/**
* @test
*/
public function loadExtCoreInDebugLoadsDebugExtCore()
{
$subject = new \TYPO3\CMS\Core\Page\PageRenderer();
$expectedRegExp = '#<script src="contrib/extjs/ext-core-debug\\.(js|\\d+\\.js|js\\?\\d+)" type="text/javascript"></script>#';
$subject->loadExtCore();
$subject->enableExtCoreDebug();
$out = $subject->render();
$this->assertRegExp($expectedRegExp, $out);
}