ceph/src/jaegertracing/jaeger-client-cpp/src/jaegertracing/testutils/MockAgentTest.cpp

   1 /*
   2  * Copyright (c) 2017 Uber Technologies, Inc.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <sstream>
  18
  19 #include <gtest/gtest.h>
  20 #include <nlohmann/json.hpp>
  21
  22 #include "jaegertracing/baggage/RemoteRestrictionJSON.h"
  23 #include "jaegertracing/net/http/Response.h"
  24 #include "jaegertracing/samplers/RemoteSamplingJSON.h"
  25 #include "jaegertracing/testutils/MockAgent.h"
  26
  27 namespace jaegertracing {
  28 namespace testutils {
  29
  30 TEST(MockAgent, testSpanServer)
  31 {
  32     std::shared_ptr<MockAgent> mockAgent = MockAgent::make();
  33     mockAgent->start();
  34
  35     auto client = mockAgent->spanServerClient();
  36
  37     constexpr auto kBiggestBatch = 5;
  38     for (auto i = 1; i < kBiggestBatch; ++i) {
  39         thrift::Batch batch;
  40         batch.spans.resize(i);
  41         for (auto j = 0; j < i; ++j) {
  42             std::string operationName("span-");
  43             operationName += std::to_string(j);
  44             batch.spans[j].__set_operationName(operationName);
  45         }
  46
  47         client->emitBatch(batch);
  48
  49         constexpr auto kNumTries = 100;
  50         for (auto k = 0; k < kNumTries; ++k) {
  51             std::this_thread::sleep_for(std::chrono::milliseconds(1));
  52             const auto batches = mockAgent->batches();
  53             if (!batches.empty() &&
  54                 static_cast<int>(batches[0].spans.size()) == i) {
  55                 break;
  56             }
  57         }
  58
  59         const auto batches = mockAgent->batches();
  60         ASSERT_FALSE(batches.empty());
  61         ASSERT_EQ(i, static_cast<int>(batches[0].spans.size()));
  62         for (auto j = 0; j < i; ++j) {
  63             std::string operationName("span-");
  64             operationName += std::to_string(j);
  65             ASSERT_EQ(operationName, batches[0].spans[j].operationName);
  66         }
  67         mockAgent->resetBatches();
  68     }
  69 }
  70
  71 TEST(MockAgent, testSamplingManager)
  72 {
  73     auto mockAgent = MockAgent::make();
  74     mockAgent->start();
  75
  76     {
  77         std::ostringstream oss;
  78         oss << "http://" << mockAgent->samplingServerAddress().authority()
  79             << '/';
  80         const auto uriStr = oss.str();
  81         const auto uri = net::URI::parse(uriStr);
  82         const auto response = net::http::get(uri);
  83         ASSERT_EQ("no 'service' parameter", response.body());
  84     }
  85     {
  86         std::ostringstream oss;
  87         oss << "http://" << mockAgent->samplingServerAddress().authority()
  88             << "/?service=a&service=b";
  89         const auto uriStr = oss.str();
  90         const auto uri = net::URI::parse(uriStr);
  91         const auto response = net::http::get(uri);
  92         ASSERT_EQ("'service' parameter must occur only once", response.body());
  93     }
  94     {
  95         std::ostringstream oss;
  96         oss << "http://" << mockAgent->samplingServerAddress().authority()
  97             << "/?service=something";
  98         const auto uriStr = oss.str();
  99         const auto uri = net::URI::parse(uriStr);
 100         const auto responseHTTP = net::http::get(uri);
 101         sampling_manager::thrift::SamplingStrategyResponse response;
 102         response = nlohmann::json::parse(responseHTTP.body());
 103         ASSERT_EQ(sampling_manager::thrift::SamplingStrategyType::PROBABILISTIC,
 104                   response.strategyType);
 105     }
 106     {
 107         sampling_manager::thrift::SamplingStrategyResponse config;
 108         config.__set_strategyType(
 109             sampling_manager::thrift::SamplingStrategyType::RATE_LIMITING);
 110         sampling_manager::thrift::RateLimitingSamplingStrategy rateLimiting;
 111         rateLimiting.__set_maxTracesPerSecond(123);
 112         config.__set_rateLimitingSampling(rateLimiting);
 113         mockAgent->addSamplingStrategy("service123", config);
 114
 115         std::ostringstream oss;
 116         oss << "http://" << mockAgent->samplingServerAddress().authority()
 117             << "/?service=service123";
 118         const auto uriStr = oss.str();
 119         const auto uri = net::URI::parse(uriStr);
 120         const auto responseHTTP = net::http::get(uri);
 121         sampling_manager::thrift::SamplingStrategyResponse response;
 122         response = nlohmann::json::parse(responseHTTP.body());
 123         ASSERT_EQ(config, response);
 124     }
 125 }
 126
 127 }  // namespace testutils
 128 }  // namespace jaegertracing