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/*
* libjingle
* Copyright 2004--2013, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "talk/base/gunit.h"
#include "talk/base/profiler.h"
#include "talk/base/thread.h"
namespace {
const int kWaitMs = 250;
const double kWaitSec = 0.250;
const double kTolerance = 0.1;
const char* TestFunc() {
PROFILE_F();
talk_base::Thread::SleepMs(kWaitMs);
return __FUNCTION__;
}
} // namespace
namespace talk_base {
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);
// 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());
talk_base::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());
talk_base::Thread::SleepMs(kEvent2WaitMs);
}
// Check the result.
EXPECT_FALSE(event2->is_started());
EXPECT_EQ(1, event2->event_count());
EXPECT_NEAR(kEvent2WaitSec, event2->mean(), kTolerance);
// 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());
talk_base::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 talk_base
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