code: @Deployment public void testTaskPropertiesNotNull(){
    ProcessInstance processInstance=runtimeService.startProcessInstanceByKey("oneTaskProcess");
    Task task=taskService.createTaskQuery().singleResult();
    assertNotNull(task.getId());
    assertEquals("my task",task.getName());
    assertEquals("Very important",task.getDescription());
    assertTrue(task.getPriority() > 0);
    assertEquals("kermit",task.getAssignee());
    assertEquals(processInstance.getId(),task.getProcessInstanceId());
    assertNotNull(task.getProcessDefinitionId());
    assertNotNull(task.getTaskDefinitionKey());
    assertNotNull(task.getCreateTime());
    if (processEngineConfiguration.getHistoryLevel().isAtLeast(HistoryLevel.ACTIVITY)) {
      assertEquals(0,taskService.getTaskEvents(task.getId()).size());
    }
  }
  