django-rest-framework/tests/test_one_to_one_with_inheritance.py

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from __future__ import unicode_literals
from django.db import models
from django.test import TestCase
from rest_framework import serializers
from tests.models import RESTFrameworkModel
# Models
from tests.test_multitable_inheritance import ChildModel
# Regression test for #4290
class ChildAssociatedModel(RESTFrameworkModel):
child_model = models.OneToOneField(ChildModel, on_delete=models.CASCADE)
child_name = models.CharField(max_length=100)
# Serializers
class DerivedModelSerializer(serializers.ModelSerializer):
class Meta:
model = ChildModel
fields = ['id', 'name1', 'name2', 'childassociatedmodel']
class ChildAssociatedModelSerializer(serializers.ModelSerializer):
class Meta:
model = ChildAssociatedModel
fields = ['id', 'child_name']
# Tests
class InheritedModelSerializationTests(TestCase):
def test_multitable_inherited_model_fields_as_expected(self):
"""
Assert that the parent pointer field is not included in the fields
serialized fields
"""
child = ChildModel(name1='parent name', name2='child name')
serializer = DerivedModelSerializer(child)
self.assertEqual(set(serializer.data.keys()),
set(['name1', 'name2', 'id', 'childassociatedmodel']))