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/*
*
* Copyright 2018 gRPC authors.
*
* 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.
*
*/
#include <grpc/support/port_platform.h>
#include "test/cpp/util/channel_trace_proto_helper.h"
#include <grpc/grpc.h>
#include <grpc/support/log.h>
#include <grpcpp/impl/codegen/config.h>
#include <grpcpp/impl/codegen/config_protobuf.h>
#include <gtest/gtest.h>
#include "src/core/lib/iomgr/error.h"
#include "src/core/lib/json/json.h"
#include "src/proto/grpc/channelz/channelz.pb.h"
namespace grpc {
namespace {
// Generic helper that takes in a json string, converts it to a proto, and
// then back to json. This ensures that the json string was correctly formatted
// according to https://developers.google.com/protocol-buffers/docs/proto3#json
template <typename Message>
void VaidateProtoJsonTranslation(const TString& json_str) {
Message msg;
grpc::protobuf::json::JsonParseOptions parse_options;
// If the following line is failing, then uncomment the last line of the
// comment, and uncomment the lines that print the two strings. You can
// then compare the output, and determine what fields are missing.
//
// parse_options.ignore_unknown_fields = true;
grpc::protobuf::util::Status s =
grpc::protobuf::json::JsonStringToMessage(json_str, &msg, parse_options);
EXPECT_TRUE(s.ok());
TString proto_json_str;
grpc::protobuf::json::JsonPrintOptions print_options;
// We usually do not want this to be true, however it can be helpful to
// uncomment and see the output produced then all fields are printed.
// print_options.always_print_primitive_fields = true;
s = grpc::protobuf::json::MessageToJsonString(msg, &proto_json_str);
EXPECT_TRUE(s.ok());
// Parse JSON and re-dump to string, to make sure formatting is the
// same as what would be generated by our JSON library.
grpc_error* error = GRPC_ERROR_NONE;
grpc_core::Json parsed_json =
grpc_core::Json::Parse(proto_json_str.c_str(), &error);
ASSERT_EQ(error, GRPC_ERROR_NONE) << grpc_error_string(error);
ASSERT_EQ(parsed_json.type(), grpc_core::Json::Type::OBJECT);
proto_json_str = parsed_json.Dump();
// uncomment these to compare the json strings.
// gpr_log(GPR_ERROR, "tracer json: %s", json_str.c_str());
// gpr_log(GPR_ERROR, "proto json: %s", proto_json_str.c_str());
EXPECT_EQ(json_str, proto_json_str);
}
} // namespace
namespace testing {
void ValidateChannelTraceProtoJsonTranslation(const char* json_c_str) {
VaidateProtoJsonTranslation<grpc::channelz::v1::ChannelTrace>(json_c_str);
}
void ValidateChannelProtoJsonTranslation(const char* json_c_str) {
VaidateProtoJsonTranslation<grpc::channelz::v1::Channel>(json_c_str);
}
void ValidateGetTopChannelsResponseProtoJsonTranslation(
const char* json_c_str) {
VaidateProtoJsonTranslation<grpc::channelz::v1::GetTopChannelsResponse>(
json_c_str);
}
void ValidateGetChannelResponseProtoJsonTranslation(const char* json_c_str) {
VaidateProtoJsonTranslation<grpc::channelz::v1::GetChannelResponse>(
json_c_str);
}
void ValidateGetServerResponseProtoJsonTranslation(const char* json_c_str) {
VaidateProtoJsonTranslation<grpc::channelz::v1::GetServerResponse>(
json_c_str);
}
void ValidateSubchannelProtoJsonTranslation(const char* json_c_str) {
VaidateProtoJsonTranslation<grpc::channelz::v1::Subchannel>(json_c_str);
}
void ValidateServerProtoJsonTranslation(const char* json_c_str) {
VaidateProtoJsonTranslation<grpc::channelz::v1::Server>(json_c_str);
}
void ValidateGetServersResponseProtoJsonTranslation(const char* json_c_str) {
VaidateProtoJsonTranslation<grpc::channelz::v1::GetServersResponse>(
json_c_str);
}
} // namespace testing
} // namespace grpc
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