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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 <gtest/gtest.h> | |
18 | ||
19 | #include "jaegertracing/baggage/BaggageSetter.h" | |
20 | #include "jaegertracing/baggage/RemoteRestrictionManager.h" | |
21 | #include "jaegertracing/baggage/RestrictionManager.h" | |
22 | #include "jaegertracing/baggage/RestrictionsConfig.h" | |
23 | #include "jaegertracing/metrics/Metrics.h" | |
24 | #include "jaegertracing/metrics/InMemoryStatsReporter.h" | |
25 | #include "jaegertracing/testutils/MockAgent.h" | |
26 | ||
27 | #include <mutex> | |
28 | ||
29 | namespace jaegertracing { | |
30 | namespace baggage { | |
31 | namespace { | |
32 | ||
33 | class TestStatsReporter : public metrics::StatsReporter { | |
34 | public: | |
35 | ||
36 | using ValueMap = std::unordered_map<std::string, int64_t>; | |
37 | ||
38 | virtual ~TestStatsReporter() = default; | |
39 | ||
40 | void incCounter(const std::string& name, | |
41 | int64_t delta, | |
42 | const metrics::StatsReporter::TagMap& tags) override | |
43 | { | |
44 | std::lock_guard<std::mutex> lock(_mutex); | |
45 | ||
46 | const auto metricName = | |
47 | metrics::Metrics::addTagsToMetricName(name, tags); | |
48 | auto& currentValue = _counters[metricName]; | |
49 | currentValue = currentValue + delta; | |
50 | } | |
51 | ||
52 | void recordTimer(const std::string& name, | |
53 | int64_t time, | |
54 | const metrics::StatsReporter::TagMap& tags) override | |
55 | { | |
56 | } | |
57 | ||
58 | void updateGauge(const std::string& name, | |
59 | int64_t time, | |
60 | const metrics::StatsReporter::TagMap& tags) override | |
61 | { | |
62 | } | |
63 | ||
64 | int64_t counterValue(const std::string& name, | |
65 | const metrics::StatsReporter::TagMap& tags) const | |
66 | { | |
67 | std::lock_guard<std::mutex> lock(_mutex); | |
68 | ||
69 | const auto metricName = | |
70 | metrics::Metrics::addTagsToMetricName(name, tags); | |
71 | return _counters[metricName]; | |
72 | } | |
73 | ||
74 | private: | |
75 | mutable ValueMap _counters; | |
76 | mutable std::mutex _mutex; | |
77 | }; | |
78 | ||
79 | constexpr auto kDefaultMaxValueLength = 8; | |
80 | ||
81 | class TestRestrictionManager : public RestrictionManager { | |
82 | public: | |
83 | ~TestRestrictionManager() { close(); } | |
84 | ||
85 | Restriction getRestriction(const std::string&, | |
86 | const std::string& key) override | |
87 | { | |
88 | const auto keyAllowed = (!key.empty() && key[0] == 'a'); | |
89 | return Restriction(keyAllowed, kDefaultMaxValueLength); | |
90 | } | |
91 | }; | |
92 | ||
93 | template <typename FieldIterator> | |
94 | void log(FieldIterator, FieldIterator) | |
95 | { | |
96 | } | |
97 | ||
98 | } // anonymous namespace | |
99 | ||
100 | TEST(Baggage, restrictionManagerTest) | |
101 | { | |
102 | auto logFn = &log<std::vector<Tag>::const_iterator>; | |
103 | TestRestrictionManager manager; | |
104 | auto metrics = metrics::Metrics::makeNullMetrics(); | |
105 | BaggageSetter setter(manager, *metrics); | |
106 | Span span( | |
107 | nullptr, | |
108 | SpanContext(TraceID(), | |
109 | 123, | |
110 | 456, | |
111 | static_cast<unsigned char>(SpanContext::Flag::kSampled), | |
112 | SpanContext::StrMap())); | |
113 | auto baggage = span.context().baggage(); | |
114 | setter.setBaggage(span, baggage, "abc", "123", logFn); | |
115 | ASSERT_EQ(1, baggage.size()); | |
116 | ASSERT_EQ("123", baggage["abc"]); | |
117 | setter.setBaggage(span, baggage, "bcd", "234", logFn); | |
118 | ASSERT_EQ(1, baggage.size()); | |
119 | setter.setBaggage(span, baggage, "abc", "1234567890", logFn); | |
120 | ASSERT_EQ("12345678", baggage["abc"]); | |
121 | } | |
122 | ||
123 | TEST(Baggage, testRemoteRestrictionManagerDefaults) | |
124 | { | |
125 | auto logger = logging::nullLogger(); | |
126 | auto metrics = metrics::Metrics::makeNullMetrics(); | |
127 | RemoteRestrictionManager manager( | |
128 | "test-service", | |
129 | "", | |
130 | false, | |
131 | RemoteRestrictionManager::Clock::duration(), | |
132 | *logger, | |
133 | *metrics); | |
134 | ASSERT_EQ(RemoteRestrictionManager::defaultRefreshInterval(), | |
135 | manager.refreshInterval()); | |
136 | ASSERT_EQ( | |
137 | Restriction(true, RemoteRestrictionManager::kDefaultMaxValueLength), | |
138 | manager.getRestriction("test-service", "abc")); | |
139 | } | |
140 | ||
141 | TEST(Baggage, testRemoteRestrictionManagerFunctionality) | |
142 | { | |
143 | auto logger = logging::consoleLogger(); | |
144 | ||
145 | TestStatsReporter testReporter; | |
146 | auto metrics = metrics::Metrics::fromStatsReporter(testReporter); | |
147 | ||
148 | auto mockAgent = testutils::MockAgent::make(); | |
149 | mockAgent->start(); | |
150 | RemoteRestrictionManager manager( | |
151 | "test-service", | |
152 | mockAgent->samplingServerAddress().authority(), | |
153 | true, | |
154 | std::chrono::milliseconds(100), | |
155 | *logger, | |
156 | *metrics); | |
157 | ASSERT_EQ(Restriction(false, 0), | |
158 | manager.getRestriction("test-service", "abc")); | |
159 | mockAgent->addBaggageRestriction("abc", Restriction(true, 1)); | |
160 | ||
161 | // Wait for the Update Restrictions to occur | |
162 | // This is done by listening to the number of update published via the Metrics | |
163 | // Typically, On Windows with Debug mode, the update happens after 700ms | |
164 | for (int sleepIndex = 0; sleepIndex < 100; ++sleepIndex) { | |
165 | auto counterVal = testReporter.counterValue( | |
166 | "jaeger.baggage-restrictions-update", { { "result", "ok" } }); | |
167 | std::this_thread::sleep_for(std::chrono::milliseconds(200)); | |
168 | if (counterVal > 0) { | |
169 | break; | |
170 | } | |
171 | } | |
172 | ||
173 | ASSERT_EQ(Restriction(true, 1), | |
174 | manager.getRestriction("test-service", "abc")); | |
175 | ASSERT_EQ(Restriction(false, 0), | |
176 | manager.getRestriction("test-service", "bcd")); | |
177 | manager.close(); | |
178 | } | |
179 | ||
180 | } // namespace baggage | |
181 | } // namespace jaegertracing |