fix: Sider and Server side test

- args passed to wrong function
- missing space around '='

erpnext/stock/report/stock_ageing/stock_ageing.py

@@ -245,7 +245,7 @@ class FIFOSlots:
 					consumed/updated and maintained via FIFO. **
 			}
 		"""
-		if self.sle == None:
+		if self.sle is None:
 			self.sle = self.__get_stock_ledger_entries()
 
 		for d in self.sle:
@@ -358,7 +358,8 @@ class FIFOSlots:
 				posting_date <= %(to_date)s and
 				is_cancelled != 1
 				{sle_conditions}
-			order by posting_date, posting_time, sle.creation, actual_qty""" #nosec
+			order by posting_date, posting_time, sle.creation, actual_qty
+			""" #nosec
 			.format(
 				item_conditions=self.__get_item_conditions(),
 				sle_conditions=self.__get_sle_conditions()

erpnext/stock/report/stock_balance/stock_balance.py

@@ -33,7 +33,7 @@ def execute(filters=None):
 
 	if filters.get('show_stock_ageing_data'):
 		filters['show_warehouse_wise_stock'] = True
-		item_wise_fifo_queue = FIFOSlots().generate(filters, sle)
+		item_wise_fifo_queue = FIFOSlots(filters, sle).generate()
 
 	# if no stock ledger entry found return
 	if not sle:

erpnext/stock/report/warehouse_wise_item_balance_age_and_value/warehouse_wise_item_balance_age_and_value.py

@@ -33,7 +33,7 @@ def execute(filters=None):
 	item_map = get_item_details(items, sle, filters)
 	iwb_map = get_item_warehouse_map(filters, sle)
 	warehouse_list = get_warehouse_list(filters)
-	item_ageing = FIFOSlots().generate(filters)
+	item_ageing = FIFOSlots(filters).generate()
 	data = []
 	item_balance = {}
 	item_value = {}