3 * Copyright 2018 gRPC authors.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
19 #include <grpc/support/port_platform.h>
21 #include "test/cpp/util/channel_trace_proto_helper.h"
23 #include <gtest/gtest.h>
25 #include <grpc/grpc.h>
26 #include <grpc/support/log.h>
27 #include <grpcpp/impl/codegen/config.h>
28 #include <grpcpp/impl/codegen/config_protobuf.h>
30 #include "src/core/lib/iomgr/error.h"
31 #include "src/core/lib/json/json.h"
32 #include "src/proto/grpc/channelz/channelz.pb.h"
38 // Generic helper that takes in a json string, converts it to a proto, and
39 // then back to json. This ensures that the json string was correctly formatted
40 // according to https://developers.google.com/protocol-buffers/docs/proto3#json
41 template <typename Message>
42 void VaidateProtoJsonTranslation(const std::string& json_str) {
44 grpc::protobuf::json::JsonParseOptions parse_options;
45 // If the following line is failing, then uncomment the last line of the
46 // comment, and uncomment the lines that print the two strings. You can
47 // then compare the output, and determine what fields are missing.
49 // parse_options.ignore_unknown_fields = true;
50 grpc::protobuf::util::Status s =
51 grpc::protobuf::json::JsonStringToMessage(json_str, &msg, parse_options);
53 std::string proto_json_str;
54 grpc::protobuf::json::JsonPrintOptions print_options;
55 // We usually do not want this to be true, however it can be helpful to
56 // uncomment and see the output produced then all fields are printed.
57 // print_options.always_print_primitive_fields = true;
58 s = grpc::protobuf::json::MessageToJsonString(msg, &proto_json_str);
60 // Parse JSON and re-dump to string, to make sure formatting is the
61 // same as what would be generated by our JSON library.
62 grpc_error_handle error = GRPC_ERROR_NONE;
63 grpc_core::Json parsed_json =
64 grpc_core::Json::Parse(proto_json_str.c_str(), &error);
65 ASSERT_EQ(error, GRPC_ERROR_NONE) << grpc_error_std_string(error);
66 ASSERT_EQ(parsed_json.type(), grpc_core::Json::Type::OBJECT);
67 proto_json_str = parsed_json.Dump();
68 // uncomment these to compare the json strings.
69 // gpr_log(GPR_ERROR, "tracer json: %s", json_str.c_str());
70 // gpr_log(GPR_ERROR, "proto json: %s", proto_json_str.c_str());
71 EXPECT_EQ(json_str, proto_json_str);
78 void ValidateChannelTraceProtoJsonTranslation(const char* json_c_str) {
79 VaidateProtoJsonTranslation<grpc::channelz::v1::ChannelTrace>(json_c_str);
82 void ValidateChannelProtoJsonTranslation(const char* json_c_str) {
83 VaidateProtoJsonTranslation<grpc::channelz::v1::Channel>(json_c_str);
86 void ValidateGetTopChannelsResponseProtoJsonTranslation(
87 const char* json_c_str) {
88 VaidateProtoJsonTranslation<grpc::channelz::v1::GetTopChannelsResponse>(
92 void ValidateGetChannelResponseProtoJsonTranslation(const char* json_c_str) {
93 VaidateProtoJsonTranslation<grpc::channelz::v1::GetChannelResponse>(
97 void ValidateGetServerResponseProtoJsonTranslation(const char* json_c_str) {
98 VaidateProtoJsonTranslation<grpc::channelz::v1::GetServerResponse>(
102 void ValidateSubchannelProtoJsonTranslation(const char* json_c_str) {
103 VaidateProtoJsonTranslation<grpc::channelz::v1::Subchannel>(json_c_str);
106 void ValidateServerProtoJsonTranslation(const char* json_c_str) {
107 VaidateProtoJsonTranslation<grpc::channelz::v1::Server>(json_c_str);
110 void ValidateGetServersResponseProtoJsonTranslation(const char* json_c_str) {
111 VaidateProtoJsonTranslation<grpc::channelz::v1::GetServersResponse>(
115 } // namespace testing