assertSame(mockCause, ex.getRootCause());
        assertEquals(NtStatus.NT_STATUS_UNSUCCESSFUL, ex.getNtStatus());

        // Verify: constructor should not have interacted with the cause
        Mockito.verifyNoInteractions(mockCause);
    }

    /**
     * Ensure toString includes the exception class name and message, providing a readable representation.
     */
    @Test

        assertSame(cause, ex.getCause());
        assertEquals(message, ex.getMessage());

        // Since message is explicitly provided, constructor should not need to call methods on cause
        Mockito.verifyNoInteractions(cause);

        // toString should include provided message
        assertEquals(SMBProtocolDowngradeException.class.getName() + ": " + message, ex.toString());
    }

    @Test