public function testConvertToStringMultiWord()
{
$bitString = new BitString(64);
$bitString->setBitsHighToLow(63, '1111111111111111111111111111111100000000000000000000000000000000');
$string = $bitString->__toString();
// 64-bits should map to 8 8-bit characters.
$this->assertEquals(8, strlen($string));
$chars = str_split($string);
$this->assertEquals(chr(255), $chars[0]);
$this->assertEquals(chr(0), $chars[count($chars) - 1]);
$bitString2 = BitString::fromString($string);
$this->assertEquals('1111111111111111111111111111111100000000000000000000000000000000', $bitString2->toBinaryString());
}
