public void AutoSortingEnumerator_Should_NotChange_IfItIsContinueIteratingToTheEnd(params string[] values)
{
var testQueue = new FromLastIteratedEnumerable <string>(values);
testQueue.Iterate().ToArray();
var result = testQueue.Iterate().ToArray();
result.Should().BeInAscendingOrder();
result.Should().BeEquivalentTo(values, config => config.WithStrictOrdering());
}
public void AutoSortingEnumerator_Should_SetLastIteratedItemToTheBeginning(int takeCount,
params string[] values)
{
var testQueue = new FromLastIteratedEnumerable <string>(values);
testQueue.Iterate().Take(takeCount).ToArray();
var result = testQueue.Iterate().ToArray();
result[0].Should().BeEquivalentTo(values[takeCount - 1]);
}
private IEnumerable <Thread> CreateTestThreads(
FromLastIteratedEnumerable <string> autosorter,
int itemsCount,
int threadsCount,
int syclesInThreadCount)
{
for (var threadIndex = 0; threadIndex < threadsCount; threadIndex++)
{
yield return(new Thread(
() =>
{
for (var i = 0; i < syclesInThreadCount; i++)
{
autosorter.Iterate().Take(random.Next(1, itemsCount)).ToArray();
}
}));
}
}
public void AutoSortingEnumerator_ShouldBe_ThreadSafe()
{
const int itemsCount = 100;
const int threadsCount = 100;
const int syclesInThreadCount = 100;
var sourceCollection = fixture.CreateMany <string>(itemsCount).ToArray();
var testQueue = new FromLastIteratedEnumerable <string>(sourceCollection.ToArray());
var threads = CreateTestThreads(testQueue, itemsCount, threadsCount, syclesInThreadCount).ToArray();
threads.ForEach(thread => thread.Start());
while (threads.Any(thread => thread.IsAlive))
{
}
var result = testQueue.Iterate().ToArray();
result.Should().BeEquivalentTo(sourceCollection);
}
