test: increase assertions to cover all cases

erpnext/stock/report/stock_balance/stock_balance.py

@@ -375,7 +375,7 @@ def get_items(filters: StockBalanceFilter):
 		if brand := filters.get("brand"):
 			item_filters["brand"] = brand
 
-		return frappe.get_all("Item", filters=item_filters, pluck="name", order_by=None, debug=1)
+		return frappe.get_all("Item", filters=item_filters, pluck="name", order_by=None)
 
 
 def get_item_details(items, sle, filters: StockBalanceFilter):

erpnext/stock/report/stock_balance/test_stock_balance.py

@@ -71,14 +71,16 @@ def assertInvariants(self, rows):
 			# value invariant
 			self.assertAlmostEqual(row.bal_val, row.opening_val + row.in_val - row.out_val, msg)
 
-			# valuation rate
-			self.assertAlmostEqual(row.val_rate, row.bal_val / row.bal_qty, 3, msg)
-
 			# check against SLE
 			last_sle = item_wh_stock[(row.item_code, row.warehouse)]
 			self.assertAlmostEqual(row.bal_qty, last_sle.qty_after_transaction, 3)
 			self.assertAlmostEqual(row.bal_val, last_sle.stock_value, 3)
 
+			# valuation rate
+			if not row.bal_qty:
+				continue
+			self.assertAlmostEqual(row.val_rate, row.bal_val / row.bal_qty, 3, msg)
+
 	# ----------- tests
 
 	def test_basic_stock_balance(self):
@@ -133,6 +135,7 @@ def test_uom_converted_info(self):
 
 		rows = stock_balance(self.filters.update({"include_uom": "Box"}))
 		self.assertEqual(rows[0].bal_qty_alt, 1)
+		self.assertInvariants(rows)
 
 	def test_item_group(self):
 		self.filters.pop("item_code", None)
@@ -167,3 +170,4 @@ def test_show_item_attr(self):
 			self.filters.update({"show_variant_attributes": 1, "item_code": variant.name})
 		)
 		self.assertPartialDictEq(attributes, rows[0])
+		self.assertInvariants(rows)