public function testModifyingAnInstanceAttribute()
{
self::log("\n[#4] Modify the attributes of an instance.");
$instanceId = $this->runAnInstance();
self::log('Stop the instance.');
$this->client->getCommand('StopInstances', array('InstanceIds' => array($instanceId)))->execute();
self::log('Wait until the instance is stopped.');
$this->client->waitUntilInstanceStopped(array('InstanceIds' => array($instanceId)));
self::log('Change the stopped instance from a micro to a small.');
$this->client->getCommand('ModifyInstanceAttribute', array('InstanceId' => $instanceId, 'Attribute' => 'instanceType', 'Value' => InstanceType::M1_SMALL))->execute();
self::log('Start the instance back up.');
$this->client->getCommand('StartInstances', array('InstanceIds' => array($instanceId)))->execute();
self::log('Wait until the instance is running.');
$this->client->waitUntilInstanceRunning(array('InstanceIds' => array($instanceId)));
$this->terminateAnInstance($instanceId);
}
