public function testCanAdjustEncriptionWorkfactor()
{
$this->auth->setUserOption(AuthManager::ATTR_WORKFACTOR, 4);
$start = microtime(true);
$this->auth->newUser('user1', 'P@ssW0rd', '*****@*****.**');
$token = $this->auth->getTokenElement(true);
$_POST[$this->auth->tokenkey] = $this->auth->tokenval;
$this->auth->login('user1', 'P@ssW0rd');
$time1 = microtime(true) - $start;
$this->auth->setUserOption(AuthManager::ATTR_WORKFACTOR, 6);
$start = microtime(true);
$this->auth->newUser('user2', 'P@ssW0rd', '*****@*****.**');
$token = $this->auth->getTokenElement(true);
$_POST[$this->auth->tokenkey] = $this->auth->tokenval;
$this->auth->login('user2', 'P@ssW0rd');
$time2 = microtime(true) - $start;
$this->assertGreaterThan($time1 * 2, $time2, 'A work factor of 6 should be more than 2x as slow as a workfactor of 4');
}
