1 // Copyright 2019 The Chromium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "base/profiler/metadata_recorder.h"
7 #include "base/ranges/algorithm.h"
8 #include "base/test/gtest_util.h"
9 #include "testing/gmock/include/gmock/gmock.h"
10 #include "testing/gtest/include/gtest/gtest.h"
11 #include "third_party/abseil-cpp/absl/types/optional.h"
15 bool operator==(const MetadataRecorder::Item& lhs,
16 const MetadataRecorder::Item& rhs) {
17 return lhs.name_hash == rhs.name_hash && lhs.value == rhs.value;
20 bool operator<(const MetadataRecorder::Item& lhs,
21 const MetadataRecorder::Item& rhs) {
22 return lhs.name_hash < rhs.name_hash;
25 TEST(MetadataRecorderTest, GetItems_Empty) {
26 MetadataRecorder recorder;
27 MetadataRecorder::ItemArray items;
29 EXPECT_EQ(0u, MetadataRecorder::MetadataProvider(&recorder,
30 PlatformThread::CurrentId())
32 EXPECT_EQ(0u, MetadataRecorder::MetadataProvider(&recorder,
33 PlatformThread::CurrentId())
37 TEST(MetadataRecorderTest, Set_NewNameHash) {
38 MetadataRecorder recorder;
40 recorder.Set(10, absl::nullopt, absl::nullopt, 20);
42 MetadataRecorder::ItemArray items;
45 item_count = MetadataRecorder::MetadataProvider(&recorder,
46 PlatformThread::CurrentId())
48 ASSERT_EQ(1u, item_count);
49 EXPECT_EQ(10u, items[0].name_hash);
50 EXPECT_FALSE(items[0].key.has_value());
51 EXPECT_FALSE(items[0].thread_id.has_value());
52 EXPECT_EQ(20, items[0].value);
55 recorder.Set(20, absl::nullopt, absl::nullopt, 30);
58 item_count = MetadataRecorder::MetadataProvider(&recorder,
59 PlatformThread::CurrentId())
61 ASSERT_EQ(2u, item_count);
62 EXPECT_EQ(20u, items[1].name_hash);
63 EXPECT_FALSE(items[1].key.has_value());
64 EXPECT_FALSE(items[1].thread_id.has_value());
65 EXPECT_EQ(30, items[1].value);
69 TEST(MetadataRecorderTest, Set_ExistingNameNash) {
70 MetadataRecorder recorder;
71 recorder.Set(10, absl::nullopt, absl::nullopt, 20);
72 recorder.Set(10, absl::nullopt, absl::nullopt, 30);
74 MetadataRecorder::ItemArray items;
76 MetadataRecorder::MetadataProvider(&recorder, PlatformThread::CurrentId())
78 ASSERT_EQ(1u, item_count);
79 EXPECT_EQ(10u, items[0].name_hash);
80 EXPECT_FALSE(items[0].key.has_value());
81 EXPECT_FALSE(items[0].thread_id.has_value());
82 EXPECT_EQ(30, items[0].value);
85 TEST(MetadataRecorderTest, Set_ReAddRemovedNameNash) {
86 MetadataRecorder recorder;
87 MetadataRecorder::ItemArray items;
88 std::vector<MetadataRecorder::Item> expected;
89 for (size_t i = 0; i < items.size(); ++i) {
90 expected.emplace_back(i, absl::nullopt, absl::nullopt, 0);
91 recorder.Set(i, absl::nullopt, absl::nullopt, 0);
94 // By removing an item from a full recorder, re-setting the same item, and
95 // verifying that the item is returned, we can verify that the recorder is
96 // reusing the inactive slot for the same name hash instead of trying (and
97 // failing) to allocate a new slot.
98 recorder.Remove(3, absl::nullopt, absl::nullopt);
99 recorder.Set(3, absl::nullopt, absl::nullopt, 0);
102 MetadataRecorder::MetadataProvider(&recorder, PlatformThread::CurrentId())
104 EXPECT_EQ(items.size(), item_count);
105 EXPECT_THAT(expected, ::testing::UnorderedElementsAreArray(items));
108 TEST(MetadataRecorderTest, Set_AddPastMaxCount) {
109 MetadataRecorder recorder;
110 MetadataRecorder::ItemArray items;
111 for (size_t i = 0; i < items.size(); ++i) {
112 recorder.Set(i, absl::nullopt, absl::nullopt, 0);
115 // This should fail silently.
116 recorder.Set(items.size(), absl::nullopt, absl::nullopt, 0);
119 TEST(MetadataRecorderTest, Set_NulloptKeyIsIndependentOfNonNulloptKey) {
120 MetadataRecorder recorder;
122 recorder.Set(10, 100, absl::nullopt, 20);
124 MetadataRecorder::ItemArray items;
127 item_count = MetadataRecorder::MetadataProvider(&recorder,
128 PlatformThread::CurrentId())
130 ASSERT_EQ(1u, item_count);
131 EXPECT_EQ(10u, items[0].name_hash);
132 ASSERT_TRUE(items[0].key.has_value());
133 EXPECT_EQ(100, *items[0].key);
134 EXPECT_EQ(20, items[0].value);
137 recorder.Set(10, absl::nullopt, absl::nullopt, 30);
140 item_count = MetadataRecorder::MetadataProvider(&recorder,
141 PlatformThread::CurrentId())
143 ASSERT_EQ(2u, item_count);
145 EXPECT_EQ(10u, items[0].name_hash);
146 ASSERT_TRUE(items[0].key.has_value());
147 EXPECT_EQ(100, *items[0].key);
148 EXPECT_EQ(20, items[0].value);
150 EXPECT_EQ(10u, items[1].name_hash);
151 EXPECT_FALSE(items[1].key.has_value());
152 EXPECT_EQ(30, items[1].value);
156 TEST(MetadataRecorderTest, Set_ThreadIdIsScoped) {
157 MetadataRecorder recorder;
159 recorder.Set(10, absl::nullopt, PlatformThread::CurrentId(), 20);
161 MetadataRecorder::ItemArray items;
164 item_count = MetadataRecorder::MetadataProvider(&recorder,
165 PlatformThread::CurrentId())
167 ASSERT_EQ(1u, item_count);
168 EXPECT_EQ(10u, items[0].name_hash);
169 EXPECT_FALSE(items[0].key.has_value());
170 ASSERT_TRUE(items[0].thread_id.has_value());
171 EXPECT_EQ(PlatformThread::CurrentId(), *items[0].thread_id);
172 EXPECT_EQ(20, items[0].value);
175 item_count = MetadataRecorder::MetadataProvider(&recorder, kInvalidThreadId)
177 EXPECT_EQ(0U, item_count);
181 TEST(MetadataRecorderTest, Set_NulloptThreadAndNonNulloptThread) {
182 MetadataRecorder recorder;
184 recorder.Set(10, absl::nullopt, PlatformThread::CurrentId(), 20);
185 recorder.Set(10, absl::nullopt, absl::nullopt, 30);
187 MetadataRecorder::ItemArray items;
189 MetadataRecorder::MetadataProvider(&recorder, PlatformThread::CurrentId())
191 ASSERT_EQ(2u, item_count);
192 EXPECT_EQ(10u, items[0].name_hash);
193 EXPECT_FALSE(items[0].key.has_value());
194 ASSERT_TRUE(items[0].thread_id.has_value());
195 EXPECT_EQ(PlatformThread::CurrentId(), *items[0].thread_id);
196 EXPECT_EQ(20, items[0].value);
198 EXPECT_EQ(10u, items[1].name_hash);
199 EXPECT_FALSE(items[1].key.has_value());
200 EXPECT_FALSE(items[1].thread_id.has_value());
201 EXPECT_EQ(30, items[1].value);
204 TEST(MetadataRecorderTest, Remove) {
205 MetadataRecorder recorder;
206 recorder.Set(10, absl::nullopt, absl::nullopt, 20);
207 recorder.Set(30, absl::nullopt, absl::nullopt, 40);
208 recorder.Set(50, absl::nullopt, absl::nullopt, 60);
209 recorder.Remove(30, absl::nullopt, absl::nullopt);
211 MetadataRecorder::ItemArray items;
213 MetadataRecorder::MetadataProvider(&recorder, PlatformThread::CurrentId())
215 ASSERT_EQ(2u, item_count);
216 EXPECT_EQ(10u, items[0].name_hash);
217 EXPECT_FALSE(items[0].key.has_value());
218 EXPECT_EQ(20, items[0].value);
219 EXPECT_EQ(50u, items[1].name_hash);
220 EXPECT_FALSE(items[1].key.has_value());
221 EXPECT_EQ(60, items[1].value);
224 TEST(MetadataRecorderTest, Remove_DoesntExist) {
225 MetadataRecorder recorder;
226 recorder.Set(10, absl::nullopt, absl::nullopt, 20);
227 recorder.Remove(20, absl::nullopt, absl::nullopt);
229 MetadataRecorder::ItemArray items;
231 MetadataRecorder::MetadataProvider(&recorder, PlatformThread::CurrentId())
233 ASSERT_EQ(1u, item_count);
234 EXPECT_EQ(10u, items[0].name_hash);
235 EXPECT_FALSE(items[0].key.has_value());
236 EXPECT_EQ(20, items[0].value);
239 TEST(MetadataRecorderTest, Remove_NulloptKeyIsIndependentOfNonNulloptKey) {
240 MetadataRecorder recorder;
242 recorder.Set(10, 100, absl::nullopt, 20);
243 recorder.Set(10, absl::nullopt, absl::nullopt, 30);
245 recorder.Remove(10, absl::nullopt, absl::nullopt);
247 MetadataRecorder::ItemArray items;
249 MetadataRecorder::MetadataProvider(&recorder, PlatformThread::CurrentId())
251 ASSERT_EQ(1u, item_count);
252 EXPECT_EQ(10u, items[0].name_hash);
253 ASSERT_TRUE(items[0].key.has_value());
254 EXPECT_EQ(100, *items[0].key);
255 EXPECT_EQ(20, items[0].value);
258 TEST(MetadataRecorderTest,
259 Remove_NulloptThreadIsIndependentOfNonNulloptThread) {
260 MetadataRecorder recorder;
262 recorder.Set(10, absl::nullopt, PlatformThread::CurrentId(), 20);
263 recorder.Set(10, absl::nullopt, absl::nullopt, 30);
265 recorder.Remove(10, absl::nullopt, absl::nullopt);
267 MetadataRecorder::ItemArray items;
269 MetadataRecorder::MetadataProvider(&recorder, PlatformThread::CurrentId())
271 ASSERT_EQ(1u, item_count);
272 EXPECT_EQ(10u, items[0].name_hash);
273 EXPECT_FALSE(items[0].key.has_value());
274 ASSERT_TRUE(items[0].thread_id.has_value());
275 EXPECT_EQ(PlatformThread::CurrentId(), *items[0].thread_id);
276 EXPECT_EQ(20, items[0].value);
279 TEST(MetadataRecorderTest, ReclaimInactiveSlots) {
280 MetadataRecorder recorder;
282 std::set<MetadataRecorder::Item> items_set;
283 // Fill up the metadata map.
284 for (size_t i = 0; i < MetadataRecorder::MAX_METADATA_COUNT; ++i) {
285 recorder.Set(i, absl::nullopt, absl::nullopt, i);
286 items_set.insert(MetadataRecorder::Item{i, absl::nullopt, absl::nullopt,
287 static_cast<int64_t>(i)});
290 // Remove every fourth entry to fragment the data.
291 size_t entries_removed = 0;
292 for (size_t i = 3; i < MetadataRecorder::MAX_METADATA_COUNT; i += 4) {
293 recorder.Remove(i, absl::nullopt, absl::nullopt);
295 items_set.erase(MetadataRecorder::Item{i, absl::nullopt, absl::nullopt,
296 static_cast<int64_t>(i)});
299 // Ensure that the inactive slots are reclaimed to make room for more entries.
300 for (size_t i = 1; i <= entries_removed; ++i) {
301 recorder.Set(i * 100, absl::nullopt, absl::nullopt, i * 100);
302 items_set.insert(MetadataRecorder::Item{
303 i * 100, absl::nullopt, absl::nullopt, static_cast<int64_t>(i * 100)});
306 MetadataRecorder::ItemArray items_arr;
307 ranges::copy(items_set, items_arr.begin());
309 MetadataRecorder::ItemArray recorder_items;
310 size_t recorder_item_count =
311 MetadataRecorder::MetadataProvider(&recorder, PlatformThread::CurrentId())
312 .GetItems(&recorder_items);
313 EXPECT_EQ(recorder_item_count, MetadataRecorder::MAX_METADATA_COUNT);
314 EXPECT_THAT(recorder_items, ::testing::UnorderedElementsAreArray(items_arr));