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// 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.
// Author: kenton@google.com (Kenton Varda)
// Based on original Protocol Buffers design by
// Sanjay Ghemawat, Jeff Dean, and others.
//
// This test insures that net/proto2/proto/descriptor.pb.{h,cc} match exactly
// what would be generated by the protocol compiler. These files are not
// generated automatically at build time because they are compiled into the
// protocol compiler itself. So, if they were auto-generated, you'd have a
// chicken-and-egg problem.
//
// If this test fails, run the script
// "generate_descriptor_proto.sh" and add
// descriptor.pb.{h,cc} to your changelist.
#include <map>
#include <testing/file.h>
#include <testing/file.h>
#include <compiler/cpp/cpp_helpers.h>
#include <compiler/cpp/cpp_generator.h>
#include <compiler/importer.h>
#include <test_util2.h>
#include <io/zero_copy_stream_impl.h>
#include <descriptor.h>
#include <stubs/strutil.h>
#include <testing/googletest.h>
#include <gtest/gtest.h>
#include <stubs/substitute.h>
#include <stubs/map_util.h>
#include <stubs/stl_util.h>
namespace google {
namespace protobuf {
namespace compiler {
namespace cpp {
namespace {
class MockErrorCollector : public MultiFileErrorCollector {
public:
MockErrorCollector() {}
~MockErrorCollector() {}
std::string text_;
// implements ErrorCollector ---------------------------------------
void AddError(const std::string& filename, int line, int column,
const std::string& message) {
strings::SubstituteAndAppend(&text_, "$0:$1:$2: $3\n", filename, line, column,
message);
}
};
class MockGeneratorContext : public GeneratorContext {
public:
void ExpectFileMatches(const std::string& virtual_filename,
const std::string& physical_filename) {
auto it = files_.find(virtual_filename);
ASSERT_TRUE(it != files_.end())
<< "Generator failed to generate file: " << virtual_filename;
std::string expected_contents = *it->second;
std::string actual_contents;
GOOGLE_CHECK_OK(
File::GetContents(TestUtil::TestSourceDir() + "/" + physical_filename,
&actual_contents, true))
<< physical_filename;
CleanStringLineEndings(&actual_contents, false);
#ifdef WRITE_FILES // Define to debug mismatched files.
GOOGLE_CHECK_OK(File::SetContents("/tmp/expected.cc", expected_contents,
true));
GOOGLE_CHECK_OK(
File::SetContents("/tmp/actual.cc", actual_contents, true));
#endif
ASSERT_EQ(expected_contents, actual_contents)
<< physical_filename
<< " needs to be regenerated. Please run "
"generate_descriptor_proto.sh. "
"Then add this file to your CL.";
}
// implements GeneratorContext --------------------------------------
virtual io::ZeroCopyOutputStream* Open(const std::string& filename) {
auto& map_slot = files_[filename];
map_slot.reset(new std::string);
return new io::StringOutputStream(map_slot.get());
}
private:
std::map<std::string, std::unique_ptr<std::string>> files_;
};
const char kDescriptorParameter[] = "dllexport_decl=PROTOBUF_EXPORT";
const char kPluginParameter[] = "dllexport_decl=PROTOC_EXPORT";
const char* test_protos[][2] = {
{"google/protobuf/descriptor", kDescriptorParameter},
{"google/protobuf/compiler/plugin", kPluginParameter},
};
TEST(BootstrapTest, GeneratedFilesMatch) {
// We need a mapping from the actual file to virtual and actual path
// of the data to compare to.
std::map<std::string, std::string> vpath_map;
std::map<std::string, std::string> rpath_map;
rpath_map["third_party/protobuf/src/google/protobuf/test_messages_proto2"] =
"net/proto2/z_generated_example/test_messages_proto2";
rpath_map["third_party/protobuf/src/google/protobuf/test_messages_proto3"] =
"net/proto2/z_generated_example/test_messages_proto3";
rpath_map["net/proto2/internal/proto2_weak"] =
"net/proto2/z_generated_example/proto2_weak";
DiskSourceTree source_tree;
source_tree.MapPath("", TestUtil::TestSourceDir());
for (auto file_parameter : test_protos) {
MockErrorCollector error_collector;
Importer importer(&source_tree, &error_collector);
const FileDescriptor* file =
importer.Import(file_parameter[0] + std::string(".proto"));
ASSERT_TRUE(file != nullptr)
<< "Can't import file " << file_parameter[0] + std::string(".proto")
<< "\n";
EXPECT_EQ("", error_collector.text_);
CppGenerator generator;
MockGeneratorContext context;
#ifdef GOOGLE_PROTOBUF_RUNTIME_INCLUDE_BASE
generator.set_opensource_runtime(true);
generator.set_runtime_include_base(GOOGLE_PROTOBUF_RUNTIME_INCLUDE_BASE);
#endif
std::string error;
ASSERT_TRUE(generator.Generate(file, file_parameter[1], &context, &error));
std::string vpath =
FindWithDefault(vpath_map, file_parameter[0], file_parameter[0]);
std::string rpath =
FindWithDefault(rpath_map, file_parameter[0], file_parameter[0]);
context.ExpectFileMatches(vpath + ".pb.cc", rpath + ".pb.cc");
context.ExpectFileMatches(vpath + ".pb.h", rpath + ".pb.h");
}
}
// test Generate in cpp_generator.cc
TEST(BootstrapTest, OptionNotExist) {
cpp::CppGenerator generator;
DescriptorPool pool;
GeneratorContext* generator_context = nullptr;
std::string parameter = "aaa";
std::string error;
ASSERT_FALSE(generator.Generate(
pool.FindFileByName("google/protobuf/descriptor.proto"), parameter,
generator_context, &error));
EXPECT_EQ(error, "Unknown generator option: " + parameter);
}
} // namespace
} // namespace cpp
} // namespace compiler
} // namespace protobuf
} // namespace google
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