Recurly_Usage::get PHP 메소드

    public static function get($subUuid, $addOnCode, $usageId, $client = null)
    {
        return Recurly_Base::_get(self::uriForUsage($subUuid, $addOnCode, $usageId), $client);
    }

 public function testGetUsage()
 {
     $this->client->addResponse('GET', '/subscriptions/012345678901234567890123456789ab/add_ons/marketing_emails/usage/123456', 'usage/show-200.xml');
     $usage = Recurly_Usage::get('012345678901234567890123456789ab', 'marketing_emails', 123456, $this->client);
     $this->assertInstanceOf('Recurly_Usage', $usage);
     $this->assertInstanceOf('Recurly_Stub', $usage->measured_unit);
     $this->assertEquals(6, $usage->amount);
     $this->assertEquals('Order Number: #198349243975', $usage->merchant_tag);
     $this->assertEquals('percentage', $usage->usage_type);
     $this->assertEquals(1.25, $usage->usage_percentage);
 }