public function testIt()
{
$foo = new Scope('foo');
$bar = new Scope('bar');
$this->assertNull($this->repository->find('foo'));
$this->assertNull($this->repository->find('bar'));
$this->repository->add($foo);
$this->assertEquals($foo, $this->repository->find('foo'));
$this->assertNull($this->repository->find('bar'));
$this->repository->add($bar);
$this->assertEquals($foo, $this->repository->find('foo'));
$this->assertEquals($bar, $this->repository->find('bar'));
}