Java Community | Help. Code. Learn.•6mo ago

How to make spring boot @Value fields inject the values from properties?

@ExtendWith(MockitoExtension.class)
@TestPropertySource("classpath:application-test.properties")
class AuthServiceTests {

    @Mock
    private UserService userService;

    @InjectMocks
    private AuthService authService;

    @Test
    void testRegisterUser() {
        when(userService.existsByEmail("[email protected]")).thenReturn(false);
        when(userService.existsByEmail("[email protected]")).thenReturn(true);

        assertThat(authService.register("username", "[email protected]", "Password1"))
                .isNotNull();
        assertThatThrownBy(() -> authService.register("username", "[email protected]", "Password1"))
                .isInstanceOf(UserAlreadyExistsException.class);
    }
}

@ExtendWith(MockitoExtension.class)
@TestPropertySource("classpath:application-test.properties")
class AuthServiceTests {

    @Mock
    private UserService userService;

    @InjectMocks
    private AuthService authService;

    @Test
    void testRegisterUser() {
        when(userService.existsByEmail("[email protected]")).thenReturn(false);
        when(userService.existsByEmail("[email protected]")).thenReturn(true);

        assertThat(authService.register("username", "[email protected]", "Password1"))
                .isNotNull();
        assertThatThrownBy(() -> authService.register("username", "[email protected]", "Password1"))
                .isInstanceOf(UserAlreadyExistsException.class);
    }
}

authService contains 2 fields:

@Value("${notecz.auth.jwt.expire}")
    private Long validFor;
    @Value("${notecz.auth.jwt.secret}")
    private String secret;

@Value("${notecz.auth.jwt.expire}")
    private Long validFor;
    @Value("${notecz.auth.jwt.secret}")
    private String secret;

both of them are set to null for some reason. any idea why? applicaiton test properties indeed contains the 2 pairs

22 Replies

JavaBot•6mo ago

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szatkus•6mo ago

It only happens in tests?

KoblížkáčOP•6mo ago

i think so

szatkus•6mo ago

Inject a bean of type Environment and inspect property sources there.

KoblížkáčOP•6mo ago

i cant @autowire into tests if you mean that

szatkus•6mo ago

Wait, the test is not under any Spring context. So @TestPropertySource won't work. Actually you don't even have any Spring beans. Everything is done by Mockito.

KoblížkáčOP•6mo ago

do i need to use @springboottest then? i dont want to load the whole configuratiopn though

szatkus•6mo ago

I would inject those values by constructor.

KoblížkáčOP•6mo ago

Wdym?

szatkus•6mo ago

public AuthService(UserService userService, @Value("${notecz.auth.jwt.expire}") Long validFor,  @Value("${notecz.auth.jwt.secret}") String secret)

JavaBot•6mo ago

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KoblížkáčOP•6mo ago

it passes null still though @tjoener sorry for pinging, but i know you knew how my problems could be fixed, do you maybe have an idea why is this happening?

JavaBot•6mo ago

💤 Post marked as dormant

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imp_o_rt•6mo ago

you're using MockitoExtension so spring context is not starting try using SpringExtension this test seems a little confused - if you're using mocks you probably don't need to use spring (and vice versa)?

KoblížkáčOP•6mo ago

still same error i dont get what you mean by that

szatkus•6mo ago

Have you provided values for those fields?

KoblížkáčOP•6mo ago

i mean they should be loaded from the properties file no?

szatkus•6mo ago

KoblížkáčOP•6mo ago

but thats what i want i dont want to pass them manually

szatkus•6mo ago

Well, you don't use Spring in this test, so you can't count on its mechanics. And loading properties from a file is trival, so it's not much of a headache.

KoblížkáčOP•6mo ago

what if i wanted to use spring though

JavaBot•6mo ago

💤 Post marked as dormant

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How to make spring boot @Value fields inject the values from properties?

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