Spring - 如何使用ApplicationEventPublisher依赖项测试Controller（） _application

今日长缨在手，何时缚住苍龙。这篇文章主要讲述Spring - 如何使用ApplicationEventPublisher依赖项测试Controller？相关的知识，希望能为你提供帮助。
【Spring - 如何使用ApplicationEventPublisher依赖项测试Controller（）】我有一个发布活动的Controller

@RestController public class Controller { @Autowired private ApplicationEventPublisher publisher; @GetMapping("/event") public void get() { publisher.publishEvent(new Event()); } }

现在我想测试该事件是否已发布。首先，我尝试@MockBean ApplicationEventPublisher并验证方法调用。但根据https://jira.spring.io/browse/SPR-14335，这不起作用
所以我这样做：

@RunWith(SpringRunner.class) @WebMvcTest(controllers = Controller.class) public class ControllerTest { @Autowired private MockMvc mockMvc; @Test public void getTest() throws Exception { this.mockMvc.perform(get("/").contentType(MediaType.APPLICATION_JSON) .andExpect(status().isOk()); assertNotNull(Listener.event); }@TestConfiguration static class Listener { public static Event event; @EventListener void listen ( Event incoming ) { event = incoming; } } }

这种常见用例有更简单的方法吗？
答案你可以这样做

@RunWith(SpringRunner.class) public class ControllerTest {private MockMvc mockMvc; @MockBean private ApplicationEventPublisher publisher; @Before public void setup() { Controller someController= new Controller(publisher); mockMvc = MockMvcBuilders.standaloneSetup(someController).build(); }@Test public void getTest() throws Exception { ArgumentCaptor< Event> argumentCaptor = ArgumentCaptor.forClass(Event.class); doAnswer(invocation -> { Event value = https://www.songbingjia.com/android/argumentCaptor.getValue(); //assert if event is correct return null; }).when(publisher).publishEvent(argumentCaptor.capture()); this.mockMvc.perform(get("/").contentType(MediaType.APPLICATION_JSON)) .andExpect(status().isOk()); verify(publisher, times(1)).publishEvent(any(Event.class)); }}

并且还在控制器类中将Field Injection更改为Constructor Injection（这是一个很好的做法）。

@RestController public class Controller {private ApplicationEventPublisher publisher; @Autowired public Controller(ApplicationEventPublisher publisher) { this.publisher = publisher; } .... }