django-rest-framework/tests/test_serializer_import.py

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from django.test import TestCase
from rest_framework import serializers
from tests.accounts.serializers import AccountSerializer
class ImportingModelSerializerTests(TestCase):
"""
In some situations like, GH #1225, it is possible, especially in
testing, to import a serializer who's related models have not yet
been resolved by Django. `AccountSerializer` is an example of such
a serializer (imported at the top of this file).
"""
def test_import_model_serializer(self):
"""
The serializer at the top of this file should have been
imported successfully, and we should be able to instantiate it.
"""
self.assertIsInstance(AccountSerializer(), serializers.ModelSerializer)