The MockitoBean annotation is not processed when using a TestConfiguration annotated class

[umekong]

This issue is currently being observed in version 3.4.3.
Here is quick bit of code to highlight issue

@SpringBootTest
class MockObjectTest {
    @Test
    void doNothing() {
        // test started up fine
    }

    @TestConfiguration
    static class InitMocks {
        @MockBean // deprecated and set for removal in 3.6.0
        private SomeObject mockBean;

        @MockitoBean
        private SomeObject mockitoBean;

        @PostConstruct
        public void init() {
            assertNotNull(mockBean); // successful
            assertNotNull(mockitoBean); // fails
        }
    }
}

[wilkinsona]

@TestConfiguration is meta-annotated with @Component which is why this works with @MockBean. @MockitoBean doesn't support such injection. spring-projects/spring-framework#34415 has a suggestion for an alternative arrangement that may help.

[umekong]

Should the Javadoc be updated to reflect that MockitoBean is not a like-for-like replacement for the deprecated MockBean then?
Also @wilkinsona, I would need to verify but the suggestion in spring-projects/spring-framework#34415 would not work in scenarios where the TestConfiguration class has been introduced because the MockitoBean needs to be configured before usage by another Bean within the Spring context.

[wilkinsona]

#43348 is tracking some documentation improvements.

the MockitoBean needs to be configured before usage by another Bean within the Spring context.

With that requirement, whether you're using @MockBean or @MockitoBean, we recommend using a @Bean method that creates, configures, and returns a Mockito mock directly instead.