unicodeString.check(null);
        });
    }

    @Test
    @DisplayName("Test PacUnicodeString check method with valid pointer")
    void testPacUnicodeStringCheckWithValidPointer() throws Exception {
        // When pointer is non-zero, validate string length
        String testString = "TEST";
        short length = (short) (testString.length() * 2); // Unicode length