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1 // Copyright (c) 2012 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 "base/trace_event/trace_event.h"
6 
7 #include <math.h>
8 #include <stddef.h>
9 #include <stdint.h>
10 
11 #include <cstdlib>
12 #include <memory>
13 #include <utility>
14 
15 #include "base/bind.h"
16 #include "base/command_line.h"
17 #include "base/json/json_reader.h"
18 #include "base/json/json_writer.h"
19 #include "base/location.h"
20 #include "base/macros.h"
21 #include "base/memory/ptr_util.h"
22 #include "base/memory/ref_counted_memory.h"
23 #include "base/memory/singleton.h"
24 #include "base/process/process_handle.h"
25 #include "base/single_thread_task_runner.h"
26 #include "base/stl_util.h"
27 #include "base/strings/pattern.h"
28 #include "base/strings/stringprintf.h"
29 #include "base/synchronization/waitable_event.h"
30 #include "base/threading/platform_thread.h"
31 #include "base/threading/thread.h"
32 #include "base/time/time.h"
33 #include "base/trace_event/event_name_filter.h"
34 #include "base/trace_event/heap_profiler_event_filter.h"
35 #include "base/trace_event/trace_buffer.h"
36 #include "base/trace_event/trace_event.h"
37 #include "base/trace_event/trace_event_filter.h"
38 #include "base/trace_event/trace_event_filter_test_utils.h"
39 #include "base/values.h"
40 #include "testing/gmock/include/gmock/gmock.h"
41 #include "testing/gtest/include/gtest/gtest.h"
42 
43 namespace base {
44 namespace trace_event {
45 
46 namespace {
47 
48 enum CompareOp {
49   IS_EQUAL,
50   IS_NOT_EQUAL,
51 };
52 
53 struct JsonKeyValue {
54   const char* key;
55   const char* value;
56   CompareOp op;
57 };
58 
59 const int kThreadId = 42;
60 const int kAsyncId = 5;
61 const char kAsyncIdStr[] = "0x5";
62 const int kAsyncId2 = 6;
63 const char kAsyncId2Str[] = "0x6";
64 const int kFlowId = 7;
65 const char kFlowIdStr[] = "0x7";
66 
67 const  char kRecordAllCategoryFilter[] = "*";
68 
69 class TraceEventTestFixture : public testing::Test {
70  public:
71   void OnTraceDataCollected(
72       WaitableEvent* flush_complete_event,
73       const scoped_refptr<base::RefCountedString>& events_str,
74       bool has_more_events);
75   DictionaryValue* FindMatchingTraceEntry(const JsonKeyValue* key_values);
76   DictionaryValue* FindNamePhase(const char* name, const char* phase);
77   DictionaryValue* FindNamePhaseKeyValue(const char* name,
78                                          const char* phase,
79                                          const char* key,
80                                          const char* value);
81   void DropTracedMetadataRecords();
82   bool FindMatchingValue(const char* key,
83                          const char* value);
84   bool FindNonMatchingValue(const char* key,
85                             const char* value);
Clear()86   void Clear() {
87     trace_parsed_.Clear();
88     json_output_.json_output.clear();
89   }
90 
BeginTrace()91   void BeginTrace() {
92     BeginSpecificTrace("*");
93   }
94 
BeginSpecificTrace(const std::string & filter)95   void BeginSpecificTrace(const std::string& filter) {
96     TraceLog::GetInstance()->SetEnabled(TraceConfig(filter, ""),
97                                         TraceLog::RECORDING_MODE);
98   }
99 
CancelTrace()100   void CancelTrace() {
101     WaitableEvent flush_complete_event(
102         WaitableEvent::ResetPolicy::AUTOMATIC,
103         WaitableEvent::InitialState::NOT_SIGNALED);
104     CancelTraceAsync(&flush_complete_event);
105     flush_complete_event.Wait();
106   }
107 
EndTraceAndFlush()108   void EndTraceAndFlush() {
109     num_flush_callbacks_ = 0;
110     WaitableEvent flush_complete_event(
111         WaitableEvent::ResetPolicy::AUTOMATIC,
112         WaitableEvent::InitialState::NOT_SIGNALED);
113     EndTraceAndFlushAsync(&flush_complete_event);
114     flush_complete_event.Wait();
115   }
116 
117   // Used when testing thread-local buffers which requires the thread initiating
118   // flush to have a message loop.
EndTraceAndFlushInThreadWithMessageLoop()119   void EndTraceAndFlushInThreadWithMessageLoop() {
120     WaitableEvent flush_complete_event(
121         WaitableEvent::ResetPolicy::AUTOMATIC,
122         WaitableEvent::InitialState::NOT_SIGNALED);
123     Thread flush_thread("flush");
124     flush_thread.Start();
125     flush_thread.task_runner()->PostTask(
126         FROM_HERE,
127         base::BindOnce(&TraceEventTestFixture::EndTraceAndFlushAsync,
128                        base::Unretained(this), &flush_complete_event));
129     flush_complete_event.Wait();
130   }
131 
CancelTraceAsync(WaitableEvent * flush_complete_event)132   void CancelTraceAsync(WaitableEvent* flush_complete_event) {
133     TraceLog::GetInstance()->CancelTracing(
134         base::Bind(&TraceEventTestFixture::OnTraceDataCollected,
135                    base::Unretained(static_cast<TraceEventTestFixture*>(this)),
136                    base::Unretained(flush_complete_event)));
137   }
138 
EndTraceAndFlushAsync(WaitableEvent * flush_complete_event)139   void EndTraceAndFlushAsync(WaitableEvent* flush_complete_event) {
140     TraceLog::GetInstance()->SetDisabled(TraceLog::RECORDING_MODE |
141                                          TraceLog::FILTERING_MODE);
142     TraceLog::GetInstance()->Flush(
143         base::Bind(&TraceEventTestFixture::OnTraceDataCollected,
144                    base::Unretained(static_cast<TraceEventTestFixture*>(this)),
145                    base::Unretained(flush_complete_event)));
146   }
147 
SetUp()148   void SetUp() override {
149     const char* name = PlatformThread::GetName();
150     old_thread_name_ = name ? strdup(name) : nullptr;
151 
152     TraceLog::ResetForTesting();
153     TraceLog* tracelog = TraceLog::GetInstance();
154     ASSERT_TRUE(tracelog);
155     ASSERT_FALSE(tracelog->IsEnabled());
156     trace_buffer_.SetOutputCallback(json_output_.GetCallback());
157     num_flush_callbacks_ = 0;
158   }
TearDown()159   void TearDown() override {
160     if (TraceLog::GetInstance())
161       EXPECT_FALSE(TraceLog::GetInstance()->IsEnabled());
162     PlatformThread::SetName(old_thread_name_ ? old_thread_name_ : "");
163     free(old_thread_name_);
164     old_thread_name_ = nullptr;
165     // We want our singleton torn down after each test.
166     TraceLog::ResetForTesting();
167   }
168 
169   char* old_thread_name_;
170   ListValue trace_parsed_;
171   TraceResultBuffer trace_buffer_;
172   TraceResultBuffer::SimpleOutput json_output_;
173   size_t num_flush_callbacks_;
174 
175  private:
176   // We want our singleton torn down after each test.
177   ShadowingAtExitManager at_exit_manager_;
178   Lock lock_;
179 };
180 
OnTraceDataCollected(WaitableEvent * flush_complete_event,const scoped_refptr<base::RefCountedString> & events_str,bool has_more_events)181 void TraceEventTestFixture::OnTraceDataCollected(
182     WaitableEvent* flush_complete_event,
183     const scoped_refptr<base::RefCountedString>& events_str,
184     bool has_more_events) {
185   num_flush_callbacks_++;
186   if (num_flush_callbacks_ > 1) {
187     EXPECT_FALSE(events_str->data().empty());
188   }
189   AutoLock lock(lock_);
190   json_output_.json_output.clear();
191   trace_buffer_.Start();
192   trace_buffer_.AddFragment(events_str->data());
193   trace_buffer_.Finish();
194 
195   std::unique_ptr<Value> root =
196       base::JSONReader::Read(json_output_.json_output, JSON_PARSE_RFC);
197 
198   if (!root.get()) {
199     LOG(ERROR) << json_output_.json_output;
200   }
201 
202   ListValue* root_list = nullptr;
203   ASSERT_TRUE(root.get());
204   ASSERT_TRUE(root->GetAsList(&root_list));
205 
206   // Move items into our aggregate collection
207   while (root_list->GetSize()) {
208     std::unique_ptr<Value> item;
209     root_list->Remove(0, &item);
210     trace_parsed_.Append(std::move(item));
211   }
212 
213   if (!has_more_events)
214     flush_complete_event->Signal();
215 }
216 
CompareJsonValues(const std::string & lhs,const std::string & rhs,CompareOp op)217 static bool CompareJsonValues(const std::string& lhs,
218                               const std::string& rhs,
219                               CompareOp op) {
220   switch (op) {
221     case IS_EQUAL:
222       return lhs == rhs;
223     case IS_NOT_EQUAL:
224       return lhs != rhs;
225     default:
226       CHECK(0);
227   }
228   return false;
229 }
230 
IsKeyValueInDict(const JsonKeyValue * key_value,DictionaryValue * dict)231 static bool IsKeyValueInDict(const JsonKeyValue* key_value,
232                              DictionaryValue* dict) {
233   Value* value = nullptr;
234   std::string value_str;
235   if (dict->Get(key_value->key, &value) &&
236       value->GetAsString(&value_str) &&
237       CompareJsonValues(value_str, key_value->value, key_value->op))
238     return true;
239 
240   // Recurse to test arguments
241   DictionaryValue* args_dict = nullptr;
242   dict->GetDictionary("args", &args_dict);
243   if (args_dict)
244     return IsKeyValueInDict(key_value, args_dict);
245 
246   return false;
247 }
248 
IsAllKeyValueInDict(const JsonKeyValue * key_values,DictionaryValue * dict)249 static bool IsAllKeyValueInDict(const JsonKeyValue* key_values,
250                                 DictionaryValue* dict) {
251   // Scan all key_values, they must all be present and equal.
252   while (key_values && key_values->key) {
253     if (!IsKeyValueInDict(key_values, dict))
254       return false;
255     ++key_values;
256   }
257   return true;
258 }
259 
FindMatchingTraceEntry(const JsonKeyValue * key_values)260 DictionaryValue* TraceEventTestFixture::FindMatchingTraceEntry(
261     const JsonKeyValue* key_values) {
262   // Scan all items
263   size_t trace_parsed_count = trace_parsed_.GetSize();
264   for (size_t i = 0; i < trace_parsed_count; i++) {
265     Value* value = nullptr;
266     trace_parsed_.Get(i, &value);
267     if (!value || value->type() != Value::Type::DICTIONARY)
268       continue;
269     DictionaryValue* dict = static_cast<DictionaryValue*>(value);
270 
271     if (IsAllKeyValueInDict(key_values, dict))
272       return dict;
273   }
274   return nullptr;
275 }
276 
DropTracedMetadataRecords()277 void TraceEventTestFixture::DropTracedMetadataRecords() {
278   std::unique_ptr<ListValue> old_trace_parsed(trace_parsed_.CreateDeepCopy());
279   size_t old_trace_parsed_size = old_trace_parsed->GetSize();
280   trace_parsed_.Clear();
281 
282   for (size_t i = 0; i < old_trace_parsed_size; i++) {
283     Value* value = nullptr;
284     old_trace_parsed->Get(i, &value);
285     if (!value || value->type() != Value::Type::DICTIONARY) {
286       trace_parsed_.Append(value->CreateDeepCopy());
287       continue;
288     }
289     DictionaryValue* dict = static_cast<DictionaryValue*>(value);
290     std::string tmp;
291     if (dict->GetString("ph", &tmp) && tmp == "M")
292       continue;
293 
294     trace_parsed_.Append(value->CreateDeepCopy());
295   }
296 }
297 
FindNamePhase(const char * name,const char * phase)298 DictionaryValue* TraceEventTestFixture::FindNamePhase(const char* name,
299                                                       const char* phase) {
300   JsonKeyValue key_values[] = {{"name", name, IS_EQUAL},
301                                {"ph", phase, IS_EQUAL},
302                                {nullptr, nullptr, IS_EQUAL}};
303   return FindMatchingTraceEntry(key_values);
304 }
305 
FindNamePhaseKeyValue(const char * name,const char * phase,const char * key,const char * value)306 DictionaryValue* TraceEventTestFixture::FindNamePhaseKeyValue(
307     const char* name,
308     const char* phase,
309     const char* key,
310     const char* value) {
311   JsonKeyValue key_values[] = {{"name", name, IS_EQUAL},
312                                {"ph", phase, IS_EQUAL},
313                                {key, value, IS_EQUAL},
314                                {nullptr, nullptr, IS_EQUAL}};
315   return FindMatchingTraceEntry(key_values);
316 }
317 
FindMatchingValue(const char * key,const char * value)318 bool TraceEventTestFixture::FindMatchingValue(const char* key,
319                                               const char* value) {
320   JsonKeyValue key_values[] = {{key, value, IS_EQUAL},
321                                {nullptr, nullptr, IS_EQUAL}};
322   return FindMatchingTraceEntry(key_values);
323 }
324 
FindNonMatchingValue(const char * key,const char * value)325 bool TraceEventTestFixture::FindNonMatchingValue(const char* key,
326                                                  const char* value) {
327   JsonKeyValue key_values[] = {{key, value, IS_NOT_EQUAL},
328                                {nullptr, nullptr, IS_EQUAL}};
329   return FindMatchingTraceEntry(key_values);
330 }
331 
IsStringInDict(const char * string_to_match,const DictionaryValue * dict)332 bool IsStringInDict(const char* string_to_match, const DictionaryValue* dict) {
333   for (DictionaryValue::Iterator it(*dict); !it.IsAtEnd(); it.Advance()) {
334     if (it.key().find(string_to_match) != std::string::npos)
335       return true;
336 
337     std::string value_str;
338     it.value().GetAsString(&value_str);
339     if (value_str.find(string_to_match) != std::string::npos)
340       return true;
341   }
342 
343   // Recurse to test arguments
344   const DictionaryValue* args_dict = nullptr;
345   dict->GetDictionary("args", &args_dict);
346   if (args_dict)
347     return IsStringInDict(string_to_match, args_dict);
348 
349   return false;
350 }
351 
FindTraceEntry(const ListValue & trace_parsed,const char * string_to_match,const DictionaryValue * match_after_this_item=nullptr)352 const DictionaryValue* FindTraceEntry(
353     const ListValue& trace_parsed,
354     const char* string_to_match,
355     const DictionaryValue* match_after_this_item = nullptr) {
356   // Scan all items
357   size_t trace_parsed_count = trace_parsed.GetSize();
358   for (size_t i = 0; i < trace_parsed_count; i++) {
359     const Value* value = nullptr;
360     trace_parsed.Get(i, &value);
361     if (match_after_this_item) {
362       if (value == match_after_this_item)
363         match_after_this_item = nullptr;
364       continue;
365     }
366     if (!value || value->type() != Value::Type::DICTIONARY)
367       continue;
368     const DictionaryValue* dict = static_cast<const DictionaryValue*>(value);
369 
370     if (IsStringInDict(string_to_match, dict))
371       return dict;
372   }
373   return nullptr;
374 }
375 
FindTraceEntries(const ListValue & trace_parsed,const char * string_to_match)376 std::vector<const DictionaryValue*> FindTraceEntries(
377     const ListValue& trace_parsed,
378     const char* string_to_match) {
379   std::vector<const DictionaryValue*> hits;
380   size_t trace_parsed_count = trace_parsed.GetSize();
381   for (size_t i = 0; i < trace_parsed_count; i++) {
382     const Value* value = nullptr;
383     trace_parsed.Get(i, &value);
384     if (!value || value->type() != Value::Type::DICTIONARY)
385       continue;
386     const DictionaryValue* dict = static_cast<const DictionaryValue*>(value);
387 
388     if (IsStringInDict(string_to_match, dict))
389       hits.push_back(dict);
390   }
391   return hits;
392 }
393 
394 const char kControlCharacters[] = "\001\002\003\n\r";
395 
TraceWithAllMacroVariants(WaitableEvent * task_complete_event)396 void TraceWithAllMacroVariants(WaitableEvent* task_complete_event) {
397   {
398     TRACE_EVENT0("all", "TRACE_EVENT0 call");
399     TRACE_EVENT1("all", "TRACE_EVENT1 call", "name1", "value1");
400     TRACE_EVENT2("all", "TRACE_EVENT2 call",
401                  "name1", "\"value1\"",
402                  "name2", "value\\2");
403 
404     TRACE_EVENT_INSTANT0("all", "TRACE_EVENT_INSTANT0 call",
405                          TRACE_EVENT_SCOPE_GLOBAL);
406     TRACE_EVENT_INSTANT1("all", "TRACE_EVENT_INSTANT1 call",
407                          TRACE_EVENT_SCOPE_PROCESS, "name1", "value1");
408     TRACE_EVENT_INSTANT2("all", "TRACE_EVENT_INSTANT2 call",
409                          TRACE_EVENT_SCOPE_THREAD,
410                          "name1", "value1",
411                          "name2", "value2");
412 
413     TRACE_EVENT_BEGIN0("all", "TRACE_EVENT_BEGIN0 call");
414     TRACE_EVENT_BEGIN1("all", "TRACE_EVENT_BEGIN1 call", "name1", "value1");
415     TRACE_EVENT_BEGIN2("all", "TRACE_EVENT_BEGIN2 call",
416                        "name1", "value1",
417                        "name2", "value2");
418 
419     TRACE_EVENT_END0("all", "TRACE_EVENT_END0 call");
420     TRACE_EVENT_END1("all", "TRACE_EVENT_END1 call", "name1", "value1");
421     TRACE_EVENT_END2("all", "TRACE_EVENT_END2 call",
422                      "name1", "value1",
423                      "name2", "value2");
424 
425     TRACE_EVENT_ASYNC_BEGIN0("all", "TRACE_EVENT_ASYNC_BEGIN0 call", kAsyncId);
426     TRACE_EVENT_ASYNC_BEGIN1("all", "TRACE_EVENT_ASYNC_BEGIN1 call", kAsyncId,
427                              "name1", "value1");
428     TRACE_EVENT_ASYNC_BEGIN2("all", "TRACE_EVENT_ASYNC_BEGIN2 call", kAsyncId,
429                              "name1", "value1",
430                              "name2", "value2");
431 
432     TRACE_EVENT_ASYNC_STEP_INTO0("all", "TRACE_EVENT_ASYNC_STEP_INTO0 call",
433                                  kAsyncId, "step_begin1");
434     TRACE_EVENT_ASYNC_STEP_INTO1("all", "TRACE_EVENT_ASYNC_STEP_INTO1 call",
435                                  kAsyncId, "step_begin2", "name1", "value1");
436 
437     TRACE_EVENT_ASYNC_END0("all", "TRACE_EVENT_ASYNC_END0 call", kAsyncId);
438     TRACE_EVENT_ASYNC_END1("all", "TRACE_EVENT_ASYNC_END1 call", kAsyncId,
439                            "name1", "value1");
440     TRACE_EVENT_ASYNC_END2("all", "TRACE_EVENT_ASYNC_END2 call", kAsyncId,
441                            "name1", "value1",
442                            "name2", "value2");
443 
444     TRACE_EVENT_FLOW_BEGIN0("all", "TRACE_EVENT_FLOW_BEGIN0 call", kFlowId);
445     TRACE_EVENT_FLOW_STEP0("all", "TRACE_EVENT_FLOW_STEP0 call",
446                            kFlowId, "step1");
447     TRACE_EVENT_FLOW_END_BIND_TO_ENCLOSING0("all",
448         "TRACE_EVENT_FLOW_END_BIND_TO_ENCLOSING0 call", kFlowId);
449 
450     TRACE_COUNTER1("all", "TRACE_COUNTER1 call", 31415);
451     TRACE_COUNTER2("all", "TRACE_COUNTER2 call",
452                    "a", 30000,
453                    "b", 1415);
454 
455     TRACE_COUNTER_WITH_TIMESTAMP1("all", "TRACE_COUNTER_WITH_TIMESTAMP1 call",
456                                   TimeTicks::FromInternalValue(42), 31415);
457     TRACE_COUNTER_WITH_TIMESTAMP2("all", "TRACE_COUNTER_WITH_TIMESTAMP2 call",
458                                   TimeTicks::FromInternalValue(42),
459                                   "a", 30000, "b", 1415);
460 
461     TRACE_COUNTER_ID1("all", "TRACE_COUNTER_ID1 call", 0x319009, 31415);
462     TRACE_COUNTER_ID2("all", "TRACE_COUNTER_ID2 call", 0x319009,
463                       "a", 30000, "b", 1415);
464 
465     TRACE_EVENT_COPY_BEGIN_WITH_ID_TID_AND_TIMESTAMP0("all",
466         "TRACE_EVENT_COPY_BEGIN_WITH_ID_TID_AND_TIMESTAMP0 call",
467         kAsyncId, kThreadId, TimeTicks::FromInternalValue(12345));
468     TRACE_EVENT_COPY_END_WITH_ID_TID_AND_TIMESTAMP0("all",
469         "TRACE_EVENT_COPY_END_WITH_ID_TID_AND_TIMESTAMP0 call",
470         kAsyncId, kThreadId, TimeTicks::FromInternalValue(23456));
471 
472     TRACE_EVENT_BEGIN_WITH_ID_TID_AND_TIMESTAMP0("all",
473         "TRACE_EVENT_BEGIN_WITH_ID_TID_AND_TIMESTAMP0 call",
474         kAsyncId2, kThreadId, TimeTicks::FromInternalValue(34567));
475     TRACE_EVENT_ASYNC_STEP_PAST0("all", "TRACE_EVENT_ASYNC_STEP_PAST0 call",
476                                  kAsyncId2, "step_end1");
477     TRACE_EVENT_ASYNC_STEP_PAST1("all", "TRACE_EVENT_ASYNC_STEP_PAST1 call",
478                                  kAsyncId2, "step_end2", "name1", "value1");
479 
480     TRACE_EVENT_END_WITH_ID_TID_AND_TIMESTAMP0("all",
481         "TRACE_EVENT_END_WITH_ID_TID_AND_TIMESTAMP0 call",
482         kAsyncId2, kThreadId, TimeTicks::FromInternalValue(45678));
483 
484     TRACE_EVENT_OBJECT_CREATED_WITH_ID("all", "tracked object 1", 0x42);
485     TRACE_EVENT_OBJECT_SNAPSHOT_WITH_ID(
486         "all", "tracked object 1", 0x42, "hello");
487     TRACE_EVENT_OBJECT_DELETED_WITH_ID("all", "tracked object 1", 0x42);
488 
489     TraceScopedTrackableObject<int> trackable("all", "tracked object 2",
490                                               0x2128506);
491     trackable.snapshot("world");
492 
493     TRACE_EVENT_OBJECT_CREATED_WITH_ID(
494         "all", "tracked object 3", TRACE_ID_WITH_SCOPE("scope", 0x42));
495     TRACE_EVENT_OBJECT_SNAPSHOT_WITH_ID(
496         "all", "tracked object 3", TRACE_ID_WITH_SCOPE("scope", 0x42), "hello");
497     TRACE_EVENT_OBJECT_DELETED_WITH_ID(
498         "all", "tracked object 3", TRACE_ID_WITH_SCOPE("scope", 0x42));
499 
500     TRACE_EVENT1(kControlCharacters, kControlCharacters,
501                  kControlCharacters, kControlCharacters);
502 
503     uint64_t context_id = 0x20151021;
504 
505     TRACE_EVENT_ENTER_CONTEXT("all", "TRACE_EVENT_ENTER_CONTEXT call",
506                               TRACE_ID_WITH_SCOPE("scope", context_id));
507     TRACE_EVENT_LEAVE_CONTEXT("all", "TRACE_EVENT_LEAVE_CONTEXT call",
508                               TRACE_ID_WITH_SCOPE("scope", context_id));
509     TRACE_EVENT_SCOPED_CONTEXT("disabled-by-default-cat",
510                                "TRACE_EVENT_SCOPED_CONTEXT disabled call",
511                                context_id);
512     TRACE_EVENT_SCOPED_CONTEXT("all", "TRACE_EVENT_SCOPED_CONTEXT call",
513                                context_id);
514 
515     TRACE_LINK_IDS("all", "TRACE_LINK_IDS simple call", 0x1000, 0x2000);
516     TRACE_LINK_IDS("all", "TRACE_LINK_IDS scoped call",
517                    TRACE_ID_WITH_SCOPE("scope 1", 0x1000),
518                    TRACE_ID_WITH_SCOPE("scope 2", 0x2000));
519     TRACE_LINK_IDS("all", "TRACE_LINK_IDS to a local ID", 0x1000,
520                    TRACE_ID_LOCAL(0x2000));
521     TRACE_LINK_IDS("all", "TRACE_LINK_IDS to a global ID", 0x1000,
522                    TRACE_ID_GLOBAL(0x2000));
523     TRACE_LINK_IDS("all", "TRACE_LINK_IDS to a composite ID", 0x1000,
524                    TRACE_ID_WITH_SCOPE("scope 1", 0x2000, 0x3000));
525 
526     TRACE_EVENT_ASYNC_BEGIN0("all", "async default process scope", 0x1000);
527     TRACE_EVENT_ASYNC_BEGIN0("all", "async local id", TRACE_ID_LOCAL(0x2000));
528     TRACE_EVENT_ASYNC_BEGIN0("all", "async global id", TRACE_ID_GLOBAL(0x3000));
529     TRACE_EVENT_ASYNC_BEGIN0("all", "async global id with scope string",
530                              TRACE_ID_WITH_SCOPE("scope string",
531                                                  TRACE_ID_GLOBAL(0x4000)));
532   }  // Scope close causes TRACE_EVENT0 etc to send their END events.
533 
534   if (task_complete_event)
535     task_complete_event->Signal();
536 }
537 
ValidateAllTraceMacrosCreatedData(const ListValue & trace_parsed)538 void ValidateAllTraceMacrosCreatedData(const ListValue& trace_parsed) {
539   const DictionaryValue* item = nullptr;
540 
541 #define EXPECT_FIND_(string) \
542     item = FindTraceEntry(trace_parsed, string); \
543     EXPECT_TRUE(item);
544 #define EXPECT_NOT_FIND_(string) \
545     item = FindTraceEntry(trace_parsed, string); \
546     EXPECT_FALSE(item);
547 #define EXPECT_SUB_FIND_(string) \
548     if (item) \
549       EXPECT_TRUE(IsStringInDict(string, item));
550 
551   EXPECT_FIND_("TRACE_EVENT0 call");
552   {
553     std::string ph;
554     std::string ph_end;
555     EXPECT_TRUE((item = FindTraceEntry(trace_parsed, "TRACE_EVENT0 call")));
556     EXPECT_TRUE((item && item->GetString("ph", &ph)));
557     EXPECT_EQ("X", ph);
558     item = FindTraceEntry(trace_parsed, "TRACE_EVENT0 call", item);
559     EXPECT_FALSE(item);
560   }
561   EXPECT_FIND_("TRACE_EVENT1 call");
562   EXPECT_SUB_FIND_("name1");
563   EXPECT_SUB_FIND_("value1");
564   EXPECT_FIND_("TRACE_EVENT2 call");
565   EXPECT_SUB_FIND_("name1");
566   EXPECT_SUB_FIND_("\"value1\"");
567   EXPECT_SUB_FIND_("name2");
568   EXPECT_SUB_FIND_("value\\2");
569 
570   EXPECT_FIND_("TRACE_EVENT_INSTANT0 call");
571   {
572     std::string scope;
573     EXPECT_TRUE((item && item->GetString("s", &scope)));
574     EXPECT_EQ("g", scope);
575   }
576   EXPECT_FIND_("TRACE_EVENT_INSTANT1 call");
577   {
578     std::string scope;
579     EXPECT_TRUE((item && item->GetString("s", &scope)));
580     EXPECT_EQ("p", scope);
581   }
582   EXPECT_SUB_FIND_("name1");
583   EXPECT_SUB_FIND_("value1");
584   EXPECT_FIND_("TRACE_EVENT_INSTANT2 call");
585   {
586     std::string scope;
587     EXPECT_TRUE((item && item->GetString("s", &scope)));
588     EXPECT_EQ("t", scope);
589   }
590   EXPECT_SUB_FIND_("name1");
591   EXPECT_SUB_FIND_("value1");
592   EXPECT_SUB_FIND_("name2");
593   EXPECT_SUB_FIND_("value2");
594 
595   EXPECT_FIND_("TRACE_EVENT_BEGIN0 call");
596   EXPECT_FIND_("TRACE_EVENT_BEGIN1 call");
597   EXPECT_SUB_FIND_("name1");
598   EXPECT_SUB_FIND_("value1");
599   EXPECT_FIND_("TRACE_EVENT_BEGIN2 call");
600   EXPECT_SUB_FIND_("name1");
601   EXPECT_SUB_FIND_("value1");
602   EXPECT_SUB_FIND_("name2");
603   EXPECT_SUB_FIND_("value2");
604 
605   EXPECT_FIND_("TRACE_EVENT_END0 call");
606   EXPECT_FIND_("TRACE_EVENT_END1 call");
607   EXPECT_SUB_FIND_("name1");
608   EXPECT_SUB_FIND_("value1");
609   EXPECT_FIND_("TRACE_EVENT_END2 call");
610   EXPECT_SUB_FIND_("name1");
611   EXPECT_SUB_FIND_("value1");
612   EXPECT_SUB_FIND_("name2");
613   EXPECT_SUB_FIND_("value2");
614 
615   EXPECT_FIND_("TRACE_EVENT_ASYNC_BEGIN0 call");
616   EXPECT_SUB_FIND_("id");
617   EXPECT_SUB_FIND_(kAsyncIdStr);
618   EXPECT_FIND_("TRACE_EVENT_ASYNC_BEGIN1 call");
619   EXPECT_SUB_FIND_("id");
620   EXPECT_SUB_FIND_(kAsyncIdStr);
621   EXPECT_SUB_FIND_("name1");
622   EXPECT_SUB_FIND_("value1");
623   EXPECT_FIND_("TRACE_EVENT_ASYNC_BEGIN2 call");
624   EXPECT_SUB_FIND_("id");
625   EXPECT_SUB_FIND_(kAsyncIdStr);
626   EXPECT_SUB_FIND_("name1");
627   EXPECT_SUB_FIND_("value1");
628   EXPECT_SUB_FIND_("name2");
629   EXPECT_SUB_FIND_("value2");
630 
631   EXPECT_FIND_("TRACE_EVENT_ASYNC_STEP_INTO0 call");
632   EXPECT_SUB_FIND_("id");
633   EXPECT_SUB_FIND_(kAsyncIdStr);
634   EXPECT_SUB_FIND_("step_begin1");
635   EXPECT_FIND_("TRACE_EVENT_ASYNC_STEP_INTO1 call");
636   EXPECT_SUB_FIND_("id");
637   EXPECT_SUB_FIND_(kAsyncIdStr);
638   EXPECT_SUB_FIND_("step_begin2");
639   EXPECT_SUB_FIND_("name1");
640   EXPECT_SUB_FIND_("value1");
641 
642   EXPECT_FIND_("TRACE_EVENT_ASYNC_END0 call");
643   EXPECT_SUB_FIND_("id");
644   EXPECT_SUB_FIND_(kAsyncIdStr);
645   EXPECT_FIND_("TRACE_EVENT_ASYNC_END1 call");
646   EXPECT_SUB_FIND_("id");
647   EXPECT_SUB_FIND_(kAsyncIdStr);
648   EXPECT_SUB_FIND_("name1");
649   EXPECT_SUB_FIND_("value1");
650   EXPECT_FIND_("TRACE_EVENT_ASYNC_END2 call");
651   EXPECT_SUB_FIND_("id");
652   EXPECT_SUB_FIND_(kAsyncIdStr);
653   EXPECT_SUB_FIND_("name1");
654   EXPECT_SUB_FIND_("value1");
655   EXPECT_SUB_FIND_("name2");
656   EXPECT_SUB_FIND_("value2");
657 
658   EXPECT_FIND_("TRACE_EVENT_FLOW_BEGIN0 call");
659   EXPECT_SUB_FIND_("id");
660   EXPECT_SUB_FIND_(kFlowIdStr);
661   EXPECT_FIND_("TRACE_EVENT_FLOW_STEP0 call");
662   EXPECT_SUB_FIND_("id");
663   EXPECT_SUB_FIND_(kFlowIdStr);
664   EXPECT_SUB_FIND_("step1");
665   EXPECT_FIND_("TRACE_EVENT_FLOW_END_BIND_TO_ENCLOSING0 call");
666   EXPECT_SUB_FIND_("id");
667   EXPECT_SUB_FIND_(kFlowIdStr);
668 
669   EXPECT_FIND_("TRACE_COUNTER1 call");
670   {
671     std::string ph;
672     EXPECT_TRUE((item && item->GetString("ph", &ph)));
673     EXPECT_EQ("C", ph);
674 
675     int value;
676     EXPECT_TRUE((item && item->GetInteger("args.value", &value)));
677     EXPECT_EQ(31415, value);
678   }
679 
680   EXPECT_FIND_("TRACE_COUNTER2 call");
681   {
682     std::string ph;
683     EXPECT_TRUE((item && item->GetString("ph", &ph)));
684     EXPECT_EQ("C", ph);
685 
686     int value;
687     EXPECT_TRUE((item && item->GetInteger("args.a", &value)));
688     EXPECT_EQ(30000, value);
689 
690     EXPECT_TRUE((item && item->GetInteger("args.b", &value)));
691     EXPECT_EQ(1415, value);
692   }
693 
694   EXPECT_FIND_("TRACE_COUNTER_WITH_TIMESTAMP1 call");
695   {
696     std::string ph;
697     EXPECT_TRUE((item && item->GetString("ph", &ph)));
698     EXPECT_EQ("C", ph);
699 
700     int value;
701     EXPECT_TRUE((item && item->GetInteger("args.value", &value)));
702     EXPECT_EQ(31415, value);
703 
704     int ts;
705     EXPECT_TRUE((item && item->GetInteger("ts", &ts)));
706     EXPECT_EQ(42, ts);
707   }
708 
709   EXPECT_FIND_("TRACE_COUNTER_WITH_TIMESTAMP2 call");
710   {
711     std::string ph;
712     EXPECT_TRUE((item && item->GetString("ph", &ph)));
713     EXPECT_EQ("C", ph);
714 
715     int value;
716     EXPECT_TRUE((item && item->GetInteger("args.a", &value)));
717     EXPECT_EQ(30000, value);
718 
719     EXPECT_TRUE((item && item->GetInteger("args.b", &value)));
720     EXPECT_EQ(1415, value);
721 
722     int ts;
723     EXPECT_TRUE((item && item->GetInteger("ts", &ts)));
724     EXPECT_EQ(42, ts);
725   }
726 
727   EXPECT_FIND_("TRACE_COUNTER_ID1 call");
728   {
729     std::string id;
730     EXPECT_TRUE((item && item->GetString("id", &id)));
731     EXPECT_EQ("0x319009", id);
732 
733     std::string ph;
734     EXPECT_TRUE((item && item->GetString("ph", &ph)));
735     EXPECT_EQ("C", ph);
736 
737     int value;
738     EXPECT_TRUE((item && item->GetInteger("args.value", &value)));
739     EXPECT_EQ(31415, value);
740   }
741 
742   EXPECT_FIND_("TRACE_COUNTER_ID2 call");
743   {
744     std::string id;
745     EXPECT_TRUE((item && item->GetString("id", &id)));
746     EXPECT_EQ("0x319009", id);
747 
748     std::string ph;
749     EXPECT_TRUE((item && item->GetString("ph", &ph)));
750     EXPECT_EQ("C", ph);
751 
752     int value;
753     EXPECT_TRUE((item && item->GetInteger("args.a", &value)));
754     EXPECT_EQ(30000, value);
755 
756     EXPECT_TRUE((item && item->GetInteger("args.b", &value)));
757     EXPECT_EQ(1415, value);
758   }
759 
760   EXPECT_FIND_("TRACE_EVENT_COPY_BEGIN_WITH_ID_TID_AND_TIMESTAMP0 call");
761   {
762     int val;
763     EXPECT_TRUE((item && item->GetInteger("ts", &val)));
764     EXPECT_EQ(12345, val);
765     EXPECT_TRUE((item && item->GetInteger("tid", &val)));
766     EXPECT_EQ(kThreadId, val);
767     std::string id;
768     EXPECT_TRUE((item && item->GetString("id", &id)));
769     EXPECT_EQ(kAsyncIdStr, id);
770   }
771 
772   EXPECT_FIND_("TRACE_EVENT_COPY_END_WITH_ID_TID_AND_TIMESTAMP0 call");
773   {
774     int val;
775     EXPECT_TRUE((item && item->GetInteger("ts", &val)));
776     EXPECT_EQ(23456, val);
777     EXPECT_TRUE((item && item->GetInteger("tid", &val)));
778     EXPECT_EQ(kThreadId, val);
779     std::string id;
780     EXPECT_TRUE((item && item->GetString("id", &id)));
781     EXPECT_EQ(kAsyncIdStr, id);
782   }
783 
784   EXPECT_FIND_("TRACE_EVENT_BEGIN_WITH_ID_TID_AND_TIMESTAMP0 call");
785   {
786     int val;
787     EXPECT_TRUE((item && item->GetInteger("ts", &val)));
788     EXPECT_EQ(34567, val);
789     EXPECT_TRUE((item && item->GetInteger("tid", &val)));
790     EXPECT_EQ(kThreadId, val);
791     std::string id;
792     EXPECT_TRUE((item && item->GetString("id", &id)));
793     EXPECT_EQ(kAsyncId2Str, id);
794   }
795 
796   EXPECT_FIND_("TRACE_EVENT_ASYNC_STEP_PAST0 call");
797   {
798     EXPECT_SUB_FIND_("id");
799     EXPECT_SUB_FIND_(kAsyncId2Str);
800     EXPECT_SUB_FIND_("step_end1");
801     EXPECT_FIND_("TRACE_EVENT_ASYNC_STEP_PAST1 call");
802     EXPECT_SUB_FIND_("id");
803     EXPECT_SUB_FIND_(kAsyncId2Str);
804     EXPECT_SUB_FIND_("step_end2");
805     EXPECT_SUB_FIND_("name1");
806     EXPECT_SUB_FIND_("value1");
807   }
808 
809   EXPECT_FIND_("TRACE_EVENT_END_WITH_ID_TID_AND_TIMESTAMP0 call");
810   {
811     int val;
812     EXPECT_TRUE((item && item->GetInteger("ts", &val)));
813     EXPECT_EQ(45678, val);
814     EXPECT_TRUE((item && item->GetInteger("tid", &val)));
815     EXPECT_EQ(kThreadId, val);
816     std::string id;
817     EXPECT_TRUE((item && item->GetString("id", &id)));
818     EXPECT_EQ(kAsyncId2Str, id);
819   }
820 
821   EXPECT_FIND_("tracked object 1");
822   {
823     std::string phase;
824     std::string id;
825     std::string snapshot;
826 
827     EXPECT_TRUE((item && item->GetString("ph", &phase)));
828     EXPECT_EQ("N", phase);
829     EXPECT_FALSE((item && item->HasKey("scope")));
830     EXPECT_TRUE((item && item->GetString("id", &id)));
831     EXPECT_EQ("0x42", id);
832 
833     item = FindTraceEntry(trace_parsed, "tracked object 1", item);
834     EXPECT_TRUE(item);
835     EXPECT_TRUE(item && item->GetString("ph", &phase));
836     EXPECT_EQ("O", phase);
837     EXPECT_FALSE((item && item->HasKey("scope")));
838     EXPECT_TRUE(item && item->GetString("id", &id));
839     EXPECT_EQ("0x42", id);
840     EXPECT_TRUE(item && item->GetString("args.snapshot", &snapshot));
841     EXPECT_EQ("hello", snapshot);
842 
843     item = FindTraceEntry(trace_parsed, "tracked object 1", item);
844     EXPECT_TRUE(item);
845     EXPECT_TRUE(item && item->GetString("ph", &phase));
846     EXPECT_EQ("D", phase);
847     EXPECT_FALSE((item && item->HasKey("scope")));
848     EXPECT_TRUE(item && item->GetString("id", &id));
849     EXPECT_EQ("0x42", id);
850   }
851 
852   EXPECT_FIND_("tracked object 2");
853   {
854     std::string phase;
855     std::string id;
856     std::string snapshot;
857 
858     EXPECT_TRUE(item && item->GetString("ph", &phase));
859     EXPECT_EQ("N", phase);
860     EXPECT_TRUE(item && item->GetString("id", &id));
861     EXPECT_EQ("0x2128506", id);
862 
863     item = FindTraceEntry(trace_parsed, "tracked object 2", item);
864     EXPECT_TRUE(item);
865     EXPECT_TRUE(item && item->GetString("ph", &phase));
866     EXPECT_EQ("O", phase);
867     EXPECT_TRUE(item && item->GetString("id", &id));
868     EXPECT_EQ("0x2128506", id);
869     EXPECT_TRUE(item && item->GetString("args.snapshot", &snapshot));
870     EXPECT_EQ("world", snapshot);
871 
872     item = FindTraceEntry(trace_parsed, "tracked object 2", item);
873     EXPECT_TRUE(item);
874     EXPECT_TRUE(item && item->GetString("ph", &phase));
875     EXPECT_EQ("D", phase);
876     EXPECT_TRUE(item && item->GetString("id", &id));
877     EXPECT_EQ("0x2128506", id);
878   }
879 
880   EXPECT_FIND_("tracked object 3");
881   {
882     std::string phase;
883     std::string scope;
884     std::string id;
885     std::string snapshot;
886 
887     EXPECT_TRUE((item && item->GetString("ph", &phase)));
888     EXPECT_EQ("N", phase);
889     EXPECT_TRUE((item && item->GetString("scope", &scope)));
890     EXPECT_EQ("scope", scope);
891     EXPECT_TRUE((item && item->GetString("id", &id)));
892     EXPECT_EQ("0x42", id);
893 
894     item = FindTraceEntry(trace_parsed, "tracked object 3", item);
895     EXPECT_TRUE(item);
896     EXPECT_TRUE(item && item->GetString("ph", &phase));
897     EXPECT_EQ("O", phase);
898     EXPECT_TRUE((item && item->GetString("scope", &scope)));
899     EXPECT_EQ("scope", scope);
900     EXPECT_TRUE(item && item->GetString("id", &id));
901     EXPECT_EQ("0x42", id);
902     EXPECT_TRUE(item && item->GetString("args.snapshot", &snapshot));
903     EXPECT_EQ("hello", snapshot);
904 
905     item = FindTraceEntry(trace_parsed, "tracked object 3", item);
906     EXPECT_TRUE(item);
907     EXPECT_TRUE(item && item->GetString("ph", &phase));
908     EXPECT_EQ("D", phase);
909     EXPECT_TRUE((item && item->GetString("scope", &scope)));
910     EXPECT_EQ("scope", scope);
911     EXPECT_TRUE(item && item->GetString("id", &id));
912     EXPECT_EQ("0x42", id);
913   }
914 
915   EXPECT_FIND_(kControlCharacters);
916   EXPECT_SUB_FIND_(kControlCharacters);
917 
918   EXPECT_FIND_("TRACE_EVENT_ENTER_CONTEXT call");
919   {
920     std::string ph;
921     EXPECT_TRUE((item && item->GetString("ph", &ph)));
922     EXPECT_EQ("(", ph);
923 
924     std::string scope;
925     std::string id;
926     EXPECT_TRUE((item && item->GetString("scope", &scope)));
927     EXPECT_EQ("scope", scope);
928     EXPECT_TRUE((item && item->GetString("id", &id)));
929     EXPECT_EQ("0x20151021", id);
930   }
931 
932   EXPECT_FIND_("TRACE_EVENT_LEAVE_CONTEXT call");
933   {
934     std::string ph;
935     EXPECT_TRUE((item && item->GetString("ph", &ph)));
936     EXPECT_EQ(")", ph);
937 
938     std::string scope;
939     std::string id;
940     EXPECT_TRUE((item && item->GetString("scope", &scope)));
941     EXPECT_EQ("scope", scope);
942     EXPECT_TRUE((item && item->GetString("id", &id)));
943     EXPECT_EQ("0x20151021", id);
944   }
945 
946   std::vector<const DictionaryValue*> scoped_context_calls =
947       FindTraceEntries(trace_parsed, "TRACE_EVENT_SCOPED_CONTEXT call");
948   EXPECT_EQ(2u, scoped_context_calls.size());
949   {
950     item = scoped_context_calls[0];
951     std::string ph;
952     EXPECT_TRUE((item && item->GetString("ph", &ph)));
953     EXPECT_EQ("(", ph);
954 
955     std::string id;
956     EXPECT_FALSE((item && item->HasKey("scope")));
957     EXPECT_TRUE((item && item->GetString("id", &id)));
958     EXPECT_EQ("0x20151021", id);
959   }
960 
961   {
962     item = scoped_context_calls[1];
963     std::string ph;
964     EXPECT_TRUE((item && item->GetString("ph", &ph)));
965     EXPECT_EQ(")", ph);
966 
967     std::string id;
968     EXPECT_FALSE((item && item->HasKey("scope")));
969     EXPECT_TRUE((item && item->GetString("id", &id)));
970     EXPECT_EQ("0x20151021", id);
971   }
972 
973   EXPECT_FIND_("TRACE_LINK_IDS simple call");
974   {
975     std::string ph;
976     EXPECT_TRUE((item && item->GetString("ph", &ph)));
977     EXPECT_EQ("=", ph);
978 
979     EXPECT_FALSE((item && item->HasKey("scope")));
980     std::string id1;
981     EXPECT_TRUE((item && item->GetString("id", &id1)));
982     EXPECT_EQ("0x1000", id1);
983 
984     EXPECT_FALSE((item && item->HasKey("args.linked_id.scope")));
985     std::string id2;
986     EXPECT_TRUE((item && item->GetString("args.linked_id.id", &id2)));
987     EXPECT_EQ("0x2000", id2);
988   }
989 
990   EXPECT_FIND_("TRACE_LINK_IDS scoped call");
991   {
992     std::string ph;
993     EXPECT_TRUE((item && item->GetString("ph", &ph)));
994     EXPECT_EQ("=", ph);
995 
996     std::string scope1;
997     EXPECT_TRUE((item && item->GetString("scope", &scope1)));
998     EXPECT_EQ("scope 1", scope1);
999     std::string id1;
1000     EXPECT_TRUE((item && item->GetString("id", &id1)));
1001     EXPECT_EQ("0x1000", id1);
1002 
1003     std::string scope2;
1004     EXPECT_TRUE((item && item->GetString("args.linked_id.scope", &scope2)));
1005     EXPECT_EQ("scope 2", scope2);
1006     std::string id2;
1007     EXPECT_TRUE((item && item->GetString("args.linked_id.id", &id2)));
1008     EXPECT_EQ("0x2000", id2);
1009   }
1010 
1011   EXPECT_FIND_("TRACE_LINK_IDS to a local ID");
1012   {
1013     std::string ph;
1014     EXPECT_TRUE((item && item->GetString("ph", &ph)));
1015     EXPECT_EQ("=", ph);
1016 
1017     EXPECT_FALSE((item && item->HasKey("scope")));
1018     std::string id1;
1019     EXPECT_TRUE((item && item->GetString("id", &id1)));
1020     EXPECT_EQ("0x1000", id1);
1021 
1022     EXPECT_FALSE((item && item->HasKey("args.linked_id.scope")));
1023     std::string id2;
1024     EXPECT_TRUE((item && item->GetString("args.linked_id.id2.local", &id2)));
1025     EXPECT_EQ("0x2000", id2);
1026   }
1027 
1028   EXPECT_FIND_("TRACE_LINK_IDS to a global ID");
1029   {
1030     std::string ph;
1031     EXPECT_TRUE((item && item->GetString("ph", &ph)));
1032     EXPECT_EQ("=", ph);
1033 
1034     EXPECT_FALSE((item && item->HasKey("scope")));
1035     std::string id1;
1036     EXPECT_TRUE((item && item->GetString("id", &id1)));
1037     EXPECT_EQ("0x1000", id1);
1038 
1039     EXPECT_FALSE((item && item->HasKey("args.linked_id.scope")));
1040     std::string id2;
1041     EXPECT_TRUE((item && item->GetString("args.linked_id.id2.global", &id2)));
1042     EXPECT_EQ("0x2000", id2);
1043   }
1044 
1045   EXPECT_FIND_("TRACE_LINK_IDS to a composite ID");
1046   {
1047     std::string ph;
1048     EXPECT_TRUE((item && item->GetString("ph", &ph)));
1049     EXPECT_EQ("=", ph);
1050 
1051     EXPECT_FALSE(item->HasKey("scope"));
1052     std::string id1;
1053     EXPECT_TRUE(item->GetString("id", &id1));
1054     EXPECT_EQ("0x1000", id1);
1055 
1056     std::string scope;
1057     EXPECT_TRUE(item->GetString("args.linked_id.scope", &scope));
1058     EXPECT_EQ("scope 1", scope);
1059     std::string id2;
1060     EXPECT_TRUE(item->GetString("args.linked_id.id", &id2));
1061     EXPECT_EQ(id2, "0x2000/0x3000");
1062   }
1063 
1064   EXPECT_FIND_("async default process scope");
1065   {
1066     std::string ph;
1067     EXPECT_TRUE((item && item->GetString("ph", &ph)));
1068     EXPECT_EQ("S", ph);
1069 
1070     std::string id;
1071     EXPECT_TRUE((item && item->GetString("id", &id)));
1072     EXPECT_EQ("0x1000", id);
1073   }
1074 
1075   EXPECT_FIND_("async local id");
1076   {
1077     std::string ph;
1078     EXPECT_TRUE((item && item->GetString("ph", &ph)));
1079     EXPECT_EQ("S", ph);
1080 
1081     std::string id;
1082     EXPECT_TRUE((item && item->GetString("id2.local", &id)));
1083     EXPECT_EQ("0x2000", id);
1084   }
1085 
1086   EXPECT_FIND_("async global id");
1087   {
1088     std::string ph;
1089     EXPECT_TRUE((item && item->GetString("ph", &ph)));
1090     EXPECT_EQ("S", ph);
1091 
1092     std::string id;
1093     EXPECT_TRUE((item && item->GetString("id2.global", &id)));
1094     EXPECT_EQ("0x3000", id);
1095   }
1096 
1097   EXPECT_FIND_("async global id with scope string");
1098   {
1099     std::string ph;
1100     EXPECT_TRUE((item && item->GetString("ph", &ph)));
1101     EXPECT_EQ("S", ph);
1102 
1103     std::string id;
1104     EXPECT_TRUE((item && item->GetString("id2.global", &id)));
1105     EXPECT_EQ("0x4000", id);
1106     std::string scope;
1107     EXPECT_TRUE((item && item->GetString("scope", &scope)));
1108     EXPECT_EQ("scope string", scope);
1109   }
1110 }
1111 
TraceManyInstantEvents(int thread_id,int num_events,WaitableEvent * task_complete_event)1112 void TraceManyInstantEvents(int thread_id, int num_events,
1113                             WaitableEvent* task_complete_event) {
1114   for (int i = 0; i < num_events; i++) {
1115     TRACE_EVENT_INSTANT2("all", "multi thread event",
1116                          TRACE_EVENT_SCOPE_THREAD,
1117                          "thread", thread_id,
1118                          "event", i);
1119   }
1120 
1121   if (task_complete_event)
1122     task_complete_event->Signal();
1123 }
1124 
ValidateInstantEventPresentOnEveryThread(const ListValue & trace_parsed,int num_threads,int num_events)1125 void ValidateInstantEventPresentOnEveryThread(const ListValue& trace_parsed,
1126                                               int num_threads,
1127                                               int num_events) {
1128   std::map<int, std::map<int, bool> > results;
1129 
1130   size_t trace_parsed_count = trace_parsed.GetSize();
1131   for (size_t i = 0; i < trace_parsed_count; i++) {
1132     const Value* value = nullptr;
1133     trace_parsed.Get(i, &value);
1134     if (!value || value->type() != Value::Type::DICTIONARY)
1135       continue;
1136     const DictionaryValue* dict = static_cast<const DictionaryValue*>(value);
1137     std::string name;
1138     dict->GetString("name", &name);
1139     if (name != "multi thread event")
1140       continue;
1141 
1142     int thread = 0;
1143     int event = 0;
1144     EXPECT_TRUE(dict->GetInteger("args.thread", &thread));
1145     EXPECT_TRUE(dict->GetInteger("args.event", &event));
1146     results[thread][event] = true;
1147   }
1148 
1149   EXPECT_FALSE(results[-1][-1]);
1150   for (int thread = 0; thread < num_threads; thread++) {
1151     for (int event = 0; event < num_events; event++) {
1152       EXPECT_TRUE(results[thread][event]);
1153     }
1154   }
1155 }
1156 
CheckTraceDefaultCategoryFilters(const TraceLog & trace_log)1157 void CheckTraceDefaultCategoryFilters(const TraceLog& trace_log) {
1158   // Default enables all category filters except the disabled-by-default-* ones.
1159   EXPECT_TRUE(*trace_log.GetCategoryGroupEnabled("foo"));
1160   EXPECT_TRUE(*trace_log.GetCategoryGroupEnabled("bar"));
1161   EXPECT_TRUE(*trace_log.GetCategoryGroupEnabled("foo,bar"));
1162   EXPECT_TRUE(*trace_log.GetCategoryGroupEnabled(
1163         "foo,disabled-by-default-foo"));
1164   EXPECT_FALSE(*trace_log.GetCategoryGroupEnabled(
1165         "disabled-by-default-foo,disabled-by-default-bar"));
1166 }
1167 
1168 }  // namespace
1169 
1170 // Simple Test for emitting data and validating it was received.
TEST_F(TraceEventTestFixture,DataCaptured)1171 TEST_F(TraceEventTestFixture, DataCaptured) {
1172   TraceLog::GetInstance()->SetEnabled(TraceConfig(kRecordAllCategoryFilter, ""),
1173                                       TraceLog::RECORDING_MODE);
1174 
1175   TraceWithAllMacroVariants(nullptr);
1176 
1177   EndTraceAndFlush();
1178 
1179   ValidateAllTraceMacrosCreatedData(trace_parsed_);
1180 }
1181 
1182 // Emit some events and validate that only empty strings are received
1183 // if we tell Flush() to discard events.
TEST_F(TraceEventTestFixture,DataDiscarded)1184 TEST_F(TraceEventTestFixture, DataDiscarded) {
1185   TraceLog::GetInstance()->SetEnabled(TraceConfig(kRecordAllCategoryFilter, ""),
1186                                       TraceLog::RECORDING_MODE);
1187 
1188   TraceWithAllMacroVariants(nullptr);
1189 
1190   CancelTrace();
1191 
1192   EXPECT_TRUE(trace_parsed_.empty());
1193 }
1194 
1195 class MockEnabledStateChangedObserver :
1196       public TraceLog::EnabledStateObserver {
1197  public:
1198   MOCK_METHOD0(OnTraceLogEnabled, void());
1199   MOCK_METHOD0(OnTraceLogDisabled, void());
1200 };
1201 
TEST_F(TraceEventTestFixture,EnabledObserverFiresOnEnable)1202 TEST_F(TraceEventTestFixture, EnabledObserverFiresOnEnable) {
1203   MockEnabledStateChangedObserver observer;
1204   TraceLog::GetInstance()->AddEnabledStateObserver(&observer);
1205 
1206   EXPECT_CALL(observer, OnTraceLogEnabled())
1207       .Times(1);
1208   TraceLog::GetInstance()->SetEnabled(TraceConfig(kRecordAllCategoryFilter, ""),
1209                                       TraceLog::RECORDING_MODE);
1210   testing::Mock::VerifyAndClear(&observer);
1211   EXPECT_TRUE(TraceLog::GetInstance()->IsEnabled());
1212 
1213   // Cleanup.
1214   TraceLog::GetInstance()->RemoveEnabledStateObserver(&observer);
1215   TraceLog::GetInstance()->SetDisabled();
1216 }
1217 
TEST_F(TraceEventTestFixture,EnabledObserverDoesntFireOnSecondEnable)1218 TEST_F(TraceEventTestFixture, EnabledObserverDoesntFireOnSecondEnable) {
1219   TraceLog::GetInstance()->SetEnabled(TraceConfig(kRecordAllCategoryFilter, ""),
1220                                       TraceLog::RECORDING_MODE);
1221 
1222   testing::StrictMock<MockEnabledStateChangedObserver> observer;
1223   TraceLog::GetInstance()->AddEnabledStateObserver(&observer);
1224 
1225   EXPECT_CALL(observer, OnTraceLogEnabled())
1226       .Times(0);
1227   EXPECT_CALL(observer, OnTraceLogDisabled())
1228       .Times(0);
1229   TraceLog::GetInstance()->SetEnabled(TraceConfig(kRecordAllCategoryFilter, ""),
1230                                       TraceLog::RECORDING_MODE);
1231   testing::Mock::VerifyAndClear(&observer);
1232   EXPECT_TRUE(TraceLog::GetInstance()->IsEnabled());
1233 
1234   // Cleanup.
1235   TraceLog::GetInstance()->RemoveEnabledStateObserver(&observer);
1236   TraceLog::GetInstance()->SetDisabled();
1237   TraceLog::GetInstance()->SetDisabled();
1238 }
1239 
TEST_F(TraceEventTestFixture,EnabledObserverFiresOnFirstDisable)1240 TEST_F(TraceEventTestFixture, EnabledObserverFiresOnFirstDisable) {
1241   TraceConfig tc_inc_all("*", "");
1242   TraceLog::GetInstance()->SetEnabled(tc_inc_all, TraceLog::RECORDING_MODE);
1243   TraceLog::GetInstance()->SetEnabled(tc_inc_all, TraceLog::RECORDING_MODE);
1244 
1245   testing::StrictMock<MockEnabledStateChangedObserver> observer;
1246   TraceLog::GetInstance()->AddEnabledStateObserver(&observer);
1247 
1248   EXPECT_CALL(observer, OnTraceLogEnabled())
1249       .Times(0);
1250   EXPECT_CALL(observer, OnTraceLogDisabled())
1251       .Times(1);
1252   TraceLog::GetInstance()->SetDisabled();
1253   testing::Mock::VerifyAndClear(&observer);
1254 
1255   // Cleanup.
1256   TraceLog::GetInstance()->RemoveEnabledStateObserver(&observer);
1257   TraceLog::GetInstance()->SetDisabled();
1258 }
1259 
TEST_F(TraceEventTestFixture,EnabledObserverFiresOnDisable)1260 TEST_F(TraceEventTestFixture, EnabledObserverFiresOnDisable) {
1261   TraceLog::GetInstance()->SetEnabled(TraceConfig(kRecordAllCategoryFilter, ""),
1262                                       TraceLog::RECORDING_MODE);
1263 
1264   MockEnabledStateChangedObserver observer;
1265   TraceLog::GetInstance()->AddEnabledStateObserver(&observer);
1266 
1267   EXPECT_CALL(observer, OnTraceLogDisabled())
1268       .Times(1);
1269   TraceLog::GetInstance()->SetDisabled();
1270   testing::Mock::VerifyAndClear(&observer);
1271 
1272   // Cleanup.
1273   TraceLog::GetInstance()->RemoveEnabledStateObserver(&observer);
1274 }
1275 
1276 // Tests the IsEnabled() state of TraceLog changes before callbacks.
1277 class AfterStateChangeEnabledStateObserver
1278     : public TraceLog::EnabledStateObserver {
1279  public:
1280   AfterStateChangeEnabledStateObserver() = default;
1281   ~AfterStateChangeEnabledStateObserver() override = default;
1282 
1283   // TraceLog::EnabledStateObserver overrides:
OnTraceLogEnabled()1284   void OnTraceLogEnabled() override {
1285     EXPECT_TRUE(TraceLog::GetInstance()->IsEnabled());
1286   }
1287 
OnTraceLogDisabled()1288   void OnTraceLogDisabled() override {
1289     EXPECT_FALSE(TraceLog::GetInstance()->IsEnabled());
1290   }
1291 };
1292 
TEST_F(TraceEventTestFixture,ObserversFireAfterStateChange)1293 TEST_F(TraceEventTestFixture, ObserversFireAfterStateChange) {
1294   AfterStateChangeEnabledStateObserver observer;
1295   TraceLog::GetInstance()->AddEnabledStateObserver(&observer);
1296 
1297   TraceLog::GetInstance()->SetEnabled(TraceConfig(kRecordAllCategoryFilter, ""),
1298                                       TraceLog::RECORDING_MODE);
1299   EXPECT_TRUE(TraceLog::GetInstance()->IsEnabled());
1300 
1301   TraceLog::GetInstance()->SetDisabled();
1302   EXPECT_FALSE(TraceLog::GetInstance()->IsEnabled());
1303 
1304   TraceLog::GetInstance()->RemoveEnabledStateObserver(&observer);
1305 }
1306 
1307 // Tests that a state observer can remove itself during a callback.
1308 class SelfRemovingEnabledStateObserver
1309     : public TraceLog::EnabledStateObserver {
1310  public:
1311   SelfRemovingEnabledStateObserver() = default;
1312   ~SelfRemovingEnabledStateObserver() override = default;
1313 
1314   // TraceLog::EnabledStateObserver overrides:
OnTraceLogEnabled()1315   void OnTraceLogEnabled() override {}
1316 
OnTraceLogDisabled()1317   void OnTraceLogDisabled() override {
1318     TraceLog::GetInstance()->RemoveEnabledStateObserver(this);
1319   }
1320 };
1321 
TEST_F(TraceEventTestFixture,SelfRemovingObserver)1322 TEST_F(TraceEventTestFixture, SelfRemovingObserver) {
1323   ASSERT_EQ(0u, TraceLog::GetInstance()->GetObserverCountForTest());
1324 
1325   SelfRemovingEnabledStateObserver observer;
1326   TraceLog::GetInstance()->AddEnabledStateObserver(&observer);
1327   EXPECT_EQ(1u, TraceLog::GetInstance()->GetObserverCountForTest());
1328 
1329   TraceLog::GetInstance()->SetEnabled(TraceConfig(kRecordAllCategoryFilter, ""),
1330                                       TraceLog::RECORDING_MODE);
1331   TraceLog::GetInstance()->SetDisabled();
1332   // The observer removed itself on disable.
1333   EXPECT_EQ(0u, TraceLog::GetInstance()->GetObserverCountForTest());
1334 }
1335 
IsNewTrace()1336 bool IsNewTrace() {
1337   bool is_new_trace;
1338   TRACE_EVENT_IS_NEW_TRACE(&is_new_trace);
1339   return is_new_trace;
1340 }
1341 
TEST_F(TraceEventTestFixture,NewTraceRecording)1342 TEST_F(TraceEventTestFixture, NewTraceRecording) {
1343   ASSERT_FALSE(IsNewTrace());
1344   TraceLog::GetInstance()->SetEnabled(TraceConfig(kRecordAllCategoryFilter, ""),
1345                                       TraceLog::RECORDING_MODE);
1346   // First call to IsNewTrace() should succeed. But, the second shouldn't.
1347   ASSERT_TRUE(IsNewTrace());
1348   ASSERT_FALSE(IsNewTrace());
1349   EndTraceAndFlush();
1350 
1351   // IsNewTrace() should definitely be false now.
1352   ASSERT_FALSE(IsNewTrace());
1353 
1354   // Start another trace. IsNewTrace() should become true again, briefly, as
1355   // before.
1356   TraceLog::GetInstance()->SetEnabled(TraceConfig(kRecordAllCategoryFilter, ""),
1357                                       TraceLog::RECORDING_MODE);
1358   ASSERT_TRUE(IsNewTrace());
1359   ASSERT_FALSE(IsNewTrace());
1360 
1361   // Cleanup.
1362   EndTraceAndFlush();
1363 }
1364 
TEST_F(TraceEventTestFixture,TestTraceFlush)1365 TEST_F(TraceEventTestFixture, TestTraceFlush) {
1366   size_t min_traces = 1;
1367   size_t max_traces = 1;
1368   do {
1369     max_traces *= 2;
1370     TraceLog::GetInstance()->SetEnabled(TraceConfig(),
1371                                         TraceLog::RECORDING_MODE);
1372     for (size_t i = 0; i < max_traces; i++) {
1373       TRACE_EVENT_INSTANT0("x", "y", TRACE_EVENT_SCOPE_THREAD);
1374     }
1375     EndTraceAndFlush();
1376   } while (num_flush_callbacks_ < 2);
1377 
1378   while (min_traces + 50 <  max_traces) {
1379     size_t traces = (min_traces + max_traces) / 2;
1380     TraceLog::GetInstance()->SetEnabled(TraceConfig(),
1381                                         TraceLog::RECORDING_MODE);
1382     for (size_t i = 0; i < traces; i++) {
1383       TRACE_EVENT_INSTANT0("x", "y", TRACE_EVENT_SCOPE_THREAD);
1384     }
1385     EndTraceAndFlush();
1386     if (num_flush_callbacks_ < 2) {
1387       min_traces = traces - 10;
1388     } else {
1389       max_traces = traces + 10;
1390     }
1391   }
1392 
1393   for (size_t traces = min_traces; traces < max_traces; traces++) {
1394     TraceLog::GetInstance()->SetEnabled(TraceConfig(),
1395                                         TraceLog::RECORDING_MODE);
1396     for (size_t i = 0; i < traces; i++) {
1397       TRACE_EVENT_INSTANT0("x", "y", TRACE_EVENT_SCOPE_THREAD);
1398     }
1399     EndTraceAndFlush();
1400   }
1401 }
1402 
TEST_F(TraceEventTestFixture,AddMetadataEvent)1403 TEST_F(TraceEventTestFixture, AddMetadataEvent) {
1404   int num_calls = 0;
1405 
1406   class Convertable : public ConvertableToTraceFormat {
1407    public:
1408     explicit Convertable(int* num_calls) : num_calls_(num_calls) {}
1409     ~Convertable() override = default;
1410     void AppendAsTraceFormat(std::string* out) const override {
1411       (*num_calls_)++;
1412       out->append("\"metadata_value\"");
1413     }
1414 
1415    private:
1416     int* num_calls_;
1417   };
1418 
1419   std::unique_ptr<ConvertableToTraceFormat> conv1(new Convertable(&num_calls));
1420   std::unique_ptr<Convertable> conv2(new Convertable(&num_calls));
1421 
1422   BeginTrace();
1423   TRACE_EVENT_API_ADD_METADATA_EVENT(
1424       TraceLog::GetCategoryGroupEnabled("__metadata"), "metadata_event_1",
1425       "metadata_arg_name", std::move(conv1));
1426   TRACE_EVENT_API_ADD_METADATA_EVENT(
1427       TraceLog::GetCategoryGroupEnabled("__metadata"), "metadata_event_2",
1428       "metadata_arg_name", std::move(conv2));
1429   // |AppendAsTraceFormat| should only be called on flush, not when the event
1430   // is added.
1431   ASSERT_EQ(0, num_calls);
1432   EndTraceAndFlush();
1433   ASSERT_EQ(2, num_calls);
1434   EXPECT_TRUE(FindNamePhaseKeyValue("metadata_event_1", "M",
1435                                     "metadata_arg_name", "metadata_value"));
1436   EXPECT_TRUE(FindNamePhaseKeyValue("metadata_event_2", "M",
1437                                     "metadata_arg_name", "metadata_value"));
1438 
1439   // The metadata event should only be adde to the current trace. In this new
1440   // trace, the event should not appear.
1441   BeginTrace();
1442   EndTraceAndFlush();
1443   ASSERT_EQ(2, num_calls);
1444 }
1445 
1446 // Test that categories work.
TEST_F(TraceEventTestFixture,Categories)1447 TEST_F(TraceEventTestFixture, Categories) {
1448   // Test that categories that are used can be retrieved whether trace was
1449   // enabled or disabled when the trace event was encountered.
1450   TRACE_EVENT_INSTANT0("c1", "name", TRACE_EVENT_SCOPE_THREAD);
1451   TRACE_EVENT_INSTANT0("c2", "name", TRACE_EVENT_SCOPE_THREAD);
1452   BeginTrace();
1453   TRACE_EVENT_INSTANT0("c3", "name", TRACE_EVENT_SCOPE_THREAD);
1454   TRACE_EVENT_INSTANT0("c4", "name", TRACE_EVENT_SCOPE_THREAD);
1455   // Category groups containing more than one category.
1456   TRACE_EVENT_INSTANT0("c5,c6", "name", TRACE_EVENT_SCOPE_THREAD);
1457   TRACE_EVENT_INSTANT0("c7,c8", "name", TRACE_EVENT_SCOPE_THREAD);
1458   TRACE_EVENT_INSTANT0(TRACE_DISABLED_BY_DEFAULT("c9"), "name",
1459                        TRACE_EVENT_SCOPE_THREAD);
1460 
1461   EndTraceAndFlush();
1462   std::vector<std::string> cat_groups;
1463   TraceLog::GetInstance()->GetKnownCategoryGroups(&cat_groups);
1464   EXPECT_TRUE(ContainsValue(cat_groups, "c1"));
1465   EXPECT_TRUE(ContainsValue(cat_groups, "c2"));
1466   EXPECT_TRUE(ContainsValue(cat_groups, "c3"));
1467   EXPECT_TRUE(ContainsValue(cat_groups, "c4"));
1468   EXPECT_TRUE(ContainsValue(cat_groups, "c5,c6"));
1469   EXPECT_TRUE(ContainsValue(cat_groups, "c7,c8"));
1470   EXPECT_TRUE(ContainsValue(cat_groups, "disabled-by-default-c9"));
1471   // Make sure metadata isn't returned.
1472   EXPECT_FALSE(ContainsValue(cat_groups, "__metadata"));
1473 
1474   const std::vector<std::string> empty_categories;
1475   std::vector<std::string> included_categories;
1476   std::vector<std::string> excluded_categories;
1477 
1478   // Test that category filtering works.
1479 
1480   // Include nonexistent category -> no events
1481   Clear();
1482   included_categories.clear();
1483   TraceLog::GetInstance()->SetEnabled(TraceConfig("not_found823564786", ""),
1484                                       TraceLog::RECORDING_MODE);
1485   TRACE_EVENT_INSTANT0("cat1", "name", TRACE_EVENT_SCOPE_THREAD);
1486   TRACE_EVENT_INSTANT0("cat2", "name", TRACE_EVENT_SCOPE_THREAD);
1487   EndTraceAndFlush();
1488   DropTracedMetadataRecords();
1489   EXPECT_TRUE(trace_parsed_.empty());
1490 
1491   // Include existent category -> only events of that category
1492   Clear();
1493   included_categories.clear();
1494   TraceLog::GetInstance()->SetEnabled(TraceConfig("inc", ""),
1495                                       TraceLog::RECORDING_MODE);
1496   TRACE_EVENT_INSTANT0("inc", "name", TRACE_EVENT_SCOPE_THREAD);
1497   TRACE_EVENT_INSTANT0("inc2", "name", TRACE_EVENT_SCOPE_THREAD);
1498   EndTraceAndFlush();
1499   DropTracedMetadataRecords();
1500   EXPECT_TRUE(FindMatchingValue("cat", "inc"));
1501   EXPECT_FALSE(FindNonMatchingValue("cat", "inc"));
1502 
1503   // Include existent wildcard -> all categories matching wildcard
1504   Clear();
1505   included_categories.clear();
1506   TraceLog::GetInstance()->SetEnabled(
1507       TraceConfig("inc_wildcard_*,inc_wildchar_?_end", ""),
1508       TraceLog::RECORDING_MODE);
1509   TRACE_EVENT_INSTANT0("inc_wildcard_abc", "included",
1510       TRACE_EVENT_SCOPE_THREAD);
1511   TRACE_EVENT_INSTANT0("inc_wildcard_", "included", TRACE_EVENT_SCOPE_THREAD);
1512   TRACE_EVENT_INSTANT0("inc_wildchar_x_end", "included",
1513       TRACE_EVENT_SCOPE_THREAD);
1514   TRACE_EVENT_INSTANT0("inc_wildchar_bla_end", "not_inc",
1515       TRACE_EVENT_SCOPE_THREAD);
1516   TRACE_EVENT_INSTANT0("cat1", "not_inc", TRACE_EVENT_SCOPE_THREAD);
1517   TRACE_EVENT_INSTANT0("cat2", "not_inc", TRACE_EVENT_SCOPE_THREAD);
1518   TRACE_EVENT_INSTANT0("inc_wildcard_category,other_category", "included",
1519       TRACE_EVENT_SCOPE_THREAD);
1520   TRACE_EVENT_INSTANT0(
1521       "non_included_category,inc_wildcard_category", "included",
1522       TRACE_EVENT_SCOPE_THREAD);
1523   EndTraceAndFlush();
1524   EXPECT_TRUE(FindMatchingValue("cat", "inc_wildcard_abc"));
1525   EXPECT_TRUE(FindMatchingValue("cat", "inc_wildcard_"));
1526   EXPECT_TRUE(FindMatchingValue("cat", "inc_wildchar_x_end"));
1527   EXPECT_FALSE(FindMatchingValue("name", "not_inc"));
1528   EXPECT_TRUE(FindMatchingValue("cat", "inc_wildcard_category,other_category"));
1529   EXPECT_TRUE(FindMatchingValue("cat",
1530                                 "non_included_category,inc_wildcard_category"));
1531 
1532   included_categories.clear();
1533 
1534   // Exclude nonexistent category -> all events
1535   Clear();
1536   TraceLog::GetInstance()->SetEnabled(TraceConfig("-not_found823564786", ""),
1537                                       TraceLog::RECORDING_MODE);
1538   TRACE_EVENT_INSTANT0("cat1", "name", TRACE_EVENT_SCOPE_THREAD);
1539   TRACE_EVENT_INSTANT0("cat2", "name", TRACE_EVENT_SCOPE_THREAD);
1540   TRACE_EVENT_INSTANT0("category1,category2", "name", TRACE_EVENT_SCOPE_THREAD);
1541   EndTraceAndFlush();
1542   EXPECT_TRUE(FindMatchingValue("cat", "cat1"));
1543   EXPECT_TRUE(FindMatchingValue("cat", "cat2"));
1544   EXPECT_TRUE(FindMatchingValue("cat", "category1,category2"));
1545 
1546   // Exclude existent category -> only events of other categories
1547   Clear();
1548   TraceLog::GetInstance()->SetEnabled(TraceConfig("-inc", ""),
1549                                       TraceLog::RECORDING_MODE);
1550   TRACE_EVENT_INSTANT0("inc", "name", TRACE_EVENT_SCOPE_THREAD);
1551   TRACE_EVENT_INSTANT0("inc2", "name", TRACE_EVENT_SCOPE_THREAD);
1552   TRACE_EVENT_INSTANT0("inc2,inc", "name", TRACE_EVENT_SCOPE_THREAD);
1553   TRACE_EVENT_INSTANT0("inc,inc2", "name", TRACE_EVENT_SCOPE_THREAD);
1554   EndTraceAndFlush();
1555   EXPECT_TRUE(FindMatchingValue("cat", "inc2"));
1556   EXPECT_FALSE(FindMatchingValue("cat", "inc"));
1557   EXPECT_TRUE(FindMatchingValue("cat", "inc2,inc"));
1558   EXPECT_TRUE(FindMatchingValue("cat", "inc,inc2"));
1559 
1560   // Exclude existent wildcard -> all categories not matching wildcard
1561   Clear();
1562   TraceLog::GetInstance()->SetEnabled(
1563       TraceConfig("-inc_wildcard_*,-inc_wildchar_?_end", ""),
1564       TraceLog::RECORDING_MODE);
1565   TRACE_EVENT_INSTANT0("inc_wildcard_abc", "not_inc",
1566       TRACE_EVENT_SCOPE_THREAD);
1567   TRACE_EVENT_INSTANT0("inc_wildcard_", "not_inc",
1568       TRACE_EVENT_SCOPE_THREAD);
1569   TRACE_EVENT_INSTANT0("inc_wildchar_x_end", "not_inc",
1570       TRACE_EVENT_SCOPE_THREAD);
1571   TRACE_EVENT_INSTANT0("inc_wildchar_bla_end", "included",
1572       TRACE_EVENT_SCOPE_THREAD);
1573   TRACE_EVENT_INSTANT0("cat1", "included", TRACE_EVENT_SCOPE_THREAD);
1574   TRACE_EVENT_INSTANT0("cat2", "included", TRACE_EVENT_SCOPE_THREAD);
1575   EndTraceAndFlush();
1576   EXPECT_TRUE(FindMatchingValue("cat", "inc_wildchar_bla_end"));
1577   EXPECT_TRUE(FindMatchingValue("cat", "cat1"));
1578   EXPECT_TRUE(FindMatchingValue("cat", "cat2"));
1579   EXPECT_FALSE(FindMatchingValue("name", "not_inc"));
1580 }
1581 
1582 
1583 // Test ASYNC_BEGIN/END events
TEST_F(TraceEventTestFixture,AsyncBeginEndEvents)1584 TEST_F(TraceEventTestFixture, AsyncBeginEndEvents) {
1585   BeginTrace();
1586 
1587   unsigned long long id = 0xfeedbeeffeedbeefull;
1588   TRACE_EVENT_ASYNC_BEGIN0("cat", "name1", id);
1589   TRACE_EVENT_ASYNC_STEP_INTO0("cat", "name1", id, "step1");
1590   TRACE_EVENT_ASYNC_END0("cat", "name1", id);
1591   TRACE_EVENT_BEGIN0("cat", "name2");
1592   TRACE_EVENT_ASYNC_BEGIN0("cat", "name3", 0);
1593   TRACE_EVENT_ASYNC_STEP_PAST0("cat", "name3", 0, "step2");
1594 
1595   EndTraceAndFlush();
1596 
1597   EXPECT_TRUE(FindNamePhase("name1", "S"));
1598   EXPECT_TRUE(FindNamePhase("name1", "T"));
1599   EXPECT_TRUE(FindNamePhase("name1", "F"));
1600 
1601   std::string id_str;
1602   StringAppendF(&id_str, "0x%llx", id);
1603 
1604   EXPECT_TRUE(FindNamePhaseKeyValue("name1", "S", "id", id_str.c_str()));
1605   EXPECT_TRUE(FindNamePhaseKeyValue("name1", "T", "id", id_str.c_str()));
1606   EXPECT_TRUE(FindNamePhaseKeyValue("name1", "F", "id", id_str.c_str()));
1607   EXPECT_TRUE(FindNamePhaseKeyValue("name3", "S", "id", "0x0"));
1608   EXPECT_TRUE(FindNamePhaseKeyValue("name3", "p", "id", "0x0"));
1609 
1610   // BEGIN events should not have id
1611   EXPECT_FALSE(FindNamePhaseKeyValue("name2", "B", "id", "0"));
1612 }
1613 
1614 // Test ASYNC_BEGIN/END events
TEST_F(TraceEventTestFixture,AsyncBeginEndPointerMangling)1615 TEST_F(TraceEventTestFixture, AsyncBeginEndPointerMangling) {
1616   void* ptr = this;
1617 
1618   TraceLog::GetInstance()->SetProcessID(100);
1619   BeginTrace();
1620   TRACE_EVENT_ASYNC_BEGIN0("cat", "name1", ptr);
1621   TRACE_EVENT_ASYNC_BEGIN0("cat", "name2", ptr);
1622   EndTraceAndFlush();
1623 
1624   TraceLog::GetInstance()->SetProcessID(200);
1625   BeginTrace();
1626   TRACE_EVENT_ASYNC_END0("cat", "name1", ptr);
1627   EndTraceAndFlush();
1628 
1629   DictionaryValue* async_begin = FindNamePhase("name1", "S");
1630   DictionaryValue* async_begin2 = FindNamePhase("name2", "S");
1631   DictionaryValue* async_end = FindNamePhase("name1", "F");
1632   EXPECT_TRUE(async_begin);
1633   EXPECT_TRUE(async_begin2);
1634   EXPECT_TRUE(async_end);
1635 
1636   Value* value = nullptr;
1637   std::string async_begin_id_str;
1638   std::string async_begin2_id_str;
1639   std::string async_end_id_str;
1640   ASSERT_TRUE(async_begin->Get("id", &value));
1641   ASSERT_TRUE(value->GetAsString(&async_begin_id_str));
1642   ASSERT_TRUE(async_begin2->Get("id", &value));
1643   ASSERT_TRUE(value->GetAsString(&async_begin2_id_str));
1644   ASSERT_TRUE(async_end->Get("id", &value));
1645   ASSERT_TRUE(value->GetAsString(&async_end_id_str));
1646 
1647   EXPECT_STREQ(async_begin_id_str.c_str(), async_begin2_id_str.c_str());
1648   EXPECT_STRNE(async_begin_id_str.c_str(), async_end_id_str.c_str());
1649 }
1650 
1651 // Test that static strings are not copied.
TEST_F(TraceEventTestFixture,StaticStringVsString)1652 TEST_F(TraceEventTestFixture, StaticStringVsString) {
1653   TraceLog* tracer = TraceLog::GetInstance();
1654   // Make sure old events are flushed:
1655   EXPECT_EQ(0u, tracer->GetStatus().event_count);
1656   const unsigned char* category_group_enabled =
1657       TRACE_EVENT_API_GET_CATEGORY_GROUP_ENABLED("cat");
1658 
1659   {
1660     BeginTrace();
1661     // Test that string arguments are copied.
1662     TraceEventHandle handle1 =
1663         trace_event_internal::AddTraceEvent(
1664             TRACE_EVENT_PHASE_INSTANT, category_group_enabled, "name1",
1665             trace_event_internal::kGlobalScope, trace_event_internal::kNoId,
1666             0, trace_event_internal::kNoId,
1667             "arg1", std::string("argval"), "arg2", std::string("argval"));
1668     // Test that static TRACE_STR_COPY string arguments are copied.
1669     TraceEventHandle handle2 =
1670         trace_event_internal::AddTraceEvent(
1671             TRACE_EVENT_PHASE_INSTANT, category_group_enabled, "name2",
1672             trace_event_internal::kGlobalScope, trace_event_internal::kNoId,
1673             0, trace_event_internal::kNoId,
1674             "arg1", TRACE_STR_COPY("argval"),
1675             "arg2", TRACE_STR_COPY("argval"));
1676     EXPECT_GT(tracer->GetStatus().event_count, 1u);
1677     const TraceEvent* event1 = tracer->GetEventByHandle(handle1);
1678     const TraceEvent* event2 = tracer->GetEventByHandle(handle2);
1679     ASSERT_TRUE(event1);
1680     ASSERT_TRUE(event2);
1681     EXPECT_STREQ("name1", event1->name());
1682     EXPECT_STREQ("name2", event2->name());
1683     EXPECT_TRUE(event1->parameter_copy_storage() != nullptr);
1684     EXPECT_TRUE(event2->parameter_copy_storage() != nullptr);
1685     EXPECT_GT(event1->parameter_copy_storage()->size(), 0u);
1686     EXPECT_GT(event2->parameter_copy_storage()->size(), 0u);
1687     EndTraceAndFlush();
1688   }
1689 
1690   {
1691     BeginTrace();
1692     // Test that static literal string arguments are not copied.
1693     TraceEventHandle handle1 =
1694         trace_event_internal::AddTraceEvent(
1695             TRACE_EVENT_PHASE_INSTANT, category_group_enabled, "name1",
1696             trace_event_internal::kGlobalScope, trace_event_internal::kNoId,
1697             0, trace_event_internal::kNoId,
1698             "arg1", "argval", "arg2", "argval");
1699     // Test that static TRACE_STR_COPY NULL string arguments are not copied.
1700     const char* str1 = nullptr;
1701     const char* str2 = nullptr;
1702     TraceEventHandle handle2 =
1703         trace_event_internal::AddTraceEvent(
1704             TRACE_EVENT_PHASE_INSTANT, category_group_enabled, "name2",
1705             trace_event_internal::kGlobalScope, trace_event_internal::kNoId,
1706             0, trace_event_internal::kNoId,
1707             "arg1", TRACE_STR_COPY(str1),
1708             "arg2", TRACE_STR_COPY(str2));
1709     EXPECT_GT(tracer->GetStatus().event_count, 1u);
1710     const TraceEvent* event1 = tracer->GetEventByHandle(handle1);
1711     const TraceEvent* event2 = tracer->GetEventByHandle(handle2);
1712     ASSERT_TRUE(event1);
1713     ASSERT_TRUE(event2);
1714     EXPECT_STREQ("name1", event1->name());
1715     EXPECT_STREQ("name2", event2->name());
1716     EXPECT_TRUE(event1->parameter_copy_storage() == nullptr);
1717     EXPECT_TRUE(event2->parameter_copy_storage() == nullptr);
1718     EndTraceAndFlush();
1719   }
1720 }
1721 
1722 // Test that data sent from other threads is gathered
TEST_F(TraceEventTestFixture,DataCapturedOnThread)1723 TEST_F(TraceEventTestFixture, DataCapturedOnThread) {
1724   BeginTrace();
1725 
1726   Thread thread("1");
1727   WaitableEvent task_complete_event(WaitableEvent::ResetPolicy::AUTOMATIC,
1728                                     WaitableEvent::InitialState::NOT_SIGNALED);
1729   thread.Start();
1730 
1731   thread.task_runner()->PostTask(
1732       FROM_HERE,
1733       base::BindOnce(&TraceWithAllMacroVariants, &task_complete_event));
1734   task_complete_event.Wait();
1735   thread.Stop();
1736 
1737   EndTraceAndFlush();
1738   ValidateAllTraceMacrosCreatedData(trace_parsed_);
1739 }
1740 
1741 // Test that data sent from multiple threads is gathered
TEST_F(TraceEventTestFixture,DataCapturedManyThreads)1742 TEST_F(TraceEventTestFixture, DataCapturedManyThreads) {
1743   BeginTrace();
1744 
1745   const int num_threads = 4;
1746   const int num_events = 4000;
1747   Thread* threads[num_threads];
1748   WaitableEvent* task_complete_events[num_threads];
1749   for (int i = 0; i < num_threads; i++) {
1750     threads[i] = new Thread(StringPrintf("Thread %d", i));
1751     task_complete_events[i] =
1752         new WaitableEvent(WaitableEvent::ResetPolicy::AUTOMATIC,
1753                           WaitableEvent::InitialState::NOT_SIGNALED);
1754     threads[i]->Start();
1755     threads[i]->task_runner()->PostTask(
1756         FROM_HERE, base::BindOnce(&TraceManyInstantEvents, i, num_events,
1757                                   task_complete_events[i]));
1758   }
1759 
1760   for (int i = 0; i < num_threads; i++) {
1761     task_complete_events[i]->Wait();
1762   }
1763 
1764   // Let half of the threads end before flush.
1765   for (int i = 0; i < num_threads / 2; i++) {
1766     threads[i]->Stop();
1767     delete threads[i];
1768     delete task_complete_events[i];
1769   }
1770 
1771   EndTraceAndFlushInThreadWithMessageLoop();
1772   ValidateInstantEventPresentOnEveryThread(trace_parsed_,
1773                                            num_threads, num_events);
1774 
1775   // Let the other half of the threads end after flush.
1776   for (int i = num_threads / 2; i < num_threads; i++) {
1777     threads[i]->Stop();
1778     delete threads[i];
1779     delete task_complete_events[i];
1780   }
1781 }
1782 
1783 // Test that thread and process names show up in the trace
TEST_F(TraceEventTestFixture,ThreadNames)1784 TEST_F(TraceEventTestFixture, ThreadNames) {
1785   // Create threads before we enable tracing to make sure
1786   // that tracelog still captures them.
1787   const int kNumThreads = 4;
1788   const int kNumEvents = 10;
1789   Thread* threads[kNumThreads];
1790   PlatformThreadId thread_ids[kNumThreads];
1791   for (int i = 0; i < kNumThreads; i++)
1792     threads[i] = new Thread(StringPrintf("Thread %d", i));
1793 
1794   // Enable tracing.
1795   BeginTrace();
1796 
1797   // Now run some trace code on these threads.
1798   WaitableEvent* task_complete_events[kNumThreads];
1799   for (int i = 0; i < kNumThreads; i++) {
1800     task_complete_events[i] =
1801         new WaitableEvent(WaitableEvent::ResetPolicy::AUTOMATIC,
1802                           WaitableEvent::InitialState::NOT_SIGNALED);
1803     threads[i]->Start();
1804     thread_ids[i] = threads[i]->GetThreadId();
1805     threads[i]->task_runner()->PostTask(
1806         FROM_HERE, base::BindOnce(&TraceManyInstantEvents, i, kNumEvents,
1807                                   task_complete_events[i]));
1808   }
1809   for (int i = 0; i < kNumThreads; i++) {
1810     task_complete_events[i]->Wait();
1811   }
1812 
1813   // Shut things down.
1814   for (int i = 0; i < kNumThreads; i++) {
1815     threads[i]->Stop();
1816     delete threads[i];
1817     delete task_complete_events[i];
1818   }
1819 
1820   EndTraceAndFlush();
1821 
1822   std::string tmp;
1823   int tmp_int;
1824   const DictionaryValue* item;
1825 
1826   // Make sure we get thread name metadata.
1827   // Note, the test suite may have created a ton of threads.
1828   // So, we'll have thread names for threads we didn't create.
1829   std::vector<const DictionaryValue*> items =
1830       FindTraceEntries(trace_parsed_, "thread_name");
1831   for (int i = 0; i < static_cast<int>(items.size()); i++) {
1832     item = items[i];
1833     ASSERT_TRUE(item);
1834     EXPECT_TRUE(item->GetInteger("tid", &tmp_int));
1835 
1836     // See if this thread name is one of the threads we just created
1837     for (int j = 0; j < kNumThreads; j++) {
1838       if (static_cast<int>(thread_ids[j]) != tmp_int)
1839         continue;
1840 
1841       std::string expected_name = StringPrintf("Thread %d", j);
1842       EXPECT_TRUE(item->GetString("ph", &tmp) && tmp == "M");
1843       EXPECT_TRUE(item->GetInteger("pid", &tmp_int) &&
1844                   tmp_int == static_cast<int>(base::GetCurrentProcId()));
1845       // If the thread name changes or the tid gets reused, the name will be
1846       // a comma-separated list of thread names, so look for a substring.
1847       EXPECT_TRUE(item->GetString("args.name", &tmp) &&
1848                   tmp.find(expected_name) != std::string::npos);
1849     }
1850   }
1851 }
1852 
TEST_F(TraceEventTestFixture,ThreadNameChanges)1853 TEST_F(TraceEventTestFixture, ThreadNameChanges) {
1854   BeginTrace();
1855 
1856   PlatformThread::SetName("");
1857   TRACE_EVENT_INSTANT0("drink", "water", TRACE_EVENT_SCOPE_THREAD);
1858 
1859   PlatformThread::SetName("cafe");
1860   TRACE_EVENT_INSTANT0("drink", "coffee", TRACE_EVENT_SCOPE_THREAD);
1861 
1862   PlatformThread::SetName("shop");
1863   // No event here, so won't appear in combined name.
1864 
1865   PlatformThread::SetName("pub");
1866   TRACE_EVENT_INSTANT0("drink", "beer", TRACE_EVENT_SCOPE_THREAD);
1867   TRACE_EVENT_INSTANT0("drink", "wine", TRACE_EVENT_SCOPE_THREAD);
1868 
1869   PlatformThread::SetName(" bar");
1870   TRACE_EVENT_INSTANT0("drink", "whisky", TRACE_EVENT_SCOPE_THREAD);
1871 
1872   EndTraceAndFlush();
1873 
1874   std::vector<const DictionaryValue*> items =
1875       FindTraceEntries(trace_parsed_, "thread_name");
1876   EXPECT_EQ(1u, items.size());
1877   ASSERT_GT(items.size(), 0u);
1878   const DictionaryValue* item = items[0];
1879   ASSERT_TRUE(item);
1880   int tid;
1881   EXPECT_TRUE(item->GetInteger("tid", &tid));
1882   EXPECT_EQ(PlatformThread::CurrentId(), static_cast<PlatformThreadId>(tid));
1883 
1884   std::string expected_name = "cafe,pub, bar";
1885   std::string tmp;
1886   EXPECT_TRUE(item->GetString("args.name", &tmp));
1887   EXPECT_EQ(expected_name, tmp);
1888 }
1889 
1890 // Test that the disabled trace categories are included/excluded from the
1891 // trace output correctly.
TEST_F(TraceEventTestFixture,DisabledCategories)1892 TEST_F(TraceEventTestFixture, DisabledCategories) {
1893   BeginTrace();
1894   TRACE_EVENT_INSTANT0(TRACE_DISABLED_BY_DEFAULT("cc"), "first",
1895                        TRACE_EVENT_SCOPE_THREAD);
1896   TRACE_EVENT_INSTANT0("included", "first", TRACE_EVENT_SCOPE_THREAD);
1897   EndTraceAndFlush();
1898   {
1899     const DictionaryValue* item = nullptr;
1900     ListValue& trace_parsed = trace_parsed_;
1901     EXPECT_NOT_FIND_("disabled-by-default-cc");
1902     EXPECT_FIND_("included");
1903   }
1904   Clear();
1905 
1906   BeginSpecificTrace("disabled-by-default-cc");
1907   TRACE_EVENT_INSTANT0(TRACE_DISABLED_BY_DEFAULT("cc"), "second",
1908                        TRACE_EVENT_SCOPE_THREAD);
1909   TRACE_EVENT_INSTANT0("other_included", "second", TRACE_EVENT_SCOPE_THREAD);
1910   EndTraceAndFlush();
1911 
1912   {
1913     const DictionaryValue* item = nullptr;
1914     ListValue& trace_parsed = trace_parsed_;
1915     EXPECT_FIND_("disabled-by-default-cc");
1916     EXPECT_FIND_("other_included");
1917   }
1918 
1919   Clear();
1920 
1921   BeginSpecificTrace("other_included");
1922   TRACE_EVENT_INSTANT0(TRACE_DISABLED_BY_DEFAULT("cc") ",other_included",
1923                        "first", TRACE_EVENT_SCOPE_THREAD);
1924   TRACE_EVENT_INSTANT0("other_included," TRACE_DISABLED_BY_DEFAULT("cc"),
1925                        "second", TRACE_EVENT_SCOPE_THREAD);
1926   EndTraceAndFlush();
1927 
1928   {
1929     const DictionaryValue* item = nullptr;
1930     ListValue& trace_parsed = trace_parsed_;
1931     EXPECT_FIND_("disabled-by-default-cc,other_included");
1932     EXPECT_FIND_("other_included,disabled-by-default-cc");
1933   }
1934 }
1935 
TEST_F(TraceEventTestFixture,NormallyNoDeepCopy)1936 TEST_F(TraceEventTestFixture, NormallyNoDeepCopy) {
1937   // Test that the TRACE_EVENT macros do not deep-copy their string. If they
1938   // do so it may indicate a performance regression, but more-over it would
1939   // make the DEEP_COPY overloads redundant.
1940   std::string name_string("event name");
1941 
1942   BeginTrace();
1943   TRACE_EVENT_INSTANT0("category", name_string.c_str(),
1944                        TRACE_EVENT_SCOPE_THREAD);
1945 
1946   // Modify the string in place (a wholesale reassignment may leave the old
1947   // string intact on the heap).
1948   name_string[0] = '@';
1949 
1950   EndTraceAndFlush();
1951 
1952   EXPECT_FALSE(FindTraceEntry(trace_parsed_, "event name"));
1953   EXPECT_TRUE(FindTraceEntry(trace_parsed_, name_string.c_str()));
1954 }
1955 
TEST_F(TraceEventTestFixture,DeepCopy)1956 TEST_F(TraceEventTestFixture, DeepCopy) {
1957   static const char kOriginalName1[] = "name1";
1958   static const char kOriginalName2[] = "name2";
1959   static const char kOriginalName3[] = "name3";
1960   std::string name1(kOriginalName1);
1961   std::string name2(kOriginalName2);
1962   std::string name3(kOriginalName3);
1963   std::string arg1("arg1");
1964   std::string arg2("arg2");
1965   std::string val1("val1");
1966   std::string val2("val2");
1967 
1968   BeginTrace();
1969   TRACE_EVENT_COPY_INSTANT0("category", name1.c_str(),
1970                             TRACE_EVENT_SCOPE_THREAD);
1971   TRACE_EVENT_COPY_BEGIN1("category", name2.c_str(),
1972                           arg1.c_str(), 5);
1973   TRACE_EVENT_COPY_END2("category", name3.c_str(),
1974                         arg1.c_str(), val1,
1975                         arg2.c_str(), val2);
1976 
1977   // As per NormallyNoDeepCopy, modify the strings in place.
1978   name1[0] = name2[0] = name3[0] = arg1[0] = arg2[0] = val1[0] = val2[0] = '@';
1979 
1980   EndTraceAndFlush();
1981 
1982   EXPECT_FALSE(FindTraceEntry(trace_parsed_, name1.c_str()));
1983   EXPECT_FALSE(FindTraceEntry(trace_parsed_, name2.c_str()));
1984   EXPECT_FALSE(FindTraceEntry(trace_parsed_, name3.c_str()));
1985 
1986   const DictionaryValue* entry1 = FindTraceEntry(trace_parsed_, kOriginalName1);
1987   const DictionaryValue* entry2 = FindTraceEntry(trace_parsed_, kOriginalName2);
1988   const DictionaryValue* entry3 = FindTraceEntry(trace_parsed_, kOriginalName3);
1989   ASSERT_TRUE(entry1);
1990   ASSERT_TRUE(entry2);
1991   ASSERT_TRUE(entry3);
1992 
1993   int i;
1994   EXPECT_FALSE(entry2->GetInteger("args.@rg1", &i));
1995   EXPECT_TRUE(entry2->GetInteger("args.arg1", &i));
1996   EXPECT_EQ(5, i);
1997 
1998   std::string s;
1999   EXPECT_TRUE(entry3->GetString("args.arg1", &s));
2000   EXPECT_EQ("val1", s);
2001   EXPECT_TRUE(entry3->GetString("args.arg2", &s));
2002   EXPECT_EQ("val2", s);
2003 }
2004 
2005 // Test that TraceResultBuffer outputs the correct result whether it is added
2006 // in chunks or added all at once.
TEST_F(TraceEventTestFixture,TraceResultBuffer)2007 TEST_F(TraceEventTestFixture, TraceResultBuffer) {
2008   Clear();
2009 
2010   trace_buffer_.Start();
2011   trace_buffer_.AddFragment("bla1");
2012   trace_buffer_.AddFragment("bla2");
2013   trace_buffer_.AddFragment("bla3,bla4");
2014   trace_buffer_.Finish();
2015   EXPECT_STREQ(json_output_.json_output.c_str(), "[bla1,bla2,bla3,bla4]");
2016 
2017   Clear();
2018 
2019   trace_buffer_.Start();
2020   trace_buffer_.AddFragment("bla1,bla2,bla3,bla4");
2021   trace_buffer_.Finish();
2022   EXPECT_STREQ(json_output_.json_output.c_str(), "[bla1,bla2,bla3,bla4]");
2023 }
2024 
2025 // Test that trace_event parameters are not evaluated if the tracing
2026 // system is disabled.
TEST_F(TraceEventTestFixture,TracingIsLazy)2027 TEST_F(TraceEventTestFixture, TracingIsLazy) {
2028   BeginTrace();
2029 
2030   int a = 0;
2031   TRACE_EVENT_INSTANT1("category", "test", TRACE_EVENT_SCOPE_THREAD, "a", a++);
2032   EXPECT_EQ(1, a);
2033 
2034   TraceLog::GetInstance()->SetDisabled();
2035 
2036   TRACE_EVENT_INSTANT1("category", "test", TRACE_EVENT_SCOPE_THREAD, "a", a++);
2037   EXPECT_EQ(1, a);
2038 
2039   EndTraceAndFlush();
2040 }
2041 
TEST_F(TraceEventTestFixture,TraceEnableDisable)2042 TEST_F(TraceEventTestFixture, TraceEnableDisable) {
2043   TraceLog* trace_log = TraceLog::GetInstance();
2044   TraceConfig tc_inc_all("*", "");
2045   trace_log->SetEnabled(tc_inc_all, TraceLog::RECORDING_MODE);
2046   EXPECT_TRUE(trace_log->IsEnabled());
2047   trace_log->SetDisabled();
2048   EXPECT_FALSE(trace_log->IsEnabled());
2049 
2050   trace_log->SetEnabled(tc_inc_all, TraceLog::RECORDING_MODE);
2051   EXPECT_TRUE(trace_log->IsEnabled());
2052   const std::vector<std::string> empty;
2053   trace_log->SetEnabled(TraceConfig(), TraceLog::RECORDING_MODE);
2054   EXPECT_TRUE(trace_log->IsEnabled());
2055   trace_log->SetDisabled();
2056   EXPECT_FALSE(trace_log->IsEnabled());
2057   trace_log->SetDisabled();
2058   EXPECT_FALSE(trace_log->IsEnabled());
2059 }
2060 
TEST_F(TraceEventTestFixture,TraceCategoriesAfterNestedEnable)2061 TEST_F(TraceEventTestFixture, TraceCategoriesAfterNestedEnable) {
2062   TraceLog* trace_log = TraceLog::GetInstance();
2063   trace_log->SetEnabled(TraceConfig("foo,bar", ""), TraceLog::RECORDING_MODE);
2064   EXPECT_TRUE(*trace_log->GetCategoryGroupEnabled("foo"));
2065   EXPECT_TRUE(*trace_log->GetCategoryGroupEnabled("bar"));
2066   EXPECT_FALSE(*trace_log->GetCategoryGroupEnabled("baz"));
2067   trace_log->SetEnabled(TraceConfig("foo2", ""), TraceLog::RECORDING_MODE);
2068   EXPECT_TRUE(*trace_log->GetCategoryGroupEnabled("foo2"));
2069   EXPECT_FALSE(*trace_log->GetCategoryGroupEnabled("baz"));
2070   // The "" becomes the default catergory set when applied.
2071   trace_log->SetEnabled(TraceConfig(), TraceLog::RECORDING_MODE);
2072   EXPECT_TRUE(*trace_log->GetCategoryGroupEnabled("foo"));
2073   EXPECT_TRUE(*trace_log->GetCategoryGroupEnabled("baz"));
2074   EXPECT_STREQ(
2075     "",
2076     trace_log->GetCurrentTraceConfig().ToCategoryFilterString().c_str());
2077   trace_log->SetDisabled();
2078   trace_log->SetDisabled();
2079   trace_log->SetDisabled();
2080   EXPECT_FALSE(*trace_log->GetCategoryGroupEnabled("foo"));
2081   EXPECT_FALSE(*trace_log->GetCategoryGroupEnabled("baz"));
2082 
2083   trace_log->SetEnabled(TraceConfig("-foo,-bar", ""), TraceLog::RECORDING_MODE);
2084   EXPECT_FALSE(*trace_log->GetCategoryGroupEnabled("foo"));
2085   EXPECT_TRUE(*trace_log->GetCategoryGroupEnabled("baz"));
2086   trace_log->SetEnabled(TraceConfig("moo", ""), TraceLog::RECORDING_MODE);
2087   EXPECT_TRUE(*trace_log->GetCategoryGroupEnabled("baz"));
2088   EXPECT_TRUE(*trace_log->GetCategoryGroupEnabled("moo"));
2089   EXPECT_FALSE(*trace_log->GetCategoryGroupEnabled("foo"));
2090   EXPECT_STREQ(
2091     "-foo,-bar",
2092     trace_log->GetCurrentTraceConfig().ToCategoryFilterString().c_str());
2093   trace_log->SetDisabled();
2094   trace_log->SetDisabled();
2095 
2096   // Make sure disabled categories aren't cleared if we set in the second.
2097   trace_log->SetEnabled(TraceConfig("disabled-by-default-cc,foo", ""),
2098                         TraceLog::RECORDING_MODE);
2099   EXPECT_FALSE(*trace_log->GetCategoryGroupEnabled("bar"));
2100   trace_log->SetEnabled(TraceConfig("disabled-by-default-gpu", ""),
2101                         TraceLog::RECORDING_MODE);
2102   EXPECT_TRUE(*trace_log->GetCategoryGroupEnabled("disabled-by-default-cc"));
2103   EXPECT_TRUE(*trace_log->GetCategoryGroupEnabled("disabled-by-default-gpu"));
2104   EXPECT_TRUE(*trace_log->GetCategoryGroupEnabled("bar"));
2105   EXPECT_STREQ(
2106     "disabled-by-default-cc,disabled-by-default-gpu",
2107     trace_log->GetCurrentTraceConfig().ToCategoryFilterString().c_str());
2108   trace_log->SetDisabled();
2109   trace_log->SetDisabled();
2110 }
2111 
TEST_F(TraceEventTestFixture,TraceWithDefaultCategoryFilters)2112 TEST_F(TraceEventTestFixture, TraceWithDefaultCategoryFilters) {
2113   TraceLog* trace_log = TraceLog::GetInstance();
2114 
2115   trace_log->SetEnabled(TraceConfig(), TraceLog::RECORDING_MODE);
2116   CheckTraceDefaultCategoryFilters(*trace_log);
2117   trace_log->SetDisabled();
2118 
2119   trace_log->SetEnabled(TraceConfig("", ""), TraceLog::RECORDING_MODE);
2120   CheckTraceDefaultCategoryFilters(*trace_log);
2121   trace_log->SetDisabled();
2122 
2123   trace_log->SetEnabled(TraceConfig("*", ""), TraceLog::RECORDING_MODE);
2124   CheckTraceDefaultCategoryFilters(*trace_log);
2125   trace_log->SetDisabled();
2126 
2127   trace_log->SetEnabled(TraceConfig(""), TraceLog::RECORDING_MODE);
2128   CheckTraceDefaultCategoryFilters(*trace_log);
2129   trace_log->SetDisabled();
2130 }
2131 
TEST_F(TraceEventTestFixture,TraceWithDisabledByDefaultCategoryFilters)2132 TEST_F(TraceEventTestFixture, TraceWithDisabledByDefaultCategoryFilters) {
2133   TraceLog* trace_log = TraceLog::GetInstance();
2134 
2135   trace_log->SetEnabled(TraceConfig("foo,disabled-by-default-foo", ""),
2136                         TraceLog::RECORDING_MODE);
2137   EXPECT_TRUE(*trace_log->GetCategoryGroupEnabled("foo"));
2138   EXPECT_TRUE(*trace_log->GetCategoryGroupEnabled("disabled-by-default-foo"));
2139   EXPECT_FALSE(*trace_log->GetCategoryGroupEnabled("bar"));
2140   EXPECT_FALSE(*trace_log->GetCategoryGroupEnabled("disabled-by-default-bar"));
2141   trace_log->SetDisabled();
2142 
2143   // Enabling only the disabled-by-default-* category means the default ones
2144   // are also enabled.
2145   trace_log->SetEnabled(TraceConfig("disabled-by-default-foo", ""),
2146                         TraceLog::RECORDING_MODE);
2147   EXPECT_TRUE(*trace_log->GetCategoryGroupEnabled("disabled-by-default-foo"));
2148   EXPECT_TRUE(*trace_log->GetCategoryGroupEnabled("foo"));
2149   EXPECT_TRUE(*trace_log->GetCategoryGroupEnabled("bar"));
2150   EXPECT_FALSE(*trace_log->GetCategoryGroupEnabled("disabled-by-default-bar"));
2151   trace_log->SetDisabled();
2152 }
2153 
2154 class MyData : public ConvertableToTraceFormat {
2155  public:
2156   MyData() = default;
2157   ~MyData() override = default;
2158 
AppendAsTraceFormat(std::string * out) const2159   void AppendAsTraceFormat(std::string* out) const override {
2160     out->append("{\"foo\":1}");
2161   }
2162 
2163  private:
2164   DISALLOW_COPY_AND_ASSIGN(MyData);
2165 };
2166 
TEST_F(TraceEventTestFixture,ConvertableTypes)2167 TEST_F(TraceEventTestFixture, ConvertableTypes) {
2168   TraceLog::GetInstance()->SetEnabled(TraceConfig(kRecordAllCategoryFilter, ""),
2169                                       TraceLog::RECORDING_MODE);
2170 
2171   std::unique_ptr<ConvertableToTraceFormat> data(new MyData());
2172   std::unique_ptr<ConvertableToTraceFormat> data1(new MyData());
2173   std::unique_ptr<ConvertableToTraceFormat> data2(new MyData());
2174   TRACE_EVENT1("foo", "bar", "data", std::move(data));
2175   TRACE_EVENT2("foo", "baz", "data1", std::move(data1), "data2",
2176                std::move(data2));
2177 
2178   // Check that std::unique_ptr<DerivedClassOfConvertable> are properly treated
2179   // as
2180   // convertable and not accidentally casted to bool.
2181   std::unique_ptr<MyData> convertData1(new MyData());
2182   std::unique_ptr<MyData> convertData2(new MyData());
2183   std::unique_ptr<MyData> convertData3(new MyData());
2184   std::unique_ptr<MyData> convertData4(new MyData());
2185   TRACE_EVENT2("foo", "string_first", "str", "string value 1", "convert",
2186                std::move(convertData1));
2187   TRACE_EVENT2("foo", "string_second", "convert", std::move(convertData2),
2188                "str", "string value 2");
2189   TRACE_EVENT2("foo", "both_conv", "convert1", std::move(convertData3),
2190                "convert2", std::move(convertData4));
2191   EndTraceAndFlush();
2192 
2193   // One arg version.
2194   DictionaryValue* dict = FindNamePhase("bar", "X");
2195   ASSERT_TRUE(dict);
2196 
2197   const DictionaryValue* args_dict = nullptr;
2198   dict->GetDictionary("args", &args_dict);
2199   ASSERT_TRUE(args_dict);
2200 
2201   const Value* value = nullptr;
2202   const DictionaryValue* convertable_dict = nullptr;
2203   EXPECT_TRUE(args_dict->Get("data", &value));
2204   ASSERT_TRUE(value->GetAsDictionary(&convertable_dict));
2205 
2206   int foo_val;
2207   EXPECT_TRUE(convertable_dict->GetInteger("foo", &foo_val));
2208   EXPECT_EQ(1, foo_val);
2209 
2210   // Two arg version.
2211   dict = FindNamePhase("baz", "X");
2212   ASSERT_TRUE(dict);
2213 
2214   args_dict = nullptr;
2215   dict->GetDictionary("args", &args_dict);
2216   ASSERT_TRUE(args_dict);
2217 
2218   value = nullptr;
2219   convertable_dict = nullptr;
2220   EXPECT_TRUE(args_dict->Get("data1", &value));
2221   ASSERT_TRUE(value->GetAsDictionary(&convertable_dict));
2222 
2223   value = nullptr;
2224   convertable_dict = nullptr;
2225   EXPECT_TRUE(args_dict->Get("data2", &value));
2226   ASSERT_TRUE(value->GetAsDictionary(&convertable_dict));
2227 
2228   // Convertable with other types.
2229   dict = FindNamePhase("string_first", "X");
2230   ASSERT_TRUE(dict);
2231 
2232   args_dict = nullptr;
2233   dict->GetDictionary("args", &args_dict);
2234   ASSERT_TRUE(args_dict);
2235 
2236   std::string str_value;
2237   EXPECT_TRUE(args_dict->GetString("str", &str_value));
2238   EXPECT_STREQ("string value 1", str_value.c_str());
2239 
2240   value = nullptr;
2241   convertable_dict = nullptr;
2242   foo_val = 0;
2243   EXPECT_TRUE(args_dict->Get("convert", &value));
2244   ASSERT_TRUE(value->GetAsDictionary(&convertable_dict));
2245   EXPECT_TRUE(convertable_dict->GetInteger("foo", &foo_val));
2246   EXPECT_EQ(1, foo_val);
2247 
2248   dict = FindNamePhase("string_second", "X");
2249   ASSERT_TRUE(dict);
2250 
2251   args_dict = nullptr;
2252   dict->GetDictionary("args", &args_dict);
2253   ASSERT_TRUE(args_dict);
2254 
2255   EXPECT_TRUE(args_dict->GetString("str", &str_value));
2256   EXPECT_STREQ("string value 2", str_value.c_str());
2257 
2258   value = nullptr;
2259   convertable_dict = nullptr;
2260   foo_val = 0;
2261   EXPECT_TRUE(args_dict->Get("convert", &value));
2262   ASSERT_TRUE(value->GetAsDictionary(&convertable_dict));
2263   EXPECT_TRUE(convertable_dict->GetInteger("foo", &foo_val));
2264   EXPECT_EQ(1, foo_val);
2265 
2266   dict = FindNamePhase("both_conv", "X");
2267   ASSERT_TRUE(dict);
2268 
2269   args_dict = nullptr;
2270   dict->GetDictionary("args", &args_dict);
2271   ASSERT_TRUE(args_dict);
2272 
2273   value = nullptr;
2274   convertable_dict = nullptr;
2275   foo_val = 0;
2276   EXPECT_TRUE(args_dict->Get("convert1", &value));
2277   ASSERT_TRUE(value->GetAsDictionary(&convertable_dict));
2278   EXPECT_TRUE(args_dict->Get("convert2", &value));
2279   ASSERT_TRUE(value->GetAsDictionary(&convertable_dict));
2280 }
2281 
TEST_F(TraceEventTestFixture,PrimitiveArgs)2282 TEST_F(TraceEventTestFixture, PrimitiveArgs) {
2283   TraceLog::GetInstance()->SetEnabled(TraceConfig(kRecordAllCategoryFilter, ""),
2284                                       TraceLog::RECORDING_MODE);
2285 
2286   TRACE_EVENT1("foo", "event1", "int_one", 1);
2287   TRACE_EVENT1("foo", "event2", "int_neg_ten", -10);
2288   TRACE_EVENT1("foo", "event3", "float_one", 1.0f);
2289   TRACE_EVENT1("foo", "event4", "float_half", .5f);
2290   TRACE_EVENT1("foo", "event5", "float_neghalf", -.5f);
2291   TRACE_EVENT1("foo", "event6", "float_infinity",
2292       std::numeric_limits<float>::infinity());
2293   TRACE_EVENT1("foo", "event6b", "float_neg_infinity",
2294       -std::numeric_limits<float>::infinity());
2295   TRACE_EVENT1("foo", "event7", "double_nan",
2296       std::numeric_limits<double>::quiet_NaN());
2297   void* p = nullptr;
2298   TRACE_EVENT1("foo", "event8", "pointer_null", p);
2299   p = reinterpret_cast<void*>(0xbadf00d);
2300   TRACE_EVENT1("foo", "event9", "pointer_badf00d", p);
2301   TRACE_EVENT1("foo", "event10", "bool_true", true);
2302   TRACE_EVENT1("foo", "event11", "bool_false", false);
2303   TRACE_EVENT1("foo", "event12", "time_null",
2304       base::Time());
2305   TRACE_EVENT1("foo", "event13", "time_one",
2306       base::Time::FromInternalValue(1));
2307   TRACE_EVENT1("foo", "event14", "timeticks_null",
2308       base::TimeTicks());
2309   TRACE_EVENT1("foo", "event15", "timeticks_one",
2310       base::TimeTicks::FromInternalValue(1));
2311   EndTraceAndFlush();
2312 
2313   const DictionaryValue* args_dict = nullptr;
2314   DictionaryValue* dict = nullptr;
2315   const Value* value = nullptr;
2316   std::string str_value;
2317   int int_value;
2318   double double_value;
2319   bool bool_value;
2320 
2321   dict = FindNamePhase("event1", "X");
2322   ASSERT_TRUE(dict);
2323   dict->GetDictionary("args", &args_dict);
2324   ASSERT_TRUE(args_dict);
2325   EXPECT_TRUE(args_dict->GetInteger("int_one", &int_value));
2326   EXPECT_EQ(1, int_value);
2327 
2328   dict = FindNamePhase("event2", "X");
2329   ASSERT_TRUE(dict);
2330   dict->GetDictionary("args", &args_dict);
2331   ASSERT_TRUE(args_dict);
2332   EXPECT_TRUE(args_dict->GetInteger("int_neg_ten", &int_value));
2333   EXPECT_EQ(-10, int_value);
2334 
2335   // 1f must be serlized to JSON as "1.0" in order to be a double, not an int.
2336   dict = FindNamePhase("event3", "X");
2337   ASSERT_TRUE(dict);
2338   dict->GetDictionary("args", &args_dict);
2339   ASSERT_TRUE(args_dict);
2340   EXPECT_TRUE(args_dict->Get("float_one", &value));
2341   EXPECT_TRUE(value->is_double());
2342   EXPECT_TRUE(value->GetAsDouble(&double_value));
2343   EXPECT_EQ(1, double_value);
2344 
2345   // .5f must be serlized to JSON as "0.5".
2346   dict = FindNamePhase("event4", "X");
2347   ASSERT_TRUE(dict);
2348   dict->GetDictionary("args", &args_dict);
2349   ASSERT_TRUE(args_dict);
2350   EXPECT_TRUE(args_dict->Get("float_half", &value));
2351   EXPECT_TRUE(value->is_double());
2352   EXPECT_TRUE(value->GetAsDouble(&double_value));
2353   EXPECT_EQ(0.5, double_value);
2354 
2355   // -.5f must be serlized to JSON as "-0.5".
2356   dict = FindNamePhase("event5", "X");
2357   ASSERT_TRUE(dict);
2358   dict->GetDictionary("args", &args_dict);
2359   ASSERT_TRUE(args_dict);
2360   EXPECT_TRUE(args_dict->Get("float_neghalf", &value));
2361   EXPECT_TRUE(value->is_double());
2362   EXPECT_TRUE(value->GetAsDouble(&double_value));
2363   EXPECT_EQ(-0.5, double_value);
2364 
2365   // Infinity is serialized to JSON as a string.
2366   dict = FindNamePhase("event6", "X");
2367   ASSERT_TRUE(dict);
2368   dict->GetDictionary("args", &args_dict);
2369   ASSERT_TRUE(args_dict);
2370   EXPECT_TRUE(args_dict->GetString("float_infinity", &str_value));
2371   EXPECT_STREQ("Infinity", str_value.c_str());
2372   dict = FindNamePhase("event6b", "X");
2373   ASSERT_TRUE(dict);
2374   dict->GetDictionary("args", &args_dict);
2375   ASSERT_TRUE(args_dict);
2376   EXPECT_TRUE(args_dict->GetString("float_neg_infinity", &str_value));
2377   EXPECT_STREQ("-Infinity", str_value.c_str());
2378 
2379   // NaN is serialized to JSON as a string.
2380   dict = FindNamePhase("event7", "X");
2381   ASSERT_TRUE(dict);
2382   dict->GetDictionary("args", &args_dict);
2383   ASSERT_TRUE(args_dict);
2384   EXPECT_TRUE(args_dict->GetString("double_nan", &str_value));
2385   EXPECT_STREQ("NaN", str_value.c_str());
2386 
2387   // NULL pointers should be serialized as "0x0".
2388   dict = FindNamePhase("event8", "X");
2389   ASSERT_TRUE(dict);
2390   dict->GetDictionary("args", &args_dict);
2391   ASSERT_TRUE(args_dict);
2392   EXPECT_TRUE(args_dict->GetString("pointer_null", &str_value));
2393   EXPECT_STREQ("0x0", str_value.c_str());
2394 
2395   // Other pointers should be serlized as a hex string.
2396   dict = FindNamePhase("event9", "X");
2397   ASSERT_TRUE(dict);
2398   dict->GetDictionary("args", &args_dict);
2399   ASSERT_TRUE(args_dict);
2400   EXPECT_TRUE(args_dict->GetString("pointer_badf00d", &str_value));
2401   EXPECT_STREQ("0xbadf00d", str_value.c_str());
2402 
2403   dict = FindNamePhase("event10", "X");
2404   ASSERT_TRUE(dict);
2405   dict->GetDictionary("args", &args_dict);
2406   ASSERT_TRUE(args_dict);
2407   EXPECT_TRUE(args_dict->GetBoolean("bool_true", &bool_value));
2408   EXPECT_TRUE(bool_value);
2409 
2410   dict = FindNamePhase("event11", "X");
2411   ASSERT_TRUE(dict);
2412   dict->GetDictionary("args", &args_dict);
2413   ASSERT_TRUE(args_dict);
2414   EXPECT_TRUE(args_dict->GetBoolean("bool_false", &bool_value));
2415   EXPECT_FALSE(bool_value);
2416 
2417   dict = FindNamePhase("event12", "X");
2418   ASSERT_TRUE(dict);
2419   dict->GetDictionary("args", &args_dict);
2420   ASSERT_TRUE(args_dict);
2421   EXPECT_TRUE(args_dict->GetInteger("time_null", &int_value));
2422   EXPECT_EQ(0, int_value);
2423 
2424   dict = FindNamePhase("event13", "X");
2425   ASSERT_TRUE(dict);
2426   dict->GetDictionary("args", &args_dict);
2427   ASSERT_TRUE(args_dict);
2428   EXPECT_TRUE(args_dict->GetInteger("time_one", &int_value));
2429   EXPECT_EQ(1, int_value);
2430 
2431   dict = FindNamePhase("event14", "X");
2432   ASSERT_TRUE(dict);
2433   dict->GetDictionary("args", &args_dict);
2434   ASSERT_TRUE(args_dict);
2435   EXPECT_TRUE(args_dict->GetInteger("timeticks_null", &int_value));
2436   EXPECT_EQ(0, int_value);
2437 
2438   dict = FindNamePhase("event15", "X");
2439   ASSERT_TRUE(dict);
2440   dict->GetDictionary("args", &args_dict);
2441   ASSERT_TRUE(args_dict);
2442   EXPECT_TRUE(args_dict->GetInteger("timeticks_one", &int_value));
2443   EXPECT_EQ(1, int_value);
2444 }
2445 
TEST_F(TraceEventTestFixture,NameIsEscaped)2446 TEST_F(TraceEventTestFixture, NameIsEscaped) {
2447   TraceLog::GetInstance()->SetEnabled(TraceConfig(kRecordAllCategoryFilter, ""),
2448                                       TraceLog::RECORDING_MODE);
2449   TRACE_EVENT0("category", "name\\with\\backspaces");
2450   EndTraceAndFlush();
2451 
2452   EXPECT_TRUE(FindMatchingValue("cat", "category"));
2453   EXPECT_TRUE(FindMatchingValue("name", "name\\with\\backspaces"));
2454 }
2455 
2456 namespace {
2457 
IsArgNameWhitelisted(const char * arg_name)2458 bool IsArgNameWhitelisted(const char* arg_name) {
2459   return base::MatchPattern(arg_name, "granular_arg_whitelisted");
2460 }
2461 
IsTraceEventArgsWhitelisted(const char * category_group_name,const char * event_name,ArgumentNameFilterPredicate * arg_filter)2462 bool IsTraceEventArgsWhitelisted(const char* category_group_name,
2463                                  const char* event_name,
2464                                  ArgumentNameFilterPredicate* arg_filter) {
2465   if (base::MatchPattern(category_group_name, "toplevel") &&
2466       base::MatchPattern(event_name, "*")) {
2467     return true;
2468   }
2469 
2470   if (base::MatchPattern(category_group_name, "benchmark") &&
2471       base::MatchPattern(event_name, "granularly_whitelisted")) {
2472     *arg_filter = base::Bind(&IsArgNameWhitelisted);
2473     return true;
2474   }
2475 
2476   return false;
2477 }
2478 
2479 }  // namespace
2480 
TEST_F(TraceEventTestFixture,ArgsWhitelisting)2481 TEST_F(TraceEventTestFixture, ArgsWhitelisting) {
2482   TraceLog::GetInstance()->SetArgumentFilterPredicate(
2483       base::Bind(&IsTraceEventArgsWhitelisted));
2484 
2485   TraceLog::GetInstance()->SetEnabled(
2486     TraceConfig(kRecordAllCategoryFilter, "enable-argument-filter"),
2487     TraceLog::RECORDING_MODE);
2488 
2489   TRACE_EVENT1("toplevel", "event1", "int_one", 1);
2490   TRACE_EVENT1("whitewashed", "event2", "int_two", 1);
2491 
2492   TRACE_EVENT2("benchmark", "granularly_whitelisted",
2493                "granular_arg_whitelisted", "whitelisted_value",
2494                "granular_arg_blacklisted", "blacklisted_value");
2495 
2496   EndTraceAndFlush();
2497 
2498   const DictionaryValue* args_dict = nullptr;
2499   DictionaryValue* dict = nullptr;
2500   int int_value;
2501 
2502   dict = FindNamePhase("event1", "X");
2503   ASSERT_TRUE(dict);
2504   dict->GetDictionary("args", &args_dict);
2505   ASSERT_TRUE(args_dict);
2506   EXPECT_TRUE(args_dict->GetInteger("int_one", &int_value));
2507   EXPECT_EQ(1, int_value);
2508 
2509   dict = FindNamePhase("event2", "X");
2510   ASSERT_TRUE(dict);
2511   dict->GetDictionary("args", &args_dict);
2512   ASSERT_TRUE(args_dict);
2513   EXPECT_FALSE(args_dict->GetInteger("int_two", &int_value));
2514 
2515   std::string args_string;
2516   EXPECT_TRUE(dict->GetString("args", &args_string));
2517   EXPECT_EQ(args_string, "__stripped__");
2518 
2519   dict = FindNamePhase("granularly_whitelisted", "X");
2520   ASSERT_TRUE(dict);
2521   dict->GetDictionary("args", &args_dict);
2522   ASSERT_TRUE(args_dict);
2523 
2524   EXPECT_TRUE(args_dict->GetString("granular_arg_whitelisted", &args_string));
2525   EXPECT_EQ(args_string, "whitelisted_value");
2526 
2527   EXPECT_TRUE(args_dict->GetString("granular_arg_blacklisted", &args_string));
2528   EXPECT_EQ(args_string, "__stripped__");
2529 }
2530 
TEST_F(TraceEventTestFixture,TraceBufferVectorReportFull)2531 TEST_F(TraceEventTestFixture, TraceBufferVectorReportFull) {
2532   TraceLog* trace_log = TraceLog::GetInstance();
2533   trace_log->SetEnabled(
2534       TraceConfig(kRecordAllCategoryFilter, ""), TraceLog::RECORDING_MODE);
2535   trace_log->logged_events_.reset(
2536       TraceBuffer::CreateTraceBufferVectorOfSize(100));
2537   do {
2538     TRACE_EVENT_BEGIN_WITH_ID_TID_AND_TIMESTAMP0(
2539         "all", "with_timestamp", 0, 0, TimeTicks::Now());
2540     TRACE_EVENT_END_WITH_ID_TID_AND_TIMESTAMP0(
2541         "all", "with_timestamp", 0, 0, TimeTicks::Now());
2542   } while (!trace_log->BufferIsFull());
2543 
2544   EndTraceAndFlush();
2545 
2546   const DictionaryValue* trace_full_metadata = nullptr;
2547 
2548   trace_full_metadata = FindTraceEntry(trace_parsed_,
2549                                        "overflowed_at_ts");
2550   std::string phase;
2551   double buffer_limit_reached_timestamp = 0;
2552 
2553   EXPECT_TRUE(trace_full_metadata);
2554   EXPECT_TRUE(trace_full_metadata->GetString("ph", &phase));
2555   EXPECT_EQ("M", phase);
2556   EXPECT_TRUE(trace_full_metadata->GetDouble(
2557       "args.overflowed_at_ts", &buffer_limit_reached_timestamp));
2558   EXPECT_DOUBLE_EQ(
2559       static_cast<double>(
2560           trace_log->buffer_limit_reached_timestamp_.ToInternalValue()),
2561       buffer_limit_reached_timestamp);
2562 
2563   // Test that buffer_limit_reached_timestamp's value is between the timestamp
2564   // of the last trace event and current time.
2565   DropTracedMetadataRecords();
2566   const DictionaryValue* last_trace_event = nullptr;
2567   double last_trace_event_timestamp = 0;
2568   EXPECT_TRUE(trace_parsed_.GetDictionary(trace_parsed_.GetSize() - 1,
2569                                           &last_trace_event));
2570   EXPECT_TRUE(last_trace_event->GetDouble("ts", &last_trace_event_timestamp));
2571   EXPECT_LE(last_trace_event_timestamp, buffer_limit_reached_timestamp);
2572   EXPECT_LE(buffer_limit_reached_timestamp,
2573             trace_log->OffsetNow().ToInternalValue());
2574 }
2575 
TEST_F(TraceEventTestFixture,TraceBufferRingBufferGetReturnChunk)2576 TEST_F(TraceEventTestFixture, TraceBufferRingBufferGetReturnChunk) {
2577   TraceLog::GetInstance()->SetEnabled(
2578       TraceConfig(kRecordAllCategoryFilter, RECORD_CONTINUOUSLY),
2579       TraceLog::RECORDING_MODE);
2580   TraceBuffer* buffer = TraceLog::GetInstance()->trace_buffer();
2581   size_t capacity = buffer->Capacity();
2582   size_t num_chunks = capacity / TraceBufferChunk::kTraceBufferChunkSize;
2583   uint32_t last_seq = 0;
2584   size_t chunk_index;
2585   EXPECT_EQ(0u, buffer->Size());
2586 
2587   std::unique_ptr<TraceBufferChunk* []> chunks(
2588       new TraceBufferChunk*[num_chunks]);
2589   for (size_t i = 0; i < num_chunks; ++i) {
2590     chunks[i] = buffer->GetChunk(&chunk_index).release();
2591     EXPECT_TRUE(chunks[i]);
2592     EXPECT_EQ(i, chunk_index);
2593     EXPECT_GT(chunks[i]->seq(), last_seq);
2594     EXPECT_EQ((i + 1) * TraceBufferChunk::kTraceBufferChunkSize,
2595               buffer->Size());
2596     last_seq = chunks[i]->seq();
2597   }
2598 
2599   // Ring buffer is never full.
2600   EXPECT_FALSE(buffer->IsFull());
2601 
2602   // Return all chunks in original order.
2603   for (size_t i = 0; i < num_chunks; ++i)
2604     buffer->ReturnChunk(i, std::unique_ptr<TraceBufferChunk>(chunks[i]));
2605 
2606   // Should recycle the chunks in the returned order.
2607   for (size_t i = 0; i < num_chunks; ++i) {
2608     chunks[i] = buffer->GetChunk(&chunk_index).release();
2609     EXPECT_TRUE(chunks[i]);
2610     EXPECT_EQ(i, chunk_index);
2611     EXPECT_GT(chunks[i]->seq(), last_seq);
2612     last_seq = chunks[i]->seq();
2613   }
2614 
2615   // Return all chunks in reverse order.
2616   for (size_t i = 0; i < num_chunks; ++i) {
2617     buffer->ReturnChunk(num_chunks - i - 1, std::unique_ptr<TraceBufferChunk>(
2618                                                 chunks[num_chunks - i - 1]));
2619   }
2620 
2621   // Should recycle the chunks in the returned order.
2622   for (size_t i = 0; i < num_chunks; ++i) {
2623     chunks[i] = buffer->GetChunk(&chunk_index).release();
2624     EXPECT_TRUE(chunks[i]);
2625     EXPECT_EQ(num_chunks - i - 1, chunk_index);
2626     EXPECT_GT(chunks[i]->seq(), last_seq);
2627     last_seq = chunks[i]->seq();
2628   }
2629 
2630   for (size_t i = 0; i < num_chunks; ++i)
2631     buffer->ReturnChunk(i, std::unique_ptr<TraceBufferChunk>(chunks[i]));
2632 
2633   TraceLog::GetInstance()->SetDisabled();
2634 }
2635 
TEST_F(TraceEventTestFixture,TraceBufferRingBufferHalfIteration)2636 TEST_F(TraceEventTestFixture, TraceBufferRingBufferHalfIteration) {
2637   TraceLog::GetInstance()->SetEnabled(
2638       TraceConfig(kRecordAllCategoryFilter, RECORD_CONTINUOUSLY),
2639       TraceLog::RECORDING_MODE);
2640   TraceBuffer* buffer = TraceLog::GetInstance()->trace_buffer();
2641   size_t capacity = buffer->Capacity();
2642   size_t num_chunks = capacity / TraceBufferChunk::kTraceBufferChunkSize;
2643   size_t chunk_index;
2644   EXPECT_EQ(0u, buffer->Size());
2645   EXPECT_FALSE(buffer->NextChunk());
2646 
2647   size_t half_chunks = num_chunks / 2;
2648   std::unique_ptr<TraceBufferChunk* []> chunks(
2649       new TraceBufferChunk*[half_chunks]);
2650 
2651   for (size_t i = 0; i < half_chunks; ++i) {
2652     chunks[i] = buffer->GetChunk(&chunk_index).release();
2653     EXPECT_TRUE(chunks[i]);
2654     EXPECT_EQ(i, chunk_index);
2655   }
2656   for (size_t i = 0; i < half_chunks; ++i)
2657     buffer->ReturnChunk(i, std::unique_ptr<TraceBufferChunk>(chunks[i]));
2658 
2659   for (size_t i = 0; i < half_chunks; ++i)
2660     EXPECT_EQ(chunks[i], buffer->NextChunk());
2661   EXPECT_FALSE(buffer->NextChunk());
2662   TraceLog::GetInstance()->SetDisabled();
2663 }
2664 
TEST_F(TraceEventTestFixture,TraceBufferRingBufferFullIteration)2665 TEST_F(TraceEventTestFixture, TraceBufferRingBufferFullIteration) {
2666   TraceLog::GetInstance()->SetEnabled(
2667       TraceConfig(kRecordAllCategoryFilter, RECORD_CONTINUOUSLY),
2668       TraceLog::RECORDING_MODE);
2669   TraceBuffer* buffer = TraceLog::GetInstance()->trace_buffer();
2670   size_t capacity = buffer->Capacity();
2671   size_t num_chunks = capacity / TraceBufferChunk::kTraceBufferChunkSize;
2672   size_t chunk_index;
2673   EXPECT_EQ(0u, buffer->Size());
2674   EXPECT_FALSE(buffer->NextChunk());
2675 
2676   std::unique_ptr<TraceBufferChunk* []> chunks(
2677       new TraceBufferChunk*[num_chunks]);
2678 
2679   for (size_t i = 0; i < num_chunks; ++i) {
2680     chunks[i] = buffer->GetChunk(&chunk_index).release();
2681     EXPECT_TRUE(chunks[i]);
2682     EXPECT_EQ(i, chunk_index);
2683   }
2684   for (size_t i = 0; i < num_chunks; ++i)
2685     buffer->ReturnChunk(i, std::unique_ptr<TraceBufferChunk>(chunks[i]));
2686 
2687   for (size_t i = 0; i < num_chunks; ++i)
2688     EXPECT_TRUE(chunks[i] == buffer->NextChunk());
2689   EXPECT_FALSE(buffer->NextChunk());
2690   TraceLog::GetInstance()->SetDisabled();
2691 }
2692 
TEST_F(TraceEventTestFixture,TraceRecordAsMuchAsPossibleMode)2693 TEST_F(TraceEventTestFixture, TraceRecordAsMuchAsPossibleMode) {
2694   TraceLog::GetInstance()->SetEnabled(
2695     TraceConfig(kRecordAllCategoryFilter, RECORD_AS_MUCH_AS_POSSIBLE),
2696     TraceLog::RECORDING_MODE);
2697   TraceBuffer* buffer = TraceLog::GetInstance()->trace_buffer();
2698   EXPECT_EQ(512000000UL, buffer->Capacity());
2699   TraceLog::GetInstance()->SetDisabled();
2700 }
2701 
BlockUntilStopped(WaitableEvent * task_start_event,WaitableEvent * task_stop_event)2702 void BlockUntilStopped(WaitableEvent* task_start_event,
2703                        WaitableEvent* task_stop_event) {
2704   task_start_event->Signal();
2705   task_stop_event->Wait();
2706 }
2707 
TEST_F(TraceEventTestFixture,SetCurrentThreadBlocksMessageLoopBeforeTracing)2708 TEST_F(TraceEventTestFixture, SetCurrentThreadBlocksMessageLoopBeforeTracing) {
2709   BeginTrace();
2710 
2711   Thread thread("1");
2712   WaitableEvent task_complete_event(WaitableEvent::ResetPolicy::AUTOMATIC,
2713                                     WaitableEvent::InitialState::NOT_SIGNALED);
2714   thread.Start();
2715   thread.task_runner()->PostTask(
2716       FROM_HERE, BindOnce(&TraceLog::SetCurrentThreadBlocksMessageLoop,
2717                           Unretained(TraceLog::GetInstance())));
2718 
2719   thread.task_runner()->PostTask(
2720       FROM_HERE, BindOnce(&TraceWithAllMacroVariants, &task_complete_event));
2721   task_complete_event.Wait();
2722 
2723   WaitableEvent task_start_event(WaitableEvent::ResetPolicy::AUTOMATIC,
2724                                  WaitableEvent::InitialState::NOT_SIGNALED);
2725   WaitableEvent task_stop_event(WaitableEvent::ResetPolicy::AUTOMATIC,
2726                                 WaitableEvent::InitialState::NOT_SIGNALED);
2727   thread.task_runner()->PostTask(
2728       FROM_HERE,
2729       BindOnce(&BlockUntilStopped, &task_start_event, &task_stop_event));
2730   task_start_event.Wait();
2731 
2732   EndTraceAndFlush();
2733   ValidateAllTraceMacrosCreatedData(trace_parsed_);
2734 
2735   task_stop_event.Signal();
2736   thread.Stop();
2737 }
2738 
TEST_F(TraceEventTestFixture,ConvertTraceConfigToInternalOptions)2739 TEST_F(TraceEventTestFixture, ConvertTraceConfigToInternalOptions) {
2740   TraceLog* trace_log = TraceLog::GetInstance();
2741   EXPECT_EQ(TraceLog::kInternalRecordUntilFull,
2742             trace_log->GetInternalOptionsFromTraceConfig(
2743                 TraceConfig(kRecordAllCategoryFilter, RECORD_UNTIL_FULL)));
2744 
2745   EXPECT_EQ(TraceLog::kInternalRecordContinuously,
2746             trace_log->GetInternalOptionsFromTraceConfig(
2747                 TraceConfig(kRecordAllCategoryFilter, RECORD_CONTINUOUSLY)));
2748 
2749   EXPECT_EQ(TraceLog::kInternalEchoToConsole,
2750             trace_log->GetInternalOptionsFromTraceConfig(
2751                 TraceConfig(kRecordAllCategoryFilter, ECHO_TO_CONSOLE)));
2752 
2753   EXPECT_EQ(TraceLog::kInternalEchoToConsole,
2754             trace_log->GetInternalOptionsFromTraceConfig(
2755                 TraceConfig("*", "trace-to-console,enable-systrace")));
2756 }
2757 
SetBlockingFlagAndBlockUntilStopped(WaitableEvent * task_start_event,WaitableEvent * task_stop_event)2758 void SetBlockingFlagAndBlockUntilStopped(WaitableEvent* task_start_event,
2759                                          WaitableEvent* task_stop_event) {
2760   TraceLog::GetInstance()->SetCurrentThreadBlocksMessageLoop();
2761   BlockUntilStopped(task_start_event, task_stop_event);
2762 }
2763 
TEST_F(TraceEventTestFixture,SetCurrentThreadBlocksMessageLoopAfterTracing)2764 TEST_F(TraceEventTestFixture, SetCurrentThreadBlocksMessageLoopAfterTracing) {
2765   BeginTrace();
2766 
2767   Thread thread("1");
2768   WaitableEvent task_complete_event(WaitableEvent::ResetPolicy::AUTOMATIC,
2769                                     WaitableEvent::InitialState::NOT_SIGNALED);
2770   thread.Start();
2771 
2772   thread.task_runner()->PostTask(
2773       FROM_HERE, BindOnce(&TraceWithAllMacroVariants, &task_complete_event));
2774   task_complete_event.Wait();
2775 
2776   WaitableEvent task_start_event(WaitableEvent::ResetPolicy::AUTOMATIC,
2777                                  WaitableEvent::InitialState::NOT_SIGNALED);
2778   WaitableEvent task_stop_event(WaitableEvent::ResetPolicy::AUTOMATIC,
2779                                 WaitableEvent::InitialState::NOT_SIGNALED);
2780   thread.task_runner()->PostTask(FROM_HERE,
2781                                  BindOnce(&SetBlockingFlagAndBlockUntilStopped,
2782                                           &task_start_event, &task_stop_event));
2783   task_start_event.Wait();
2784 
2785   EndTraceAndFlush();
2786   ValidateAllTraceMacrosCreatedData(trace_parsed_);
2787 
2788   task_stop_event.Signal();
2789   thread.Stop();
2790 }
2791 
TEST_F(TraceEventTestFixture,ThreadOnceBlocking)2792 TEST_F(TraceEventTestFixture, ThreadOnceBlocking) {
2793   BeginTrace();
2794 
2795   Thread thread("1");
2796   WaitableEvent task_complete_event(WaitableEvent::ResetPolicy::AUTOMATIC,
2797                                     WaitableEvent::InitialState::NOT_SIGNALED);
2798   thread.Start();
2799 
2800   thread.task_runner()->PostTask(
2801       FROM_HERE, BindOnce(&TraceWithAllMacroVariants, &task_complete_event));
2802   task_complete_event.Wait();
2803 
2804   WaitableEvent task_start_event(WaitableEvent::ResetPolicy::AUTOMATIC,
2805                                  WaitableEvent::InitialState::NOT_SIGNALED);
2806   WaitableEvent task_stop_event(WaitableEvent::ResetPolicy::AUTOMATIC,
2807                                 WaitableEvent::InitialState::NOT_SIGNALED);
2808   thread.task_runner()->PostTask(
2809       FROM_HERE,
2810       BindOnce(&BlockUntilStopped, &task_start_event, &task_stop_event));
2811   task_start_event.Wait();
2812 
2813   // The thread will timeout in this flush.
2814   EndTraceAndFlushInThreadWithMessageLoop();
2815   Clear();
2816 
2817   // Let the thread's message loop continue to spin.
2818   task_stop_event.Signal();
2819 
2820   // The following sequence ensures that the FlushCurrentThread task has been
2821   // executed in the thread before continuing.
2822   thread.task_runner()->PostTask(
2823       FROM_HERE,
2824       BindOnce(&BlockUntilStopped, &task_start_event, &task_stop_event));
2825   task_start_event.Wait();
2826   task_stop_event.Signal();
2827   Clear();
2828 
2829   // TraceLog should discover the generation mismatch and recover the thread
2830   // local buffer for the thread without any error.
2831   BeginTrace();
2832   thread.task_runner()->PostTask(
2833       FROM_HERE, BindOnce(&TraceWithAllMacroVariants, &task_complete_event));
2834   task_complete_event.Wait();
2835   EndTraceAndFlushInThreadWithMessageLoop();
2836   ValidateAllTraceMacrosCreatedData(trace_parsed_);
2837 }
2838 
2839 std::string* g_log_buffer = nullptr;
MockLogMessageHandler(int,const char *,int,size_t,const std::string & str)2840 bool MockLogMessageHandler(int, const char*, int, size_t,
2841                            const std::string& str) {
2842   if (!g_log_buffer)
2843     g_log_buffer = new std::string();
2844   g_log_buffer->append(str);
2845   return false;
2846 }
2847 
TEST_F(TraceEventTestFixture,EchoToConsole)2848 TEST_F(TraceEventTestFixture, EchoToConsole) {
2849   logging::LogMessageHandlerFunction old_log_message_handler =
2850       logging::GetLogMessageHandler();
2851   logging::SetLogMessageHandler(MockLogMessageHandler);
2852 
2853   TraceLog::GetInstance()->SetEnabled(
2854       TraceConfig(kRecordAllCategoryFilter, ECHO_TO_CONSOLE),
2855       TraceLog::RECORDING_MODE);
2856   TRACE_EVENT_BEGIN0("a", "begin_end");
2857   {
2858     TRACE_EVENT0("b", "duration");
2859     TRACE_EVENT0("b1", "duration1");
2860   }
2861   TRACE_EVENT_INSTANT0("c", "instant", TRACE_EVENT_SCOPE_GLOBAL);
2862   TRACE_EVENT_END0("a", "begin_end");
2863 
2864   EXPECT_NE(std::string::npos, g_log_buffer->find("begin_end[a]\x1b"));
2865   EXPECT_NE(std::string::npos, g_log_buffer->find("| duration[b]\x1b"));
2866   EXPECT_NE(std::string::npos, g_log_buffer->find("| | duration1[b1]\x1b"));
2867   EXPECT_NE(std::string::npos, g_log_buffer->find("| | duration1[b1] ("));
2868   EXPECT_NE(std::string::npos, g_log_buffer->find("| duration[b] ("));
2869   EXPECT_NE(std::string::npos, g_log_buffer->find("| instant[c]\x1b"));
2870   EXPECT_NE(std::string::npos, g_log_buffer->find("begin_end[a] ("));
2871 
2872   EndTraceAndFlush();
2873   delete g_log_buffer;
2874   logging::SetLogMessageHandler(old_log_message_handler);
2875   g_log_buffer = nullptr;
2876 }
2877 
LogMessageHandlerWithTraceEvent(int,const char *,int,size_t,const std::string &)2878 bool LogMessageHandlerWithTraceEvent(int, const char*, int, size_t,
2879                                      const std::string&) {
2880   TRACE_EVENT0("log", "trace_event");
2881   return false;
2882 }
2883 
TEST_F(TraceEventTestFixture,EchoToConsoleTraceEventRecursion)2884 TEST_F(TraceEventTestFixture, EchoToConsoleTraceEventRecursion) {
2885   logging::LogMessageHandlerFunction old_log_message_handler =
2886       logging::GetLogMessageHandler();
2887   logging::SetLogMessageHandler(LogMessageHandlerWithTraceEvent);
2888 
2889   TraceLog::GetInstance()->SetEnabled(
2890       TraceConfig(kRecordAllCategoryFilter, ECHO_TO_CONSOLE),
2891       TraceLog::RECORDING_MODE);
2892   {
2893     // This should not cause deadlock or infinite recursion.
2894     TRACE_EVENT0("b", "duration");
2895   }
2896 
2897   EndTraceAndFlush();
2898   logging::SetLogMessageHandler(old_log_message_handler);
2899 }
2900 
TEST_F(TraceEventTestFixture,TimeOffset)2901 TEST_F(TraceEventTestFixture, TimeOffset) {
2902   BeginTrace();
2903   // Let TraceLog timer start from 0.
2904   TimeDelta time_offset = TimeTicks::Now() - TimeTicks();
2905   TraceLog::GetInstance()->SetTimeOffset(time_offset);
2906 
2907   {
2908     TRACE_EVENT0("all", "duration1");
2909     TRACE_EVENT0("all", "duration2");
2910   }
2911   TRACE_EVENT_BEGIN_WITH_ID_TID_AND_TIMESTAMP0(
2912       "all", "with_timestamp", 0, 0, TimeTicks::Now());
2913   TRACE_EVENT_END_WITH_ID_TID_AND_TIMESTAMP0(
2914       "all", "with_timestamp", 0, 0, TimeTicks::Now());
2915 
2916   EndTraceAndFlush();
2917   DropTracedMetadataRecords();
2918 
2919   double end_time = static_cast<double>(
2920       (TimeTicks::Now() - time_offset).ToInternalValue());
2921   double last_timestamp = 0;
2922   for (size_t i = 0; i < trace_parsed_.GetSize(); ++i) {
2923     const DictionaryValue* item;
2924     EXPECT_TRUE(trace_parsed_.GetDictionary(i, &item));
2925     double timestamp;
2926     EXPECT_TRUE(item->GetDouble("ts", &timestamp));
2927     EXPECT_GE(timestamp, last_timestamp);
2928     EXPECT_LE(timestamp, end_time);
2929     last_timestamp = timestamp;
2930   }
2931 }
2932 
TEST_F(TraceEventTestFixture,TraceFilteringMode)2933 TEST_F(TraceEventTestFixture, TraceFilteringMode) {
2934   const char config_json[] =
2935       "{"
2936       "  \"event_filters\": ["
2937       "     {"
2938       "       \"filter_predicate\": \"testing_predicate\", "
2939       "       \"included_categories\": [\"*\"]"
2940       "     }"
2941       "  ]"
2942       "}";
2943 
2944   // Run RECORDING_MODE within FILTERING_MODE:
2945   TestEventFilter::HitsCounter filter_hits_counter;
2946   TestEventFilter::set_filter_return_value(true);
2947   TraceLog::GetInstance()->SetFilterFactoryForTesting(TestEventFilter::Factory);
2948 
2949   // Only filtering mode is enabled with test filters.
2950   TraceLog::GetInstance()->SetEnabled(TraceConfig(config_json),
2951                                       TraceLog::FILTERING_MODE);
2952   EXPECT_EQ(TraceLog::FILTERING_MODE, TraceLog::GetInstance()->enabled_modes());
2953   {
2954     void* ptr = this;
2955     TRACE_EVENT0("c0", "name0");
2956     TRACE_EVENT_ASYNC_BEGIN0("c1", "name1", ptr);
2957     TRACE_EVENT_INSTANT0("c0", "name0", TRACE_EVENT_SCOPE_THREAD);
2958     TRACE_EVENT_ASYNC_END0("c1", "name1", ptr);
2959   }
2960 
2961   // Recording mode is enabled when filtering mode is turned on.
2962   TraceLog::GetInstance()->SetEnabled(TraceConfig("", ""),
2963                                       TraceLog::RECORDING_MODE);
2964   EXPECT_EQ(TraceLog::RECORDING_MODE | TraceLog::FILTERING_MODE,
2965             TraceLog::GetInstance()->enabled_modes());
2966   {
2967     TRACE_EVENT0("c2", "name2");
2968   }
2969   // Only recording mode is disabled and filtering mode will continue to run.
2970   TraceLog::GetInstance()->SetDisabled(TraceLog::RECORDING_MODE);
2971   EXPECT_EQ(TraceLog::FILTERING_MODE, TraceLog::GetInstance()->enabled_modes());
2972 
2973   {
2974     TRACE_EVENT0("c0", "name0");
2975   }
2976   // Filtering mode is disabled and no tracing mode should be enabled.
2977   TraceLog::GetInstance()->SetDisabled(TraceLog::FILTERING_MODE);
2978   EXPECT_EQ(0, TraceLog::GetInstance()->enabled_modes());
2979 
2980   EndTraceAndFlush();
2981   EXPECT_FALSE(FindMatchingValue("cat", "c0"));
2982   EXPECT_FALSE(FindMatchingValue("cat", "c1"));
2983   EXPECT_FALSE(FindMatchingValue("name", "name0"));
2984   EXPECT_FALSE(FindMatchingValue("name", "name1"));
2985   EXPECT_TRUE(FindMatchingValue("cat", "c2"));
2986   EXPECT_TRUE(FindMatchingValue("name", "name2"));
2987   EXPECT_EQ(6u, filter_hits_counter.filter_trace_event_hit_count);
2988   EXPECT_EQ(3u, filter_hits_counter.end_event_hit_count);
2989   Clear();
2990   filter_hits_counter.Reset();
2991 
2992   // Run FILTERING_MODE within RECORDING_MODE:
2993   // Only recording mode is enabled and all events must be recorded.
2994   TraceLog::GetInstance()->SetEnabled(TraceConfig("", ""),
2995                                       TraceLog::RECORDING_MODE);
2996   EXPECT_EQ(TraceLog::RECORDING_MODE, TraceLog::GetInstance()->enabled_modes());
2997   {
2998     TRACE_EVENT0("c0", "name0");
2999   }
3000 
3001   // Filtering mode is also enabled and all events must be filtered-out.
3002   TestEventFilter::set_filter_return_value(false);
3003   TraceLog::GetInstance()->SetEnabled(TraceConfig(config_json),
3004                                       TraceLog::FILTERING_MODE);
3005   EXPECT_EQ(TraceLog::RECORDING_MODE | TraceLog::FILTERING_MODE,
3006             TraceLog::GetInstance()->enabled_modes());
3007   {
3008     TRACE_EVENT0("c1", "name1");
3009   }
3010   // Only filtering mode is disabled and recording mode should continue to run
3011   // with all events being recorded.
3012   TraceLog::GetInstance()->SetDisabled(TraceLog::FILTERING_MODE);
3013   EXPECT_EQ(TraceLog::RECORDING_MODE, TraceLog::GetInstance()->enabled_modes());
3014 
3015   {
3016     TRACE_EVENT0("c2", "name2");
3017   }
3018   // Recording mode is disabled and no tracing mode should be enabled.
3019   TraceLog::GetInstance()->SetDisabled(TraceLog::RECORDING_MODE);
3020   EXPECT_EQ(0, TraceLog::GetInstance()->enabled_modes());
3021 
3022   EndTraceAndFlush();
3023   EXPECT_TRUE(FindMatchingValue("cat", "c0"));
3024   EXPECT_TRUE(FindMatchingValue("cat", "c2"));
3025   EXPECT_TRUE(FindMatchingValue("name", "name0"));
3026   EXPECT_TRUE(FindMatchingValue("name", "name2"));
3027   EXPECT_FALSE(FindMatchingValue("cat", "c1"));
3028   EXPECT_FALSE(FindMatchingValue("name", "name1"));
3029   EXPECT_EQ(1u, filter_hits_counter.filter_trace_event_hit_count);
3030   EXPECT_EQ(1u, filter_hits_counter.end_event_hit_count);
3031   Clear();
3032 }
3033 
TEST_F(TraceEventTestFixture,EventFiltering)3034 TEST_F(TraceEventTestFixture, EventFiltering) {
3035   const char config_json[] =
3036       "{"
3037       "  \"included_categories\": ["
3038       "    \"filtered_cat\","
3039       "    \"unfiltered_cat\","
3040       "    \"" TRACE_DISABLED_BY_DEFAULT("filtered_cat") "\","
3041       "    \"" TRACE_DISABLED_BY_DEFAULT("unfiltered_cat") "\"],"
3042       "  \"event_filters\": ["
3043       "     {"
3044       "       \"filter_predicate\": \"testing_predicate\", "
3045       "       \"included_categories\": ["
3046       "         \"filtered_cat\","
3047       "         \"" TRACE_DISABLED_BY_DEFAULT("filtered_cat") "\"]"
3048       "     }"
3049       "    "
3050       "  ]"
3051       "}";
3052 
3053   TestEventFilter::HitsCounter filter_hits_counter;
3054   TestEventFilter::set_filter_return_value(true);
3055   TraceLog::GetInstance()->SetFilterFactoryForTesting(TestEventFilter::Factory);
3056 
3057   TraceConfig trace_config(config_json);
3058   TraceLog::GetInstance()->SetEnabled(
3059       trace_config, TraceLog::RECORDING_MODE | TraceLog::FILTERING_MODE);
3060   ASSERT_TRUE(TraceLog::GetInstance()->IsEnabled());
3061 
3062   TRACE_EVENT0("filtered_cat", "a snake");
3063   TRACE_EVENT0("filtered_cat", "a mushroom");
3064   TRACE_EVENT0("unfiltered_cat", "a horse");
3065 
3066   TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("filtered_cat"), "a dog");
3067   TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("unfiltered_cat"), "a pony");
3068 
3069   // This is scoped so we can test the end event being filtered.
3070   { TRACE_EVENT0("filtered_cat", "another cat whoa"); }
3071 
3072   EndTraceAndFlush();
3073 
3074   EXPECT_EQ(4u, filter_hits_counter.filter_trace_event_hit_count);
3075   EXPECT_EQ(1u, filter_hits_counter.end_event_hit_count);
3076 }
3077 
TEST_F(TraceEventTestFixture,EventWhitelistFiltering)3078 TEST_F(TraceEventTestFixture, EventWhitelistFiltering) {
3079   std::string config_json = StringPrintf(
3080       "{"
3081       "  \"included_categories\": ["
3082       "    \"filtered_cat\","
3083       "    \"unfiltered_cat\","
3084       "    \"" TRACE_DISABLED_BY_DEFAULT("filtered_cat") "\"],"
3085       "  \"event_filters\": ["
3086       "     {"
3087       "       \"filter_predicate\": \"%s\", "
3088       "       \"included_categories\": ["
3089       "         \"filtered_cat\","
3090       "         \"" TRACE_DISABLED_BY_DEFAULT("*") "\"], "
3091       "       \"filter_args\": {"
3092       "           \"event_name_whitelist\": [\"a snake\", \"a dog\"]"
3093       "         }"
3094       "     }"
3095       "    "
3096       "  ]"
3097       "}",
3098       EventNameFilter::kName);
3099 
3100   TraceConfig trace_config(config_json);
3101   TraceLog::GetInstance()->SetEnabled(
3102       trace_config, TraceLog::RECORDING_MODE | TraceLog::FILTERING_MODE);
3103   EXPECT_TRUE(TraceLog::GetInstance()->IsEnabled());
3104 
3105   TRACE_EVENT0("filtered_cat", "a snake");
3106   TRACE_EVENT0("filtered_cat", "a mushroom");
3107   TRACE_EVENT0("unfiltered_cat", "a cat");
3108   TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("filtered_cat"), "a dog");
3109   TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("filtered_cat"), "a pony");
3110 
3111   EndTraceAndFlush();
3112 
3113   EXPECT_TRUE(FindMatchingValue("name", "a snake"));
3114   EXPECT_FALSE(FindMatchingValue("name", "a mushroom"));
3115   EXPECT_TRUE(FindMatchingValue("name", "a cat"));
3116   EXPECT_TRUE(FindMatchingValue("name", "a dog"));
3117   EXPECT_FALSE(FindMatchingValue("name", "a pony"));
3118 }
3119 
TEST_F(TraceEventTestFixture,HeapProfilerFiltering)3120 TEST_F(TraceEventTestFixture, HeapProfilerFiltering) {
3121   std::string config_json = StringPrintf(
3122       "{"
3123       "  \"included_categories\": ["
3124       "    \"filtered_cat\","
3125       "    \"unfiltered_cat\","
3126       "    \"" TRACE_DISABLED_BY_DEFAULT("filtered_cat") "\","
3127       "    \"" TRACE_DISABLED_BY_DEFAULT("unfiltered_cat") "\"],"
3128       "  \"excluded_categories\": [\"excluded_cat\"],"
3129       "  \"event_filters\": ["
3130       "     {"
3131       "       \"filter_predicate\": \"%s\", "
3132       "       \"included_categories\": ["
3133       "         \"*\","
3134       "         \"" TRACE_DISABLED_BY_DEFAULT("filtered_cat") "\"]"
3135       "     }"
3136       "  ]"
3137       "}",
3138       HeapProfilerEventFilter::kName);
3139 
3140   TraceConfig trace_config(config_json);
3141   TraceLog::GetInstance()->SetEnabled(
3142       trace_config, TraceLog::RECORDING_MODE | TraceLog::FILTERING_MODE);
3143   EXPECT_TRUE(TraceLog::GetInstance()->IsEnabled());
3144 
3145   TRACE_EVENT0("filtered_cat", "a snake");
3146   TRACE_EVENT0("excluded_cat", "a mushroom");
3147   TRACE_EVENT0("unfiltered_cat", "a cat");
3148   TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("filtered_cat"), "a dog");
3149   TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("unfiltered_cat"), "a pony");
3150 
3151   EndTraceAndFlush();
3152 
3153   // The predicate should not change behavior of the trace events.
3154   EXPECT_TRUE(FindMatchingValue("name", "a snake"));
3155   EXPECT_FALSE(FindMatchingValue("name", "a mushroom"));
3156   EXPECT_TRUE(FindMatchingValue("name", "a cat"));
3157   EXPECT_TRUE(FindMatchingValue("name", "a dog"));
3158   EXPECT_TRUE(FindMatchingValue("name", "a pony"));
3159 }
3160 
TEST_F(TraceEventTestFixture,ClockSyncEventsAreAlwaysAddedToTrace)3161 TEST_F(TraceEventTestFixture, ClockSyncEventsAreAlwaysAddedToTrace) {
3162   BeginSpecificTrace("-*");
3163   TRACE_EVENT_CLOCK_SYNC_RECEIVER(1);
3164   EndTraceAndFlush();
3165   EXPECT_TRUE(FindNamePhase("clock_sync", "c"));
3166 }
3167 
3168 }  // namespace trace_event
3169 }  // namespace base
3170