public function test_entities_descriptor_can_be_added()
{
$entitiesDescriptor = new EntitiesDescriptor();
$entitiesDescriptor->addItem(new EntityDescriptor('http://some.com'));
$entitiesDescriptor->addItem($expected = new EntityDescriptor($entityId = 'http://entity.com'));
$entitiesDescriptor->addItem(new EntityDescriptor('http://third.com'));
$store = new FixedEntityDescriptorStore();
$store->add($entitiesDescriptor);
$this->assertTrue($store->has($entityId));
$this->assertSame($expected, $store->get($entityId));
}