Scalr\Tests\Service\Aws\RdsTest::removesPreviouslyCreatedData PHP 메소드

    protected function removesPreviouslyCreatedData()
    {
        $aws = $this->getEnvironment()->aws(AwsTestCase::REGION);
        //Removes previously created DBInstances if it isn't removed by some reason.
        try {
            /* @var $i DBInstanceData */
            $i = $aws->rds->dbInstance->describe(self::getTestName(self::NAME_INSTANCE))->get();
            $this->assertInstanceOf($this->getRdsClassName('DataType\\DBInstanceData'), $i);
            $this->removeDBInstance($i);
            unset($i);
        } catch (ClientException $e) {
            if ($e->getErrorData()->getCode() != ErrorData::ERR_DB_INSTANCE_NOT_FOUND) {
                throw $e;
            }
        }
        //Removes previously created DBSnapshots if it isn't removed by some reason.
        /* @var  $snList DBSnapshotList */
        $snList = $aws->rds->dbSnapshot->describe(self::getTestName(self::NAME_INSTANCE));
        $this->assertInstanceOf($this->getRdsClassName('DataType\\DBSnapshotList'), $snList);
        if ($snList->count() > 0) {
            /* @var  $sn DBSnapshotData */
            foreach ($snList as $sn) {
                $this->assertInstanceOf($this->getRdsClassName('DataType\\DBSnapshotData'), $sn);
                $sn->delete();
            }
            $timeout = 0;
            while (($timeout += static::SLEEP_TIMEOUT) < static::SLEEP_TIME) {
                $snList->rewind();
                while ($snList->valid()) {
                    $sn = $snList->current();
                    try {
                        sleep(static::SLEEP_TIMEOUT);
                        $sn->refresh();
                    } catch (ClientException $e) {
                        if ($e->getErrorData()->getCode() != ErrorData::ERR_DB_SNAPSHOT_NOT_FOUND) {
                            throw $e;
                        }
                        $snList->offsetUnset($snList->key());
                    }
                    $snList->next();
                }
                if ($snList->count() === 0) {
                    break;
                }
            }
        }
        unset($snList);
        //Removes previously created DBSecurityGroup if it isn't removed by some reason.
        try {
            /* @var $sg DBSecurityGroupData */
            $sg = $aws->rds->dbSecurityGroup->describe(self::getTestName(self::NAME_SG))->get();
            $this->assertInstanceOf($this->getRdsClassName('DataType\\DBSecurityGroupData'), $sg);
            $this->assertTrue($sg->delete());
            unset($sg);
        } catch (ClientException $e) {
            if ($e->getErrorData()->getCode() != ErrorData::ERR_DB_SECURITY_GROUP_NOT_FOUND) {
                throw $e;
            }
        }
        //Removes previously created DBParameterGroup if it does exist
        try {
            /* @var $pg DBParameterGroupData */
            $pg = $aws->rds->dbParameterGroup->describe(self::getTestName(self::NAME_DB_PARAMETER_GROUP))->get();
            $this->assertInstanceOf($this->getRdsClassName('DataType\\DBParameterGroupData'), $pg);
            $this->assertTrue($pg->delete());
            unset($pg);
        } catch (ClientException $e) {
            if ($e->getErrorData()->getCode() != ErrorData::ERR_DB_PARAMETER_GROUP_NOT_FOUND) {
                throw $e;
            }
        }
    }