| public Delay ( Callback callback ) : object | ||
| callback | Callback | The Callback to be executed when the delay is complete. |
| return | object | |
private void TestSubsequentDelay(Delayer delayer, int delay)
{
ManualResetEvent manualEvent = new ManualResetEvent(false);
bool called = false;
DateTime timeCalled = DateTime.MaxValue;
Object obj = new Object();
Callback nop = delegate()
{
return null;
};
Callback callback = delegate()
{
called = true;
timeCalled = DateTime.Now;
manualEvent.Set();
return obj;
};
// This is the difference between this method and TestImmediateDelay.
// This method ignores the first call to Delay and tests the delay of the
// second call to Delay.
delayer.Delay(nop);
DateTime timeStarted = DateTime.Now;
Object result = delayer.Delay(callback);
manualEvent.WaitOne(delay * 2, false);
int timeElapsed = (int)(timeCalled - timeStarted).TotalMilliseconds;
double elapsedError = delay * TIME_DIFFERENCE;
Assert.IsTrue(called);
Assert.AreSame(obj, result);
Assert.IsTrue(timeElapsed >= delay - elapsedError,
"Delay was not at least (" + delay + " - " + elapsedError + ") msec; total time elapsed was " + timeElapsed);
if (timeElapsed > delay + elapsedError)
{
Assert.Inconclusive("Test failed, or specified delay was too small to be supported. Time elapsed was " + timeElapsed + " msec; expected <= " + elapsedError);
}
}
private void TestImmediateDelay(Delayer delayer, int delay)
{
ManualResetEvent manualEvent = new ManualResetEvent(false);
bool called = false;
DateTime timeCalled = DateTime.MaxValue;
Object obj = new Object();
Callback callback = delegate()
{
called = true;
timeCalled = DateTime.Now;
manualEvent.Set();
return obj;
};
DateTime timeStarted = DateTime.Now;
Object result = delayer.Delay(callback);
manualEvent.WaitOne(delay * 2, false);
int timeElapsed = (int)(timeCalled - timeStarted).TotalMilliseconds;
Assert.IsTrue(called);
Assert.AreSame(obj, result);
if (timeElapsed > delay * IMMEDIATE_TIME_DIFFERENCE)
{
Assert.Inconclusive("Test failed, or delay was too small. Time elapsed was " + timeElapsed + " msec; expected <= " + (delay * IMMEDIATE_TIME_DIFFERENCE));
}
}