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// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/idle_timer.h"
#include "base/message_loop.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
class IdleTimerTest : public testing::Test {
};
};
// We Mock the GetLastInputInfo function to return
// the time stored here.
static DWORD mock_idle_time = GetTickCount();
BOOL __stdcall MockGetLastInputInfoFunction(PLASTINPUTINFO plii) {
DCHECK(plii->cbSize == sizeof(LASTINPUTINFO));
plii->dwTime = mock_idle_time;
return TRUE;
}
// TestIdle task fires after 100ms of idle time.
class TestIdleTask : public IdleTimerTask {
public:
TestIdleTask(bool repeat)
: IdleTimerTask(TimeDelta::FromMilliseconds(100), repeat),
idle_counter_(0) {
set_last_input_info_fn(MockGetLastInputInfoFunction);
}
int get_idle_counter() { return idle_counter_; }
virtual void OnIdle() {
idle_counter_++;
}
private:
int idle_counter_;
};
// A task to help us quit the test.
class TestFinishedTask : public Task {
public:
TestFinishedTask() {}
void Run() {
MessageLoop::current()->Quit();
}
};
// A timer which resets the idle clock.
class ResetIdleTask : public Task {
public:
ResetIdleTask() {}
void Run() {
mock_idle_time = GetTickCount();
}
};
///////////////////////////////////////////////////////////////////////////////
// NoRepeat tests:
// A non-repeating idle timer will fire once on idle, and
// then will not fire again unless it goes non-idle first.
TEST(IdleTimerTest, NoRepeatIdle) {
// Create an IdleTimer, which should fire once after 100ms.
// Create a Quit timer which will fire after 1s.
// Verify that we fired exactly once.
mock_idle_time = GetTickCount();
TestIdleTask test_task(false);
TestFinishedTask finish_task;
MessageLoop* loop = MessageLoop::current();
Timer* t = loop->timer_manager()->StartTimer(1000, &finish_task, false);
test_task.Start();
loop->Run();
EXPECT_EQ(test_task.get_idle_counter(), 1);
delete t;
}
TEST(IdleTimerTest, NoRepeatFlipIdleOnce) {
// Create an IdleTimer, which should fire once after 100ms.
// Create a Quit timer which will fire after 1s.
// Create a timer to reset once, idle after 500ms.
// Verify that we fired exactly twice.
mock_idle_time = GetTickCount();
TestIdleTask test_task(false);
TestFinishedTask finish_task;
ResetIdleTask reset_task;
MessageLoop* loop = MessageLoop::current();
Timer* t1 = loop->timer_manager()->StartTimer(1000, &finish_task, false);
Timer* t2 = loop->timer_manager()->StartTimer(500, &reset_task, false);
test_task.Start();
loop->Run();
EXPECT_EQ(test_task.get_idle_counter(), 2);
delete t1;
delete t2;
}
TEST(IdleTimerTest, NoRepeatNotIdle) {
// Create an IdleTimer, which should fire once after 100ms.
// Create a Quit timer which will fire after 1s.
// Create a timer to reset idle every 50ms.
// Verify that we never fired.
mock_idle_time = GetTickCount();
TestIdleTask test_task(false);
TestFinishedTask finish_task;
ResetIdleTask reset_task;
MessageLoop* loop = MessageLoop::current();
Timer* t = loop->timer_manager()->StartTimer(1000, &finish_task, false);
Timer* reset_timer = loop->timer_manager()->StartTimer(50, &reset_task, true);
test_task.Start();
loop->Run();
loop->timer_manager()->StopTimer(reset_timer);
EXPECT_EQ(test_task.get_idle_counter(), 0);
delete t;
delete reset_timer;
}
///////////////////////////////////////////////////////////////////////////////
// Repeat tests:
// A repeating idle timer will fire repeatedly on each interval, as long
// as it has been idle. So, if the machine remains idle, it will continue
// firing over and over.
TEST(IdleTimerTest, Repeat) {
// Create an IdleTimer, which should fire repeatedly after 100ms.
// Create a Quit timer which will fire after 1.05s.
// Verify that we fired 10 times.
mock_idle_time = GetTickCount();
TestIdleTask test_task(true);
TestFinishedTask finish_task;
MessageLoop* loop = MessageLoop::current();
Timer* t = loop->timer_manager()->StartTimer(1050, &finish_task, false);
test_task.Start();
loop->Run();
// In a perfect world, the idle_counter should be 10. However,
// since timers aren't guaranteed to fire perfectly, this can
// be less. Just expect more than 5 and no more than 10.
EXPECT_GT(test_task.get_idle_counter(), 5);
EXPECT_LE(test_task.get_idle_counter(), 10);
delete t;
}
TEST(IdleTimerTest, RepeatIdleReset) {
// Create an IdleTimer, which should fire repeatedly after 100ms.
// Create a Quit timer which will fire after 1s.
// Create a reset timer, which fires after 550ms
// Verify that we fired 9 times.
mock_idle_time = GetTickCount();
TestIdleTask test_task(true);
ResetIdleTask reset_task;
TestFinishedTask finish_task;
MessageLoop* loop = MessageLoop::current();
Timer* t1 = loop->timer_manager()->StartTimer(1000, &finish_task, false);
Timer* t2 = loop->timer_manager()->StartTimer(550, &reset_task, false);
test_task.Start();
loop->Run();
// In a perfect world, the idle_counter should be 9. However,
// since timers aren't guaranteed to fire perfectly, this can
// be less. Just expect more than 5 and no more than 9.
EXPECT_GT(test_task.get_idle_counter(), 5);
EXPECT_LE(test_task.get_idle_counter(), 9);
delete t1;
delete t2;
}
TEST(IdleTimerTest, RepeatNotIdle) {
// Create an IdleTimer, which should fire repeatedly after 100ms.
// Create a Quit timer which will fire after 1s.
// Create a timer to reset idle every 50ms.
// Verify that we never fired.
mock_idle_time = GetTickCount();
TestIdleTask test_task(true);
TestFinishedTask finish_task;
ResetIdleTask reset_task;
MessageLoop* loop = MessageLoop::current();
Timer* t1 = loop->timer_manager()->StartTimer(1000, &finish_task, false);
Timer* reset_timer = loop->timer_manager()->StartTimer(50, &reset_task, true);
test_task.Start();
loop->Run();
loop->timer_manager()->StopTimer(reset_timer);
EXPECT_EQ(test_task.get_idle_counter(), 0);
delete t1;
delete reset_timer;
}
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