public function test_accessors()
 {
     /** === Test Data === */
     $LOT_REF = 'lot ref';
     $STOCK_ITEM_REF = 'stock item ref';
     $TOTAL = 'total';
     /** === Call and asserts  === */
     $this->obj->setLotRef($LOT_REF);
     $this->obj->setStockItemRef($STOCK_ITEM_REF);
     $this->obj->setTotal($TOTAL);
     $this->assertEquals($LOT_REF, $this->obj->getLotRef());
     $this->assertEquals($STOCK_ITEM_REF, $this->obj->getStockItemRef());
     $this->assertEquals($TOTAL, $this->obj->getTotal());
 }