@Test
public void testAsBinaryString() {

  int bitLen = 72;
  byte[] bits = new byte[bitLen / 8];
  for (int b = 0; b < bits.length; b++) {
    bits[b] = (byte) b;
  }
  StrictBitVector bv = new StrictBitVector(bits);
  String expected = "000100001110000001100000101000000010000011000000010000001000000000000000";
  assertEquals(expected, bv.asBinaryString());
}