/**
* @return void
*/
public function testExecute()
{
$content = ['export'];
$fileName = 'products_mostviewed.csv';
$this->abstractBlockMock->expects($this->once())->method('getCsvFile')->willReturn($content);
$this->layoutMock->expects($this->once())->method('createBlock')->with('Magento\\Reports\\Block\\Adminhtml\\Product\\Viewed\\Grid')->willReturn($this->abstractBlockMock);
$this->fileFactoryMock->expects($this->once())->method('create')->with($fileName, $content, \Magento\Framework\App\Filesystem\DirectoryList::VAR_DIR);
$this->exportViewedCsv->execute();
}
