}
@Test
public void testToByteArray() throws Exception {
BitStream bs = new BitStream(2);
bs.writeBits(BigInteger.valueOf(255), 8);
bs.writeBits(BigInteger.valueOf(255), 8);
byte[] data = bs.toByteArray();
assertEquals(-1, data[0]);
assertEquals(-1, data[1]);
bs.readBits(4, true);