/*
    * 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.scxml2.model;
  
  import java.util.HashMap;
  import java.util.Map;
  import java.util.Set;
  
  import org.apache.commons.scxml2.SCXMLExecutor;
  import org.apache.commons.scxml2.SCXMLTestHelper;
  import org.apache.commons.scxml2.TriggerEvent;
  import org.junit.Assert;
  import org.junit.Test;
  /**
   * Unit tests {@link org.apache.commons.scxml2.SCXMLExecutor}.
   */
  public class DatamodelTest {
  
      /**
       * Test the stateless model, simultaneous executions
       */    
      @Test
      public void testDatamodelSimultaneousJexl() throws Exception {
          SCXMLExecutor exec01 = SCXMLTestHelper.getExecutor("org/apache/commons/scxml2/env/jexl/datamodel-01.xml");
          exec01.go();
          SCXMLExecutor exec02 = SCXMLTestHelper.getExecutor("org/apache/commons/scxml2/env/jexl/datamodel-01.xml");
          exec02.go();
          Assert.assertFalse(exec01 == exec02);
          runtest(exec01, exec02);
      }
      
      @Test
      public void testDatamodelNamespacePrefixedXPaths() throws Exception {
          SCXMLExecutor exec01 = SCXMLTestHelper.getExecutor("org/apache/commons/scxml2/env/jexl/datamodel-02.xml");
          exec01.go();
          SCXMLExecutor exec02 = SCXMLTestHelper.getExecutor("org/apache/commons/scxml2/env/jexl/datamodel-02.xml");
          exec02.go();
          Assert.assertFalse(exec01 == exec02);
          runtest(exec01, exec02);
      }
      
      @Test
      public void testDatamodel04Jexl() throws Exception {
          SCXMLExecutor exec01 = SCXMLTestHelper.getExecutor("org/apache/commons/scxml2/env/jexl/datamodel-04.xml");
          exec01.go();
          Set<EnterableState> currentStates = exec01.getStatus().getStates();
          Assert.assertEquals(1, currentStates.size());
          Assert.assertEquals("ten", currentStates.iterator().next().getId());
          Map<String, Object> payload = new HashMap<String, Object>();
          payload.put("one", "1");
          payload.put("two", "2");
          TriggerEvent te = new TriggerEvent("done.state.ten", TriggerEvent.SIGNAL_EVENT, payload);
          SCXMLTestHelper.fireEvent(exec01, te);
          currentStates = exec01.getStatus().getStates();
          Assert.assertEquals(1, currentStates.size());
          Assert.assertEquals("twenty", currentStates.iterator().next().getId());
          SCXMLTestHelper.fireEvent(exec01, "done.state.twenty");
          currentStates = exec01.getStatus().getStates();
          Assert.assertEquals(1, currentStates.size());
          Assert.assertEquals("thirty", currentStates.iterator().next().getId());
      }
      
      @Test
      public void testDatamodel05Jexl() throws Exception {
          SCXMLExecutor exec01 = SCXMLTestHelper.getExecutor("org/apache/commons/scxml2/env/jexl/datamodel-05.xml");
          exec01.go();
          SCXMLTestHelper.assertState(exec01, "end");
      }
  
      private void runtest(SCXMLExecutor exec01, SCXMLExecutor exec02) throws Exception {
          //// Interleaved
          // exec01
          Set<EnterableState> currentStates = exec01.getStatus().getStates();
          Assert.assertEquals(1, currentStates.size());
          Assert.assertEquals("ten", currentStates.iterator().next().getId());
          exec01 = SCXMLTestHelper.testInstanceSerializability(exec01);
          currentStates = fireEvent("done.state.ten", exec01);
          Assert.assertEquals(1, currentStates.size());
          Assert.assertEquals("twenty", currentStates.iterator().next().getId());
          // exec02
          currentStates = exec02.getStatus().getStates();
          Assert.assertEquals(1, currentStates.size());
          Assert.assertEquals("ten", currentStates.iterator().next().getId());
          // exec01
          currentStates = fireEvent("done.state.twenty", exec01);
         Assert.assertEquals(1, currentStates.size());
         Assert.assertEquals("thirty", currentStates.iterator().next().getId());
         exec01 = SCXMLTestHelper.testInstanceSerializability(exec01);
         // exec02
         currentStates = fireEvent("done.state.ten", exec02);
         Assert.assertEquals(1, currentStates.size());
         Assert.assertEquals("twenty", currentStates.iterator().next().getId());
         exec02 = SCXMLTestHelper.testInstanceSerializability(exec02);
         currentStates = fireEvent("done.state.twenty", exec02);
         Assert.assertEquals(1, currentStates.size());
         Assert.assertEquals("thirty", currentStates.iterator().next().getId());
         currentStates = fireEvent("done.state.thirty", exec02);
         Assert.assertEquals(1, currentStates.size());
         Assert.assertEquals("forty", currentStates.iterator().next().getId());
         // exec01
         currentStates = fireEvent("done.state.thirty", exec01);
         Assert.assertEquals(1, currentStates.size());
         Assert.assertEquals("forty", currentStates.iterator().next().getId());
     }
 
     private Set<EnterableState> fireEvent(String name, SCXMLExecutor exec) throws Exception {
         TriggerEvent[] evts = {new TriggerEvent(name,
                 TriggerEvent.SIGNAL_EVENT, null)};
         exec.triggerEvents(evts);
         return exec.getStatus().getStates();
     }
 }