from django.test import TestCase from .models import Person class PropertyTests(TestCase): def setUp(self): self.a = Person(first_name='John', last_name='Lennon') self.a.save() def test_getter(self): self.assertEqual(self.a.full_name, 'John Lennon') def test_setter(self): # The "full_name" property hasn't provided a "set" method. with self.assertRaises(AttributeError): setattr(self.a, 'full_name', 'Paul McCartney') # And cannot be used to initialize the class. with self.assertRaisesMessage(TypeError, "'full_name' is an invalid keyword argument"): Person(full_name='Paul McCartney') # But "full_name_2" has, and it can be used to initialize the class. a2 = Person(full_name_2='Paul McCartney') a2.save() self.assertEqual(a2.first_name, 'Paul')