blob: 8f4421e9e91849d40ec3ca82da3a5c6b760665a5 [file] [log] [blame]
/*
* Copyright 2004 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "webrtc/base/gunit.h"
#include "webrtc/base/profiler.h"
#include "webrtc/base/thread.h"
namespace {
const int kWaitMs = 250;
const double kWaitSec = 0.250;
const double kTolerance = 0.1;
const char* TestFunc() {
PROFILE_F();
rtc::Thread::SleepMs(kWaitMs);
return __FUNCTION__;
}
} // namespace
namespace rtc {
TEST(ProfilerTest, TestFunction) {
ASSERT_TRUE(Profiler::Instance()->Clear());
// Profile a long-running function.
const char* function_name = TestFunc();
const ProfilerEvent* event = Profiler::Instance()->GetEvent(function_name);
ASSERT_TRUE(event != NULL);
EXPECT_FALSE(event->is_started());
EXPECT_EQ(1, event->event_count());
EXPECT_NEAR(kWaitSec, event->mean(), kTolerance * 3);
// Run it a second time.
TestFunc();
EXPECT_FALSE(event->is_started());
EXPECT_EQ(2, event->event_count());
EXPECT_NEAR(kWaitSec, event->mean(), kTolerance);
EXPECT_NEAR(kWaitSec * 2, event->total_time(), kTolerance * 2);
EXPECT_DOUBLE_EQ(event->mean(), event->total_time() / event->event_count());
}
TEST(ProfilerTest, TestScopedEvents) {
const std::string kEvent1Name = "Event 1";
const std::string kEvent2Name = "Event 2";
const int kEvent2WaitMs = 150;
const double kEvent2WaitSec = 0.150;
const ProfilerEvent* event1;
const ProfilerEvent* event2;
ASSERT_TRUE(Profiler::Instance()->Clear());
{ // Profile a scope.
PROFILE(kEvent1Name);
event1 = Profiler::Instance()->GetEvent(kEvent1Name);
ASSERT_TRUE(event1 != NULL);
EXPECT_TRUE(event1->is_started());
EXPECT_EQ(0, event1->event_count());
rtc::Thread::SleepMs(kWaitMs);
EXPECT_TRUE(event1->is_started());
}
// Check the result.
EXPECT_FALSE(event1->is_started());
EXPECT_EQ(1, event1->event_count());
EXPECT_NEAR(kWaitSec, event1->mean(), kTolerance);
{ // Profile a second event.
PROFILE(kEvent2Name);
event2 = Profiler::Instance()->GetEvent(kEvent2Name);
ASSERT_TRUE(event2 != NULL);
EXPECT_FALSE(event1->is_started());
EXPECT_TRUE(event2->is_started());
rtc::Thread::SleepMs(kEvent2WaitMs);
}
// Check the result.
EXPECT_FALSE(event2->is_started());
EXPECT_EQ(1, event2->event_count());
// The difference here can be as much as 0.33, so we need high tolerance.
EXPECT_NEAR(kEvent2WaitSec, event2->mean(), kTolerance * 4);
// Make sure event1 is unchanged.
EXPECT_FALSE(event1->is_started());
EXPECT_EQ(1, event1->event_count());
{ // Run another event 1.
PROFILE(kEvent1Name);
EXPECT_TRUE(event1->is_started());
rtc::Thread::SleepMs(kWaitMs);
}
// Check the result.
EXPECT_FALSE(event1->is_started());
EXPECT_EQ(2, event1->event_count());
EXPECT_NEAR(kWaitSec, event1->mean(), kTolerance);
EXPECT_NEAR(kWaitSec * 2, event1->total_time(), kTolerance * 2);
EXPECT_DOUBLE_EQ(event1->mean(),
event1->total_time() / event1->event_count());
}
TEST(ProfilerTest, Clear) {
ASSERT_TRUE(Profiler::Instance()->Clear());
PROFILE_START("event");
EXPECT_FALSE(Profiler::Instance()->Clear());
EXPECT_TRUE(Profiler::Instance()->GetEvent("event") != NULL);
PROFILE_STOP("event");
EXPECT_TRUE(Profiler::Instance()->Clear());
EXPECT_EQ(NULL, Profiler::Instance()->GetEvent("event"));
}
} // namespace rtc