/*
    * 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.maven.index.reader.resource;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  import java.nio.file.Files;
  
  import org.apache.maven.index.reader.WritableResourceHandler.WritableResource;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.TemporaryFolder;
  
  import static org.junit.Assert.assertArrayEquals;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNull;
  
  public class PathWritableResourceHandlerTest {
      @Rule
      public TemporaryFolder folder = new TemporaryFolder();
  
      @Test
      public void locate() throws IOException {
          WritableResource test = new PathWritableResourceHandler(folder.getRoot().toPath()).locate("test.txt");
          assertNull(test.read());
          try (OutputStream out = test.write()) {
              out.write('a');
          }
          try (InputStream in = test.read()) {
              assertEquals('a', in.read());
          }
          assertArrayEquals(
                  new byte[] {'a'}, Files.readAllBytes(folder.getRoot().toPath().resolve("test.txt")));
      }
  }