content: /*
   * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
   *
   * 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.examples.task;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
  
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import org.activiti.engine.ActivitiOptimisticLockingException;
  import org.activiti.engine.history.HistoricVariableInstance;
  import org.activiti.engine.impl.history.HistoryLevel;
  import org.activiti.engine.impl.persistence.entity.TaskEntity;
  import org.activiti.engine.impl.test.PluggableActivitiTestCase;
  import org.activiti.engine.task.Task;
  
  /**
  
   */
  public class StandaloneTaskTest extends PluggableActivitiTestCase {
  
      public void testCreateToComplete() {
          // Create and save task
          Task task = taskService.newTask();
          task.setName("testTask");
          taskService.saveTask(task);
          String taskId = task.getId();
  
          // Add user as candidate user
          taskService.addCandidateUser(taskId, "kermit");
          taskService.addCandidateUser(taskId, "gonzo");
  
          // Retrieve task list for kermit
          List<Task> tasks = taskService.createTaskQuery().taskCandidateUser("kermit").list();
          assertThat(tasks).hasSize(1);
          assertThat(tasks.get(0).getName()).isEqualTo("testTask");
  
          // Retrieve task list for gonzo
          tasks = taskService.createTaskQuery().taskCandidateUser("gonzo").list();
          assertThat(tasks).hasSize(1);
          assertThat(tasks.get(0).getName()).isEqualTo("testTask");
  
          task.setName("Update name");
          taskService.saveTask(task);
          tasks = taskService.createTaskQuery().taskCandidateUser("kermit").list();
          assertThat(tasks).hasSize(1);
          assertThat(tasks.get(0).getName()).isEqualTo("Update name");
  
          // Claim task
          taskService.claim(taskId, "kermit");
  
          // Tasks shouldn't appear in the candidate tasklists anymore
          assertThat(taskService.createTaskQuery().taskCandidateUser("kermit").list().isEmpty()).isTrue();
          assertThat(taskService.createTaskQuery().taskCandidateUser("gonzo").list().isEmpty()).isTrue();
  
          // Complete task
          taskService.deleteTask(taskId, true);
  
          // Task should be removed from runtime data
          // TODO: check for historic data when implemented!
          assertThat(taskService.createTaskQuery().taskId(taskId).singleResult()).isNull();
      }
  
      public void testOptimisticLockingThrownOnMultipleUpdates() {
          Task task = taskService.newTask();
          taskService.saveTask(task);
          String taskId = task.getId();
  
          // first modification
          Task task1 = taskService.createTaskQuery().taskId(taskId).singleResult();
          Task task2 = taskService.createTaskQuery().taskId(taskId).singleResult();
  
          task1.setDescription("first modification");
          taskService.saveTask(task1);
  
          // second modification on the initial instance
          task2.setDescription("second modification");
          assertThatExceptionOfType(ActivitiOptimisticLockingException.class)
              .as("should get an exception here as the task was modified by someone else.")
              .isThrownBy(() -> taskService.saveTask(task2));
  
          taskService.deleteTask(taskId, true);
      }
  
      // See https://activiti.atlassian.net/browse/ACT-1290
      public void testRevisionUpdatedOnSave() {
          Task task = taskService.newTask();
          taskService.saveTask(task);
          assertThat(((TaskEntity) task).getRevision()).isEqualTo(1);
  
          task.setDescription("first modification");
          taskService.saveTask(task);
          assertThat(((TaskEntity) task).getRevision()).isEqualTo(2);
  
          task.setDescription("second modification");
          taskService.saveTask(task);
          assertThat(((TaskEntity) task).getRevision()).isEqualTo(3);
  
          taskService.deleteTask(task.getId(), true);
      }
  
      // See https://activiti.atlassian.net/browse/ACT-1290
      public void testRevisionUpdatedOnSaveWhenFetchedUsingQuery() {
          Task task = taskService.newTask();
          taskService.saveTask(task);
          assertThat(((TaskEntity) task).getRevision()).isEqualTo(1);
  
          task.setAssignee("kermit");
          taskService.saveTask(task);
          assertThat(((TaskEntity) task).getRevision()).isEqualTo(2);
  
          // Now fetch the task through the query api
          task = taskService.createTaskQuery().singleResult();
          assertThat(((TaskEntity) task).getRevision()).isEqualTo(2);
          task.setPriority(1);
          taskService.saveTask(task);
  
          assertThat(((TaskEntity) task).getRevision()).isEqualTo(3);
  
          taskService.deleteTask(task.getId(), true);
      }
  
      public void testHistoricVariableOkOnUpdate() {
          if (processEngineConfiguration.getHistoryLevel().isAtLeast(HistoryLevel.AUDIT)) {
              // 1. create a task
              Task task = taskService.newTask();
              task.setName("test execution");
              task.setOwner("josOwner");
              task.setAssignee("JosAssignee");
              taskService.saveTask(task);
  
              // 2. set task variables
              Map<String, Object> taskVariables = new HashMap<String, Object>();
              taskVariables.put("finishedAmount", 0);
              taskService.setVariables(task.getId(), taskVariables);
  
              // 3. complete this task with a new variable
              Map<String, Object> finishVariables = new HashMap<String, Object>();
              finishVariables.put("finishedAmount", 40);
              taskService.complete(task.getId(), finishVariables);
  
              // 4. get completed variable
              List<HistoricVariableInstance> hisVarList = historyService
                  .createHistoricVariableInstanceQuery()
                  .taskId(task.getId())
                  .list();
              assertThat(hisVarList).hasSize(1);
              assertThat(hisVarList.get(0).getValue()).isEqualTo(40);
  
              // Cleanup
              historyService.deleteHistoricTaskInstance(task.getId());
          }
      }
  }
  