public void TryReplenishWithAutoReplenish_ReturnsFalse()
{
var limiter = new FixedWindowRateLimiter(new FixedWindowRateLimiterOptions(2, QueueProcessingOrder.OldestFirst, 1,
TimeSpan.FromSeconds(1), autoReplenishment: true));
Assert.Equal(2, limiter.GetAvailablePermits());
Assert.False(limiter.TryReplenish());
Assert.Equal(2, limiter.GetAvailablePermits());
}
public override async Task CanAcquireResourceAsync_QueuesAndGrabsNewest()
{
var limiter = new FixedWindowRateLimiter(new FixedWindowRateLimiterOptions(2, QueueProcessingOrder.NewestFirst, 3,
TimeSpan.FromMinutes(0), autoReplenishment: false));
var lease = await limiter.WaitAsync(2);
Assert.True(lease.IsAcquired);
var wait1 = limiter.WaitAsync(2);
var wait2 = limiter.WaitAsync();
Assert.False(wait1.IsCompleted);
Assert.False(wait2.IsCompleted);
lease.Dispose();
Assert.True(limiter.TryReplenish());
// second queued item completes first with NewestFirst
lease = await wait2;
Assert.True(lease.IsAcquired);
Assert.False(wait1.IsCompleted);
lease.Dispose();
Assert.Equal(1, limiter.GetAvailablePermits());
Assert.True(limiter.TryReplenish());
lease = await wait1;
Assert.True(lease.IsAcquired);
}
public override async Task CanAcquireResourceAsync_QueuesAndGrabsOldest()
{
var limiter = new FixedWindowRateLimiter(new FixedWindowRateLimiterOptions(1, QueueProcessingOrder.OldestFirst, 2,
TimeSpan.Zero, autoReplenishment: false));
var lease = await limiter.WaitAsync();
Assert.True(lease.IsAcquired);
var wait1 = limiter.WaitAsync();
var wait2 = limiter.WaitAsync();
Assert.False(wait1.IsCompleted);
Assert.False(wait2.IsCompleted);
lease.Dispose();
Assert.True(limiter.TryReplenish());
lease = await wait1;
Assert.True(lease.IsAcquired);
Assert.False(wait2.IsCompleted);
lease.Dispose();
Assert.Equal(0, limiter.GetAvailablePermits());
Assert.True(limiter.TryReplenish());
lease = await wait2;
Assert.True(lease.IsAcquired);
}
public async Task AutoReplenish_ReplenishesCounters()
{
var limiter = new FixedWindowRateLimiter(new FixedWindowRateLimiterOptions(2, QueueProcessingOrder.OldestFirst, 1,
TimeSpan.FromMilliseconds(1000), autoReplenishment: true));
Assert.Equal(2, limiter.GetAvailablePermits());
limiter.Acquire(2);
var lease = await limiter.WaitAsync(1);
Assert.True(lease.IsAcquired);
}
public override async Task CanCancelWaitAsyncBeforeQueuing()
{
var limiter = new FixedWindowRateLimiter(new FixedWindowRateLimiterOptions(1, QueueProcessingOrder.OldestFirst, 1,
TimeSpan.Zero, autoReplenishment: false));
var lease = limiter.Acquire(1);
Assert.True(lease.IsAcquired);
var cts = new CancellationTokenSource();
cts.Cancel();
var ex = await Assert.ThrowsAsync <TaskCanceledException>(() => limiter.WaitAsync(1, cts.Token).AsTask());
Assert.Equal(cts.Token, ex.CancellationToken);
lease.Dispose();
Assert.True(limiter.TryReplenish());
Assert.Equal(1, limiter.GetAvailablePermits());
}
public override async Task CanAcquireResourcesWithWaitAsyncWithQueuedItemsIfNewestFirst()
{
var limiter = new FixedWindowRateLimiter(new FixedWindowRateLimiterOptions(2, QueueProcessingOrder.NewestFirst, 2,
TimeSpan.Zero, autoReplenishment: false));
var lease = limiter.Acquire(1);
Assert.True(lease.IsAcquired);
var wait = limiter.WaitAsync(2);
Assert.False(wait.IsCompleted);
Assert.Equal(1, limiter.GetAvailablePermits());
lease = await limiter.WaitAsync(1);
Assert.True(lease.IsAcquired);
Assert.False(wait.IsCompleted);
limiter.TryReplenish();
lease = await wait;
Assert.True(lease.IsAcquired);
}