def test_does_not_append_charset_by_default(self):
        headers = {"HTTP_ACCEPT": RendererA.media_type}
        resp = self.client.get('/', **headers)
        expected = "{0}; charset={1}".format(RendererA.media_type, 'utf-8')
        self.assertEqual(expected, resp['Content-Type'])
Renderers don't include a charset unless set explicitly.
dataset/ETHPy150Open tomchristie/django-rest-framework/tests/test_response.py/Issue807Tests.test_does_not_append_charset_by_default