diff --git a/erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py
index 9a1af7f..305b689 100644
--- a/erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py
@@ -1047,7 +1047,7 @@
 	si = frappe.new_doc("Sales Invoice")
 	args = frappe._dict(args)
 	if args.posting_date:
-		si.set_posting_date = 1
+		si.set_posting_time = 1
 	si.posting_date = args.posting_date or nowdate()
 
 	si.company = args.company or "_Test Company"
diff --git a/erpnext/stock/doctype/delivery_note/test_delivery_note.py b/erpnext/stock/doctype/delivery_note/test_delivery_note.py
index fce11dc..fdb6ac9 100644
--- a/erpnext/stock/doctype/delivery_note/test_delivery_note.py
+++ b/erpnext/stock/doctype/delivery_note/test_delivery_note.py
@@ -447,6 +447,7 @@
 		self.assertEqual(dn1.status, "Completed")
 
 		dn2 = make_delivery_note(so.name)
+		dn2.set_posting_time = 1
 		dn2.posting_time = "08:00"
 		dn2.get("items")[0].qty = 4
 		dn2.submit()