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#include "tests/test_util.h"
#include "tests/upb_test.h"
#include "upb/bindings/stdc++/string.h"
#include "google/protobuf/descriptor.upb.h"
#include "upb/pb/decoder.h"
#include "upb/pb/encoder.h"
std::string read_string(const char *filename) {
size_t len;
char *str = upb_readfile(filename, &len);
ASSERT(str);
if (!str) { return std::string(); }
std::string ret = std::string(str, len);
free(str);
return ret;
}
void test_pb_roundtrip() {
std::string input = read_string("google/protobuf/descriptor.pb");
upb::SymbolTable symtab;
upb::HandlerCache encoder_cache(upb::pb::EncoderPtr::NewCache());
upb::pb::CodeCache decoder_cache(&encoder_cache);
upb::Arena arena;
google_protobuf_FileDescriptorSet *set =
google_protobuf_FileDescriptorSet_parse(input.c_str(), input.size(),
arena.ptr());
ASSERT(set);
size_t n;
const google_protobuf_FileDescriptorProto *const *files =
google_protobuf_FileDescriptorSet_file(set, &n);
ASSERT(n == 1);
upb::Status status;
upb::FileDefPtr file_def = symtab.AddFile(files[0], &status);
if (!file_def) {
fprintf(stderr, "Error building def: %s\n", status.error_message());
ASSERT(false);
}
upb::MessageDefPtr md =
symtab.LookupMessage("google.protobuf.FileDescriptorSet");
ASSERT(md);
const upb::Handlers *encoder_handlers = encoder_cache.Get(md);
ASSERT(encoder_handlers);
const upb::pb::DecoderMethodPtr method = decoder_cache.Get(md);
std::string output;
upb::StringSink string_sink(&output);
upb::pb::EncoderPtr encoder =
upb::pb::EncoderPtr::Create(&arena, encoder_handlers, string_sink.input());
upb::pb::DecoderPtr decoder =
upb::pb::DecoderPtr::Create(&arena, method, encoder.input(), &status);
bool ok = upb::PutBuffer(input, decoder.input());
ASSERT(ok);
ASSERT(input == output);
}
extern "C" {
int run_tests(int argc, char *argv[]) {
UPB_UNUSED(argc);
UPB_UNUSED(argv);
test_pb_roundtrip();
return 0;
}
}
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