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from django.test import TestCase
from .models import Person
class PropertyTests(TestCase):
@classmethod
def setUpTestData(cls):
cls.a = Person.objects.create(first_name='John', last_name='Lennon')
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, "Person() got an unexpected keyword argument 'full_name'"):
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')
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