NUL in database name should raise InvalidName

import pymongo

c = pymongo.Connection()

coll = c[u'x\u0000'].test

coll.create_index([('x',1)])

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

  File "/usr/lib/python2.7/dist-packages/pymongo/collection.py", line 715, in create_index

    safe=True)

  File "/usr/lib/python2.7/dist-packages/pymongo/collection.py", line 312, in insert

    continue_on_error, self.__uuid_subtype), safe)

  File "/usr/lib/python2.7/dist-packages/pymongo/connection.py", line 822, in _send_message

    return self.__check_response_to_last_error(response)

  File "/usr/lib/python2.7/dist-packages/pymongo/connection.py", line 772, in __check_response_to_last_error

    raise OperationFailure(error["err"], error["code"])

pymongo.errors.OperationFailure: Invalid BSONObj size: 1937339182 (0x2E737973) first element: em.indexes: ?type=116