如何在Java@SpringBootTest中使用MockMvc和MockRestServiceServer

我正在尝试编写一个@SpringBootTest，它将发出REST请求和模拟响应。我之所以想这样做，是因为我的spring应用程序接收REST请求，作为响应，它使用REST从另一个源获取信息。我希望通过启动REST GET（MockMvc）来触发我的应用程序，但也希望模拟其他源的响应（MockRestServiceServer）

以下是测试的净化版本，删除了我的应用程序：

import lombok.extern.slf4j.Slf4j;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.TestConfiguration;
import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Primary;
import org.springframework.http.MediaType;
import org.springframework.test.context.junit.jupiter.SpringExtension;
import org.springframework.test.web.client.MockRestServiceServer;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.web.client.RestTemplate;

import static org.hamcrest.Matchers.containsString;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import static org.springframework.test.web.client.match.MockRestRequestMatchers.requestTo;
import static org.springframework.test.web.client.response.MockRestResponseCreators.withSuccess;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

@Slf4j
@ExtendWith(SpringExtension.class)
@SpringBootTest
@AutoConfigureMockMvc
class RestTest {
    private static final String URI = "/my-test-uri";
    private static final String RESPONSE = "my-response";
    @Autowired
    private MockMvc mockMvc;

    @Test
    void testRest() throws Exception {
        log.info("Initiating request for GET {}", URI);
        mockMvc.perform(get(URI))
                .andExpect(status().isOk())
                .andExpect(content().string(containsString(RESPONSE)));
    }

    @TestConfiguration
    static class TestConfig {

        @Primary
        @Bean
        public RestTemplateBuilder restTemplateBuilder() {
            RestTemplate restTemplate = new RestTemplate();
            MockRestServiceServer server = MockRestServiceServer.createServer(restTemplate);
            server.expect(requestTo(URI))
                    .andRespond(withSuccess(RESPONSE, MediaType.APPLICATION_JSON));
            log.info("Mocking response to GET {}: {}", URI, RESPONSE);

            RestTemplateBuilder mockBuilder = mock(RestTemplateBuilder.class);
            when(mockBuilder.build()).thenReturn(restTemplate);
            return mockBuilder;
        }
    }
}

测试失败，因为它没有收到TestConfig.restTemplateBuilder中定义的响应。我同时提供REST请求程序（testRest（）方法）和REST响应程序（TestConfig.restTemplateBuilder）。我做错了什么

以下是失败的原因：

Status expected:<200> but was:<404>
Expected :200
Actual   :404
<Click to see difference>

java.lang.AssertionError: Status expected:<200> but was:<404>
    at org.springframework.test.util.AssertionErrors.fail(AssertionErrors.java:59)
    at org.springframework.test.util.AssertionErrors.assertEquals(AssertionErrors.java:122)
    at org.springframework.test.web.servlet.result.StatusResultMatchers.lambda$matcher$9(StatusResultMatchers.java:627)
    at org.springframework.test.web.servlet.MockMvc$1.andExpect(MockMvc.java:196)
    at com.mycompany.RestTest.testRest(RestTest.java:54)
...
    at java.base/java.lang.Thread.run(Thread.java:830)

状态应为：但为：
预计：200
实际：404
java.lang.AssertionError:状态应为：但为：
位于org.springframework.test.util.AssertionErrors.fail（AssertionErrors.java:59）
位于org.springframework.test.util.AssertionErrors.assertEquals（AssertionErrors.java:122）
位于org.springframework.test.web.servlet.result.StatusResultMatchers.lambda$matcher$9（StatusResultMatchers.java:627）
位于org.springframework.test.web.servlet.MockMvc$1.andExpect（MockMvc.java:196）
位于com.mycompany.restest.testRest（restest.java:54）
...
位于java.base/java.lang.Thread.run（Thread.java:830）

请发布您要完成的确切错误，提前感谢您的帮助