I am trying to use
junit.jupiter.execution.parallel.mode.default=concurrent
along with #MockBean from Spring Boot. However, the tests starts to fail when I set to concurrent mode. I tried setting
#MockBean(reset = MockReset.NONE)
However, it also does not help. Seems like mocked bean is reinitialized / reset even though MockReset.NONE is set.
Is that possible to use #MockBean allow with concurrent mode or is it a known limitation?
Bean I am mocking:
#Service
public class SampleService {
public Mono<String> processCall(String call) {
return Mono.just("ok");
}
}
The controller I am testing:
#RestController
#RequiredArgsConstructor
public class SampleController {
private final SampleService sampleService;
#PostMapping("/call")
public Mono<String> processCall(#RequestBody String body) {
return sampleService.processCall(body);
}
}
And tests:
#ExtendWith(SpringExtension.class)
#WebFluxTest(SampleController.class)
#ContextConfiguration(classes = {SampleController.class})
class SampleTest {
#MockBean(reset = MockReset.NONE)
private SampleService sampleService;
#Autowired
private WebTestClient webTestClient;
#Test
void givenSampleServiceWorksFineExpectOkResponse() {
String randomBody = "1234";
when(sampleService.processCall(randomBody)).thenReturn(Mono.just("ok"));
callService(randomBody).expectStatus().isOk().expectBody(String.class).isEqualTo("ok");
}
#Test
void givenSampleServiceFailedExpectErrorResponse() {
String randomBody = "9876";
when(sampleService.processCall(randomBody))
.thenReturn(Mono.error(new RuntimeException("error")));
callService(randomBody).expectStatus().is5xxServerError();
}
private ResponseSpec callService(String body) {
return webTestClient
.post()
.uri(
uriBuilder ->
uriBuilder
.path("/call")
.build())
.bodyValue(body)
.exchange();
}
}
I set concurrent mode for Jupiter in file junit-platform.properties:
junit.jupiter.execution.parallel.enabled=true
junit.jupiter.execution.parallel.mode.default=concurrent
junit.jupiter.execution.parallel.config.strategy=dynamic
Related
I want to test my Spring controller using #WebFluxTest(MyController.class)
My test :
#WebFluxTest({MyController.class})
class MyControllerTest {
#MockBean
private MyService myService;
#Autowired
private WebTestClient client;
#Test
void myTest() {
List<Integer> list = List.of(1,2,3);
Page<Integer> expected = new PageImpl<>(list);
String buCode = TestUtils.getRandomString();
when(myService.method(
any(), // Pageable
anyString()
)).thenReturn(Mono.just(expected));
client.get()
.uri("/path?arg=test")
.exchange()
.expectStatus()
.isOk();
}
}
My controller
#RestController
#RequestMapping("path")
#AllArgsConstructor
public class MyController {
private MyService myService;
#GetMapping
Mono<Page<Integer>> searchSeller(
Pageable pageable,
#RequestParam(required = false) String arg
) {
return myService.search(pageable, arg);
}
}
But I have this exception when I execute my test :
No primary or default constructor found for interface org.springframework.data.domain.Pageable
I think the solution is maybe to register the org.springframework.data.web.ReactivePageableHandlerMethodArgumentResolver but I don't know how to register it into the WebTestClient
Have you some clues to fix this issue ?
I am having dificulties with using MockMvc.
Here I have simple Service and controller classes:
Service:
#Slf4j
#Service
public class EmployeeService {
//...
public Employee GetSample() {
//...
//filling Employee Entities
return new Employee(
"Harriet"
, "random"
, 25);
}
}
controller:
#RestController
#RequestMapping(value = "/info")
#RequiredArgsConstructor(onConstructor = #__(#Autowired))
#Validated
public class EmployeeController {
private final EmployeeService employeeService;
#PostMapping("/GetEmployee")
public ResponseEntity<Employee> GetEmployee() {
Employee employee = employeeService.GetSample();
return new ResponseEntity<>(employee, HttpStatus.OK);
}
}
Test:
#RunWith(SpringJUnit4ClassRunner.class)
#SpringBootTest
public class EmployeeTestCase {
private MockMvc mockMvc;
#InjectMocks
private EmployeeController EmployeeController;
#Mock
private EmployeeService employeeService;
#Before
public void setUp() {
this.mockMvc = MockMvcBuilders.standaloneSetup(employeeController).build();
}
#Test
public void getEmployee() throws Exception {
this.mockMvc.perform(MockMvcRequestBuilders.post("/info/GetEmployee")).andDo(print());
}
}
when I try to use MockMvc I get null body. It seems employee is null. But I didn't understand why.
I thought that when test uses perform, it should initialise employee and later on it should't be null.
I tried to cut the code as much as possible. I hope it is not long.
Note : also tried to use Mockito.when(employeeController.GetEmployee()).thenCallRealMethod();
The #SpringBootTest annotation loads the complete Spring application
context. That means you do not mock your layers
(Services/Controllers).
If you wanted to test specific layers of your application, you could look into test slice annotations offered by Springboot: https://docs.spring.io/spring-boot/docs/current/reference/html/test-auto-configuration.html
In contrast, a test slice annotation only loads beans required to test a particular layer. And because of this, we can avoid unnecessary mocking and side effects.
An example of a Test Slice is #WebMvcTest
#ExtendWith(SpringExtension.class)
#WebMvcTest(controllers = HelloController.class,
excludeFilters = {
#ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, classes = SecurityConfig.class)
}
)
public class HelloControllerTest {
#Autowired
private MockMvc mvc;
#Test
public void hello() throws Exception {
String hello = "hello";
mvc.perform(get("/hello"))
.andExpect(status().isOk())
.andExpect(content().string(hello));
}
#Test
public void helloDto() throws Exception {
String name = "hello";
int amount = 1000;
mvc.perform(
get("/hello/dto")
.param("name", name)
.param("amount", String.valueOf(amount)))
.andExpect(status().isOk())
.andExpect(jsonPath("$.name", is(name)))
.andExpect(jsonPath("$.amount", is(amount)));
}
}
However if you really wanted to load up the SpringBoot Application context, say for an Integration Test, then you have a few options:
#SpringBootTest
#AutoConfigureMockMvc
public class TestingWebApplicationTest {
#Autowired
private MockMvc mockMvc;
#Test
public void shouldReturnDefaultMessage() throws Exception {
this.mockMvc.perform(get("/")).andDo(print()).andExpect(status().isOk())
.andExpect(content().string(containsString("Hello, World")));
}
}
#RunWith(SpringJUnit4ClassRunner.class)
#SpringBootTest
public class AuctionControllerIntTest {
#Autowired
AuctionController controller;
#Autowired
ObjectMapper mapper;
MockMvc mockMvc;
#Before
public void setUp() throws Exception {
System.out.println("setup()...");
mockMvc = MockMvcBuilders.standaloneSetup(controller).build();
}
#Test
public void create_ValidAuction_ShouldAddNewAuction() throws Exception {
final Auction auction = new Auction(
"Standing Desk",
"Stand up desk to help you stretch your legs during the day.",
"Johnnie34",
350.00);
mockMvc.perform(post("/auctions")
.contentType(MediaType.APPLICATION_JSON)
.content(toJson(auction)))
.andExpect(status().isCreated());
}
}
Lets say you don't want to load up any layers at all, and you want to mock everything, such as for example a Unit Test:
#RunWith(MockitoJUnitRunner.class)
class DemoApplicationTest {
#Mock
private UserRepository userRepository;
private Demo noneAutoWiredDemoInstance;
#Test
public void testConstructorCreation() {
MockitoAnnotations.initMocks(this);
Mockito.when(userRepository.count()).thenReturn(0L);
noneAutoWiredDemoInstance = new Demo(userRepository);
Assertions.assertEquals("Count: 0", noneAutoWiredDemoInstance.toString());
}
}
Im currently writing integration test for SpringBoot Application .
It's functionality is to receive/send request from outside and forward/receive them to another application(APP_2). So there are two systems which needs to be mocked outside System and APP_2 .
HomeController
#Controller
public class HomeController {
#Autowired
ForwardController forwardController;
#RequestMapping("/")
public #ResponseBody
String greeting() {
return forwardController.processGET().toString();
}
}
ForwardController
#Service
public class ForwardController {
#Autowired
private RestTemplate restTemplate;
#Autowired
private Environment environment;
private ResponseEntity sendRequest(String url, HttpMethod method, HttpEntity requestEntity, Class responseType, Object... uriVariables) {
return restTemplate.exchange( url, method, requestEntity, responseType,uriVariables);
}
public ResponseEntity processGET()
{
HttpHeaders headers = new HttpHeaders();
headers.set("Accept", MediaType.APPLICATION_JSON_VALUE);
HttpEntity<?> entity = new HttpEntity<>(headers);
String app_2_url = environment.getProperty(Constants.APP_2_URL);
ResponseEntity<String> response = sendRequest(app_2_url,HttpMethod.GET,entity,String.class);
return response;
}
}
APP_2_CONTROLLER
#Controller
public class App_2_Controller {
#RequestMapping("/app2Stub")
public #ResponseBody
String greeting() {
return "Hello End of world";
}
}
Test Class which simulates the external request behavior to the system:
HTTP_request_Test
#RunWith(SpringRunner.class)
#ActiveProfiles("test")
#SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT,classes = Application.class)
public class HttpRequestTest {
#LocalServerPort
private int port;
#Autowired
private TestRestTemplate restTemplate;
#Autowired
private Environment environment;
#Test
public void greetingShouldReturnDefaultMessage() throws Exception {
assertThat(this.restTemplate.getForObject("http://localhost:" + port + "/",
String.class)).contains("Hello End of world");
}
}
Here in this test class I'm overriding the properties by having two property file. So when we run test the request would be sent to App_2_Controller ( Mock in my project ) rather than the real App .
QUESTION :
Is there any way to have the APP_2_CONTROLLER inside the test folder ? This is because I don't want to expose the unwanted test endpoint in my Actual application .
Here in the above project , Im changing the URL with properties. Is there a better way to put a controller for the same URL. For simplicity sake lets assume, app_2 url is app.com:9000/serve
Spring already comes with a MockRestServiceServer, that makes this a lot easier so that you don't have to create your own dummy controllers (App_2_Controller). So in your case, you can remove that controller, and write a test like this for ForwardController:
#RunWith(SpringRunner.class)
#SpringBootTest
#ActiveProfiles("test")
public class ForwardControllerTest {
#Autowired
private RestTemplate restTemplate;
#Autowired
private ForwardController forwardController; // Your service
private MockRestServiceServer server;
#Before
public void setUp() {
server = MockRestServiceServer.bindTo(restTemplate).build();
}
#Test
public void processGet_returnsResponseFromAPI() {
server.expect(once(), requestTo("http://app.com:9000/serve"))
.andExpect(method(HttpMethod.GET))
.andRespond(withSuccess("Hello End of world", MediaType.TEXT_PLAIN));
assertThat(forwardController.processGET().getBody()).isEqualTo("Hello End of world"));
}
}
Additionally, you can create a separate test for your actual controller (ForwardController is just a service), mock ForwardController and use MockMvc:
#RunWith(SpringRunner.class)
#WebMvcTest
public class HomeControllerTest {
#Autowired
private HomeController homeController;
#Autowired
private MockMvc mockMvc;
#MockBean
private ForwardController forwardController;
#Test
public void greeting_usesForwardController() {
when(forwardController.expectGET()).thenReturn("Hello End of world");
mockMvc.perform(get("/"))
.andExpect(status().isOk())
.andExpect(content().string(containsString("Hello End of world")));
}
}
In this case, you'll end up with two tests:
One test to verify that RestTemplate is used to capture the proper response from your external REST API.
Another test to verify that HomeController just forwards whatever ForwardController responds.
I want to write a simple test using #RestClientTest for the component below (NOTE: I can do it without using #RestClientTest and mocking dependent beans which works fine.).
#Slf4j
#Component
#RequiredArgsConstructor
public class NotificationSender {
private final ApplicationSettings settings;
private final RestTemplate restTemplate;
public ResponseEntity<String> sendNotification(UserNotification userNotification)
throws URISyntaxException {
// Some modifications to request message as required
return restTemplate.exchange(new RequestEntity<>(userNotification, HttpMethod.POST, new URI(settings.getNotificationUrl())), String.class);
}
}
And the test;
#RunWith(SpringRunner.class)
#RestClientTest(NotificationSender.class)
#ActiveProfiles("local-test")
public class NotificationSenderTest {
#MockBean
private ApplicationSettings settings;
#Autowired
private MockRestServiceServer server;
#Autowired
private NotificationSender messageSender;
#Test
public void testSendNotification() throws Exception {
String url = "/test/notification";
UserNotification userNotification = buildDummyUserNotification();
when(settings.getNotificationUrl()).thenReturn(url);
this.server.expect(requestTo(url)).andRespond(withSuccess());
ResponseEntity<String> response = messageSender.sendNotification(userNotification );
assertThat(response.getStatusCode()).isEqualTo(HttpStatus.OK);
}
private UserNotification buildDummyUserNotification() {
// Build and return a sample message
}
}
But i get error that No qualifying bean of type 'org.springframework.web.client.RestTemplate' available. Which is right of course as i havn't mocked it or used #ContextConfiguration to load it.
Isn't #RestClientTest configures a RestTemplate? or i have understood it wrong?
Found it! Since i was using a bean that has a RestTemplate injected directly, we have to add #AutoConfigureWebClient(registerRestTemplate = true) to the test which solves this.
This was in the javadoc of #RestClientTest which i seem to have ignored previously.
Test which succeeds;
#RunWith(SpringRunner.class)
#RestClientTest(NotificationSender.class)
#ActiveProfiles("local-test")
#AutoConfigureWebClient(registerRestTemplate = true)
public class NotificationSenderTest {
#MockBean
private ApplicationSettings settings;
#Autowired
private MockRestServiceServer server;
#Autowired
private NotificationSender messageSender;
#Test
public void testSendNotification() throws Exception {
String url = "/test/notification";
UserNotification userNotification = buildDummyUserNotification();
when(settings.getNotificationUrl()).thenReturn(url);
this.server.expect(requestTo(url)).andRespond(withSuccess());
ResponseEntity<String> response = messageSender.sendNotification(userNotification );
assertThat(response.getStatusCode()).isEqualTo(HttpStatus.OK);
}
private UserNotification buildDummyUserNotification() {
// Build and return a sample message
}
}
I'm trying to #MockBean a #Repository annotated class:
#Repository
public interface ApplicationDao extends MongoRepository<Application, String> {}
I'm injecting it into a #Service annotated class:
#Service
public class AuthorizationService {
private ApplicationDao appsDao;
private List<Application> allowedApplications;
#Autowired
public AuthorizationService(ApplicationDao appsDao) {
this.appsDao = appsDao; //<<MOCKED INJECTED BEAN>>
this.fillApplications();
}
private void fillApplications() {
this.appsDao.findAll() //<<MOCKED method>>
.forEach(entry -> {
this.allowedApplications.put(entry.getName(), entry);
});
}
public bool isAuthorized(Application application) {
return this.allowedApplications
.stream()
.anyMatch(app -> app.getId().equals(application.getId()));
}
}
My test mocking configuration looks like:
#RunWith(SpringRunner.class)
#SpringBootTest()
public class GroupReferencesTest {
private #Autowired AuthorizationService;
private #MockBean ApplicationDao applicationDao;
#Before
public void setUp() {
Application testApplication = new Application();
testApplication.setName("test-application");
List<Application> allowedApplications = new ArrayList<Application>();
allowedApplications.add(testApplication);
Mockito
.when(this.applicationDao.findAll())
.thenReturn(allowedApplications);
}
#Test
public void test() {
Application app = new Application();
app.getId("test-application");
assertTrue(this.authorizationService.isAuthorized(app)); //<<FAILS>>
}
}
Nevertheless, my mocked object is not injected. I mean, when my AuthorizationService calls its injected ApplicationDao is returns an empty list instead of my mocked list.
I've tried to use #MockBean(name="applicationDao") as well. The behavior is the same.
I've also tried to configure my mocked bean using this code:
#TestConfiguration
public class RestTemplateTestConfiguration {
#Bean("applicationDao")
#Primary
public static ApplicationDao mockApplicationDao() {
ApplicationDao mock = Mockito.mock(ApplicationDao.class);
Application testApplication = new Application();
testApplication.setName("test-application");
List<Application> allowedApplications = new ArrayList<Application>();
allowedApplications.add(testApplication);
Mockito
.when(mock.findAll())
.thenReturn(allowedApplications);
return mock;
}
}
However, it doesn't works right.
Application class is:
public class Application {
private String id;
//setters & getters
}
Any ideas?
First things first - the type of test. Answer: Unit test.
You are starting Spring context that manages a lifecycle of AuthorizationService and then you are trying to inject mock. What really happens is that Spring IoC container is injecting a real ApplicationDao (the one managed by Spring IoC container) into the AuthorizationService.
Solution:
Manage lifecyle of AuthorizationService by your test runner (like MockitoJUnitRunner and inject ApplicationDao mock into it):
#RunWith(MockitoJUnitRunner.class)
public class GroupReferencesTest {
private #InjectMocks AuthorizationService authorizationService;
private #Mock ApplicationDao applicationDao;
#Before
public void setUp() {
Application testApplication = new Application();
testApplication.setName("test-application");
List<Application> allowedApplications = new ArrayList<Application>();
allowedApplications.add(testApplication);
Mockito
.when(this.applicationDao.findAll())
.thenReturn(allowedApplications);
}
#Test
public void test() {
Application app = new Application();
app.getId("test-application");
assertTrue(this.authorizationService.isAuthorized(app));
}
}
Working example
#RunWith(SpringRunner.class)
#SpringBootTest(classes = {AuthorizationService.class})
public class GroupReferencesTest {
#Autowired
private AuthorizationService;
#MockBean
private ApplicationDao applicationDao;
#Test
public void test() {
//given
Mockito.when(applicationDao.findAll()).thenReturn(emptyList());
//when & then
assertTrue(authorizationService.isAuthorized(app));
}
}