byte[] data = new byte[] { 0x78, 0x56, 0x34, 0x12 };
        PacDataInputStream pdis = createInputStream(data);
        assertEquals(0x12345678, pdis.readInt());
    }

    @Test
    public void testReadLong() throws IOException {
        // Little-endian 0x123456789ABCDEF0 -> 0xF0 0xDE 0xBC 0x9A 0x78 0x56 0x34 0x12
        byte[] data = new byte[] { (byte) 0xF0, (byte) 0xDE, (byte) 0xBC, (byte) 0x9A, 0x78, 0x56, 0x34, 0x12 };