cd97b2b943
The test was heavily dependent on wall clock timing, so it ended up being disabled in some build configurations. This CL switches it to use a fake clock instead. BUG=webrtc:5947 Review-Url: https://codereview.webrtc.org/2392613003 Cr-Commit-Position: refs/heads/master@{#14507}
116 lines
3.7 KiB
C++
116 lines
3.7 KiB
C++
/*
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* Copyright 2004 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/base/fakeclock.h"
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#include "webrtc/base/gunit.h"
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#include "webrtc/base/profiler.h"
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#include "webrtc/base/timedelta.h"
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#include "webrtc/base/thread.h"
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namespace {
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const int kWaitMs = 250;
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const double kWaitSec = 0.250;
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const char* TestFunc(rtc::FakeClock* clock) {
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PROFILE_F();
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clock->AdvanceTime(rtc::TimeDelta::FromMilliseconds(kWaitMs));
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return __FUNCTION__;
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}
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} // namespace
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namespace rtc {
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TEST(ProfilerTest, TestFunction) {
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rtc::ScopedFakeClock fake_clock;
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ASSERT_TRUE(Profiler::Instance()->Clear());
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// Profile a long-running function.
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const char* function_name = TestFunc(&fake_clock);
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const ProfilerEvent* event = Profiler::Instance()->GetEvent(function_name);
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ASSERT_TRUE(event != NULL);
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EXPECT_FALSE(event->is_started());
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EXPECT_EQ(1, event->event_count());
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EXPECT_EQ(kWaitSec, event->mean());
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// Run it a second time.
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TestFunc(&fake_clock);
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EXPECT_FALSE(event->is_started());
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EXPECT_EQ(2, event->event_count());
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EXPECT_EQ(kWaitSec, event->mean());
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EXPECT_EQ(kWaitSec * 2, event->total_time());
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EXPECT_DOUBLE_EQ(event->mean(), event->total_time() / event->event_count());
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}
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TEST(ProfilerTest, TestScopedEvents) {
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rtc::ScopedFakeClock fake_clock;
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const std::string kEvent1Name = "Event 1";
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const std::string kEvent2Name = "Event 2";
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const int kEvent2WaitMs = 150;
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const double kEvent2WaitSec = 0.150;
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const ProfilerEvent* event1;
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const ProfilerEvent* event2;
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ASSERT_TRUE(Profiler::Instance()->Clear());
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{ // Profile a scope.
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PROFILE(kEvent1Name);
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event1 = Profiler::Instance()->GetEvent(kEvent1Name);
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ASSERT_TRUE(event1 != NULL);
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EXPECT_TRUE(event1->is_started());
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EXPECT_EQ(0, event1->event_count());
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fake_clock.AdvanceTime(rtc::TimeDelta::FromMilliseconds(kWaitMs));
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EXPECT_TRUE(event1->is_started());
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}
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// Check the result.
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EXPECT_FALSE(event1->is_started());
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EXPECT_EQ(1, event1->event_count());
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EXPECT_EQ(kWaitSec, event1->mean());
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{ // Profile a second event.
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PROFILE(kEvent2Name);
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event2 = Profiler::Instance()->GetEvent(kEvent2Name);
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ASSERT_TRUE(event2 != NULL);
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EXPECT_FALSE(event1->is_started());
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EXPECT_TRUE(event2->is_started());
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fake_clock.AdvanceTime(rtc::TimeDelta::FromMilliseconds(kEvent2WaitMs));
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}
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// Check the result.
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EXPECT_FALSE(event2->is_started());
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EXPECT_EQ(1, event2->event_count());
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EXPECT_EQ(kEvent2WaitSec, event2->mean());
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// Make sure event1 is unchanged.
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EXPECT_FALSE(event1->is_started());
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EXPECT_EQ(1, event1->event_count());
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{ // Run another event 1.
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PROFILE(kEvent1Name);
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EXPECT_TRUE(event1->is_started());
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fake_clock.AdvanceTime(rtc::TimeDelta::FromMilliseconds(kWaitMs));
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}
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// Check the result.
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EXPECT_FALSE(event1->is_started());
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EXPECT_EQ(2, event1->event_count());
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EXPECT_EQ(kWaitSec, event1->mean());
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EXPECT_EQ(kWaitSec * 2, event1->total_time());
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EXPECT_DOUBLE_EQ(event1->mean(),
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event1->total_time() / event1->event_count());
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}
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TEST(ProfilerTest, Clear) {
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ASSERT_TRUE(Profiler::Instance()->Clear());
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PROFILE_START("event");
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EXPECT_FALSE(Profiler::Instance()->Clear());
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EXPECT_TRUE(Profiler::Instance()->GetEvent("event") != NULL);
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PROFILE_STOP("event");
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EXPECT_TRUE(Profiler::Instance()->Clear());
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EXPECT_EQ(NULL, Profiler::Instance()->GetEvent("event"));
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}
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} // namespace rtc
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