/**
* Tests that the password only needs to be re-built according to the first hasher
*
* @return void
*/
public function testNeedsRehash()
{
$hasher = new FallbackPasswordHasher(['hashers' => ['Default', 'Weak']]);
$weak = new WeakPasswordHasher();
$otherHash = $weak->hash('foo');
$this->assertTrue($hasher->needsRehash($otherHash));
$simple = new DefaultPasswordHasher();
$hash = $simple->hash('foo');
$this->assertFalse($hasher->needsRehash($hash));
}