/*
    * 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.BufferedOutputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.OutputStream;
  
  import org.apache.maven.index.reader.WritableResourceHandler;
  import org.apache.maven.index.reader.WritableResourceHandler.WritableResource;
  import org.jmock.Expectations;
  import org.jmock.Mockery;
  import org.junit.Test;
  
  import static org.junit.Assert.assertArrayEquals;
  import static org.junit.Assert.assertTrue;
  
  public class BufferedWritableResourceHandlerTest {
      private Mockery context = new Mockery();
  
      @Test
      public void locate() throws IOException {
          final WritableResource writableResource = context.mock(WritableResource.class);
          final WritableResourceHandler writableResourceHandler = context.mock(WritableResourceHandler.class);
          final ByteArrayOutputStream baos = new ByteArrayOutputStream();
          context.checking(new Expectations() {
              {
                  oneOf(writableResource).write();
                  will(returnValue(baos));
                  oneOf(writableResourceHandler).locate("test.txt");
                  will(returnValue(writableResource));
              }
          });
          OutputStream out = new BufferedWritableResourceHandler(writableResourceHandler)
                  .locate("test.txt")
                  .write();
          assertTrue(out instanceof BufferedOutputStream);
          assertArrayEquals(new byte[] {}, baos.toByteArray());
          out.write('a');
          assertArrayEquals(new byte[] {}, baos.toByteArray());
          out.flush();
          assertArrayEquals(new byte[] {'a'}, baos.toByteArray());
          context.assertIsSatisfied();
      }
  
      @Test
      public void close() throws IOException {
          final WritableResourceHandler writableResourceHandler = context.mock(WritableResourceHandler.class);
          context.checking(new Expectations() {
              {
                  oneOf(writableResourceHandler).close();
              }
          });
          new BufferedWritableResourceHandler(writableResourceHandler).close();
          context.assertIsSatisfied();
      }
  }