tests.py 文件源码

def test_create_instance(self):
        instance = TestEChoiceFieldEFloatChoicesModel.objects.create(choice=ETestFloatChoices.FIELD1)
        choice = instance.choice
        self.assertIsInstance(choice, ETestFloatChoices)
        self.assertIs(choice, ETestFloatChoices.FIELD1)
        self.assertEqual(choice.value, 1.0)
        self.assertEqual(choice.label, 'Label 1')
        if StrictVersion(django_version()) < StrictVersion('1.9.0'):
            self.assertEqual(instance._meta.fields[1].__class__.__name__, 'EChoiceField')
        else:
            self.assertEqual(instance._meta.fields[1].__class__.__name__, 'ETestFloatChoicesField')
        self.assertEqual(instance._meta.fields[1].choices, ETestFloatChoices.choices())
        # Default value
        self.assertIs(instance._meta.fields[1].default, models.fields.NOT_PROVIDED)
        self.assertIs(instance._meta.fields[1].get_default(), None)
        # to_python()
        self.assertRaisesMessage(exceptions.ValidationError, '["\'foo\' value must be a float."]',
                                 instance._meta.fields[1].to_python, 'foo')
        # Custom flatchoices
        self.assertEqual(instance._meta.fields[1].flatchoices,
                         [(ETestFloatChoices.FIELD1, 'Label 1'), (ETestFloatChoices.FIELD2, 'Label 2')])
        instance.delete()