How to set Mockito rules at one place (super class) for all sub class

I have recently started working with @Mockito annotation at Junit Tests.

the reason i started using @Mockito is because using @Autowired for all the service class took very long.

i have more than 50 test that using the same class for exmple: userService

i would like to have this at my super class

@Mock
    private UserService userService;

and to set Mocking for all the sub class , all sub class have diffrent method and multiple @Test

Normally what i do is adding this line in the @Test method :

 Mockito.when(userService.isValid()).thenReturn(true));

How could i set this Mocking at one place (in super class) and all sub class could know using this Mock ?