FluidTYPO3\Fluidpages\Service\PageService::getPageFlexFormSource PHP Method

    public function getPageFlexFormSource($pageUid)
    {
        $pageUid = (int) $pageUid;
        if (1 > $pageUid) {
            return null;
        }
        $page = $this->workspacesAwareRecordService->getSingle('pages', '*', $pageUid);
        while (null !== $page && 0 !== (int) $page['uid'] && true === empty($page['tx_fed_page_flexform'])) {
            $resolveParentPageUid = (int) (0 > $page['pid'] ? $page['t3ver_oid'] : $page['pid']);
            $page = $this->workspacesAwareRecordService->getSingle('pages', '*', $resolveParentPageUid);
        }
        return $page['tx_fed_page_flexform'];
    }

 /**
  * @return void
  */
 public function testGetPageFlexFormSource()
 {
     $record1 = array('pid' => 2, 'uid' => 1);
     $record2 = array('pid' => 0, 'uid' => 3, 'tx_fed_page_flexform' => 'test');
     $service = $this->getMock('FluidTYPO3\\Flux\\Service\\WorkspacesAwareRecordService', array('getSingle'));
     $service->expects($this->at(0))->method('getSingle')->with('pages', '*', 1)->willReturn($record1);
     $service->expects($this->at(1))->method('getSingle')->with('pages', '*', 2)->willReturn($record2);
     $instance = new PageService();
     $instance->injectWorkspacesAwareRecordService($service);
     $output = $instance->getPageFlexFormSource(1);
     $this->assertEquals('test', $output);
 }