async void Remove_LastItemInLinkedDictionary_SetSecondItemFromLastToBeLast(
[Frozen] Mock <Func <string, Task <ConditionalValue <CachedItem> > > > getCacheItem,
CacheStoreMetadata cacheStoreMetadata,
LinkedDictionaryHelper linkedDictionaryHelper)
{
var cachedValue = Encoding.UTF8.GetBytes("some value");
var totalSize = cacheStoreMetadata.Size - cachedValue.Length;
var items = new Dictionary <string, CachedItem> {
{ "1", new CachedItem(cachedValue, null, "2") },
{ "2", new CachedItem(cachedValue, "1", "3", TimeSpan.FromMilliseconds(100), new DateTime(1000)) },
{ "3", new CachedItem(cachedValue, "2", null) }
};
getCacheItem.Setup(mock => mock(It.IsAny <string>())).ReturnsAsync(await Task.FromResult(new ConditionalValue <CachedItem>(true, items["2"])));
var result = await linkedDictionaryHelper.Remove(cacheStoreMetadata, items["3"]);
Assert.Single(result.CachedItemsToUpdate);
var newLastItem = result.CachedItemsToUpdate["2"];
Assert.Equal(items["2"].BeforeCacheKey, newLastItem.BeforeCacheKey);
Assert.Null(newLastItem.AfterCacheKey);
Assert.Equal(cachedValue, newLastItem.Value);
Assert.Equal(items["2"].SlidingExpiration, newLastItem.SlidingExpiration);
Assert.Equal(items["2"].AbsoluteExpiration, newLastItem.AbsoluteExpiration);
Assert.Equal(totalSize, result.CacheStoreMetadata.Size);
Assert.Equal(cacheStoreMetadata.FirstCacheKey, result.CacheStoreMetadata.FirstCacheKey);
Assert.Equal("2", result.CacheStoreMetadata.LastCacheKey);
}
async void Remove_OnlyItemInLinkedDictionary_SetCacheItemNotCalled(
CacheStoreMetadata cacheStoreMetadata,
LinkedDictionaryHelper linkedDictionaryHelper)
{
var cachedValue = Encoding.UTF8.GetBytes("some value");
var totalSize = cacheStoreMetadata.Size - cachedValue.Length;
var c = new CachedItem(cachedValue, null, null);
var result = await linkedDictionaryHelper.Remove(cacheStoreMetadata, c);
Assert.Empty(result.CachedItemsToUpdate);
Assert.Equal(totalSize, result.CacheStoreMetadata.Size);
Assert.Null(result.CacheStoreMetadata.FirstCacheKey);
Assert.Null(result.CacheStoreMetadata.LastCacheKey);
}
async void Remove_MiddleItemInLinkedDictionary_ItemBeforeAndAfterNeedTobeLinked(
[Frozen] Mock <Func <string, Task <ConditionalValue <CachedItem> > > > getCacheItem,
CacheStoreMetadata cacheStoreMetadata,
LinkedDictionaryHelper linkedDictionaryHelper)
{
var cachedValue = Encoding.UTF8.GetBytes("some value");
var totalSize = cacheStoreMetadata.Size - cachedValue.Length;
var items = new Dictionary <string, CachedItem> {
{ "1", new CachedItem(cachedValue, null, "2", TimeSpan.FromMilliseconds(10), new DateTimeOffset(50, TimeSpan.Zero)) },
{ "2", new CachedItem(cachedValue, "1", "3") },
{ "3", new CachedItem(cachedValue, "2", null, TimeSpan.FromMilliseconds(100), new DateTimeOffset(1000, TimeSpan.Zero)) }
};
getCacheItem.Setup(mock => mock("1")).ReturnsAsync(await Task.FromResult(new ConditionalValue <CachedItem>(true, items["1"])));
getCacheItem.Setup(mock => mock("3")).ReturnsAsync(await Task.FromResult(new ConditionalValue <CachedItem>(true, items["3"])));
var result = await linkedDictionaryHelper.Remove(cacheStoreMetadata, items["2"]);
Assert.Equal(2, result.CachedItemsToUpdate.Count);
var newFirstItem = result.CachedItemsToUpdate["1"];
Assert.Null(newFirstItem.BeforeCacheKey);
Assert.Equal("3", newFirstItem.AfterCacheKey);
Assert.Equal(cachedValue, newFirstItem.Value);
Assert.Equal(items["1"].SlidingExpiration, newFirstItem.SlidingExpiration);
Assert.Equal(items["1"].AbsoluteExpiration, newFirstItem.AbsoluteExpiration);
var newLastItem = result.CachedItemsToUpdate["3"];
Assert.Equal("1", newLastItem.BeforeCacheKey);
Assert.Null(newLastItem.AfterCacheKey);
Assert.Equal(cachedValue, newLastItem.Value);
Assert.Equal(items["3"].SlidingExpiration, newLastItem.SlidingExpiration);
Assert.Equal(items["3"].AbsoluteExpiration, newLastItem.AbsoluteExpiration);
Assert.Equal(totalSize, result.CacheStoreMetadata.Size);
Assert.Equal(cacheStoreMetadata.FirstCacheKey, result.CacheStoreMetadata.FirstCacheKey);
Assert.Equal(cacheStoreMetadata.LastCacheKey, result.CacheStoreMetadata.LastCacheKey);
}