#! /usr/bin/python
#
# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc.  All rights reserved.
# https://developers.google.com/protocol-buffers/
#
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# Verify that prebuild and checkedin version of descriptor_pb2.py is up to date.

from google3.pyglib import resources
from google.apputils import basetest

_DESC = 'google3/net/proto2/proto/descriptor_pb2.'
_OLD = _DESC + 'py-prebuilt'
_NEW = _DESC + 'compiled'


class PregeneratedFileChanged(basetest.TestCase):

  def testSameText(self):
    generated = resources.GetResource(_NEW)
    checkedin = resources.GetResource(_OLD)
    self.assertMultiLineEqual(
        generated, checkedin, 'It seems that protoc _pb2 generator changed. '
        'Please run google/protobuf/generate_descriptor_proto.sh to '
        'regnerate a new version of %s and add it to your CL' % _OLD)

if __name__ == '__main__':
  basetest.main()