1 files changed, 172 insertions, 0 deletions
diff --git a/third_party/protobuf/3.6.0/src/google/protobuf/compiler/cpp/cpp_bootstrap_unittest.cc b/third_party/protobuf/3.6.0/src/google/protobuf/compiler/cpp/cpp_bootstrap_unittest.cc
new file mode 100644
index 0000000000..4e150fe3d6
--- /dev/null
+++ b/third_party/protobuf/3.6.0/src/google/protobuf/compiler/cpp/cpp_bootstrap_unittest.cc
@@ -0,0 +1,172 @@
+// 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 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_helpers.h>
+#include <google/protobuf/compiler/cpp/cpp_generator.h>
+#include <google/protobuf/compiler/importer.h>
+#include <google/protobuf/io/zero_copy_stream_impl.h>
+#include <google/protobuf/descriptor.h>
+#include <google/protobuf/stubs/substitute.h>
+#include <google/protobuf/stubs/map_util.h>
+#include <google/protobuf/stubs/stl_util.h>
+
+#include <google/protobuf/testing/file.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 MockGeneratorContext : public GeneratorContext {
+ public:
+  MockGeneratorContext() {}
+  ~MockGeneratorContext() {
+    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;
+    GOOGLE_CHECK_OK(
+        File::GetContents(TestSourceDir() + "/" + physical_filename,
+                          &actual_contents, true));
+    EXPECT_TRUE(actual_contents == *expected_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 string& filename) {
+    string** map_slot = &files_[filename];
+    delete *map_slot;
+    *map_slot = new string;
+
+    return new io::StringOutputStream(*map_slot);
+  }
+
+ private:
+  std::map<string, string*> files_;
+};
+
+const char kDescriptorParameter[] = "dllexport_decl=LIBPROTOBUF_EXPORT";
+const char kPluginParameter[] = "dllexport_decl=LIBPROTOC_EXPORT";
+const char kNormalParameter[] = "";
+
+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<string, string> vpath_map;
+  std::map<string, 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["google/protobuf/proto2_weak"] =
+      "net/proto2/z_generated_example/proto2_weak";
+
+  DiskSourceTree source_tree;
+  source_tree.MapPath("", TestSourceDir());
+
+  for (auto file_parameter : test_protos) {
+    MockErrorCollector error_collector;
+    Importer importer(&source_tree, &error_collector);
+    const FileDescriptor* file =
+        importer.Import(file_parameter[0] + string(".proto"));
+    ASSERT_TRUE(file != nullptr)
+        << "Can't import file " << file_parameter[0] + string(".proto") << "\n";
+    EXPECT_EQ("", error_collector.text_);
+    CppGenerator generator;
+    MockGeneratorContext context;
+    string error;
+    ASSERT_TRUE(generator.Generate(file, file_parameter[1], &context, &error));
+
+    string vpath =
+        FindWithDefault(vpath_map, file_parameter[0], file_parameter[0]);
+    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");
+  }
+}
+
+}  // namespace
+
+}  // namespace cpp
+}  // namespace compiler
+}  // namespace protobuf
+}  // namespace google