[英]Mockbean would not throw an error when called inside the test subject class
似乎返回void的模拟bean在测试对象内部被调用时不会引发错误。 我可以在外面调用它,这会引发错误。 我的使用方式有问题吗?
//some imports ...
@RunWith(SpringRunner.class)
@SpringBootTest(classes={ MessagingController.class })
public class MessagingControllerTest {
@Autowired
private MessagingController controller;
@MockBean
private RabbitMessagingTemplate rabbitMessagingTemplate;
@Test
public void testPublishMessageConversionException() {
//given:
Message message = new Message(null, null, null);
//when:
doThrow(MessageConversionException.class).when(rabbitMessagingTemplate).convertAndSend(any());
ResponseEntity<?> response = controller.publish(message);
// rabbitMessagingTemplate.convertAndSend() // this throws the error
//then:
assertThat(response).isNotNull();
assertThat(response.getStatusCode()).isEqualTo(HttpStatus.BAD_REQUEST);
verify(rabbitMessagingTemplate).convertAndSend(message.getExchange(), message.getRoutingKey(), message.getPayload());
}
...
}
如果您只是想进行单元测试,为什么还要使用整个spring环境? 在我看来,SpringRunner对于集成和e2e测试非常有用,但是对于单元测试,您应该坚持使用MockitoJUnitRunner。 这样的事情应该起作用:
@RunWith(MockitoJUnitRunner.class)
public class MessagingControllerTest {
@Mock
private RabbitMessagingTemplate rabbitMessagingTemplate;
@InjectMocks
private MessagingController controller;
@Test
public void testPublishMessageConversionException() {
//given:
Message message = mock(Message.class);
//when:
when(rabbitMessagingTemplate.convertAndSend(anyObject()).thenThrow(new MessageConversionException());
try {
ResponseEntity<?> response = controller.publish(message);
fail();
} catch (MessageConversionException mce) {
//then:
assertThat(response).isNotNull();
assertThat(response.getStatusCode()).isEqualTo(HttpStatus.BAD_REQUEST);
verify(rabbitMessagingTemplate, times(1)).convertAndSend(message.getExchange(), message.getRoutingKey(), message.getPayload());
}
}
...
}
似乎该模拟豆没有以某种方式正确地存根。 我必须使用特定的参数。 @Rozart还建议使用做异常断言http://joel-costigliola.github.io/assertj/assertj-core-features-highlight.html#exception-assertion
这是工作中的一个:
@Test
public void testPublishMessageConversionException() {
//given:
Message message = new Message("", "", "");
//when:
doThrow(MessageConversionException.class).when(rabbitMessagingTemplate).convertAndSend("","","");
assertThatThrownBy(() -> { controller.publish(message); }).isInstanceOf(IllegalArgumentException.class)
.hasMessageContaining("Unable to convert payload");
}
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