public function testGetCellFeed()
 {
     $query = new Spreadsheets\CellQuery();
     $query->setSpreadsheetKey($this->sprKey);
     $query->setWorksheetId($this->wksId);
     $feed = $this->gdata->getCellFeed($query);
     $this->assertTrue($feed instanceof Spreadsheets\CellFeed);
     foreach ($feed->entries as $entry) {
         $this->assertTrue($entry instanceof Spreadsheets\CellEntry);
         $this->assertTrue($entry->getService() == $feed->getService());
     }
     $feed = $this->gdata->getCellFeed($query->getQueryUrl());
     $this->assertTrue($feed instanceof Spreadsheets\CellFeed);
     foreach ($feed->entries as $entry) {
         $this->assertTrue($entry instanceof Spreadsheets\CellEntry);
         $this->assertTrue($entry->getService() == $feed->getService());
     }
 }