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Editing: proto_builder_test.py

#
# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc.  All rights reserved.
# https://developers.google.com/protocol-buffers/
#
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# 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.
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"""Tests for google.protobuf.proto_builder."""

try:
    from collections import OrderedDict
except ImportError:
    from ordereddict import OrderedDict  #PY26
try:
  import unittest2 as unittest
except ImportError:
  import unittest

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(unittest.TestCase):

def setUp(self):
    self.ordered_fields = OrderedDict([
        ('foo', descriptor_pb2.FieldDescriptorProto.TYPE_INT64),
        ('bar', descriptor_pb2.FieldDescriptorProto.TYPE_STRING),
        ])
    self._fields = dict(self.ordered_fields)

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 testOrderedFields(self):
    """Test that the field order is maintained when given an OrderedDict."""
    proto_cls = proto_builder.MakeSimpleProtoClass(
        self.ordered_fields,
        full_name='net.proto2.python.public.proto_builder_test.OrderedTest')
    proto = proto_cls()
    proto.foo = 12345
    proto.bar = 'asdf'
    self.assertMultiLineEqual(
        'foo: 12345\nbar: "asdf"\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__':
  unittest.main()

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