components/metrics/call_stack_profile_metrics_provider_unittest.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/metrics/call_stack_profile_metrics_provider.h"
   6
   7 #include "base/metrics/field_trial.h"
   8 #include "base/profiler/stack_sampling_profiler.h"
   9 #include "base/run_loop.h"
  10 #include "base/strings/string_number_conversions.h"
  11 #include "components/metrics/proto/chrome_user_metrics_extension.pb.h"
  12 #include "components/variations/entropy_provider.h"
  13 #include "testing/gtest/include/gtest/gtest.h"
  14
  15 using base::StackSamplingProfiler;
  16 using Frame = StackSamplingProfiler::Frame;
  17 using Module = StackSamplingProfiler::Module;
  18 using Profile = StackSamplingProfiler::CallStackProfile;
  19 using Profiles = StackSamplingProfiler::CallStackProfiles;
  20 using Sample = StackSamplingProfiler::Sample;
  21
  22 namespace metrics {
  23
  24 using Params = CallStackProfileMetricsProvider::Params;
  25
  26 // This test fixture enables the field trial that
  27 // CallStackProfileMetricsProvider depends on to report profiles.
  28 class CallStackProfileMetricsProviderTest : public testing::Test {
  29  public:
  30   CallStackProfileMetricsProviderTest()
  31       : field_trial_list_(nullptr) {
  32     base::FieldTrialList::CreateFieldTrial(
  33         TestState::kFieldTrialName,
  34         TestState::kReportProfilesGroupName);
  35     TestState::ResetStaticStateForTesting();
  36   }
  37
  38   ~CallStackProfileMetricsProviderTest() override {}
  39
  40   // Utility function to append profiles to the metrics provider.
  41   void AppendProfiles(const Params& params, const Profiles& profiles) {
  42     CallStackProfileMetricsProvider::GetProfilerCallback(params).Run(profiles);
  43   }
  44
  45  private:
  46   // Exposes field trial/group names from the CallStackProfileMetricsProvider.
  47   class TestState : public CallStackProfileMetricsProvider {
  48    public:
  49     using CallStackProfileMetricsProvider::kFieldTrialName;
  50     using CallStackProfileMetricsProvider::kReportProfilesGroupName;
  51     using CallStackProfileMetricsProvider::ResetStaticStateForTesting;
  52   };
  53
  54   base::FieldTrialList field_trial_list_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(CallStackProfileMetricsProviderTest);
  57 };
  58
  59 // Checks that all properties from multiple profiles are filled as expected.
  60 TEST_F(CallStackProfileMetricsProviderTest, MultipleProfiles) {
  61   const uintptr_t module1_base_address = 0x1000;
  62   const uintptr_t module2_base_address = 0x2000;
  63   const uintptr_t module3_base_address = 0x3000;
  64
  65   const Module profile_modules[][2] = {
  66     {
  67       Module(
  68           module1_base_address,
  69           "ABCD",
  70 #if defined(OS_WIN)
  71           base::FilePath(L"c:\\some\\path\\to\\chrome.exe")
  72 #else
  73           base::FilePath("/some/path/to/chrome")
  74 #endif
  75       ),
  76       Module(
  77           module2_base_address,
  78           "EFGH",
  79 #if defined(OS_WIN)
  80           base::FilePath(L"c:\\some\\path\\to\\third_party.dll")
  81 #else
  82           base::FilePath("/some/path/to/third_party.so")
  83 #endif
  84       ),
  85     },
  86     {
  87       Module(
  88           module3_base_address,
  89           "MNOP",
  90 #if defined(OS_WIN)
  91           base::FilePath(L"c:\\some\\path\\to\\third_party2.dll")
  92 #else
  93           base::FilePath("/some/path/to/third_party2.so")
  94 #endif
  95       ),
  96       Module( // Repeated from the first profile.
  97           module1_base_address,
  98           "ABCD",
  99 #if defined(OS_WIN)
 100           base::FilePath(L"c:\\some\\path\\to\\chrome.exe")
 101 #else
 102           base::FilePath("/some/path/to/chrome")
 103 #endif
 104       )
 105     }
 106   };
 107
 108   // Values for Windows generated with:
 109   // perl -MDigest::MD5=md5 -MEncode=encode
 110   //     -e 'for(@ARGV){printf "%x\n", unpack "Q>", md5 encode "UTF-16LE", $_}'
 111   //     chrome.exe third_party.dll third_party2.dll
 112   //
 113   // Values for Linux generated with:
 114   // perl -MDigest::MD5=md5
 115   //     -e 'for(@ARGV){printf "%x\n", unpack "Q>", md5 $_}'
 116   //     chrome third_party.so third_party2.so
 117   const uint64 profile_expected_name_md5_prefixes[][2] = {
 118     {
 119 #if defined(OS_WIN)
 120       0x46c3e4166659ac02ULL,
 121       0x7e2b8bfddeae1abaULL
 122 #else
 123       0x554838a8451ac36cUL,
 124       0x843661148659c9f8UL
 125 #endif
 126     },
 127     {
 128 #if defined(OS_WIN)
 129       0x87b66f4573a4d5caULL,
 130       0x46c3e4166659ac02ULL
 131 #else
 132       0xb4647e539fa6ec9eUL,
 133       0x554838a8451ac36cUL
 134 #endif
 135     }
 136   };
 137
 138   // Represents two stack samples for each of two profiles, where each stack
 139   // contains three frames. Each frame contains an instruction pointer and a
 140   // module index corresponding to the module for the profile in
 141   // profile_modules.
 142   //
 143   // So, the first stack sample below has its top frame in module 0 at an offset
 144   // of 0x10 from the module's base address, the next-to-top frame in module 1
 145   // at an offset of 0x20 from the module's base address, and the bottom frame
 146   // in module 0 at an offset of 0x30 from the module's base address
 147   const Frame profile_sample_frames[][2][3] = {
 148     {
 149       {
 150         Frame(module1_base_address + 0x10, 0),
 151         Frame(module2_base_address + 0x20, 1),
 152         Frame(module1_base_address + 0x30, 0)
 153       },
 154       {
 155         Frame(module2_base_address + 0x10, 1),
 156         Frame(module1_base_address + 0x20, 0),
 157         Frame(module2_base_address + 0x30, 1)
 158       }
 159     },
 160     {
 161       {
 162         Frame(module3_base_address + 0x10, 0),
 163         Frame(module1_base_address + 0x20, 1),
 164         Frame(module3_base_address + 0x30, 0)
 165       },
 166       {
 167         Frame(module1_base_address + 0x10, 1),
 168         Frame(module3_base_address + 0x20, 0),
 169         Frame(module1_base_address + 0x30, 1)
 170       }
 171     }
 172   };
 173
 174   base::TimeDelta profile_durations[2] = {
 175     base::TimeDelta::FromMilliseconds(100),
 176     base::TimeDelta::FromMilliseconds(200)
 177   };
 178
 179   base::TimeDelta profile_sampling_periods[2] = {
 180     base::TimeDelta::FromMilliseconds(10),
 181     base::TimeDelta::FromMilliseconds(20)
 182   };
 183
 184   std::vector<Profile> profiles;
 185   for (size_t i = 0; i < arraysize(profile_sample_frames); ++i) {
 186     Profile profile;
 187     profile.modules.insert(
 188         profile.modules.end(), &profile_modules[i][0],
 189         &profile_modules[i][0] + arraysize(profile_modules[i]));
 190
 191     for (size_t j = 0; j < arraysize(profile_sample_frames[i]); ++j) {
 192       profile.samples.push_back(Sample());
 193       Sample& sample = profile.samples.back();
 194       sample.insert(sample.end(), &profile_sample_frames[i][j][0],
 195                     &profile_sample_frames[i][j][0] +
 196                     arraysize(profile_sample_frames[i][j]));
 197     }
 198
 199     profile.profile_duration = profile_durations[i];
 200     profile.sampling_period = profile_sampling_periods[i];
 201
 202     profiles.push_back(profile);
 203   }
 204
 205   CallStackProfileMetricsProvider provider;
 206   provider.OnRecordingEnabled();
 207   AppendProfiles(
 208       Params(CallStackProfileMetricsProvider::PROCESS_STARTUP, false),
 209       profiles);
 210   ChromeUserMetricsExtension uma_proto;
 211   provider.ProvideGeneralMetrics(&uma_proto);
 212
 213   ASSERT_EQ(static_cast<int>(arraysize(profile_sample_frames)),
 214             uma_proto.sampled_profile().size());
 215   for (size_t i = 0; i < arraysize(profile_sample_frames); ++i) {
 216     SCOPED_TRACE("profile " + base::IntToString(i));
 217     const SampledProfile& sampled_profile = uma_proto.sampled_profile().Get(i);
 218     ASSERT_TRUE(sampled_profile.has_call_stack_profile());
 219     const CallStackProfile& call_stack_profile =
 220         sampled_profile.call_stack_profile();
 221
 222     ASSERT_EQ(static_cast<int>(arraysize(profile_sample_frames[i])),
 223               call_stack_profile.sample().size());
 224     for (size_t j = 0; j < arraysize(profile_sample_frames[i]); ++j) {
 225       SCOPED_TRACE("sample " + base::IntToString(j));
 226       const CallStackProfile::Sample& proto_sample =
 227           call_stack_profile.sample().Get(j);
 228       ASSERT_EQ(static_cast<int>(arraysize(profile_sample_frames[i][j])),
 229                 proto_sample.entry().size());
 230       ASSERT_TRUE(proto_sample.has_count());
 231       EXPECT_EQ(1u, proto_sample.count());
 232       for (size_t k = 0; k < arraysize(profile_sample_frames[i][j]); ++k) {
 233         SCOPED_TRACE("frame " + base::IntToString(k));
 234         const CallStackProfile::Entry& entry = proto_sample.entry().Get(k);
 235         ASSERT_TRUE(entry.has_address());
 236         const char* instruction_pointer = reinterpret_cast<const char*>(
 237             profile_sample_frames[i][j][k].instruction_pointer);
 238         const char* module_base_address = reinterpret_cast<const char*>(
 239             profile_modules[i][profile_sample_frames[i][j][k].module_index]
 240             .base_address);
 241         EXPECT_EQ(static_cast<uint64>(instruction_pointer -
 242                                       module_base_address), entry.address());
 243         ASSERT_TRUE(entry.has_module_id_index());
 244         EXPECT_EQ(profile_sample_frames[i][j][k].module_index,
 245                   static_cast<size_t>(entry.module_id_index()));
 246       }
 247     }
 248
 249     ASSERT_EQ(static_cast<int>(arraysize(profile_modules[i])),
 250               call_stack_profile.module_id().size());
 251     for (size_t j = 0; j < arraysize(profile_modules[i]); ++j) {
 252       SCOPED_TRACE("module " + base::IntToString(j));
 253       const CallStackProfile::ModuleIdentifier& module_identifier =
 254           call_stack_profile.module_id().Get(j);
 255       ASSERT_TRUE(module_identifier.has_build_id());
 256       EXPECT_EQ(profile_modules[i][j].id, module_identifier.build_id());
 257       ASSERT_TRUE(module_identifier.has_name_md5_prefix());
 258       EXPECT_EQ(profile_expected_name_md5_prefixes[i][j],
 259                 module_identifier.name_md5_prefix());
 260     }
 261
 262     ASSERT_TRUE(call_stack_profile.has_profile_duration_ms());
 263     EXPECT_EQ(profile_durations[i].InMilliseconds(),
 264               call_stack_profile.profile_duration_ms());
 265     ASSERT_TRUE(call_stack_profile.has_sampling_period_ms());
 266     EXPECT_EQ(profile_sampling_periods[i].InMilliseconds(),
 267               call_stack_profile.sampling_period_ms());
 268     ASSERT_TRUE(sampled_profile.has_trigger_event());
 269     EXPECT_EQ(SampledProfile::PROCESS_STARTUP, sampled_profile.trigger_event());
 270   }
 271 }
 272
 273 // Checks that all duplicate samples are collapsed with
 274 // preserve_sample_ordering = false.
 275 TEST_F(CallStackProfileMetricsProviderTest, RepeatedStacksUnordered) {
 276   const uintptr_t module_base_address = 0x1000;
 277
 278   const Module modules[] = {
 279     Module(
 280         module_base_address,
 281         "ABCD",
 282 #if defined(OS_WIN)
 283         base::FilePath(L"c:\\some\\path\\to\\chrome.exe")
 284 #else
 285         base::FilePath("/some/path/to/chrome")
 286 #endif
 287     )
 288   };
 289
 290   // Duplicate samples in slots 0, 2, and 3.
 291   const Frame sample_frames[][1] = {
 292     { Frame(module_base_address + 0x10, 0), },
 293     { Frame(module_base_address + 0x20, 0), },
 294     { Frame(module_base_address + 0x10, 0), },
 295     { Frame(module_base_address + 0x10, 0) }
 296   };
 297
 298   Profile profile;
 299   profile.modules.insert(profile.modules.end(), &modules[0],
 300       &modules[0] + arraysize(modules));
 301
 302   for (size_t i = 0; i < arraysize(sample_frames); ++i) {
 303     profile.samples.push_back(Sample());
 304     Sample& sample = profile.samples.back();
 305     sample.insert(sample.end(), &sample_frames[i][0],
 306                   &sample_frames[i][0] + arraysize(sample_frames[i]));
 307   }
 308
 309   profile.profile_duration = base::TimeDelta::FromMilliseconds(100);
 310   profile.sampling_period = base::TimeDelta::FromMilliseconds(10);
 311
 312   CallStackProfileMetricsProvider provider;
 313   provider.OnRecordingEnabled();
 314   AppendProfiles(
 315       Params(CallStackProfileMetricsProvider::PROCESS_STARTUP, false),
 316       std::vector<Profile>(1, profile));
 317   ChromeUserMetricsExtension uma_proto;
 318   provider.ProvideGeneralMetrics(&uma_proto);
 319
 320   ASSERT_EQ(1, uma_proto.sampled_profile().size());
 321   const SampledProfile& sampled_profile = uma_proto.sampled_profile().Get(0);
 322   ASSERT_TRUE(sampled_profile.has_call_stack_profile());
 323   const CallStackProfile& call_stack_profile =
 324       sampled_profile.call_stack_profile();
 325
 326   ASSERT_EQ(2, call_stack_profile.sample().size());
 327   for (int i = 0; i < 2; ++i) {
 328     SCOPED_TRACE("sample " + base::IntToString(i));
 329     const CallStackProfile::Sample& proto_sample =
 330         call_stack_profile.sample().Get(i);
 331     ASSERT_EQ(static_cast<int>(arraysize(sample_frames[i])),
 332               proto_sample.entry().size());
 333     ASSERT_TRUE(proto_sample.has_count());
 334     EXPECT_EQ(i == 0 ? 3u : 1u, proto_sample.count());
 335     for (size_t j = 0; j < arraysize(sample_frames[i]); ++j) {
 336       SCOPED_TRACE("frame " + base::IntToString(j));
 337       const CallStackProfile::Entry& entry = proto_sample.entry().Get(j);
 338       ASSERT_TRUE(entry.has_address());
 339       const char* instruction_pointer = reinterpret_cast<const char*>(
 340           sample_frames[i][j].instruction_pointer);
 341       const char* module_base_address = reinterpret_cast<const char*>(
 342           modules[sample_frames[i][j].module_index].base_address);
 343       EXPECT_EQ(static_cast<uint64>(instruction_pointer - module_base_address),
 344                 entry.address());
 345       ASSERT_TRUE(entry.has_module_id_index());
 346       EXPECT_EQ(sample_frames[i][j].module_index,
 347                 static_cast<size_t>(entry.module_id_index()));
 348     }
 349   }
 350 }
 351
 352 // Checks that only contiguous duplicate samples are collapsed with
 353 // preserve_sample_ordering = true.
 354 TEST_F(CallStackProfileMetricsProviderTest, RepeatedStacksOrdered) {
 355   const uintptr_t module_base_address = 0x1000;
 356
 357   const Module modules[] = {
 358     Module(
 359         module_base_address,
 360         "ABCD",
 361 #if defined(OS_WIN)
 362         base::FilePath(L"c:\\some\\path\\to\\chrome.exe")
 363 #else
 364         base::FilePath("/some/path/to/chrome")
 365 #endif
 366     )
 367   };
 368
 369   // Duplicate samples in slots 0, 2, and 3.
 370   const Frame sample_frames[][1] = {
 371     { Frame(module_base_address + 0x10, 0), },
 372     { Frame(module_base_address + 0x20, 0), },
 373     { Frame(module_base_address + 0x10, 0), },
 374     { Frame(module_base_address + 0x10, 0) }
 375   };
 376
 377   Profile profile;
 378   profile.modules.insert(profile.modules.end(), &modules[0],
 379       &modules[0] + arraysize(modules));
 380
 381   for (size_t i = 0; i < arraysize(sample_frames); ++i) {
 382     profile.samples.push_back(Sample());
 383     Sample& sample = profile.samples.back();
 384     sample.insert(sample.end(), &sample_frames[i][0],
 385                   &sample_frames[i][0] + arraysize(sample_frames[i]));
 386   }
 387
 388   profile.profile_duration = base::TimeDelta::FromMilliseconds(100);
 389   profile.sampling_period = base::TimeDelta::FromMilliseconds(10);
 390
 391   CallStackProfileMetricsProvider provider;
 392   provider.OnRecordingEnabled();
 393   AppendProfiles(Params(CallStackProfileMetricsProvider::PROCESS_STARTUP, true),
 394                  std::vector<Profile>(1, profile));
 395   ChromeUserMetricsExtension uma_proto;
 396   provider.ProvideGeneralMetrics(&uma_proto);
 397
 398   ASSERT_EQ(1, uma_proto.sampled_profile().size());
 399   const SampledProfile& sampled_profile = uma_proto.sampled_profile().Get(0);
 400   ASSERT_TRUE(sampled_profile.has_call_stack_profile());
 401   const CallStackProfile& call_stack_profile =
 402       sampled_profile.call_stack_profile();
 403
 404   ASSERT_EQ(3, call_stack_profile.sample().size());
 405   for (int i = 0; i < 3; ++i) {
 406     SCOPED_TRACE("sample " + base::IntToString(i));
 407     const CallStackProfile::Sample& proto_sample =
 408         call_stack_profile.sample().Get(i);
 409     ASSERT_EQ(static_cast<int>(arraysize(sample_frames[i])),
 410               proto_sample.entry().size());
 411     ASSERT_TRUE(proto_sample.has_count());
 412     EXPECT_EQ(i == 2 ? 2u : 1u, proto_sample.count());
 413     for (size_t j = 0; j < arraysize(sample_frames[i]); ++j) {
 414       SCOPED_TRACE("frame " + base::IntToString(j));
 415       const CallStackProfile::Entry& entry = proto_sample.entry().Get(j);
 416       ASSERT_TRUE(entry.has_address());
 417       const char* instruction_pointer = reinterpret_cast<const char*>(
 418           sample_frames[i][j].instruction_pointer);
 419       const char* module_base_address = reinterpret_cast<const char*>(
 420           modules[sample_frames[i][j].module_index].base_address);
 421       EXPECT_EQ(static_cast<uint64>(instruction_pointer - module_base_address),
 422                 entry.address());
 423       ASSERT_TRUE(entry.has_module_id_index());
 424       EXPECT_EQ(sample_frames[i][j].module_index,
 425                 static_cast<size_t>(entry.module_id_index()));
 426     }
 427   }
 428 }
 429
 430 // Checks that unknown modules produce an empty Entry.
 431 TEST_F(CallStackProfileMetricsProviderTest, UnknownModule) {
 432   const Frame frame(0x1000, Frame::kUnknownModuleIndex);
 433
 434   Profile profile;
 435
 436   profile.samples.push_back(Sample(1, frame));
 437
 438   profile.profile_duration = base::TimeDelta::FromMilliseconds(100);
 439   profile.sampling_period = base::TimeDelta::FromMilliseconds(10);
 440
 441   CallStackProfileMetricsProvider provider;
 442   provider.OnRecordingEnabled();
 443   AppendProfiles(
 444       Params(CallStackProfileMetricsProvider::PROCESS_STARTUP, false),
 445       std::vector<Profile>(1, profile));
 446   ChromeUserMetricsExtension uma_proto;
 447   provider.ProvideGeneralMetrics(&uma_proto);
 448
 449   ASSERT_EQ(1, uma_proto.sampled_profile().size());
 450   const SampledProfile& sampled_profile = uma_proto.sampled_profile().Get(0);
 451   ASSERT_TRUE(sampled_profile.has_call_stack_profile());
 452   const CallStackProfile& call_stack_profile =
 453       sampled_profile.call_stack_profile();
 454
 455   ASSERT_EQ(1, call_stack_profile.sample().size());
 456   const CallStackProfile::Sample& proto_sample =
 457       call_stack_profile.sample().Get(0);
 458   ASSERT_EQ(1, proto_sample.entry().size());
 459   ASSERT_TRUE(proto_sample.has_count());
 460   EXPECT_EQ(1u, proto_sample.count());
 461   const CallStackProfile::Entry& entry = proto_sample.entry().Get(0);
 462   EXPECT_FALSE(entry.has_address());
 463   EXPECT_FALSE(entry.has_module_id_index());
 464 }
 465
 466 // Checks that pending profiles are only passed back to ProvideGeneralMetrics
 467 // once.
 468 TEST_F(CallStackProfileMetricsProviderTest, ProfilesProvidedOnlyOnce) {
 469   CallStackProfileMetricsProvider provider;
 470   for (int i = 0; i < 2; ++i) {
 471     Profile profile;
 472     profile.samples.push_back(
 473         Sample(1, Frame(0x1000, Frame::kUnknownModuleIndex)));
 474
 475     profile.profile_duration = base::TimeDelta::FromMilliseconds(100);
 476     // Use the sampling period to distinguish the two profiles.
 477     profile.sampling_period = base::TimeDelta::FromMilliseconds(i);
 478
 479     provider.OnRecordingEnabled();
 480     AppendProfiles(
 481         Params(CallStackProfileMetricsProvider::PROCESS_STARTUP, false),
 482         std::vector<Profile>(1, profile));
 483     ChromeUserMetricsExtension uma_proto;
 484     provider.ProvideGeneralMetrics(&uma_proto);
 485
 486     ASSERT_EQ(1, uma_proto.sampled_profile().size());
 487     const SampledProfile& sampled_profile = uma_proto.sampled_profile().Get(0);
 488     ASSERT_TRUE(sampled_profile.has_call_stack_profile());
 489     const CallStackProfile& call_stack_profile =
 490         sampled_profile.call_stack_profile();
 491     ASSERT_TRUE(call_stack_profile.has_sampling_period_ms());
 492     EXPECT_EQ(i, call_stack_profile.sampling_period_ms());
 493   }
 494 }
 495
 496 // Checks that pending profiles are provided to ProvideGeneralMetrics
 497 // when collected before CallStackProfileMetricsProvider is instantiated.
 498 TEST_F(CallStackProfileMetricsProviderTest,
 499        ProfilesProvidedWhenCollectedBeforeInstantiation) {
 500   Profile profile;
 501   profile.samples.push_back(
 502       Sample(1, Frame(0x1000, Frame::kUnknownModuleIndex)));
 503
 504   profile.profile_duration = base::TimeDelta::FromMilliseconds(100);
 505   profile.sampling_period = base::TimeDelta::FromMilliseconds(10);
 506
 507   AppendProfiles(
 508       Params(CallStackProfileMetricsProvider::PROCESS_STARTUP, false),
 509       std::vector<Profile>(1, profile));
 510
 511   CallStackProfileMetricsProvider provider;
 512   provider.OnRecordingEnabled();
 513   ChromeUserMetricsExtension uma_proto;
 514   provider.ProvideGeneralMetrics(&uma_proto);
 515
 516   EXPECT_EQ(1, uma_proto.sampled_profile_size());
 517 }
 518
 519 // Checks that pending profiles are not provided to ProvideGeneralMetrics
 520 // while recording is disabled.
 521 TEST_F(CallStackProfileMetricsProviderTest, ProfilesNotProvidedWhileDisabled) {
 522   Profile profile;
 523   profile.samples.push_back(
 524       Sample(1, Frame(0x1000, Frame::kUnknownModuleIndex)));
 525
 526   profile.profile_duration = base::TimeDelta::FromMilliseconds(100);
 527   profile.sampling_period = base::TimeDelta::FromMilliseconds(10);
 528
 529   CallStackProfileMetricsProvider provider;
 530   provider.OnRecordingDisabled();
 531   AppendProfiles(
 532       Params(CallStackProfileMetricsProvider::PROCESS_STARTUP, false),
 533       std::vector<Profile>(1, profile));
 534   ChromeUserMetricsExtension uma_proto;
 535   provider.ProvideGeneralMetrics(&uma_proto);
 536
 537   EXPECT_EQ(0, uma_proto.sampled_profile_size());
 538 }
 539
 540 // Checks that pending profiles are not provided to ProvideGeneralMetrics
 541 // if recording is disabled while profiling.
 542 TEST_F(CallStackProfileMetricsProviderTest,
 543        ProfilesNotProvidedAfterChangeToDisabled) {
 544   Profile profile;
 545   profile.samples.push_back(
 546       Sample(1, Frame(0x1000, Frame::kUnknownModuleIndex)));
 547
 548   profile.profile_duration = base::TimeDelta::FromMilliseconds(100);
 549   profile.sampling_period = base::TimeDelta::FromMilliseconds(10);
 550
 551   CallStackProfileMetricsProvider provider;
 552   provider.OnRecordingEnabled();
 553   base::StackSamplingProfiler::CompletedCallback callback =
 554       CallStackProfileMetricsProvider::GetProfilerCallback(
 555           Params(CallStackProfileMetricsProvider::PROCESS_STARTUP, false));
 556
 557   provider.OnRecordingDisabled();
 558   callback.Run(std::vector<Profile>(1, profile));
 559   ChromeUserMetricsExtension uma_proto;
 560   provider.ProvideGeneralMetrics(&uma_proto);
 561
 562   EXPECT_EQ(0, uma_proto.sampled_profile_size());
 563 }
 564
 565 // Checks that pending profiles are not provided to ProvideGeneralMetrics if
 566 // recording is enabled, but then disabled and reenabled while profiling.
 567 TEST_F(CallStackProfileMetricsProviderTest,
 568        ProfilesNotProvidedAfterChangeToDisabledThenEnabled) {
 569   Profile profile;
 570   profile.samples.push_back(
 571       Sample(1, Frame(0x1000, Frame::kUnknownModuleIndex)));
 572
 573   profile.profile_duration = base::TimeDelta::FromMilliseconds(100);
 574   profile.sampling_period = base::TimeDelta::FromMilliseconds(10);
 575
 576   CallStackProfileMetricsProvider provider;
 577   provider.OnRecordingEnabled();
 578   base::StackSamplingProfiler::CompletedCallback callback =
 579       CallStackProfileMetricsProvider::GetProfilerCallback(
 580           Params(CallStackProfileMetricsProvider::PROCESS_STARTUP, false));
 581
 582   provider.OnRecordingDisabled();
 583   provider.OnRecordingEnabled();
 584   callback.Run(std::vector<Profile>(1, profile));
 585   ChromeUserMetricsExtension uma_proto;
 586   provider.ProvideGeneralMetrics(&uma_proto);
 587
 588   EXPECT_EQ(0, uma_proto.sampled_profile_size());
 589 }
 590
 591 // Checks that pending profiles are not provided to ProvideGeneralMetrics
 592 // if recording is disabled, but then enabled while profiling.
 593 TEST_F(CallStackProfileMetricsProviderTest,
 594        ProfilesNotProvidedAfterChangeFromDisabled) {
 595   Profile profile;
 596   profile.samples.push_back(
 597       Sample(1, Frame(0x1000, Frame::kUnknownModuleIndex)));
 598
 599   profile.profile_duration = base::TimeDelta::FromMilliseconds(100);
 600   profile.sampling_period = base::TimeDelta::FromMilliseconds(10);
 601
 602   CallStackProfileMetricsProvider provider;
 603   provider.OnRecordingDisabled();
 604   base::StackSamplingProfiler::CompletedCallback callback =
 605       CallStackProfileMetricsProvider::GetProfilerCallback(
 606           Params(CallStackProfileMetricsProvider::PROCESS_STARTUP, false));
 607
 608   provider.OnRecordingEnabled();
 609   callback.Run(std::vector<Profile>(1, profile));
 610   ChromeUserMetricsExtension uma_proto;
 611   provider.ProvideGeneralMetrics(&uma_proto);
 612
 613   EXPECT_EQ(0, uma_proto.sampled_profile_size());
 614 }
 615
 616 }  // namespace metrics