public void ShouldNotGenerateAdditionalCompareEvent()
{
var limit = 300UL;
var compare = 100UL;
var compareCounter = 0;
var clockSource = new BaseClockSource();
var timer = new ComparingTimer(clockSource, frequency: 1000000, owner: null,
localName: String.Empty, limit: limit, enabled: true, eventEnabled: true, compare: compare);
timer.CompareReached += delegate { compareCounter++; };
Assert.AreEqual(0, compareCounter);
// Run up to the first compare
clockSource.Advance(TimeInterval.FromTicks(100), true);
Assert.AreEqual(1, compareCounter);
// overwrite timer's value with the same value it has;
// this should be a nop
timer.Value = 100;
Assert.AreEqual(1, compareCounter);
// Now run to the next compare event
clockSource.Advance(TimeInterval.FromTicks(300), true);
Assert.AreEqual(2, compareCounter);
Assert.AreEqual(timer.Value, compare);
Assert.AreEqual(timer.Compare, compare);
}
public void ShouldObserveShorterPeriodClockAfterAdd()
{
var clockSource = new BaseClockSource();
var counterA = 0;
var counterB = 0;
Action handlerA = () => counterA++;
Action handlerB = () => counterB++;
ClockEntry entryA = new ClockEntry(1000, 1, handlerA, null, String.Empty)
{
Value = 0
};
ClockEntry entryB = new ClockEntry(100, 1, handlerB, null, String.Empty)
{
Value = 0
};
clockSource.AddClockEntry(entryA);
clockSource.Advance(TimeInterval.FromSeconds(500));
clockSource.AddClockEntry(entryB);
entryA = clockSource.GetClockEntry(handlerA);
entryB = clockSource.GetClockEntry(handlerB);
Assert.AreEqual(entryA.Value, 500);
Assert.AreEqual(entryA.Period, 1000);
Assert.AreEqual(entryB.Value, 0);
Assert.AreEqual(entryB.Period, 100);
clockSource.Advance(TimeInterval.FromSeconds(50));
entryA = clockSource.GetClockEntry(handlerA);
entryB = clockSource.GetClockEntry(handlerB);
Assert.AreEqual(counterA, 0);
Assert.AreEqual(counterB, 0);
Assert.AreEqual(entryA.Value, 550);
Assert.AreEqual(entryA.Period, 1000);
Assert.AreEqual(entryB.Value, 50);
Assert.AreEqual(entryB.Period, 100);
clockSource.Advance(TimeInterval.FromSeconds(50));
entryA = clockSource.GetClockEntry(handlerA);
entryB = clockSource.GetClockEntry(handlerB);
Assert.AreEqual(counterA, 0);
Assert.AreEqual(counterB, 1);
Assert.AreEqual(entryA.Value, 600);
Assert.AreEqual(entryA.Period, 1000);
Assert.AreEqual(entryB.Value, 0);
Assert.AreEqual(entryB.Period, 100);
}
public void ShouldTickWithOneHandler()
{
var clocksource = new BaseClockSource();
var counter = 0;
clocksource.AddClockEntry(new ClockEntry(2, 1, () => counter++)
{
Value = 0
});
clocksource.Advance(TimeInterval.FromTicks(1));
Assert.AreEqual(0, counter);
clocksource.Advance(TimeInterval.FromTicks(1));
Assert.AreEqual(1, counter);
clocksource.Advance(TimeInterval.FromTicks(1));
Assert.AreEqual(1, counter);
clocksource.Advance(TimeInterval.FromTicks(2));
Assert.AreEqual(2, counter);
}
public void ShouldHaveHandlersInSync()
{
// we test here whether handler executed by the slower clock entry
// always "sees" value of the faster one as ten times its own value
var clockSource = new BaseClockSource();
Action firstHandler = () =>
{
};
var values = new List <ulong>();
clockSource.AddClockEntry(new ClockEntry(10000, 10, firstHandler, null, String.Empty));
clockSource.AddClockEntry(new ClockEntry(10, 1, () => values.Add(clockSource.GetClockEntry(firstHandler).Value), null, String.Empty));
clockSource.Advance(TimeInterval.FromSeconds(9), true);
clockSource.Advance(TimeInterval.FromSeconds(8), true);
clockSource.Advance(TimeInterval.FromSeconds(20), true);
CollectionAssert.AreEqual(new [] { 100, 200, 300 }, values);
}
public void ShouldHaveHandlersInSync()
{
// we test here whether handler executed by the slower clock entry
// always "sees" value of the faster one as ten times its own value
var clockSource = new BaseClockSource();
Action firstHandler = () =>
{
};
var values = new List <ulong>();
// clock entry with ratio -10 is 10 times slower than the one with 1
clockSource.AddClockEntry(new ClockEntry(10000, 1, firstHandler));
clockSource.AddClockEntry(new ClockEntry(1, -10, () => values.Add(clockSource.GetClockEntry(firstHandler).Value)));
clockSource.Advance(TimeInterval.FromTicks(9), true);
clockSource.Advance(TimeInterval.FromTicks(8), true);
clockSource.Advance(TimeInterval.FromTicks(20), true);
CollectionAssert.AreEqual(new [] { 10, 20, 30 }, values);
}
public void ShouldGenerateCompareEventAtCompareAfterClear()
{
var limit = 300UL;
var compare = 100UL;
var compareCounter = 0;
var clockSource = new BaseClockSource(); var timer = new ComparingTimer(clockSource, frequency: 1000000, owner: null,
localName: String.Empty, limit: limit, enabled: true, eventEnabled: true, compare: compare);
timer.CompareReached += delegate { compareCounter++; };
// Run to 200 ticks, then clear
var advance = 200UL;
clockSource.Advance(TimeInterval.FromTicks(advance), true);
timer.Value = 0;
// Now run to compare
compareCounter = 0;
clockSource.Advance(TimeInterval.FromTicks(compare), true);
Assert.AreEqual(compareCounter, 1);
Assert.AreEqual(timer.Value, compare);
Assert.AreEqual(timer.Compare, compare);
}
public void ShouldTickWithTwoHandlers()
{
var clocksource = new BaseClockSource();
var counterA = 0;
var counterB = 0;
clocksource.AddClockEntry(new ClockEntry(2, 1, () => counterA++, null, String.Empty)
{
Value = 0
});
clocksource.AddClockEntry(new ClockEntry(5, 1, () => counterB++, null, String.Empty)
{
Value = 0
});
clocksource.Advance(TimeInterval.FromTicks(2));
Assert.AreEqual(1, counterA);
Assert.AreEqual(0, counterB);
clocksource.Advance(TimeInterval.FromTicks(2));
Assert.AreEqual(2, counterA);
Assert.AreEqual(0, counterB);
clocksource.Advance(TimeInterval.FromTicks(1));
Assert.AreEqual(2, counterA);
Assert.AreEqual(1, counterB);
}
public void ShouldTickWithTwoHandlers()
{
var clocksource = new BaseClockSource();
var counterA = 0;
var counterB = 0;
clocksource.AddClockEntry(new ClockEntry(2, 1, () => counterA++)
{
Value = 0
});
clocksource.AddClockEntry(new ClockEntry(5, 1, () => counterB++)
{
Value = 0
});
clocksource.Advance(2);
Assert.AreEqual(1, counterA);
Assert.AreEqual(0, counterB);
clocksource.Advance(2);
Assert.AreEqual(2, counterA);
Assert.AreEqual(0, counterB);
clocksource.Advance(1);
Assert.AreEqual(2, counterA);
Assert.AreEqual(1, counterB);
}
public void ShouldHandleCompareValueChangeWhenEnabled()
{
var compareCounter = 0;
var clockSource = new BaseClockSource();
var timer = new ComparingTimer(clockSource, 1000000, null, String.Empty, 65535 + 1, enabled: true, workMode: WorkMode.Periodic, eventEnabled: true, compare: 65535);
timer.CompareReached += delegate { compareCounter++; };
clockSource.Advance(TimeInterval.FromTicks(65535), true);
Assert.AreEqual(65535, timer.Value);
Assert.AreEqual(65535, timer.Compare);
Assert.AreEqual(1, compareCounter);
clockSource.Advance(TimeInterval.FromTicks(1), true);
Assert.AreEqual(0, timer.Value);
Assert.AreEqual(65535, timer.Compare);
Assert.AreEqual(1, compareCounter);
compareCounter = 0;
clockSource.Advance(TimeInterval.FromTicks(16304), true);
Assert.AreEqual(16304, timer.Value);
Assert.AreEqual(65535, timer.Compare);
Assert.AreEqual(0, compareCounter);
timer.Compare = 0;
Assert.AreEqual(16304, timer.Value);
Assert.AreEqual(0, timer.Compare);
Assert.AreEqual(0, compareCounter);
clockSource.Advance(TimeInterval.FromTicks(65535 - 16304), true);
Assert.AreEqual(65535, timer.Value);
Assert.AreEqual(0, timer.Compare);
Assert.AreEqual(0, compareCounter);
clockSource.Advance(TimeInterval.FromTicks(1), true);
Assert.AreEqual(0, timer.Value);
Assert.AreEqual(0, timer.Compare);
Assert.AreEqual(1, compareCounter);
clockSource.Advance(TimeInterval.FromTicks(65535), true);
Assert.AreEqual(65535, timer.Value);
Assert.AreEqual(0, timer.Compare);
Assert.AreEqual(1, compareCounter);
clockSource.Advance(TimeInterval.FromTicks(1), true);
Assert.AreEqual(0, timer.Value);
Assert.AreEqual(0, timer.Compare);
Assert.AreEqual(2, compareCounter);
}
public void ShouldClearWhenValueSetToZero()
{
var compare = 200UL;
var limit = 300UL;
var compareCounter = 0;
var clockSource = new BaseClockSource();
var timer = new ComparingTimer(clockSource, frequency: 1000000, owner: null, localName: String.Empty, limit: limit, enabled: true, eventEnabled: true, compare: compare);
timer.CompareReached += delegate { compareCounter++; };
// Run to 100 ticks
var advance = 100UL;
clockSource.Advance(TimeInterval.FromTicks(advance), true);
Assert.AreEqual(advance, timer.Value);
Assert.AreEqual(compare, timer.Compare);
Assert.AreEqual(compareCounter, 0);
// Clear timer
timer.Value = 0;
Assert.AreEqual(timer.Value, 0);
Assert.AreEqual(timer.Compare, compare);
}