| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. |
| // http://code.google.com/p/protobuf/ |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| // Author: kenton@google.com (Kenton Varda) |
| // Based on original Protocol Buffers design by |
| // Sanjay Ghemawat, Jeff Dean, and others. |
| // |
| // This test insures that google/protobuf/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/compiler/cpp/cpp_generator.h> |
| #include <google/protobuf/compiler/importer.h> |
| #include <google/protobuf/descriptor.h> |
| #include <google/protobuf/io/zero_copy_stream_impl.h> |
| #include <google/protobuf/stubs/stl_util-inl.h> |
| #include <google/protobuf/stubs/map-util.h> |
| #include <google/protobuf/stubs/strutil.h> |
| #include <google/protobuf/stubs/substitute.h> |
| |
| #include <google/protobuf/testing/file.h> |
| #include <google/protobuf/testing/googletest.h> |
| #include <gtest/gtest.h> |
| |
| namespace google { |
| namespace protobuf { |
| namespace compiler { |
| namespace cpp { |
| |
| namespace { |
| |
| class MockErrorCollector : public MultiFileErrorCollector { |
| public: |
| MockErrorCollector() {} |
| ~MockErrorCollector() {} |
| |
| string text_; |
| |
| // implements ErrorCollector --------------------------------------- |
| void AddError(const string& filename, int line, int column, |
| const string& message) { |
| strings::SubstituteAndAppend(&text_, "$0:$1:$2: $3\n", |
| filename, line, column, message); |
| } |
| }; |
| |
| class MockOutputDirectory : public OutputDirectory { |
| public: |
| MockOutputDirectory() {} |
| ~MockOutputDirectory() { |
| STLDeleteValues(&files_); |
| } |
| |
| void ExpectFileMatches(const string& virtual_filename, |
| const string& physical_filename) { |
| string* expected_contents = FindPtrOrNull(files_, virtual_filename); |
| ASSERT_TRUE(expected_contents != NULL) |
| << "Generator failed to generate file: " << virtual_filename; |
| |
| string actual_contents; |
| File::ReadFileToStringOrDie( |
| TestSourceDir() + "/" + physical_filename, |
| &actual_contents); |
| EXPECT_TRUE(actual_contents == *expected_contents) |
| << physical_filename << " needs to be regenerated. Please run " |
| "generate_descriptor_proto.sh and add this file " |
| "to your CL."; |
| } |
| |
| // implements OutputDirectory -------------------------------------- |
| |
| virtual io::ZeroCopyOutputStream* Open(const string& filename) { |
| string** map_slot = &files_[filename]; |
| if (*map_slot != NULL) delete *map_slot; |
| *map_slot = new string; |
| |
| return new io::StringOutputStream(*map_slot); |
| } |
| |
| private: |
| map<string, string*> files_; |
| }; |
| |
| TEST(BootstrapTest, GeneratedDescriptorMatches) { |
| MockErrorCollector error_collector; |
| DiskSourceTree source_tree; |
| source_tree.MapPath("", TestSourceDir()); |
| Importer importer(&source_tree, &error_collector); |
| const FileDescriptor* proto_file = |
| importer.Import("google/protobuf/descriptor.proto"); |
| EXPECT_EQ("", error_collector.text_); |
| ASSERT_TRUE(proto_file != NULL); |
| |
| CppGenerator generator; |
| MockOutputDirectory output_directory; |
| string error; |
| string parameter; |
| parameter = "dllexport_decl=LIBPROTOBUF_EXPORT"; |
| ASSERT_TRUE(generator.Generate(proto_file, parameter, |
| &output_directory, &error)); |
| |
| output_directory.ExpectFileMatches("google/protobuf/descriptor.pb.h", |
| "google/protobuf/descriptor.pb.h"); |
| output_directory.ExpectFileMatches("google/protobuf/descriptor.pb.cc", |
| "google/protobuf/descriptor.pb.cc"); |
| } |
| |
| } // namespace |
| |
| } // namespace cpp |
| } // namespace compiler |
| } // namespace protobuf |
| |
| } // namespace google |