I have a custom ConstraintValidator:
#Component
public class FooValidator implements ConstraintValidator<FooAnnotation, String> {
#Inject
private FooRepository fooRepository;
#Override
public void initialize(FooAnnotation foo) {
}
#Override
public boolean isValid(String code, ConstraintValidatorContext context) {
Foo foo = fooRepository.findByCode(code);
//My code
}
}
In my Junit tests and MockMVC I call the url but fooRepository bean validator is always null.
How I can inject it in my test controller? I tried to create a mock repository but it is also null.
My source code test:
public class FooControllerTest {
#InjectMocks
private FooController fooController;
private MockMvc mockMvc;
#Before
public void setup() {
// Process mock annotations
MockitoAnnotations.initMocks(this);
// Setup Spring test in standalone mode
this.mockMvc = MockMvcBuilders.standaloneSetup(fooController)
.setCustomArgumentResolvers(new PageableHandlerMethodArgumentResolver())
.build();
}
#Test
public void testSave() throws Exception {
Foo foo = new Foo();
// given
//My code...
// when
// then
// with errors
this.mockMvc.perform(post("/foo/update")
.param("name", "asdfasd")
.sessionAttr("foo", foo))
.andExpect(model().hasErrors())
.andExpect(model().attributeHasFieldErrors("foo", "name"));
}
}
You should add a #ContextConfiguration to your test, among other things.
Related
Im trying to test a controller, Author Controller, which returns a view with a model. The problem is on the testInitUpdateAuthor() test where its not able to find the model or attribute name specifically. All other methods are fine with their model/attribute tests.
Any advice?
#Slf4j
#Controller
public class AuthorController {
private final AuthorService authorService;
private final String CREATEORUPDATEFORM = "author/createOrUpdateAuthor";
public AuthorController(AuthorService authorService) {
this.authorService = authorService;
}
#GetMapping("/author/{id}/update")
public String updateAuthor(#PathVariable("id") Long id, Model model) {
model.addAttribute("author", authorService.findById(id));
return CREATEORUPDATEFORM;
}
#ExtendWith(MockitoExtension.class)
#SpringBootTest
class AuthorControllerTest {
MockMvc mockMvc;
#Mock
AuthorService authorService;
#InjectMocks
AuthorController authorController;
#BeforeEach
void setUp() {
mockMvc = MockMvcBuilders.standaloneSetup(authorController).build();
}
#Test
void getIndex() throws Exception {
mockMvc.perform(get("/author/index"))
.andExpect(status().isOk())
.andExpect(view().name("author/index"))
.andExpect(model().attributeExists("authors"));
}
#Test
void testInitUpdateAuthor() throws Exception {
when(authorService.findById(anyLong())).thenReturn(Author.builder().id(1L).build());
mockMvc.perform(get("/author/1/update"))
.andExpect(status().isOk())
.andExpect(view().name("author/createOrUpdateAuthor"))
.andExpect(model().attributeExists("author"));
}
}
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 set up following pact contract provider test
#RunWith(SpringRestPactRunner.class)
#Provider("structures")
#PactFolder("pacts")
#VerificationReports({"console", "markdown"})
#SpringBootTest
public class ContractTest {
#MockBean
private MyServiceImpl myServiceImpl;
#Autowired
private MyController myController;
#Configuration
public static class TestConfiguration {
#Bean
public MyController myController() {
return new MyController();
}
}
#TestTarget
public final MockMvcTarget target = new MockMvcTarget();
#Before
public void setup() {
MockitoAnnotations.initMocks(this);
target.setControllers(myController);
}
#State("My state")
public void setupDocumentWithStructures() {
Mockito.when(myService.getStructuresByDocumentId(
ArgumentMatchers.eq("1"),
ArgumentMatchers.any()
)).thenReturn(new PageImpl<>(Arrays.asList(
Structure.of("first"),
Structure.of("second")
)));
}
}
Running the test results in:
java.lang.AssertionError:
0 - Request processing failed; nested exception is java.lang.IllegalStateException: No primary or default constructor found for interface org.springframework.data.domain.Pageable
java.lang.IllegalStateException: No primary or default constructor found for interface org.springframework.data.domain.Pageable
The method getStructuresByDocumentId expects a Pageable object as its second argument. Changing the annotation #SpringBootTest to
#WebMvcTest(MyController.class)
#EnableSpringDataWebSupport
Doesn't solve the problem. Any ideas, how to solve this issue?
you used "myService" in your setupDocumentWithStructures whereas your #MockBean is myServiceImpl.......I think you meant to use myServiceImpl in setupDocumentWithStructures
That's how it can work
#Before
public void setupOrInit() {
this.mockMvc = MockMvcBuilders.standaloneSetup(controller)
.setControllerAdvice(new ErrorRequestInterceptor(tracer))
.setCustomArgumentResolvers(new PageableHandlerMethodArgumentResolver())
.build();
}
I was having the same problem and fixed setting a new mockMvc like this
#Before
public void before() {
MockitoAnnotations.initMocks(this);
target.setMockMvc(MockMvcBuilders.standaloneSetup(myController)
.setCustomArgumentResolvers(new PageableHandlerMethodArgumentResolver())
.build());
}
I am not using #SpringBootTest as you are, but I think in this case it does not matter. Below is my entire (redacted) code.
#RunWith(SpringRestPactRunner.class)
#Provider("my-provider")
#PactBroker(url = "https://pact-broker.my-compnay.com")
public class MyControllerProviderContractTest {
#TestTarget
public final MockMvcTarget target = new MockMvcTarget();
#Mock
private MyService myService;
#InjectMocks
private MyController myController = new MyController();
#Before
public void before() {
MockitoAnnotations.initMocks(this);
target.setMockMvc(MockMvcBuilders.standaloneSetup(myController)
.setCustomArgumentResolvers(new PageableHandlerMethodArgumentResolver())
.build());
}
#State("my state")
public void stateForMyMethod() {
//my mocks
}
}
I hope this helps, I spend a few hours trying to solve this.
Cheers
I have problem with mockito method: when(...). When I test:
afterThrowExceptionShouldReturnCorrectHttpStatus()
Ran first, then the second test:
controllerShouldReturnListOfAnns()
It always fails because it throw NotFoundException. When I delete the first test or running second test as first, then everything is correct. This look like method when() from first test override method when() form the second test There is test code and test configuration.
#ActiveProfiles("dev")
#RunWith(SpringRunner.class)
#SpringBootTest
public class AnnTestController {
#Autowired
private AnnounService annSrv;
#Autowired
private AnnounRepo annRepo;
#Autowired
private WebApplicationContext wac;
private MockMvc mockMvc;
#Before
public void contextLoads() {
this.mockMvc = MockMvcBuilders.webAppContextSetup(wac).build();
}
#Test
public void afterThrowExceptionShouldReturnCorrectHttpStatus() throws Exception {
when(this.annRepo.getAnnounList()).thenThrow(NotFoundAnnounException.class);
this.mockMvc.perform(get("/ann/list")).andExpect(status().isNotFound());
}
#Test
public void controllerShouldReturnListOfAnns() throws Exception {
List<Announcement> lst = new ArrayList<>();
lst.add(new Announcement(1, "test", "test"));
when(annRepo.getAnnounList()).thenReturn(lst);
this.mockMvc.perform(get("/ann/list"))
.andExpect(status().isOk())
.andExpect(jsonPath("$[0].id", is(1)));
}}
Config:
#Profile("dev")
#Configuration
public class BeanConfig {
#Bean
public CommentsRepo commentsRepo() {
return mock(CommentsRepo.class);
}}
You can try somthing like that:
#After public void reset_mocks() {
Mockito.reset(this.annRepo);
}
I've been learning more about the Mockito framework within Java and I'm lost about what to do to complete this unit test.
Basically, the error from the console states that there is a NullPointerException when the Bar.sayHi() method is trying to be run from the Foo test. I suspect it has something to do with the autowired fields (but I maybe wrong)?
Below is a simple example of the problem that I'm running into:
#RunWith(MockitoJUnitRunner.class)
public class FooTest {
#Mock
//#Spy // Cannot spy on an interface
IBar bar;
#Before
public void setUp() {
MockitoAnnotations.initMocks(this);
}
#Test
public void test() {
// Given
FooImpl foo = new FooImpl();
foo.saySaySay();
// When
// Then
}
}
Here's the FooImpl class under testing (there's an interface for Foo):
public class FooImpl implements IFoo {
#Autowired
private IBar bar;
public void saySaySay() {
bar.sayHi();
}
}
And the Bar class (there's also an interface for Bar):
public class BarImpl implements IBar {
#Override
public void sayHi() {
System.out.println("hello");
}
}
Does anyone has a suggestion on this? Thanks.
Just creating a mock of Ibar will not inject that mock into the #Autowired field.
Autowiring is the job of Spring, not Mockito.
You need to explicitly tell mockito to inject those into testing objects using #InjectMock
#RunWith(MockitoJUnitRunner.class)
public class FooTest {
#InjectMocks
FooImpl foo;
#Mock
IBar bar;
#Before
public void setUp() {
MockitoAnnotations.initMocks(this);
}
#Test
public void test() {
foo.saySaySay();
}
}
or manual set the mock object inside the tested object.
#Test
public void test() {
FooImpl foo = new FooImpl();
ReflectionTestUtils.setField(foo, "bar", bar);
foo.saySaySay();
}
RunWith(MockitoJUnitRunner.class)
public class FooTest {
#Mock
//#Spy // Cannot spy on an interface
IBar bar;
#InjectMocks
private FooImpl foo;
#Before
public void setUp() {
MockitoAnnotations.initMocks(this);
}
#Test
public void test() {
// Given
foo.saySaySay();
verify(bar).sayHi();
// When
// Then
}
}