public void PopExpiredGroups_ExpiredGroups_Should_Return()
{
var delayedGroupCache = new DelayedGroupCache <MockItem>();
var delaySpan = TimeSpan.FromSeconds(2);
var groupCount = 5;
var itemCount = 3;
var spanSecond = 1;
var startAt = _mockNow;
//0:00,0:01,0:02
// 0:01,0:02,0:03
// 0:02,0:03,0:04
// 0:03,0:04,0:05
// 0:04,0:05,0:06
//pop at: [0:06]
//expired groups: early than [0:06] - 2 = [0.04] => group 0,1,2 should return
delayedGroupCache.DelaySpan = delaySpan;
var mockCommands = CreateGroupCommands(groupCount, itemCount, spanSecond, startAt);
delayedGroupCache.AppendToGroups(mockCommands, item => item.GroupKey, item => item.CreateAt);
var popAt = mockCommands.Max(x => x.CreateAt);
var popExpiredGroups = delayedGroupCache.PopExpiredGroups(popAt);
ShowCache(delayedGroupCache);
CheckGroups(popExpiredGroups, itemCount, 3);
}
public void PopExpiredGroups_Empty_Should_Return_Empty()
{
var delayedGroupCache = new DelayedGroupCache <MockItem>();
var delaySpan = TimeSpan.FromSeconds(2);
delayedGroupCache.DelaySpan = delaySpan;
var popAt = _mockNow.AddSeconds(10);
var popExpiredGroups = delayedGroupCache.PopExpiredGroups(popAt);
ShowCache(delayedGroupCache);
CheckGroups(popExpiredGroups, 0, 0);
}