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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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