1 files changed, 67 insertions, 0 deletions
diff --git a/tests/test_multitable_inheritance.py b/tests/test_multitable_inheritance.py
new file mode 100644
index 00000000..15627e1d
--- /dev/null
+++ b/tests/test_multitable_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
+class ParentModel(RESTFrameworkModel):
+    name1 = models.CharField(max_length=100)
+
+
+class ChildModel(ParentModel):
+    name2 = models.CharField(max_length=100)
+
+
+class AssociatedModel(RESTFrameworkModel):
+    ref = models.OneToOneField(ParentModel, primary_key=True)
+    name = models.CharField(max_length=100)
+
+
+# Serializers
+class DerivedModelSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = ChildModel
+
+
+class AssociatedModelSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = AssociatedModel
+
+
+# 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']))
+
+    def test_onetoone_primary_key_model_fields_as_expected(self):
+        """
+        Assert that a model with a onetoone field that is the primary key is
+        not treated like a derived model
+        """
+        parent = ParentModel.objects.create(name1='parent name')
+        associate = AssociatedModel.objects.create(name='hello', ref=parent)
+        serializer = AssociatedModelSerializer(associate)
+        self.assertEqual(set(serializer.data.keys()),
+                         set(['name', 'ref']))
+
+    def test_data_is_valid_without_parent_ptr(self):
+        """
+        Assert that the pointer to the parent table is not a required field
+        for input data
+        """
+        data = {
+            'name1': 'parent name',
+            'name2': 'child name',
+        }
+        serializer = DerivedModelSerializer(data=data)
+        self.assertEqual(serializer.is_valid(), True)