check type

Author: prashantmital

bson/json_util.py

@@ -508,6 +508,8 @@ def _parse_legacy_uuid(doc, json_options):
     """Decode a JSON legacy $uuid to Python UUID."""
     if len(doc) != 1:
         raise TypeError('Bad $uuid, extra field(s): %s' % (doc,))
+    if not isinstance(doc["$uuid"], text_type):
+        raise TypeError('$uuid must be a string: %s' % (doc,))
     if json_options.uuid_representation == UuidRepresentation.UNSPECIFIED:
         return Binary.from_uuid(uuid.UUID(doc["$uuid"]))
     else:

test/test_bson_corpus.py

@@ -210,7 +210,7 @@ def run_test(self):
                     decode_extjson(parse_error_case['string'])
                     raise AssertionError('exception not raised for test '
                                          'case: ' + description)
-                except (AttributeError, ValueError):
+                except (TypeError, ValueError):
                     pass
             else:
                 raise AssertionError('cannot test parseErrors for type ' +