assertNull(exception.getMessage(), "Message should be null for no-arg constructor");
        assertNull(exception.getCause(), "Cause should be null for no-arg constructor");
    }

    @Test
    void testStringConstructor() {
        // Test the constructor with a message
        String message = "Connection timed out.";
        ConnectionTimeoutException exception = new ConnectionTimeoutException(message);

    }

    /**
     * Verify that the string-ctor sets status to {@code NT_STATUS_UNSUCCESSFUL}.
     */
    @Test
    @DisplayName("String constructor sets NT_STATUS_UNSUCCESSFUL status")
    void testStringConstructor() {
        SmbException ex = new SmbException("custom message");
        assertEquals("custom message", ex.getMessage());
        assertEquals(NtStatus.NT_STATUS_UNSUCCESSFUL, ex.getNtStatus());
    }

    /**