Recurly_Subscription::get PHP Method

    public static function get($uuid, $client = null)
    {
        return Recurly_Base::_get(Recurly_Subscription::uriForSubscription($uuid), $client);
    }

 public function testCreateUsageFromSubscription()
 {
     $this->client->addResponse('GET', '/subscriptions/012345678901234567890123456789ab', 'subscriptions/show-200.xml');
     $this->client->addResponse('POST', '/subscriptions/012345678901234567890123456789ab/add_ons/marketing_emails/usage', 'usage/create-201.xml');
     $subscription = Recurly_Subscription::get('012345678901234567890123456789ab', $this->client);
     $usage = $subscription->buildUsage('marketing_emails', $this->client);
     $usage->create();
     $this->assertInstanceOf('Recurly_Usage', $usage);
     $this->assertInstanceOf('Recurly_Stub', $usage->measured_unit);
 }