Custom Spring Security Filter Test with MockMvc always returns 404 - spring-boot

Question

I am trying to test a custom filter using MockMvc and it always returns status 404 instead of the actual status returned from the filter class.
The filter class looks as follows:
public class CustomFilter extends GenericFilterBean {
#Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain chain)
throws IOException, ServletException {
HttpServletRequest request = (HttpServletRequest) servletRequest;
// some logic
chain.doFilter(servletRequest, servletResponse);
}
}
This is registered in with the SpringBootApplication using FilterRegistrationBean
#SpringBootApplication
public class MyApplication {
public static void main(String[] args) {
try {
ConfigurableApplicationContext ctx = SpringApplication.run(MyApplication.class, args);
} catch (Throwable e) {
}
#Bean
public FilterRegistrationBean<CustomFilter> customFilter() {
FilterRegistrationBean<CustomFilter> filterRegistration = new FilterRegistrationBean<>();
filterRegistration.setFilter(new CustomFilter());
filterRegistration.addUrlPatterns("/test/*");
return filterRegistration;
}
}
The test for this is written as follows:
#RunWith(SpringRunner.class)
#SpringBootTest(CustomFilter.class)
#EnableAutoConfiguration
#WebAppConfiguration
public class CustomFilterTest {
#Autowired
private CustomFilter filter;
#Autowired
private WebApplicationContext context;
private MockMvc mvc;
#Before
public void setup() {
this.mvc = MockMvcBuilders.webAppContextSetup(context)
.addFilters(filter)
.build();
}
#Test
public void testCustomFilter() throws Throwable {
MockHttpServletRequestBuilder request = MockMvcRequestBuilders
.request(HttpMethod.POST, "/resource/abc")
.header("SomeHeader", "xxx")
.content("{}");
MockHttpServletResponse response = mvc.perform(request).andReturn().getResponse();
assertEquals(response.getStatus(), HttpServletResponse.SC_CONTINUE);
}
}
The assertion always returns the status value of 404.
Am I missing something here?

Answer 1

Add urlPatterns to the addFilter(filter, "/resource/abc") and add a test controller for the above code snippet as follows:
#RestController
public class TestController {
#PostMapping("/resource/abc")
public void testSecureEndpoint() {
}
}