byte[] data = new byte[] { 0x7F };
        PacDataInputStream pdis = createInputStream(data);
        assertEquals(0x7F, pdis.readByte());
    }

    @Test
    public void testReadShort() throws IOException {
        // Little-endian 0x1234 -> 0x34 0x12
        byte[] data = new byte[] { 0x34, 0x12, 0x00, 0x00 };
        PacDataInputStream pdis = createInputStream(data);