};
        PacDataInputStream pdis = createInputStream(data);
        String str = pdis.readString();
        assertEquals("AB", str);
    }

    @Test
    public void testReadStringMalformed() throws IOException {
        // unused > total
        byte[] data = new byte[] { 0x02, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00 };
        PacDataInputStream pdis = createInputStream(data);