public void OnRateLimitChangedIsTriggeredCorrectly()
{
var rateLimitChanges = new List <RateLimitChangedNotification <int> >();
Action <RateLimitChangedNotification <int> > onRateLimitChanged = rateLimitChanges.Add;
var rateLimit1 = new RateLimit(1, TimeSpan.FromSeconds(1));
var rateLimit2 = new RateLimit(2, TimeSpan.FromMinutes(1));
var rateLimiter = new RateLimiter <int>(new[]
{
new KeyValuePair <int, RateLimit>(1, rateLimit1),
new KeyValuePair <int, RateLimit>(2, rateLimit2)
}, onRateLimitChanged: onRateLimitChanged);
rateLimiter.SetRateLimit(1, rateLimit1);
rateLimitChanges.Should().BeEmpty();
rateLimiter.SetRateLimit(1, rateLimit2);
var expected1 = new RateLimitChangedNotification <int>(
1,
rateLimit1.AsLocal(1),
rateLimit2.AsLocal(1),
rateLimit1,
rateLimit2);
rateLimitChanges.Should().ContainSingle()
.And.BeEquivalentTo(expected1);
rateLimiter.SetRateLimit(2, rateLimit1);
var expected2 = new RateLimitChangedNotification <int>(
2,
rateLimit2.AsLocal(1),
rateLimit1.AsLocal(1),
rateLimit2,
rateLimit1);
rateLimitChanges.Should().HaveCount(2)
.And.HaveElementAt(1, expected2);
}