Test that each page doesn't exceed allowed SQL count in Symfony? - automated-tests

Question

I wish I could have an isSQLCountLessThan() function or something.
$browser = new sfTestFunctional(new sfBrowser());
$browser
->get('/some/page')
->with('response')->begin()
->isStatusCode(200)
// ...
->isSQLCountLessThan(20) // imagine how cool :)
->end();
Is there a way to have such?

Answer 1

I once created tester for this purpose. It's based on how it's done in web debug toolbar (sfWebDebugPanelDoctrine class).
I extended sfTesterDoctrine so it behaves the same. Only assertion method is added to check query count.
You could also overwrite debug() method to show query statistics.
<?php
/*
* (c) 2010 Jakub Zalas
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* #package zTestPlugin
* #subpackage test
* #author Jakub Zalas <jakub#zalas.pl>
*/
class zTesterDoctrine extends sfTesterDoctrine
{
/**
* #param integer $limit
* #return sfTestFunctionalBase|sfTester
*/
public function assertSqlCountLessThan($limit)
{
$queryCount = $this->countDoctrineEvents();
$this->tester->cmp_ok($queryCount, '<', (int) $limit, sprintf('There are less than "%d" SQL queries performed', $limit));
return $this->getObjectToReturn();
}
/**
* #return integer
*/
protected function countDoctrineEvents()
{
return count($this->getDoctrineEvents());
}
/**
* #return array
*/
protected function getDoctrineEvents()
{
if (!$databaseManager = $this->browser->getContext()->getDatabaseManager())
{
throw new LogicConnection('The current context does not include a database manager.');
}
$events = array();
foreach ($databaseManager->getNames() as $name)
{
$database = $databaseManager->getDatabase($name);
if ($database instanceof sfDoctrineDatabase && $profiler = $database->getProfiler())
{
foreach ($profiler->getQueryExecutionEvents() as $event)
{
$events[$event->getSequence()] = $event;
}
}
}
ksort($events);
return $events;
}
}
Example usage:
$browser = new sfTestFunctional(new sfBrowser());
$browser->setTester('doctrine', 'zTesterDoctrine');
$browser
->get('/some/page')
->with('response')->begin()
->isStatusCode(200)
->end()
->with('doctrine')->begin()
->assertSqlCountLessThan(20) // imagine how cool :)
->end()
->end();