Test a view with a JSONfield: 415 Unsupported Media Type

[Sispheor]

Hi,

I'm trying to unit test the update of an object that contains a JSONField

Model

class Instance(models.Model):
    name = models.CharField(max_length=100)
    spec = models.JSONField(default=dict)

Serializer

class InstanceSerializer(serializers.ModelSerializer):

    class Meta:
        model = Instance
        fields = '__all__'

View

class InstanceDetails(generics.RetrieveUpdateAPIView):
    permission_classes = [IsAdminUser]
    queryset = Instance.objects.all()
    serializer_class = InstanceSerializer

Test

class TestInstanceUpdate(BaseTestRequest):

    def setUp(self):
        super(TestInstanceUpdate, self).setUp()
        self.url = reverse('api_admin_instance_details', args=[self.test_instance.id])
        json_spec = {
                "key1": "value1",
                "key2": "value2"
            }
        self.update_data = {
            "name": "new_name",
            "spec": json.dumps(json_spec)
        }

    def test_update_instance(self):
        response = self.client.put(self.url, data=self.update_data, format='json')
        print(response)
        self.assertEqual(response.status_code, status.HTTP_200_OK)

I get status code 415 Unsupported Media Type.
I tried without the json dumps. Same behavior.

I would like to be able to send json like other flags of my request and not as a binary.
Is that possible?

Many thanks for your help.

[Sispheor]

Well... without the dumps it actually works as expected

class TestInstanceUpdate(BaseTestRequest):

    def setUp(self):
        super(TestInstanceUpdate, self).setUp()
        self.url = reverse('api_admin_instance_details', args=[self.test_instance.id])

        self.update_data = {
            "name": "new_name",
            "spec": {
                "key1": "value1",
                "key2": "value2"
            }
        }

    def test_update_instance(self):
        response = self.client.put(self.url, data=self.update_data, content_type="application/json")
        self.assertEqual(response.status_code, status.HTTP_200_OK)
        self.test_instance.refresh_from_db()
        expected = {
                "key1": "value1",
                "key2": "value2"
            }
        self.assertDictEqual(self.test_instance.spec, expected)
        self.assertEqual(self.test_instance.name, "new_name")