public void SuccessfulPutAndTake()
{
TransferQueue <int> transferQueue = new TransferQueue <int>();
int numberOfThreads = 4;
int timeout = 50;
int message = 35;
Thread[] threads = new Thread[numberOfThreads];
for (int i = 0; i < numberOfThreads / 2; i++)
{
threads[i] = new Thread(() => transferQueue.Put(message));
}
int[] msgs = new int[2];
int idx = default;
for (int i = 2; i < numberOfThreads; i++)
{
threads[i] = new Thread(() => {
try {
Thread.Sleep(10);
msgs[idx++] = transferQueue.Take(timeout);
}
catch (ThreadInterruptedException e) {
Console.WriteLine("Error : take exception");
Console.WriteLine(e.StackTrace);
}
});
}
threads[0].Start(); //put message
Thread.Sleep(1);
threads[2].Start(); // take message
Thread.Sleep(1);
threads[3].Start(); // take message - blocking
Thread.Sleep(1);
threads[1].Start(); // put message
Thread.Sleep(1);
for (int i = 0; i < numberOfThreads; i++)
{
threads[i].Join();
}
for (int i = 2; i < numberOfThreads; i++)
{
Assert.AreEqual(message, msgs[i - 2]);
}
}
public void ShouldTimeoutAndReturnNullForTakeAndFalseForTransfer()
{
TransferQueue <int?> transferQueue = new TransferQueue <int?>();
int numberOfThreads = 3;
int timeout = 10;
int message = 35;
Thread[] threads = new Thread[numberOfThreads];
threads[0] = new Thread(() => {
try {
Thread.Sleep(100);
transferQueue.Put(message);
}
catch (ThreadInterruptedException e) {
Console.WriteLine(e.StackTrace);
}
});
int?takeIntegerResult = default;
threads[1] = new Thread(() => {
try {
takeIntegerResult = transferQueue.Take(timeout);
}
catch (ThreadInterruptedException e) {
Console.WriteLine("ERROR : take exception");
Console.WriteLine(e.StackTrace);
}
});
for (int i = 0; i < numberOfThreads - 1; i++)
{
threads[i].Start();
}
for (int i = 0; i < numberOfThreads - 1; i++)
{
threads[i].Join();
}
Assert.IsNull(takeIntegerResult);
}
public void TranferQueuePutAndTakeTest()
{
TransferQueue <int> tranferQueue = new TransferQueue <int>();
int msg = 0;
bool received = false;
Thread t1 = new Thread(() =>
{
tranferQueue.Put(22);
});
Thread t2 = new Thread(() =>
{
received = tranferQueue.Take(Timeout.Infinite, out msg);
});
t1.Start();
t2.Start();
t1.Join();
t2.Join();
Assert.IsTrue(received);
Assert.IsTrue(msg == 22);
}