CODEWITHSUNDEEP
javaunit-testingjunitmockito
fly.bird
fly.bird

Reputation: 131

Mockito: "Wanted but not invoked: [...] Actually, there were zero interactions with this mock."

I have gone through posts on StackOverflow.

Wanted but not invoked: Actually, there were zero interactions with this mock.

I did do what was asked there still I am missing something. Can you please help me what I am missing?

My Java code:

public class AccountController {

    public ResponseEntity<AccountResponse> getAccountByAccountId(
            @RequestHeader("Authorization") final String accountToken,
            @PathVariable("accountId") String accountId) {

        return accountHandler.apply(() -> {

            final AcccountResponse accountResponse = accountService
                    .getAccountByAccountId(accountId);

            return ResponseEntity.ok().body(accountResponse);

        });
    }
}

My unit test:

@InjectMocks
private AccountController accountController;

@Mock
private AccountService accountService;

@Mock
private AccountHandler accountHandler;

@Captor
private ArgumentCaptor<Supplier<ResponseEntity<AccountResponse>>> responseAccount;

private static AccountResponse accountResponse;

@Before
public void setUp() {

    responseEntity = ResponseEntity.ok().body(accountResponse);
}

@Test
public void getAccountByAccountIdTest() {

    when(accountHandler.apply(responseAccount.capture())).thenReturn(responseEntity);
    when(accountService.getAccountByAccountId(accountId)).thenReturn(accountResponse);

    ResponseEntity<AccountResponse> accountResult = accountController.getAccountByAccountId(accountToken, accountId);

    assertNotNull(accountResult);
    assertEquals(HttpStatus.OK, accountResult.getStatusCode());
    assertSame(accountResponse, accountResult.getBody());
    verify(accountHandler).apply(responseAccount.capture());
    verify(accountService).getAccountByAccountId(accountId); // this fails and gives me error
}

Everything works fine except verify(acccountService).getAccountByAccountId(accountId); I get error as 

Wanted but not invoked:
acccountService.getAccountByAccountId(

    "accountId"
);
Actually, there were zero interactions with this mock.

Upvotes: 0

Views: 3541

Answers (1)

Dawood ibn Kareem
Dawood ibn Kareem

Reputation: 79875

Your accountHandler is a mock, which means that apply will do only what you stub it to do. When you stubbed it, you didn't make it call the Supplier<ResponseEntity<AccountResponse>> that was passed to it, which is why getAccountByAccountId never got called.

Probably the easiest way to make this work is to use a real AccountHandler instead of a mock, for your accountHandler field.

An alternative would be to use a Mockito Answer to make the apply method work.

Upvotes: 2

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