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/*
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*
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* Copyright 2018 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#include <grpc/support/port_platform.h>
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#include "test/cpp/util/channel_trace_proto_helper.h"
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#include <grpc/grpc.h>
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#include <grpc/support/log.h>
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#include <grpcpp/impl/codegen/config.h>
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#include <grpcpp/impl/codegen/config_protobuf.h>
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#include <gtest/gtest.h>
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#include "src/core/lib/iomgr/error.h"
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#include "src/core/lib/json/json.h"
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#include "src/proto/grpc/channelz/channelz.pb.h"
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namespace grpc {
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namespace {
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// Generic helper that takes in a json string, converts it to a proto, and
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// then back to json. This ensures that the json string was correctly formatted
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// according to https://developers.google.com/protocol-buffers/docs/proto3#json
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template <typename Message>
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void VaidateProtoJsonTranslation(const std::string& json_str) {
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Message msg;
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grpc::protobuf::json::JsonParseOptions parse_options;
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// If the following line is failing, then uncomment the last line of the
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// comment, and uncomment the lines that print the two strings. You can
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// then compare the output, and determine what fields are missing.
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//
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// parse_options.ignore_unknown_fields = true;
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grpc::protobuf::util::Status s =
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grpc::protobuf::json::JsonStringToMessage(json_str, &msg, parse_options);
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EXPECT_TRUE(s.ok());
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grpc::string proto_json_str;
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grpc::protobuf::json::JsonPrintOptions print_options;
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// We usually do not want this to be true, however it can be helpful to
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// uncomment and see the output produced then all fields are printed.
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// print_options.always_print_primitive_fields = true;
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s = grpc::protobuf::json::MessageToJsonString(msg, &proto_json_str);
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EXPECT_TRUE(s.ok());
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// Parse JSON and re-dump to string, to make sure formatting is the
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// same as what would be generated by our JSON library.
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grpc_error* error = GRPC_ERROR_NONE;
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grpc_core::Json parsed_json =
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grpc_core::Json::Parse(proto_json_str.c_str(), &error);
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ASSERT_EQ(error, GRPC_ERROR_NONE) << grpc_error_string(error);
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ASSERT_EQ(parsed_json.type(), grpc_core::Json::Type::OBJECT);
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proto_json_str = parsed_json.Dump();
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// uncomment these to compare the json strings.
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// gpr_log(GPR_ERROR, "tracer json: %s", json_str.c_str());
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// gpr_log(GPR_ERROR, "proto json: %s", proto_json_str.c_str());
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EXPECT_EQ(json_str, proto_json_str);
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}
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} // namespace
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namespace testing {
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void ValidateChannelTraceProtoJsonTranslation(const char* json_c_str) {
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VaidateProtoJsonTranslation<grpc::channelz::v1::ChannelTrace>(json_c_str);
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}
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void ValidateChannelProtoJsonTranslation(const char* json_c_str) {
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VaidateProtoJsonTranslation<grpc::channelz::v1::Channel>(json_c_str);
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}
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void ValidateGetTopChannelsResponseProtoJsonTranslation(
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const char* json_c_str) {
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VaidateProtoJsonTranslation<grpc::channelz::v1::GetTopChannelsResponse>(
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json_c_str);
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}
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void ValidateGetChannelResponseProtoJsonTranslation(const char* json_c_str) {
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VaidateProtoJsonTranslation<grpc::channelz::v1::GetChannelResponse>(
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json_c_str);
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}
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void ValidateGetServerResponseProtoJsonTranslation(const char* json_c_str) {
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VaidateProtoJsonTranslation<grpc::channelz::v1::GetServerResponse>(
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json_c_str);
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}
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void ValidateSubchannelProtoJsonTranslation(const char* json_c_str) {
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VaidateProtoJsonTranslation<grpc::channelz::v1::Subchannel>(json_c_str);
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}
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void ValidateServerProtoJsonTranslation(const char* json_c_str) {
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VaidateProtoJsonTranslation<grpc::channelz::v1::Server>(json_c_str);
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}
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void ValidateGetServersResponseProtoJsonTranslation(const char* json_c_str) {
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VaidateProtoJsonTranslation<grpc::channelz::v1::GetServersResponse>(
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json_c_str);
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}
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} // namespace testing
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} // namespace grpc
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