处理程序调度失败；嵌套的异常为java.lang.AssertionError：预期没有其他请求：HTTP GET

Question

This is my Junit Test class

@Before
public void setup() {
this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac).build();
RestGatewaySupport gateway = new RestGatewaySupport();
gateway.setRestTemplate(restTemplate);
mockServer = MockRestServiceServer.createServer(gateway);
}
@Test
public void test_findFileActFileSearch_success() throws Exception{
    String inputUrl = "/hel/hel/xyz/xyzsearch";
        FileActSearchParams mockFileActSearchParams = new FileActSearchParams();
        mockFileActSearchParams.setGrpHeaderMsgId("xyz");
        mockFileActSearchParams.setMsgUsrRefFileAct("abcs");

        mockMvc.perform(get(inputUrl)
                .flashAttr("params", mockFileActSearchParams)).andDo(print()).andExpect(status().isOk())    
        .andExpect(view().name("ajaxSearchFileResponse"))
        .andExpect(model().attributeExists("arg"));     mockServer.verify();
    }

I am getting below exception

org.springframework.web.util.NestedServletException: Handler dispatch failed; nested exception is java.lang.AssertionError: No further requests expected: HTTP GET http://localhost:9966/hello?
0 request(s) executed.

此测试用例用于一个内部调用API的带有MVC注释的Controller。 API从邮递员那里正常工作。但是从Test类中，它给出了以下异常

java.lang.AssertionError的原因是什么

我需要HLP。预先感谢