Fixing tests

coin/billing/tests.py

@@ -114,7 +114,7 @@ class BillingInvoiceCreationTests(TestCase):
                          datetime.date(2014, 4, 1))
         self.assertEqual(invoice_test_2.details.first().period_to,
                          datetime.date(2014, 5, 31))
-                         
+
     def test_invoice_amount(self):
         invoice = Invoice(member=self.member)
         invoice.save()
@@ -132,7 +132,7 @@ class BillingInvoiceCreationTests(TestCase):
                                period_from=datetime.date(2014, 6, 1),
                                period_to=datetime.date(2014, 8, 31),
                                tax=10)
-        
+
         self.assertEqual(invoice.amount(), 111)
 
     def test_invoice_partial_payment(self):
@@ -145,10 +145,26 @@ class BillingInvoiceCreationTests(TestCase):
                                period_from=datetime.date(2014, 1, 1),
                                period_to=datetime.date(2014, 3, 31),
                                tax=0)
+        invoice.validate()
+        invoice.save()
+
         self.assertEqual(invoice.status, 'open')
-        invoice.payments.create(payment_mean='cash', amount=10)
+        p1 = Payment.objects.create(member=self.member,
+                                    invoice=invoice,
+                                    payment_mean='cash',
+                                    amount=10)
+        p1.save()
+
+        invoice = Invoice.objects.get(pk=invoice.pk)
         self.assertEqual(invoice.status, 'open')
-        invoice.payments.create(payment_mean='cash', amount=90)
+
+        p2 = Payment.objects.create(member=self.member,
+                                    invoice=invoice,
+                                    payment_mean='cash',
+                                    amount=90)
+        p2.save()
+
+        invoice = Invoice.objects.get(pk=invoice.pk)
         self.assertEqual(invoice.status, 'closed')
 
     def test_invoice_amount_before_tax(self):
@@ -168,7 +184,7 @@ class BillingInvoiceCreationTests(TestCase):
                                period_from=datetime.date(2014, 6, 1),
                                period_to=datetime.date(2014, 8, 31),
                                tax=10)
-        
+
         self.assertEqual(invoice.amount_before_tax(), 110)
 
     def test_non_billable_offer_isnt_charged(self):