/*
    * 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.file;
  
  import static org.apache.commons.io.file.CounterAssertions.assertCounts;
  
  import java.io.IOException;
  
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.params.ParameterizedTest;
  import org.junit.jupiter.params.provider.MethodSource;
  
  /**
   * Tests {@link CountingPathVisitor}.
   */
  public class CountingPathVisitorTest extends TestArguments {
  
      private void checkZeroCounts(final CountingPathVisitor visitor) {
          Assertions.assertEquals(CountingPathVisitor.withLongCounters(), visitor);
          Assertions.assertEquals(CountingPathVisitor.withBigIntegerCounters(), visitor);
      }
  
      /**
       * Tests an empty folder.
       */
      @ParameterizedTest
      @MethodSource("countingPathVisitors")
      public void testCountEmptyFolder(final CountingPathVisitor visitor) throws IOException {
          checkZeroCounts(visitor);
          try (TempDirectory tempDir = TempDirectory.create(getClass().getCanonicalName())) {
              assertCounts(1, 0, 0, PathUtils.visitFileTree(visitor, tempDir.get()));
          }
      }
  
      /**
       * Tests a directory with one file of size 0.
       */
      @ParameterizedTest
      @MethodSource("countingPathVisitors")
      public void testCountFolders1FileSize0(final CountingPathVisitor visitor) throws IOException {
          checkZeroCounts(visitor);
          assertCounts(1, 1, 0, PathUtils.visitFileTree(visitor,
                  "src/test/resources/org/apache/commons/io/dirs-1-file-size-0"));
      }
  
      /**
       * Tests a directory with one file of size 1.
       */
      @ParameterizedTest
      @MethodSource("countingPathVisitors")
      public void testCountFolders1FileSize1(final CountingPathVisitor visitor) throws IOException {
          checkZeroCounts(visitor);
          assertCounts(1, 1, 1, PathUtils.visitFileTree(visitor,
                  "src/test/resources/org/apache/commons/io/dirs-1-file-size-1"));
      }
  
      /**
       * Tests a directory with two subdirectories, each containing one file of size 1.
       */
      @ParameterizedTest
      @MethodSource("countingPathVisitors")
      public void testCountFolders2FileSize2(final CountingPathVisitor visitor) throws IOException {
          checkZeroCounts(visitor);
          assertCounts(3, 2, 2, PathUtils.visitFileTree(visitor,
                  "src/test/resources/org/apache/commons/io/dirs-2-file-size-2"));
      }
  
      @ParameterizedTest
      @MethodSource("countingPathVisitors")
      void testToString(final CountingPathVisitor visitor) {
          // Make sure it does not blow up
          visitor.toString();
      }
  }