@Test
public void testWordToString() {

	long word = 0;
	Assert.assertEquals(
			"0000000000000000000000000000000000000000000000000000000000000000",
			BitVectorImpl.wordToString(word));
	word = -1;
	Assert.assertEquals(
			"1111111111111111111111111111111111111111111111111111111111111111",
			BitVectorImpl.wordToString(word));
	word = 0x362;
	Assert.assertEquals(
			"0100011011000000000000000000000000000000000000000000000000000000",
			BitVectorImpl.wordToString(word));
}