Merge "Always remove the LocalServices interface before adding a new one." into main

     * Creates a mock and registers it to {@link LocalServices}.

     */

    private static <T> T addLocalServiceMock(Class<T> clazz) {

        LocalServices.removeServiceForTest(clazz);

        final T mock = mock(clazz);

        LocalServices.addService(clazz, mock);

        return mock;