/**
* @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->executeInternal();
}
