I would like to create Test for my rest controller:
#Controller
#RequestMapping("/v2/api/show/project")
public class ApiAccessController {
private final ApiAccessService apiAccessService;
#Autowired
ApiAccessController(ApiAccessService apiAccessService){
this.apiAccessService = apiAccessService;
}
#PutMapping(value = "/{id}/apikey")
public ResponseEntity<ApiKeyResponse> generateApiKey(#PathVariable("id")Long id, Principal principal) {
return apiAccessService.generateApiKey(id, principal.getName());
}
}
My test looks as follow:
#RunWith(SpringJUnit4ClassRunner.class)
public class ApiAccessControllerTest {
private MockMvc mockMvc;
Principal principal = new Principal() {
#Override
public String getName() {
return "TEST_PRINCIPAL";
}
};
#InjectMocks
ApiAccessController apiAccessController;
#Mock
ProjectRepository projectRepository;
#Before
public void setUp(){
mockMvc = MockMvcBuilders.standaloneSetup(apiAccessController).build();
}
#Test
public void testGenerateApiKey() throws Exception {
Project project = new Project();
project.setId((long) 1);
project.setName("test");
project.setDescription("testdesc");
project.setCiid("ciid");
when(projectRepository.save(any(Project.class))).thenReturn(project);
mockMvc.perform(MockMvcRequestBuilders.put("/v2/api/show/project/" + project.getId() +"/apikey").principal(principal))
.andExpect(MockMvcResultMatchers.status().isOk());
}
}
Which is ment to create project and then run generateApiKey on this project, however I get NullpointerException looking like mocked controller cannot find created entity
could anyone please point me in the right direction as I am just starting with testing?
You should mock ApiAccessService instead of ProjectRepository.
Have a look at the code:
#RunWith(SpringJUnit4ClassRunner.class)
public class ApiAccessControllerTest {
private MockMvc mockMvc;
private Principal principal = () -> "TEST_PRINCIPAL";
#InjectMocks
private ApiAccessController apiAccessController;
#Mock
private ApiAccessService apiAccessService;
#Before
public void setUp() {
mockMvc = MockMvcBuilders.standaloneSetup(apiAccessController).build();
}
#Test
public void testGenerateApiKey() throws Exception {
long id = 1L;
when(apiAccessService.generateApiKey(id, principal.getName())).thenReturn(new ApiKeyResponse(111L));
mockMvc.perform(MockMvcRequestBuilders.put("/v2/api/show/project/{id}/apikey", id).principal(principal))
.andExpect(MockMvcResultMatchers.status().isOk());
}
}
If you want to create integration test, that tests ApiAccessController -> ApiAccessService -> ProjectRepository integration you need to load your context (use for example #SpringBootTest).
Also you need to fix controller, use ResponseEntity.ok(...) :
#PutMapping(value = "/{id}/apikey")
public ResponseEntity<ApiKeyResponse> generateApiKey(#PathVariable("id") Long id, Principal principal) {
return ResponseEntity.ok(apiAccessService.generateApiKey(id, principal.getName()));
}
You can find really good examples of all test types in this repository MVC tests examples
The Mock you are creating is not referenced in the Controller. The Service you reference in the Controller is not part of your test setup. Therefore any access to the Service will cause a NullPointerException as the Service is not set.
Related
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());
}
}
I have a problem with testing the REST API using MOCKITO
I have an example of the rest controller code:
#RestController
#RequestMapping(path = "api/workers")
public class WorkOfferController {
#Autowired
private WorkerService workerService;
#PostMapping(value = "/lists", consumes = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity searchWorker(#RequestBody RecruitmentSearchRequest recruitmentSearchRequest, #RequestParam("page") int page, #RequestParam("size") int size,) throws NoSuchFieldException {
System.err.print('WorkerController');
return workerService.getWorkers(recruitmentSearchRequest, page, size);
}
}
And the right service for it:
#Service
#Transactional
#RequiredArgsConstructor(onConstructor = #__(#Autowired))
public class WorkerService {
private final WorkerRepistory workerRepository;
private final UserRepository userRepository;
public ResponseEntity getWorkers(RecruitmentSearchRequest recruitmentSearchRequest,int pageNumber, int size) throws NoSuchFieldException {
System.err.print('WorkerService');
...
}
}
I want to test whether everything is okay under the url with the right data. I do not want to use this database because I prefer Mockito.
#RunWith(SpringJUnit4ClassRunner.class)
#WebAppConfiguration
#SpringBootTest(classes = Appp2workApplication.class)
#FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class PharmacyWorkOfferRestDocsTests {
private MockMvc mockMvc;
#InjectMocks
private WorkOfferController workOfferController;
#Mock
private WorkerService workerService;
#Mock
UserRepository userRepository;
#Mock
WorkerRepistory workerRepository;
#Before
public void setUp() {
this.mockMvc = MockMvcBuilders.standaloneSetup(workOfferController).build();
}
#Test
public void searchWorkOfferListWithParameters() throws Exception {
String payload = "{\n" +
"\t\"name\":\"tomek\",\n" +
"\t\"searchFromSalary\":5,\n" +
"}";
Mockito.doNothing().when(userRepository.save(Mockito.anyObject()));
Mockito.when(searchService.getRecruitmentOfferJobListWithParameters(Mockito.anyObject())).thenReturn(list);
this.mockMvc.perform(post("/api/workers/lists?page=0&size=20").contentType(MediaType.APPLICATION_JSON).content(payload))
.andExpect(status().isOk());
}
}
And I have a problem that with this approach the test comes to me in the controller and displays "WorkerController" but I do not want to enter the service from this controller, and it returns 200, but it really only came to the controller and that's it. This is probably because WorkerService is as Mock but I tried to give it as eg Autowired or InjectMock and it is still the same.
What do I do wrong that I enter into the controller but I do not want to use this controller for the appropriate service?
I'm new to Zuul J-unit testing. I have a couple of filters which is ChangeRequestEntityFilter and SessionFilter, Where I pasted my filtercode below. Can someone tell me how to write a Junit for the filter. I've searched and trying to use MockWire for the unit testing(Also I pasted my empty methods with basic annotations and WireMock port). I need at-least one proper example how this J-unit for Zuul works. I've referred the http://wiremock.org/docs/getting-started/ doc. Where I got what to do, but not how to do.
public class ChangeRequestEntityFilter extends ZuulFilter {
#Autowired
private UtilityHelperBean utilityHelperBean;
#Override
public boolean shouldFilter() {
// //avoid http GET request since it does'nt have any request body
return utilityHelperBean.isValidContentBody();
}
#Override
public int filterOrder() {
//given priority
}
#Override
public String filterType() {
// Pre
}
#Override
public Object run() {
RequestContext context = getCurrentContext();
try {
/** get values profile details from session */
Map<String, Object> profileMap = utilityHelperBean.getValuesFromSession(context,
CommonConstant.PROFILE.value());
if (profileMap != null) {
/** get new attributes need to add to the actual origin microservice request payload */
Map<String, Object> profileAttributeMap = utilityHelperBean.getProfileForRequest(context, profileMap);
/** add the new attributes in to the current request payload */
context.setRequest(new CustomHttpServletRequestWrapper(context.getRequest(), profileAttributeMap));
}
} catch (Exception ex) {
ReflectionUtils.rethrowRuntimeException(new IllegalStateException("ChangeRequestEntityFilter : ", ex));
}
return null;
}
}
I know ,I'm asking more. But give me any simple working complete example, I'm fine with it.
My current code with basic annotations and WireMock port.
#RunWith(SpringRunner.class)
#SpringBootTest
#DirtiesContext
#EnableZuulProxy
public class ChangeRequestEntityFilterTest {
#Rule
public WireMockRule wireMockRule = new WireMockRule(8080);
#Mock
ChangeRequestEntityFilter requestEntityFilter;
int port = wireMockRule.port();
#Test
public void changeRequestTest() {
}
}
Have you tried #MockBean?
https://docs.spring.io/spring-boot/docs/current/api/org/springframework/boot/test/mock/mockito/MockBean.html
"When #MockBean is used on a field, as well as being registered in the application context, the mock will also be injected into the field. Typical usage might be:"
#RunWith(SpringRunner.class)
public class ExampleTests {
#MockBean
private ExampleService service;
#Autowired
private UserOfService userOfService;
#Test
public void testUserOfService() {
given(this.service.greet()).willReturn("Hello");
String actual = this.userOfService.makeUse();
assertEquals("Was: Hello", actual);
}
#Configuration
#Import(UserOfService.class) // A #Component injected with ExampleService
static class Config {
}
}
Here there is another approach:
private ZuulPostFilter zuulPostFilter;
#Mock
private anotherService anotherService;
#Mock
private HttpServletRequest request;
#Before
public void before() {
MockitoAnnotations.initMocks(this);
MonitoringHelper.initMocks();
zuulPostFilter = new ZuulPostFilter(anotherService);
doNothing().when(anotherService).saveInformation(null, false);
}
#Test
public void postFilterTest() {
log.info("postFilterTest");
RequestContext context = new RequestContext();
context.setResponseDataStream(new ByteArrayInputStream("Test Stream".getBytes()));
context.setResponseGZipped(false);
RequestContext.testSetCurrentContext(context);
when(request.getScheme()).thenReturn("HTTP");
RequestContext.getCurrentContext().setRequest(request);
ZuulFilterResult result = zuulPostFilter.runFilter();
assertEquals(ExecutionStatus.SUCCESS, result.getStatus());
assertEquals("post", zuulPostFilter.filterType());
assertEquals(10, zuulPostFilter.filterOrder());
}
In this case you can test the filter and mock the services inside it without having to autowire it, the problem with the #autowired is that if you have services inside the filter, then it is going to be an integration test that is going to be more difficult to implement.
I'm using SpringBoot 2 and Spring 5 (RC1) to expose reactive REST services. but I can't manage to write unit test for those controllers.
Here is my controller
#Api
#RestController
#RequestMapping("/")
public class MyController {
#Autowired
private MyService myService;
#RequestMapping(path = "/", method = RequestMethod.GET)
public Flux<MyModel> getPages(#RequestParam(value = "id", required = false) String id,
#RequestParam(value = "name", required = false) String name) throws Exception {
return myService.getMyModels(id, name);
}
}
myService is calling a database so I would like not to call the real one. (I don't wan't integration testing)
Edit :
I found a way that could match my need but I can't make it work :
#Before
public void setup() {
client = WebTestClient.bindToController(MyController.class).build();
}
#Test
public void getPages() throws Exception {
client.get().uri("/").exchange().expectStatus().isOk();
}
But I'm getting 404, seems it can't find my controller
You have to pass actual controller instance to bindToController method.
As you want to test mock environment, you'll need to mock your dependencies, for example using Mockito.
public class MyControllerReactiveTest {
private WebTestClient client;
#Before
public void setup() {
client = WebTestClient
.bindToController(new MyController(new MyService()))
.build();
}
#Test
public void getPages() throws Exception {
client.get()
.uri("/")
.exchange()
.expectStatus().isOk();
}
}
More test examples you can find here.
Also, I suggest switching to constructor-based DI.
I am using JUnit4 in my application where I tried to test a UserService, the current test case is simple:
Create a user named 'admin' and save it to the database.
The other test case will rely on this user.
So I use the BeforeClass to insert the record, however I have to use the UserService to save the user, but spring does not support to inject static fields.
When I tried to create the UserService manually, I found that I have to fill the dependencies myself, I wonder if there is an alternative? Or there is something wrong with how I use JUnit?
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration(locations = {"classpath:spring/application-config.xml"})
public class UserServiceTest {
#Rule
public final ExpectedException exception = ExpectedException.none();
#Autowired
private UserService userService;
//#Autowired // sprint does not suport this
private static UserService us;
private static User u;
#BeforeClass
public static void before() {
us = new UserServiceImpl(); // this UserService instance can not be used, since I have to fill the dependencies manually
us.clear();
u = new User();
u.setUsername("admin");
u.setPassword("pass");
us.save(u);
}
#AfterClass
public static void after() {
userService.delete(u.getId());
}
#Test
public void testQuery() {
List<User> list = userService.find();
assertEquals(1, list.size());
}
#Test
public void testChangePassword() {
userService.changePassword(u.getId(), u.getPassword(), "newpass");
assertEquals("newpass", userService.findOne(u.getId()).getPassword());
exception.expect(ResourceNotFoundException.class);
userService.changePassword("1", "32", "ss");
exception.expect(ResourceNotFoundException.class);
userService.changePassword(u.getId(), "32", "ss");
}
}