diff --git a/erpnext/buying/doctype/supplier/test_supplier.py b/erpnext/buying/doctype/supplier/test_supplier.py
index 298eb00..89e0862 100644
--- a/erpnext/buying/doctype/supplier/test_supplier.py
+++ b/erpnext/buying/doctype/supplier/test_supplier.py
@@ -10,52 +10,8 @@
 
 test_records = frappe.get_test_records('Supplier')
 
+
 class TestSupplier(unittest.TestCase):
-    def test_supplier_due_date_against_supplier_credit_limit(self):
-        # Set Credit Limit based on Fixed days
-        frappe.db.set_value("Supplier", "_Test Supplier", "credit_days_based_on", "Fixed Days")
-        frappe.db.set_value("Supplier", "_Test Supplier", "credit_days", 10)
-
-        due_date = get_due_date("2016-01-22", "Supplier", "_Test Supplier")
-        self.assertEqual(due_date, "2016-02-01")
-
-        # Set Credit Limit based on Last day next month
-        frappe.db.set_value("Supplier", "_Test Supplier", "credit_days", 0)
-        frappe.db.set_value("Supplier", "_Test Supplier", "credit_days_based_on",
-                            "Last Day of the Next Month")
-
-        # Leap year
-        due_date = get_due_date("2016-01-22", "Supplier", "_Test Supplier", "_Test Company")
-        self.assertEqual(due_date, "2016-02-29")
-        # Non Leap year
-        due_date = get_due_date("2017-01-22", "Supplier", "_Test Supplier", "_Test Company")
-        self.assertEqual(due_date, "2017-02-28")
-
-        frappe.db.set_value("Supplier", "_Test Supplier", "credit_days_based_on", "")
-
-        # Set credit limit for the supplier type instead of supplier and evaluate the due date
-        # based on Fixed days
-        frappe.db.set_value("Supplier Type", "_Test Supplier Type", "credit_days_based_on",
-                            "Fixed Days")
-        frappe.db.set_value("Supplier Type", "_Test Supplier Type", "credit_days", 10)
-
-        due_date = get_due_date("2016-01-22", "Supplier", "_Test Supplier", "_Test Company")
-        self.assertEqual(due_date, "2016-02-01")
-
-        # Set credit limit for the supplier type instead of supplier and evaluate the due date
-        # based on Last day of next month
-        frappe.db.set_value("Supplier", "_Test Supplier Type", "credit_days", 0)
-        frappe.db.set_value("Supplier Type", "_Test Supplier Type", "credit_days_based_on",
-                            "Last Day of the Next Month")
-
-        # Leap year
-        due_date = get_due_date("2016-01-22", "Supplier", "_Test Supplier", "_Test Company")
-        self.assertEqual(due_date, "2016-02-29")
-        # Non Leap year
-        due_date = get_due_date("2017-01-22", "Supplier", "_Test Supplier", "_Test Company")
-        self.assertEqual(due_date, "2017-02-28")
-
-
     def test_supplier_disabled(self):
         make_test_records("Item")
 
@@ -71,7 +27,6 @@
 
         po.save()
 
-
     def test_supplier_country(self):
         # Test that country field exists in Supplier DocType
         supplier = frappe.get_doc('Supplier', '_Test Supplier with Country')