathUtils.copyDirectory(Paths.get("src/test/resources/org/apache/commons/io/dirs-1-file-size-0"), tempDir);
          assertCounts(1, 1, 0, PathUtils.cleanDirectory(tempDir));
          assertTrue(Files.exists(tempDir));
      }
  
      /**
       * Tests a directory with one file of size 1.
       */
      @Test
      void testCleanDirectory1FileSize1() throws IOException {
          PathUtils.copyDirectory(Paths.get("src/test/resources/org/apache/commons/io/dirs-1-file-size-1"), tempDir);
          assertCounts(1, 1, 1, PathUtils.cleanDirectory(tempDir));
          assertTrue(Files.exists(tempDir));
      }
  
      /**
       * Tests a directory with two subdirectories, each containing one file of size 1.
       */
      @Test
      void testCleanDirectory2FileSize2() throws IOException {
          PathUtils.copyDirectory(Paths.get("src/test/resources/org/apache/commons/io/dirs-2-file-size-2"), tempDir);
          assertCounts(3, 2, 2, PathUtils.cleanDirectory(tempDir));
          assertTrue(Files.exists(tempDir));
      }
  
      /**
       * Tests an empty folder.
       */
      @Test
      void testCleanEmptyDirectory() throws IOException {
          assertCounts(1, 0, 0, PathUtils.cleanDirectory(tempDir));
          assertTrue(Files.exists(tempDir));
      }
  }