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.engine.test.history;
  
  import static org.assertj.core.api.Assertions.assertThat;
  
  import org.activiti.engine.history.HistoricTaskInstance;
  import org.activiti.engine.impl.test.PluggableActivitiTestCase;
  import org.activiti.engine.runtime.ProcessInstance;
  import org.activiti.engine.task.Task;
  import org.activiti.engine.test.Deployment;
  
  /**
  
   */
  public class HistoricTaskInstanceUpdateTest extends PluggableActivitiTestCase {
  
      @Deployment
      public void testHistoricTaskInstanceUpdate() {
          runtimeService.startProcessInstanceByKey("HistoricTaskInstanceTest").getId();
  
          Task task = taskService.createTaskQuery().singleResult();
  
          // Update and save the task's fields before it is finished
          task.setPriority(12345);
          task.setDescription("Updated description");
          task.setName("Updated name");
          task.setAssignee("gonzo");
          taskService.saveTask(task);
  
          taskService.complete(task.getId());
          assertThat(historyService.createHistoricTaskInstanceQuery().count()).isEqualTo(1);
  
          HistoricTaskInstance historicTaskInstance = historyService.createHistoricTaskInstanceQuery().singleResult();
          assertThat(historicTaskInstance.getName()).isEqualTo("Updated name");
          assertThat(historicTaskInstance.getDescription()).isEqualTo("Updated description");
          assertThat(historicTaskInstance.getAssignee()).isEqualTo("gonzo");
          assertThat(historicTaskInstance.getTaskDefinitionKey()).isEqualTo("task");
  
          // Validate fix of ACT-1923: updating assignee to null should be
          // reflected in history
          ProcessInstance secondInstance = runtimeService.startProcessInstanceByKey("HistoricTaskInstanceTest");
  
          task = taskService.createTaskQuery().singleResult();
  
          task.setDescription(null);
          task.setName(null);
          task.setAssignee(null);
          taskService.saveTask(task);
  
          taskService.complete(task.getId());
          assertThat(
              historyService.createHistoricTaskInstanceQuery().processInstanceId(secondInstance.getId()).count()
          ).isEqualTo(1);
  
          historicTaskInstance = historyService
              .createHistoricTaskInstanceQuery()
              .processInstanceId(secondInstance.getId())
              .singleResult();
          assertThat(historicTaskInstance.getName()).isNull();
          assertThat(historicTaskInstance.getDescription()).isNull();
          assertThat(historicTaskInstance.getAssignee()).isNull();
      }
  }
  