public void QueueUserWorkItemShouldProcessSimultaneousRequestsSequentially()
{
// Arrange
const int expected = NUM_THREADS * LOOP_COUNT;
var countdownEvent = new CountdownEvent(expected);
ITaskScheduler singleThreadedTaskScheduler = new Core.Impl.SequentialTaskScheduler(null);
Helper volatileFieldHelper = new Helper();
// Act
for (int i = 0; i < NUM_THREADS; i++)
{
new Thread(() =>
{
for (int j = 0; j < LOOP_COUNT; j++)
{
singleThreadedTaskScheduler.ScheduleTask(() =>
{
int initialCount = volatileFieldHelper.Field;
Thread.Yield();
volatileFieldHelper.Field = initialCount + 1;
countdownEvent.Signal();
});
}
}).Start();
}
// Assert
Assert.IsTrue(countdownEvent.Wait(TimeSpan.FromSeconds(5)), "CountdownEvent timed out waiting to be signaled.");
Assert.AreEqual(expected, volatileFieldHelper.Field, "Wrong count - race condition?");
}
public void QueueUserWorkItemShouldProcessSimultaneousRequestsSequentially()
{
// Arrange
const int expected = NUM_THREADS * LOOP_COUNT;
var countdownEvent = new CountdownEvent(expected);
ITaskScheduler singleThreadedTaskScheduler = new Core.Impl.SequentialTaskScheduler(null);
Helper volatileFieldHelper = new Helper();
// Act
for (int i = 0; i < NUM_THREADS; i++)
{
new Thread(() =>
{
for (int j = 0; j < LOOP_COUNT; j++)
{
singleThreadedTaskScheduler.ScheduleTask(() =>
{
int initialCount = volatileFieldHelper.Field;
Thread.Yield();
volatileFieldHelper.Field = initialCount + 1;
countdownEvent.Signal();
});
}
}).Start();
}
// Assert
Assert.IsTrue(countdownEvent.Wait(TimeSpan.FromSeconds(5)), "CountdownEvent timed out waiting to be signaled.");
Assert.AreEqual(expected, volatileFieldHelper.Field, "Wrong count - race condition?");
}
