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| 1 /* | |
| 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #include "webrtc/base/event_tracer.h" | |
| 12 | |
| 13 #include "webrtc/base/trace_event.h" | |
| 14 #include "webrtc/system_wrappers/include/static_instance.h" | |
| 15 #include "webrtc/test/gtest.h" | |
| 16 | |
| 17 namespace { | |
| 18 | |
| 19 class TestStatistics { | |
| 20 public: | |
| 21 TestStatistics() : events_logged_(0) { | |
| 22 } | |
| 23 | |
| 24 void Reset() { | |
| 25 events_logged_ = 0; | |
| 26 } | |
| 27 | |
| 28 void Increment() { | |
| 29 ++events_logged_; | |
| 30 } | |
| 31 | |
| 32 int Count() const { return events_logged_; } | |
| 33 | |
| 34 static TestStatistics* Get() { | |
| 35 static TestStatistics* test_stats = nullptr; | |
| 36 if (!test_stats) | |
| 37 test_stats = new TestStatistics(); | |
| 38 return test_stats; | |
| 39 } | |
| 40 | |
| 41 private: | |
| 42 int events_logged_; | |
| 43 }; | |
| 44 | |
| 45 static const unsigned char* GetCategoryEnabledHandler(const char* name) { | |
| 46 return reinterpret_cast<const unsigned char*>("test"); | |
| 47 } | |
| 48 | |
| 49 static void AddTraceEventHandler(char phase, | |
| 50 const unsigned char* category_enabled, | |
| 51 const char* name, | |
| 52 unsigned long long id, | |
| 53 int num_args, | |
| 54 const char** arg_names, | |
| 55 const unsigned char* arg_types, | |
| 56 const unsigned long long* arg_values, | |
| 57 unsigned char flags) { | |
| 58 TestStatistics::Get()->Increment(); | |
| 59 } | |
| 60 | |
| 61 } // namespace | |
| 62 | |
| 63 namespace webrtc { | |
| 64 | |
| 65 TEST(EventTracerTest, EventTracerDisabled) { | |
| 66 { | |
| 67 TRACE_EVENT0("test", "EventTracerDisabled"); | |
| 68 } | |
| 69 EXPECT_FALSE(TestStatistics::Get()->Count()); | |
| 70 TestStatistics::Get()->Reset(); | |
| 71 } | |
| 72 | |
| 73 TEST(EventTracerTest, ScopedTraceEvent) { | |
| 74 SetupEventTracer(&GetCategoryEnabledHandler, &AddTraceEventHandler); | |
| 75 { | |
| 76 TRACE_EVENT0("test", "ScopedTraceEvent"); | |
| 77 } | |
| 78 EXPECT_EQ(2, TestStatistics::Get()->Count()); | |
| 79 TestStatistics::Get()->Reset(); | |
| 80 } | |
| 81 | |
| 82 } // namespace webrtc | |
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