/*
    * 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.build;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  
  import java.io.FileNotFoundException;
  import java.io.IOException;
  import java.io.Reader;
  import java.nio.charset.StandardCharsets;
  
  import org.apache.commons.io.IOUtils;
  import org.apache.commons.io.build.AbstractOrigin.CharSequenceOrigin;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  /**
   * Tests {@link CharSequenceOrigin}.
   *
   * A CharSequenceOrigin can convert into some of the other aspects.
   */
  public class CharSequenceOriginTest extends AbstractOriginTest<CharSequence, CharSequenceOrigin> {
  
      @BeforeEach
      public void beforeEach() throws FileNotFoundException, IOException {
          setOriginRo(new CharSequenceOrigin(getFixtureStringFromFile()));
          setOriginRw(new CharSequenceOrigin("World"));
      }
  
      private String getFixtureStringFromFile() throws IOException {
          return IOUtils.resourceToString(FILE_RES_RO, StandardCharsets.UTF_8);
      }
  
      @Override
      @Test
      public void testGetFile() {
          // Cannot convert a CharSequence to a File.
          assertThrows(UnsupportedOperationException.class, super::testGetFile);
      }
  
      @Override
      @Test
      public void testGetOutputStream() {
          // Cannot convert a CharSequence to an OutputStream.
          assertThrows(UnsupportedOperationException.class, super::testGetOutputStream);
      }
  
      @Override
      @Test
      public void testGetPath() {
          // Cannot convert a CharSequence to a Path.
          assertThrows(UnsupportedOperationException.class, super::testGetPath);
      }
  
      @Test
      public void testGetReaderIgnoreCharset() throws IOException {
          // The CharSequenceOrigin ignores the given Charset.
          try (final Reader reader = getOriginRo().getReader(StandardCharsets.UTF_16LE)) {
              assertNotNull(reader);
              assertEquals(getFixtureStringFromFile(), IOUtils.toString(reader));
          }
      }
  
      @Override
      @Test
      public void testGetWriter() {
          // Cannot convert a CharSequence to a Writer.
          assertThrows(UnsupportedOperationException.class, super::testGetWriter);
      }
  
  }