@Test
public void testWriteLong() throws IOException {

    writer.writeLong(0x1122334455667788L);
    writer.writeLong(-0x1122334455667788L);
    expectData(0x88, 0x77, 0x66, 0x55, 0x44, 0x33, 0x22, 0x11,
               0x78, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE);
}