python/google/protobuf/internal/proto_builder_test.py

#! /usr/bin/python
#
# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc.  All rights reserved.
# https://developers.google.com/protocol-buffers/
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
#     * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#     * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

"""Tests for google.protobuf.proto_builder."""

from google.apputils import basetest

from google.protobuf import descriptor_pb2
from google.protobuf import descriptor_pool
from google.protobuf import proto_builder
from google.protobuf import text_format


class ProtoBuilderTest(basetest.TestCase):

  def setUp(self):
    self._fields = {
        'foo': descriptor_pb2.FieldDescriptorProto.TYPE_INT64,
        'bar': descriptor_pb2.FieldDescriptorProto.TYPE_STRING,
        }

  def testMakeSimpleProtoClass(self):
    """Test that we can create a proto class."""
    proto_cls = proto_builder.MakeSimpleProtoClass(
        self._fields,
        full_name='net.proto2.python.public.proto_builder_test.Test')
    proto = proto_cls()
    proto.foo = 12345
    proto.bar = 'asdf'
    self.assertMultiLineEqual(
        'bar: "asdf"\nfoo: 12345\n', text_format.MessageToString(proto))

  def testMakeSameProtoClassTwice(self):
    """Test that the DescriptorPool is used."""
    pool = descriptor_pool.DescriptorPool()
    proto_cls1 = proto_builder.MakeSimpleProtoClass(
        self._fields,
        full_name='net.proto2.python.public.proto_builder_test.Test',
        pool=pool)
    proto_cls2 = proto_builder.MakeSimpleProtoClass(
        self._fields,
        full_name='net.proto2.python.public.proto_builder_test.Test',
        pool=pool)
    self.assertIs(proto_cls1.DESCRIPTOR, proto_cls2.DESCRIPTOR)


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