def METHOD_NAME(self):
    content = u"\u3053\u3093\u306b\u3061\u308f"
    json_doc = codecs.BOM_UTF8 + b(json.dumps(content))
    self.assertEqual(json.load(BytesIO(json_doc)), content)
    for doc in json_doc, json_doc.decode('utf8'):
        self.assertEqual(json.loads(doc), content)