src/google/protobuf/proto_cast_test.cc

// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
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#include <google/protobuf/util/proto_cast.h>

#include <google/protobuf/util/unknown_enum_test.pb.h>
#include <gtest/gtest.h>
#include <google/protobuf/testing/gmock.h>

namespace google {
using google::protobuf::util::UpRevision;
using google::protobuf::util::DownRevision;

namespace {

TEST(ProtoCastTest, V2KnownValue) {
  UpRevision sender;
  sender.set_value(UpRevision::NONDEFAULT_VALUE);

  DownRevision receiver = proto_cast<DownRevision>(sender);
  ASSERT_EQ(DownRevision::NONDEFAULT_VALUE, receiver.value());
}

TEST(ProtoCastTest, V2UnknownValue) {
  UpRevision sender;
  sender.set_value(UpRevision::NEW_VALUE);

  DownRevision receiver = proto_cast<DownRevision>(sender);
  ASSERT_EQ(DownRevision::DEFAULT_VALUE, receiver.value());
}

}  // namespace
}  // namespace google