/*
    * 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.mina.example.haiku;
  
  import java.util.Collections;
  import java.util.List;
  
  import org.apache.mina.core.filterchain.IoFilter;
  import org.apache.mina.core.session.IoSession;
  import org.jmock.Mock;
  import org.jmock.MockObjectTestCase;
  
  /**
   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
   */
  public class ToHaikuIoFilterTest extends MockObjectTestCase {
      private IoFilter filter;
  
      @Override
      protected void setUp() throws Exception {
          super.setUp();
  
          filter = new ToHaikuIoFilter();
      }
  
      public void testThreeStringsMakesAHaiku() throws Exception {
          Mock list = mock(List.class);
          list.expects(once()).method("add").with(eq("two")).will(
                  returnValue(true));
          list.expects(once()).method("add").with(eq("three")).will(
                  returnValue(true));
          list.expects(once()).method("toArray").with(isA(String[].class)).will(
                  returnValue(new String[] { "one", "two", "three" }));
          list.expects(exactly(2)).method("size").will(
                  onConsecutiveCalls(returnValue(2), returnValue(3)));
  
          Mock session = mock(IoSession.class);
          session.expects(exactly(3)).method("getAttribute").with(eq("phrases"))
                  .will(
                          onConsecutiveCalls(returnValue(null), returnValue(list
                                  .proxy()), returnValue(list.proxy()),
                                  returnValue(list.proxy())));
          session.expects(exactly(1)).method("setAttribute").with(eq("phrases"),
                  eq(Collections.emptyList()));
          session.expects(exactly(1)).method("removeAttribute").with(
                  eq("phrases"));
  
          IoSession sessionProxy = (IoSession) session.proxy();
  
          Mock nextFilter = mock(IoFilter.NextFilter.class);
          nextFilter.expects(once()).method("messageReceived").with(
                  eq(sessionProxy), eq(new Haiku("one", "two", "three")));
  
          IoFilter.NextFilter nextFilterProxy = (IoFilter.NextFilter) nextFilter
                  .proxy();
  
          filter.messageReceived(nextFilterProxy, sessionProxy, "one");
          filter.messageReceived(nextFilterProxy, sessionProxy, "two");
          filter.messageReceived(nextFilterProxy, sessionProxy, "three");
      }
  
  }