Function TEST

depends/protobuf/google/protobuf/compiler/cpp/cpp_unittest.cc:98–122

Test that generated code has proper descriptors: Parse a descriptor directly (using google::protobuf::compiler::Importer) and compare it to the one that was produced by generated code.

// Parse a descriptor directly (using google::protobuf::compiler::Importer) and
// compare it to the one that was produced by generated code.
TEST(GeneratedDescriptorTest, IdenticalDescriptors) {
  const FileDescriptor* generated_descriptor =
    unittest::TestAllTypes::descriptor()->file();

  // Set up the Importer.
  MockErrorCollector error_collector;
  DiskSourceTree source_tree;
  source_tree.MapPath("", TestSourceDir());
  Importer importer(&source_tree, &error_collector);

  // Import (parse) unittest.proto.
  const FileDescriptor* parsed_descriptor =
    importer.Import("google/protobuf/unittest.proto");
  EXPECT_EQ("", error_collector.text_);
  ASSERT_TRUE(parsed_descriptor != NULL);

  // Test that descriptors are generated correctly by converting them to
  // FileDescriptorProtos and comparing.
  FileDescriptorProto generated_decsriptor_proto, parsed_descriptor_proto;
  generated_descriptor->CopyTo(&generated_decsriptor_proto);
  parsed_descriptor->CopyTo(&parsed_descriptor_proto);

  EXPECT_EQ(parsed_descriptor_proto.DebugString(),
            generated_decsriptor_proto.DebugString());
}

#endif  // !PROTOBUF_TEST_NO_DESCRIPTORS