public async Task Post_runs_to_concurrency_limit(int concurrencyLimit, int postCount)
{
_sut = new WorkPool(concurrencyLimit);
var currentConcurrency = 0;
var maxObservedConcurrency = 0;
async Task SimulatedWork()
{
Interlocked.Increment(ref currentConcurrency);
await Task.Delay(10); // simulate work
lock (_sut)
{
maxObservedConcurrency = Math.Max(maxObservedConcurrency, currentConcurrency);
}
Interlocked.Decrement(ref currentConcurrency);
}
for (var i = 0; i < postCount; i++)
{
_sut.Post(SimulatedWork);
}
await _sut.WaitAsync();
Assert.Equal(concurrencyLimit, maxObservedConcurrency);
}
public async Task Post_runs_supplied_func()
{
_sut = new WorkPool(3);
var hasRun = false;
_sut.Post(() =>
{
hasRun = true;
return(Task.CompletedTask);
});
await _sut.WaitAsync();
Assert.True(hasRun);
}