public function renderUsesCustomPackageKeyIfSpecified()
{
$this->mockResourceManager->expects($this->atLeastOnce())->method('getPublicPackageResourceUri')->with('ThePackageKey', 'Styles/Main.css')->will($this->returnValue('TheCorrectResourceUri'));
$resourceUri = $this->viewHelper->render('Styles/Main.css', 'ThePackageKey', null, false);
$this->assertEquals('TheCorrectResourceUri', $resourceUri);
}