fix: cost center in test_sales_invoice_against_supplier
diff --git a/erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py
index b48dc92..83f0222 100644
--- a/erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py
@@ -2185,7 +2185,7 @@
 		frappe.db.set_value('Accounts Settings', None, 'enable_common_party_accounting', 1)
 
 		# create a sales invoice
-		si = create_sales_invoice(customer=customer)
+		si = create_sales_invoice(customer=customer, parent_cost_center="_Test Cost Center - _TC")
 
 		# check outstanding of sales invoice
 		si.reload()