/* Licensed 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.activiti.engine.test.bpmn.event.error;

import org.activiti.engine.impl.test.PluggableActivitiTestCase;
import org.activiti.engine.task.Task;
import org.activiti.engine.test.Deployment;


/**
 * @author Falko Menge
 */
public class ErrorEventSubProcessTest extends PluggableActivitiTestCase {
  
  @Deployment
  // an event subprocesses takes precedence over a boundary event
  public void testEventSubprocessTakesPrecedence() {
    String procId = runtimeService.startProcessInstanceByKey("CatchErrorInEmbeddedSubProcess").getId();
    assertThatErrorHasBeenCaught(procId);
  }
  
  @Deployment
  // an event subprocess with errorCode takes precedence over a catch-all handler
  public void testErrorCodeTakesPrecedence() {
    String procId = runtimeService.startProcessInstanceByKey("CatchErrorInEmbeddedSubProcess").getId();
        
    // The process will throw an error event,
    // which is caught and escalated by a User Task
    assertEquals("No tasks found in task list.", 1, taskService.createTaskQuery()
            .taskDefinitionKey("taskAfterErrorCatch2") // <!>
            .count());
    Task task = taskService.createTaskQuery().singleResult();
    assertEquals("Escalated Task", task.getName());
    
    // Completing the Task will end the process instance
    taskService.complete(task.getId());
    assertProcessEnded(procId);
    
  }
  
  @Deployment
  public void testCatchErrorInEmbeddedSubProcess() {
    String procId = runtimeService.startProcessInstanceByKey("CatchErrorInEmbeddedSubProcess").getId();
    assertThatErrorHasBeenCaught(procId);
  }

  @Deployment
  public void testCatchErrorThrownByScriptTaskInEmbeddedSubProcess() {
    String procId = runtimeService.startProcessInstanceByKey("CatchErrorThrownByScriptTaskInEmbeddedSubProcess").getId();
    assertThatErrorHasBeenCaught(procId);
  }

  @Deployment
  public void testCatchErrorThrownByScriptTaskInEmbeddedSubProcessWithErrorCode() {
    String procId = runtimeService.startProcessInstanceByKey("CatchErrorThrownByScriptTaskInEmbeddedSubProcessWithErrorCode").getId();
    assertThatErrorHasBeenCaught(procId);
  }

  @Deployment
  public void testCatchErrorThrownByScriptTaskInTopLevelProcess() {
    String procId = runtimeService.startProcessInstanceByKey("CatchErrorThrownByScriptTaskInTopLevelProcess").getId();
    assertThatErrorHasBeenCaught(procId);
  }

  @Deployment
  public void testCatchErrorThrownByScriptTaskInsideSubProcessInTopLevelProcess() {
    String procId = runtimeService.startProcessInstanceByKey("CatchErrorThrownByScriptTaskInsideSubProcessInTopLevelProcess").getId();
    assertThatErrorHasBeenCaught(procId);
  }

  @Deployment(resources = {
      "org/activiti/engine/test/bpmn/event/error/ErrorEventSubProcessTest.testThrowErrorInScriptTaskInsideCallActivitiCatchInTopLevelProcess.bpmn20.xml",
      "org/activiti/engine/test/bpmn/event/error/BoundaryErrorEventTest.testCatchErrorThrownByJavaDelegateOnCallActivity-child.bpmn20.xml" })
  public void testThrowErrorInScriptTaskInsideCallActivitiCatchInTopLevelProcess() {
    String procId = runtimeService.startProcessInstanceByKey("testThrowErrorInScriptTaskInsideCallActivitiCatchInTopLevelProcess").getId();
    assertThatErrorHasBeenCaught(procId);
  }

  private void assertThatErrorHasBeenCaught(String procId) {
    // The process will throw an error event,
    // which is caught and escalated by a User Task
    assertEquals("No tasks found in task list.", 1, taskService.createTaskQuery().count());
    Task task = taskService.createTaskQuery().singleResult();
    assertEquals("Escalated Task", task.getName());
    
    // Completing the Task will end the process instance
    taskService.complete(task.getId());
    assertProcessEnded(procId);
  }

}