| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // https://developers.google.com/protocol-buffers/ |
| // |
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| // met: |
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| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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| |
| // 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 <google/protobuf/testing/file.h> |
| #include <google/protobuf/testing/file.h> |
| #include <google/protobuf/compiler/cpp/generator.h> |
| #include <google/protobuf/compiler/importer.h> |
| #include <google/protobuf/test_util2.h> |
| #include <google/protobuf/io/zero_copy_stream_impl.h> |
| #include <google/protobuf/descriptor.h> |
| #include <google/protobuf/stubs/strutil.h> |
| #include <google/protobuf/testing/googletest.h> |
| #include <gtest/gtest.h> |
| #include <google/protobuf/stubs/substitute.h> |
| #include <google/protobuf/compiler/cpp/helpers.h> |
| #include <google/protobuf/stubs/map_util.h> |
| #include <google/protobuf/stubs/stl_util.h> |
| |
| namespace google { |
| namespace protobuf { |
| namespace compiler { |
| namespace cpp { |
| |
| namespace { |
| |
| class MockErrorCollector : public MultiFileErrorCollector { |
| public: |
| MockErrorCollector() {} |
| ~MockErrorCollector() override {} |
| |
| std::string text_; |
| |
| // implements ErrorCollector --------------------------------------- |
| void AddError(const std::string& filename, int line, int column, |
| const std::string& message) override { |
| 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 -------------------------------------- |
| |
| io::ZeroCopyOutputStream* Open(const std::string& filename) override { |
| 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/test_messages_proto2"] = |
| "net/proto2/z_generated_example/test_messages_proto2"; |
| rpath_map["third_party/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 |