public function testRandCharacter()
{
for ($i = 0; $i < 2000; $i++) {
$c = _Rand::_randCharacter();
if (!isset($hash[$c])) {
$hash[$c] = 1;
} else {
$hash[$c]++;
}
$code = ord($c);
$this->assertGreaterThanOrEqual(32, $code);
$this->assertLessThanOrEqual(126, $code);
}
// A perfect distribution would have 94 different chars.
// Allow for the off chance that maybe 1 char isn't used in 2000 iterations
$this->assertGreaterThanOrEqual(93, count($hash));
}
