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 "testing/gtest/include/gtest/gtest.h"
14 #include "webrtc/base/trace_event.h"
15 #include "webrtc/system_wrappers/include/static_instance.h"
16
17 namespace {
18
19 class TestStatistics {
20 public:
TestStatistics()21 TestStatistics() : events_logged_(0) {
22 }
23
Reset()24 void Reset() {
25 events_logged_ = 0;
26 }
27
Increment()28 void Increment() {
29 ++events_logged_;
30 }
31
Count() const32 int Count() const { return events_logged_; }
33
Get()34 static TestStatistics* Get() {
35 static TestStatistics* test_stats = NULL;
36 if (!test_stats)
37 test_stats = new TestStatistics();
38 return test_stats;
39 }
40
41 private:
42 int events_logged_;
43 };
44
GetCategoryEnabledHandler(const char * name)45 static const unsigned char* GetCategoryEnabledHandler(const char* name) {
46 return reinterpret_cast<const unsigned char*>("test");
47 }
48
AddTraceEventHandler(char phase,const unsigned char * category_enabled,const char * name,unsigned long long id,int num_args,const char ** arg_names,const unsigned char * arg_types,const unsigned long long * arg_values,unsigned char flags)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
TEST(EventTracerTest,EventTracerDisabled)65 TEST(EventTracerTest, EventTracerDisabled) {
66 {
67 TRACE_EVENT0("test", "EventTracerDisabled");
68 }
69 EXPECT_FALSE(TestStatistics::Get()->Count());
70 TestStatistics::Get()->Reset();
71 }
72
TEST(EventTracerTest,ScopedTraceEvent)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
83