Spring boot - integration testing - WebTestClient & HttpServletRequest - spring

Question

I'm having difficulties figuring this out.
I can mock almost everything but for some reason the HttpServletRequest is mocked but not injected into the #ControllerAdvice #ExceptionHandler method.
Any ideas? Thank you for your help in advance!
STR Repo with minimal plug and play test suite / code
https://github.com/krodyrobi/spring-integration-test-str
#Component
public class Config {
private final String url = "https://httpstat.us/";
public String getUrl() {
return url;
}
}
#RestControllerAdvice
public class GlobalExceptionHandler {
#ExceptionHandler(WebClientResponseException.class)
public ResponseEntity<String> handleException(HttpServletRequest request, WebClientResponseException ex) {
return new ResponseEntity<>(request.getRequestURL() + " " + ex.getResponseBodyAsString(), ex.getStatusCode());
}
}
#RestController
public class SomeController {
private final Config config;
#Autowired
public SomeController(Config config) {
this.config = config;
}
#GetMapping("/test")
public Mono<String> test() {
return WebClient
.create(config.getUrl())
.get()
.uri("/200")
.retrieve()
.bodyToMono(String.class);
}
}
#RunWith(SpringRunner.class)
#SpringBootTest(classes = {
SomeController.class,
GlobalExceptionHandler.class,
})
public class SomeControllerTest {
private final static String baseUrl = "http://localhost:9999/";
public #Rule WireMockRule wireMockRule = new WireMockRule(9999);
private #MockBean Config config;
private #MockBean HttpServletRequest request;
private WebTestClient webClient;
private #Autowired SomeController controller;
private #Autowired GlobalExceptionHandler exceptionHandler;
#Before
public void setUp() {
webClient = WebTestClient
.bindToController(controller)
.controllerAdvice(exceptionHandler)
.build();
when(config.getUrl()).thenReturn(baseUrl);
}
#Test
public void test_works() {
wireMockRule
.stubFor(get(urlEqualTo("/200"))
.willReturn(aResponse()
.withStatus(200)
.withHeader("Content-Type", "text/plain")
.withBody("200 MOCK")));
webClient
.get()
.uri("/test")
.exchange()
.expectStatus()
.isOk()
.expectBody(String.class)
.isEqualTo("200 MOCK");
wireMockRule.verify(getRequestedFor(urlMatching("/200")));
}
#Test
public void test_fails() {
// java.lang.IllegalStateException: No suitable resolver for argument 0
// of type 'javax.servlet.http.HttpServletRequest' on public
// org.springframework.http.ResponseEntity<java.lang.String>
// com.example.demo.GlobalExceptionHandler.handleException(
// javax.servlet.http.HttpServletRequest,
// ...client.WebClientResponseException
// )
wireMockRule
.stubFor(get(urlEqualTo("/200"))
.willReturn(aResponse()
.withStatus(404)
.withHeader("Content-Type", "text/plain")
.withBody("404 MOCK")));
webClient
.get()
.uri("/test")
.exchange()
.expectStatus()
.isNotFound()
.expectBody(String.class)
.isEqualTo("Http://localhost:8080/test 404 MOCK");
wireMockRule.verify(getRequestedFor(urlMatching("/200")));
}
}

Answer 1

Use below instead of HttpServletRequest
import org.springframework.http.server.reactive.ServerHttpRequest;
ServerHttpRequest request