assertNotNull(processInstanceId);
// 创建任务查询
TaskQuery taskQuery = taskService.createTaskQuery();
// 查找 1200119390 的这个流程实例的当前独占任务
List<TaskInstance> taskInstances = taskQuery.taskAssignee("1200119390").processInstanceId(processInstanceId).taskNotEnd().list();
//验证此时的独占任务为1
assertEquals(taskInstances.size(), 1);
TaskInstance taskInstance = taskInstances.get(0);
String nodeId = taskInstance.getNodeId();
assertEquals(nodeId, "UserTask_2");