/**
* @return void
*/
public function testExecute()
{
$this->abstractBlockMock->expects($this->once())->method('getExcelFile')->willReturn(['export']);
$this->layoutMock->expects($this->once())->method('getChildBlock')->with('adminhtml.report.grid', 'grid.export');
$this->fileFactoryMock->expects($this->once())->method('create')->with('customers_orders.xml', ['export'], \Magento\Framework\App\Filesystem\DirectoryList::VAR_DIR);
$this->exportOrdersExcel->execute();
}
