diff options
author | temporal <temporal@630680e5-0e50-0410-840e-4b1c322b438d> | 2008-07-10 02:12:20 +0000 |
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committer | temporal <temporal@630680e5-0e50-0410-840e-4b1c322b438d> | 2008-07-10 02:12:20 +0000 |
commit | 40ee551715c3a784ea6132dbf604b0e665ca2def (patch) | |
tree | 6e3ea9674be5b0f59106f88f3afa1313854beebf /src/google/protobuf/compiler/cpp/cpp_bootstrap_unittest.cc |
Initial checkin.
Diffstat (limited to 'src/google/protobuf/compiler/cpp/cpp_bootstrap_unittest.cc')
-rw-r--r-- | src/google/protobuf/compiler/cpp/cpp_bootstrap_unittest.cc | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/src/google/protobuf/compiler/cpp/cpp_bootstrap_unittest.cc b/src/google/protobuf/compiler/cpp/cpp_bootstrap_unittest.cc new file mode 100644 index 00000000..daa66c8c --- /dev/null +++ b/src/google/protobuf/compiler/cpp/cpp_bootstrap_unittest.cc @@ -0,0 +1,135 @@ +// 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 |