/*
    * 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.build;
  
  import static java.nio.file.StandardOpenOption.READ;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.mockito.Mockito.mock;
  
  import java.io.IOException;
  import java.nio.channels.Channel;
  import java.nio.channels.ReadableByteChannel;
  import java.nio.channels.WritableByteChannel;
  import java.nio.file.Files;
  import java.nio.file.OpenOption;
  import java.nio.file.Path;
  import java.nio.file.Paths;
  import java.nio.file.StandardOpenOption;
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.HashSet;
  
  import org.apache.commons.io.build.AbstractOrigin.ChannelOrigin;
  import org.apache.commons.lang3.ArrayUtils;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.params.ParameterizedTest;
  import org.junit.jupiter.params.provider.EnumSource;
  
  class ChannelOriginTest extends AbstractOriginTest<Channel, ChannelOrigin> {
      @Override
      protected ChannelOrigin newOriginRo() throws IOException {
          return new ChannelOrigin(Files.newByteChannel(Paths.get(FILE_NAME_RO), Collections.singleton(READ)));
      }
  
      @Override
      protected ChannelOrigin newOriginRw() throws IOException {
          return new ChannelOrigin(Files.newByteChannel(
                  tempPath.resolve(FILE_NAME_RW),
                  new HashSet<>(Arrays.asList(StandardOpenOption.READ, StandardOpenOption.WRITE))));
      }
  
      @Override
      protected void resetOriginRw() throws IOException {
          // Reset the file
          final Path rwPath = tempPath.resolve(FILE_NAME_RW);
          Files.write(rwPath, ArrayUtils.EMPTY_BYTE_ARRAY, StandardOpenOption.CREATE);
      }
  
      @Override
      @Test
      void testGetFile() {
          // A FileByteChannel cannot be converted into a File.
          assertThrows(UnsupportedOperationException.class, super::testGetFile);
      }
  
      @Override
      @Test
      void testGetPath() {
          // A FileByteChannel cannot be converted into a Path.
          assertThrows(UnsupportedOperationException.class, super::testGetPath);
      }
  
      @Override
      @Test
      void testGetRandomAccessFile() {
          // A FileByteChannel cannot be converted into a RandomAccessFile.
          assertThrows(UnsupportedOperationException.class, super::testGetRandomAccessFile);
      }
  
      @Override
      @ParameterizedTest
      @EnumSource(StandardOpenOption.class)
      void testGetRandomAccessFile(final OpenOption openOption) {
          // A FileByteChannel cannot be converted into a RandomAccessFile.
          assertThrows(UnsupportedOperationException.class, () -> super.testGetRandomAccessFile(openOption));
      }
  
      @Test
      void testUnsupportedOperations_ReadableByteChannel() {
          final ReadableByteChannel channel = mock(ReadableByteChannel.class);
          final ChannelOrigin origin = new ChannelOrigin(channel);
          assertThrows(UnsupportedOperationException.class, origin::getOutputStream);
          assertThrows(UnsupportedOperationException.class, () -> origin.getWriter(null));
          assertThrows(UnsupportedOperationException.class, () -> origin.getChannel(WritableByteChannel.class));
      }
  
     @Test
     void testUnsupportedOperations_WritableByteChannel() {
         final Channel channel = mock(WritableByteChannel.class);
         final ChannelOrigin origin = new ChannelOrigin(channel);
         assertThrows(UnsupportedOperationException.class, origin::getInputStream);
         assertThrows(UnsupportedOperationException.class, () -> origin.getReader(null));
         assertThrows(UnsupportedOperationException.class, () -> origin.getChannel(ReadableByteChannel.class));
     }
 }