@Mock
    DfsReferralData referral;

    // Reflection-based API checks ensure the interface contract is as expected
    @Test
    @DisplayName("Type hierarchy and method signatures are correct")
    void typeAndSignatures() throws Exception {
        Class<?> clazz = SmbResourceLocatorInternal.class;

        // Assert it's an interface and extends the right superinterface
        assertTrue(clazz.isInterface(), "Should be an interface");