Python django.contrib.auth.models.User 模块，USERNAME_FIELD 实例源码

def test_django_user_main_attribute(self):
        backend = Saml2Backend()

        old_username_field = User.USERNAME_FIELD
        User.USERNAME_FIELD = 'slug'
        self.assertEqual(backend.get_django_user_main_attribute(), 'slug')
        User.USERNAME_FIELD = old_username_field

        with override_settings(AUTH_USER_MODEL='auth.User'):
            self.assertEqual(
                DjangoUserModel.USERNAME_FIELD,
                backend.get_django_user_main_attribute())

        with override_settings(
                AUTH_USER_MODEL='testprofiles.StandaloneUserModel'):
            self.assertEqual(
                backend.get_django_user_main_attribute(),
                'username')

        with override_settings(SAML_DJANGO_USER_MAIN_ATTRIBUTE='foo'):
            self.assertEqual(backend.get_django_user_main_attribute(), 'foo')

def test_form_init(self, mock_get_user_model):
        mock_get_user_model.return_value = User
        initial_data = {'username': 'username', 'password': 'password',
                        'login_server': '202.141.80.10'}
        form = WebmailLoginForm(data=initial_data)
        self.assertIsInstance(form.fields['username'], forms.CharField)
        self.assertIsInstance(form.fields['password'], forms.CharField)
        self.assertIsInstance(form.fields['password'].widget, forms.PasswordInput)
        self.assertEqual(form.data.get('username'),
                         initial_data.get('username'))
        self.assertEqual(form.data.get('password'),
                         initial_data.get('password'))
        self.assertEqual(form.data.get('login_server'),
                         initial_data.get('login_server'))
        self.assertEqual(form.port, poplib.POP3_SSL_PORT)
        self.assertEqual(form.username_field.verbose_name, User.USERNAME_FIELD)

def get_username_field():
    try:
        username_field = User.USERNAME_FIELD
    except AttributeError:
        username_field = 'username'

    return username_field

def setUp(self):
        Group.objects.create(name='group1')
        Group.objects.create(name='group2')
        Group.objects.create(name='group3')
        User.objects.create(**{
            User.USERNAME_FIELD: "locked_user",
            "is_active": False
        })