add tests for payment term template

erpnext/accounts/doctype/payment_terms_template/test_payment_terms_template.py

@@ -4,6 +4,46 @@
 from __future__ import unicode_literals
 import unittest
 
+import frappe
+
 
 class TestPaymentTermsTemplate(unittest.TestCase):
-	pass
+	def tearDown(self):
+		frappe.delete_doc('Payment Terms Template', '_Test Payment Terms Template', force=1)
+
+	def test_create_template(self):
+		template = frappe.get_doc({
+			'doctype': 'Payment Terms Template',
+			'template_name': '_Test Payment Terms Template',
+			'terms': [{
+				'doctype': 'Payment Terms Template Detail',
+				'invoice_portion': 50.00,
+				'credit_days_based_on': 'Day(s) after invoice date',
+				'credit_days': 30
+			}]
+		})
+
+		self.assertRaises(frappe.ValidationError, template.insert)
+
+		template.append('terms', {
+			'doctype': 'Payment Terms Template Detail',
+			'invoice_portion': 50.00,
+			'credit_days_based_on': 'Day(s) after invoice date',
+			'credit_days': 0
+		})
+
+		template.insert()
+
+	def test_credit_days(self):
+		template = frappe.get_doc({
+			'doctype': 'Payment Terms Template',
+			'template_name': '_Test Payment Terms Template',
+			'terms': [{
+				'doctype': 'Payment Terms Template Detail',
+				'invoice_portion': 100.00,
+				'credit_days_based_on': 'Day(s) after invoice date',
+				'credit_days': -30
+			}]
+		})
+
+		self.assertRaises(frappe.ValidationError, template.insert)