public async ValueTask Benchmark()
{
var gettingLockSource = new TaskCompletionSource <bool>();
var continueRefreshSource = new TaskCompletionSource <bool>();
_ = CacheStack.GetOrSetAsync <int>("RefreshWaiting", async(old) =>
{
gettingLockSource.SetResult(true);
await continueRefreshSource.Task;
return(42);
}, new CacheSettings(TimeSpan.FromDays(1), TimeSpan.FromDays(1)));
await gettingLockSource.Task;
var awaitingTasks = new List <Task>();
for (var i = 0; i < WorkIterations; i++)
{
var task = CacheStack.GetOrSetAsync <int>("RefreshWaiting", (old) =>
{
return(Task.FromResult(99));
}, new CacheSettings(TimeSpan.FromDays(1), TimeSpan.FromDays(1)));
awaitingTasks.Add(task.AsTask());
}
continueRefreshSource.SetResult(true);
await Task.WhenAll(awaitingTasks);
//Remove value for next run
await CacheStack.EvictAsync("RefreshWaiting");
}
public async Task Evict_ThrowsOnUseAfterDisposal()
{
var cacheStack = new CacheStack(new[] { new MemoryCacheLayer() }, null);
await DisposeOf(cacheStack);
await cacheStack.EvictAsync("KeyDoesntMatter");
}
public async Task Evict_TriggersCacheChangeExtension()
{
var mockExtension = new Mock <ICacheChangeExtension>();
using var cacheStack = new CacheStack(new[] { new MemoryCacheLayer() }, new [] { mockExtension.Object });
var cacheEntry = await cacheStack.SetAsync("Evict_TriggerCacheChangeExtension", 42, TimeSpan.FromDays(1));
await cacheStack.EvictAsync("Evict_TriggerCacheChangeExtension");
mockExtension.Verify(e => e.OnCacheEvictionAsync("Evict_TriggerCacheChangeExtension"), Times.Once);
}
public async Task Evict_TwoLayers()
{
await using (var cacheStack = new CacheStack(new[] { new MemoryCacheLayer(), new MemoryCacheLayer() }, Array.Empty <ICacheExtension>()))
{
for (var i = 0; i < WorkIterations; i++)
{
await cacheStack.SetAsync("Evict", 15, TimeSpan.FromDays(1));
await cacheStack.EvictAsync("Evict");
}
}
}
public async Task MemoryCacheLayer_CacheStack()
{
await using (var cacheStack = new CacheStack(new[] { new MemoryCacheLayer() }, null))
{
//Get 100 misses
for (var i = 0; i < 100; i++)
{
await cacheStack.GetAsync <int>("GetMiss_" + i);
}
var startDate = DateTime.UtcNow.AddDays(-50);
//Set first 100 (simple type)
for (var i = 0; i < 100; i++)
{
await cacheStack.SetAsync("Comparison_" + i, new CacheEntry <int>(1, startDate.AddDays(i) + TimeSpan.FromDays(1)));
}
//Set last 100 (complex type)
for (var i = 100; i < 200; i++)
{
await cacheStack.SetAsync("Comparison_" + i, new CacheEntry <RealCostComplexType>(new RealCostComplexType
{
ExampleString = "Hello World",
ExampleNumber = 42,
ExampleDate = new DateTime(2000, 1, 1),
DictionaryOfNumbers = new Dictionary <string, int>()
{
{ "A", 1 }, { "B", 2 }, { "C", 3 }
}
}, startDate.AddDays(i - 100) + TimeSpan.FromDays(1)));
}
//Get first 50 (simple type)
for (var i = 0; i < 50; i++)
{
await cacheStack.GetAsync <int>("Comparison_" + i);
}
//Get last 50 (complex type)
for (var i = 150; i < 200; i++)
{
await cacheStack.GetAsync <RealCostComplexType>("Comparison_" + i);
}
//Evict middle 100
for (var i = 50; i < 150; i++)
{
await cacheStack.EvictAsync("Comparison_" + i);
}
//Cleanup outer 100
await cacheStack.CleanupAsync();
}
}
public async Task Evict_EvictsAllTheLayers()
{
var layer1 = new MemoryCacheLayer();
var layer2 = new MemoryCacheLayer();
using var cacheStack = new CacheStack(new[] { layer1, layer2 }, Array.Empty <ICacheExtension>());
var cacheEntry = await cacheStack.SetAsync("Evict_EvictsAllTheLayers", 42, TimeSpan.FromDays(1));
Assert.AreEqual(cacheEntry, await layer1.GetAsync <int>("Evict_EvictsAllTheLayers"));
Assert.AreEqual(cacheEntry, await layer2.GetAsync <int>("Evict_EvictsAllTheLayers"));
await cacheStack.EvictAsync("Evict_EvictsAllTheLayers");
Assert.IsNull(await layer1.GetAsync <int>("Evict_EvictsAllTheLayers"));
Assert.IsNull(await layer2.GetAsync <int>("Evict_EvictsAllTheLayers"));
}
public async Task Evict_ThrowsOnNullKey()
{
var cacheStack = new CacheStack(new[] { new MemoryCacheLayer() }, Array.Empty <ICacheExtension>());
await cacheStack.EvictAsync(null);
}