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    *  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
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  package org.apache.mina.statemachine.transition;
  
  import java.lang.reflect.Method;
  
  import org.apache.mina.statemachine.State;
  import org.apache.mina.statemachine.context.StateContext;
  import org.apache.mina.statemachine.event.Event;
  import org.apache.mina.statemachine.transition.MethodTransition;
  
  import com.agical.rmock.extension.junit.RMockTestCase;
  
  /**
   * Tests {@link MethodTransition}.
   *
   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
   */
  public class MethodTransitionTest extends RMockTestCase {
      State currentState;
      State nextState;
      TestStateContext context;
      Target target;
      Method subsetAllArgsMethod1;
      Method subsetAllArgsMethod2;
      Event noArgsEvent;
      Event argsEvent;
      Object[] args;
      
      protected void setUp() throws Exception {
          super.setUp();
          
          currentState = new State( "current" );
          nextState = new State( "next" );
          target = (Target) mock(Target.class);
          subsetAllArgsMethod1 = Target.class.getMethod("subsetAllArgs", new Class[] {
                  TestStateContext.class, B.class, A.class, Integer.TYPE
          });
          subsetAllArgsMethod2 = Target.class.getMethod("subsetAllArgs", new Class[] {
                  Event.class, B.class, B.class, Boolean.TYPE
          });
          
          args = new Object[] { new A(), new B(), new C(), new Integer(627438), Boolean.TRUE };
          context = (TestStateContext) mock(TestStateContext.class);
          noArgsEvent = new Event("event", context, new Object[0]);
          argsEvent = new Event("event", context, args);
      }
  
      public void testExecuteWrongEventId() throws Exception {
          startVerification();
          MethodTransition t = new MethodTransition("otherEvent", nextState, "noArgs", target);
          assertFalse(t.execute(noArgsEvent));
      }
      
      public void testExecuteNoArgsMethodOnNoArgsEvent() throws Exception {
          target.noArgs();
          startVerification();
          MethodTransition t = new MethodTransition("event", nextState, "noArgs", target);
          assertTrue(t.execute(noArgsEvent));
      }
      
      public void testExecuteNoArgsMethodOnArgsEvent() throws Exception {
          target.noArgs();
          startVerification();
          MethodTransition t = new MethodTransition("event", nextState, "noArgs", target);
          assertTrue(t.execute(argsEvent));
      }
      
      public void testExecuteExactArgsMethodOnNoArgsEvent() throws Exception {
          startVerification();
          MethodTransition t = new MethodTransition("event", nextState, "exactArgs", target);
          assertFalse(t.execute(noArgsEvent));
      }
      
      public void testExecuteExactArgsMethodOnArgsEvent() throws Exception {
          target.exactArgs((A) args[0], (B) args[1], (C) args[2], 
                           ((Integer) args[3]).intValue(), ((Boolean) args[4]).booleanValue());
          startVerification();
          MethodTransition t = new MethodTransition("event", nextState, "exactArgs", target);
          assertTrue(t.execute(argsEvent));
      }
      
     public void testExecuteSubsetExactArgsMethodOnNoArgsEvent() throws Exception {
         startVerification();
         MethodTransition t = new MethodTransition("event", nextState, "subsetExactArgs", target);
         assertFalse(t.execute(noArgsEvent));
     }
     
     public void testExecuteSubsetExactArgsMethodOnArgsEvent() throws Exception {
         target.subsetExactArgs((A) args[0], (A) args[1], ((Integer) args[3]).intValue());
         startVerification();
         MethodTransition t = new MethodTransition("event", nextState, "subsetExactArgs", target);
         assertTrue(t.execute(argsEvent));
     }
     
     public void testExecuteAllArgsMethodOnArgsEvent() throws Exception {
         target.allArgs(argsEvent, context, (A) args[0], (B) args[1], (C) args[2], 
                 ((Integer) args[3]).intValue(), ((Boolean) args[4]).booleanValue());
         startVerification();
         MethodTransition t = new MethodTransition("event", nextState, "allArgs", target);
         assertTrue(t.execute(argsEvent));
     }
     
     public void testExecuteSubsetAllArgsMethod1OnArgsEvent() throws Exception {
         target.subsetAllArgs(context, (B) args[1], (A) args[2], ((Integer) args[3]).intValue());
         startVerification();
         MethodTransition t = new MethodTransition("event", nextState, subsetAllArgsMethod1, target);
         assertTrue(t.execute(argsEvent));
     }
     
     public void testExecuteSubsetAllArgsMethod2OnArgsEvent() throws Exception {
         target.subsetAllArgs(argsEvent, (B) args[1], (B) args[2], ((Boolean) args[4]).booleanValue());
         startVerification();
         MethodTransition t = new MethodTransition("event", nextState, subsetAllArgsMethod2, target);
         assertTrue(t.execute(argsEvent));
     }
     
     public interface Target {
         void noArgs();
         void exactArgs(A a, B b, C c, int integer, boolean bool);
         void allArgs(Event event, StateContext ctxt, A a, B b, C c, int integer, boolean bool);
         void subsetExactArgs(A a, A b, int integer);
         void subsetAllArgs(TestStateContext ctxt, B b, A c, int integer);
         void subsetAllArgs(Event event, B b, B c, boolean bool);
     }
     
     public interface TestStateContext extends StateContext {}
     
     public static class A {}
     public static class B extends A {}
     public static class C extends B {}
 }