public bool Add(string key, object value, DateTimeOffset absExpiration)
{
Delete(key);
var newCacheEntry = _memoryCache.CreateEntry(key);
newCacheEntry.Value = value;
newCacheEntry.AbsoluteExpiration = absExpiration;
return(_memoryCache.TryGetValue(key, out _));
}
public void NegativeSizeOnMemoryCacheEntryThrows()
{
var cache = new MemoryCache(new MemoryCacheOptions());
using (var cacheEntry = cache.CreateEntry(new object()))
{
Assert.Throws <ArgumentOutOfRangeException>(() => { cacheEntry.Size = -1; });
Assert.Throws <ArgumentOutOfRangeException>(() => { cacheEntry.SetSize(-1); });
}
}
public void TestMemoryObject2()
{
var cache = new Microsoft.Extensions.Caching.Memory.MemoryCache(new MemoryCacheOptions());
var entry = cache.CreateEntry("user");
entry.Value = new User {
Name = "Foo"
};
cache.TryGetValue("user", out User f);
Assert.Equal("Foo", f.Name);
f.Name = "Bar";
cache.TryGetValue("user", out User b);
Assert.Equal("Bar", b.Name);
}
public void GetCurrentStatistics_UpdateAfterExistingItemExpired_CurrentEstimatedSizeResets(bool sizeLimitIsSet)
{
const string Key = "myKey";
var cache = new MemoryCache(sizeLimitIsSet ?
new MemoryCacheOptions {
TrackStatistics = true, Clock = new SystemClock(), SizeLimit = 10
} :
new MemoryCacheOptions {
TrackStatistics = true, Clock = new SystemClock()
}
);
ICacheEntry entry;
using (entry = cache.CreateEntry(Key))
{
var expirationToken = new TestExpirationToken()
{
ActiveChangeCallbacks = true
};
var mc = new MemoryCacheEntryOptions {
Size = 5
};
cache.Set(Key, new object(), mc.AddExpirationToken(expirationToken));
MemoryCacheStatistics?stats = cache.GetCurrentStatistics();
Assert.NotNull(stats);
Assert.Equal(1, cache.Count);
Assert.Equal(1, stats.CurrentEntryCount);
VerifyCurrentEstimatedSize(5, sizeLimitIsSet, stats);
expirationToken.HasChanged = true;
cache.Set(Key, new object(), mc.AddExpirationToken(expirationToken));
stats = cache.GetCurrentStatistics();
Assert.NotNull(stats);
Assert.Equal(0, cache.Count);
Assert.Equal(0, stats.CurrentEntryCount);
VerifyCurrentEstimatedSize(0, sizeLimitIsSet, stats);
}
}
