assertNull(unicodeStringFalse.buffer, "Buffer should be null for empty string");
    }

    @Test
    void testConstructorWithRpcUnicodeStringAndZterm() {
        // Create a dummy rpc.unicode_string
        rpc.unicode_string dummyRus = new rpc.unicode_string();
        dummyRus.length = 10;
        dummyRus.maximum_length = 20;