private async Task Eject <T>(AmbientCache <T> cache, int count)
{
int countsToEject = CountsToEject;
for (int ejection = 0; ejection < count; ++ejection)
{
for (int i = 0; i < countsToEject; ++i)
{
string shouldNotBeFoundValue;
shouldNotBeFoundValue = await cache.Retrieve <string>("vhxcjklhdsufihs");
}
}
}
public async Task CacheNone()
{
using (ScopedLocalServiceOverride <IAmbientCache> localCache = new ScopedLocalServiceOverride <IAmbientCache>(null))
{
TestCache ret;
AmbientCache <TestCache> cache = new AmbientCache <TestCache>();
await cache.Store(true, "Test1", this);
ret = await cache.Retrieve <TestCache>("Test1");
Assert.IsNull(ret);
await cache.Remove <TestCache>(true, "Test1");
ret = await cache.Retrieve <TestCache>("Test1", null);
Assert.IsNull(ret);
await cache.Clear();
ret = await cache.Retrieve <TestCache>("Test1", null);
Assert.IsNull(ret);
}
}
public async Task CacheSpecifiedImplementation()
{
AmbientSettingsOverride localSettingsSet = new AmbientSettingsOverride(TestCacheSettingsDictionary, nameof(CacheSpecifiedImplementation));
using (AmbientClock.Pause())
using (new ScopedLocalServiceOverride <IAmbientSettingsSet>(localSettingsSet))
{
TestCache ret;
IAmbientCache cacheService = new BasicAmbientCache(localSettingsSet);
AmbientCache <TestCache> cache = new AmbientCache <TestCache>(cacheService, "prefix");
await cache.Store <TestCache>(true, "Test1", this);
ret = await cache.Retrieve <TestCache>("Test1", null);
Assert.AreEqual(this, ret);
await cache.Remove <TestCache>(true, "Test1");
ret = await cache.Retrieve <TestCache>("Test1", null);
Assert.IsNull(ret);
await cache.Store <TestCache>(true, "Test2", this, null, DateTime.MinValue);
ret = await cache.Retrieve <TestCache>("Test2", null);
Assert.AreEqual(this, ret);
await Eject(cache, 1);
ret = await cache.Retrieve <TestCache>("Test2", null);
Assert.IsNull(ret);
await cache.Store <TestCache>(true, "Test3", this, TimeSpan.FromMinutes(-1));
ret = await cache.Retrieve <TestCache>("Test3", null);
Assert.IsNull(ret);
await cache.Store <TestCache>(true, "Test4", this, TimeSpan.FromMinutes(10), AmbientClock.UtcNow.AddMinutes(11));
ret = await cache.Retrieve <TestCache>("Test4", null);
Assert.AreEqual(this, ret);
await cache.Store <TestCache>(true, "Test5", this, TimeSpan.FromMinutes(10), AmbientClock.Now.AddMinutes(11));
ret = await cache.Retrieve <TestCache>("Test5", null);
Assert.AreEqual(this, ret);
await cache.Store <TestCache>(true, "Test6", this, TimeSpan.FromMinutes(60), AmbientClock.UtcNow.AddMinutes(10));
ret = await cache.Retrieve <TestCache>("Test6", null);
Assert.AreEqual(this, ret);
ret = await cache.Retrieve <TestCache>("Test6", TimeSpan.FromMinutes(10));
Assert.AreEqual(this, ret);
await Eject(cache, 50);
await cache.Clear();
ret = await cache.Retrieve <TestCache>("Test6", null);
Assert.IsNull(ret);
}
}
public async Task CacheDoubleExpiration()
{
IAmbientCache localOverride = new BasicAmbientCache();
using (AmbientClock.Pause())
using (ScopedLocalServiceOverride <IAmbientCache> localCache = new ScopedLocalServiceOverride <IAmbientCache>(localOverride))
{
string keyName1 = nameof(CacheDoubleExpiration) + "1";
string keyName2 = nameof(CacheDoubleExpiration) + "2";
string keyName3 = nameof(CacheDoubleExpiration) + "3";
string keyName4 = nameof(CacheDoubleExpiration) + "4";
string keyName5 = nameof(CacheDoubleExpiration) + "5";
// string keyName6 = nameof(CacheDoubleExpiration) + "6";
TestCache ret;
AmbientCache <TestCache> cache = new AmbientCache <TestCache>();
await cache.Store(true, keyName1, this, TimeSpan.FromMilliseconds(51));
await cache.Store(true, keyName2, this, TimeSpan.FromMilliseconds(50));
await cache.Store(true, keyName3, this, TimeSpan.FromSeconds(50));
await cache.Store(true, keyName4, this, TimeSpan.FromSeconds(50));
await cache.Store(true, keyName5, this, TimeSpan.FromSeconds(50));
// await cache.Store(true, keyName6, this, TimeSpan.FromSeconds(50));
ret = await cache.Retrieve <TestCache>(keyName2);
Assert.IsNotNull(ret);
await Eject(cache, 1); // this should eject 1 because it's the LRU item
ret = await cache.Retrieve <TestCache>(keyName2);
Assert.IsNotNull(ret);
AmbientClock.SkipAhead(TimeSpan.FromMilliseconds(100));
ret = await cache.Retrieve <TestCache>(keyName1); // this should return null even though we haven't ejected stuff because it's expired
Assert.IsNull(ret);
await Eject(cache, 2); // this should eject 2 because it's both expired, and 3 because it's the LRU item
ret = await cache.Retrieve <TestCache>(keyName1);
Assert.IsNull(ret);
ret = await cache.Retrieve <TestCache>(keyName2);
Assert.IsNull(ret);
ret = await cache.Retrieve <TestCache>(keyName3);
Assert.IsNull(ret);
ret = await cache.Retrieve <TestCache>(keyName4);
Assert.IsNotNull(ret);
ret = await cache.Retrieve <TestCache>(keyName5);
Assert.IsNotNull(ret);
//ret = await cache.Retrieve<TestCache>(keyName6);
//Assert.IsNotNull(ret);
await Eject(cache, 1); // this should eject 4, but only because it's the LRU item
ret = await cache.Retrieve <TestCache>(keyName4);
Assert.IsNull(ret);
ret = await cache.Retrieve <TestCache>(keyName5);
Assert.IsNotNull(ret);
//ret = await cache.Retrieve<TestCache>(keyName6);
//Assert.IsNotNull(ret);
}
}
public async Task CacheAmbient()
{
AmbientSettingsOverride localSettingsSet = new AmbientSettingsOverride(TestCacheSettingsDictionary, nameof(CacheAmbient));
using (new ScopedLocalServiceOverride <IAmbientSettingsSet>(localSettingsSet))
{
IAmbientCache localOverride = new BasicAmbientCache();
using (ScopedLocalServiceOverride <IAmbientCache> localCache = new ScopedLocalServiceOverride <IAmbientCache>(localOverride))
{
TestCache ret;
AmbientCache <TestCache> cache = new AmbientCache <TestCache>();
await cache.Store(true, "Test1", this);
await cache.Store(true, "Test1", this);
ret = await cache.Retrieve <TestCache>("Test1", null);
Assert.AreEqual(this, ret);
await cache.Remove <TestCache>(true, "Test1");
ret = await cache.Retrieve <TestCache>("Test1", null);
Assert.IsNull(ret);
await cache.Store(true, "Test2", this, null, DateTime.MinValue);
ret = await cache.Retrieve <TestCache>("Test2", null);
Assert.AreEqual(this, ret);
await Eject(cache, 2);
ret = await cache.Retrieve <TestCache>("Test2", null);
Assert.IsNull(ret);
await cache.Store(true, "Test3", this, TimeSpan.FromMinutes(-1));
ret = await cache.Retrieve <TestCache>("Test3", null);
Assert.IsNull(ret);
await cache.Store(true, "Test4", this, TimeSpan.FromMinutes(10), DateTime.UtcNow.AddMinutes(11));
ret = await cache.Retrieve <TestCache>("Test4", null);
Assert.AreEqual(this, ret);
await cache.Store(true, "Test5", this, TimeSpan.FromMinutes(10), DateTime.Now.AddMinutes(11));
ret = await cache.Retrieve <TestCache>("Test5", null);
Assert.AreEqual(this, ret);
await cache.Store(true, "Test6", this, TimeSpan.FromMinutes(60), DateTime.UtcNow.AddMinutes(10));
ret = await cache.Retrieve <TestCache>("Test6", null);
Assert.AreEqual(this, ret);
ret = await cache.Retrieve <TestCache>("Test6", TimeSpan.FromMinutes(10));
Assert.AreEqual(this, ret);
await Eject(cache, 50);
await cache.Clear();
ret = await cache.Retrieve <TestCache>("Test6", null);
Assert.IsNull(ret);
}
}
}
public async Task CacheSkipAndEmptyEject()
{
AmbientSettingsOverride localSettingsSet = new AmbientSettingsOverride(AllowEmptyCacheSettingsDictionary, nameof(CacheAmbient));
using (AmbientClock.Pause())
using (new ScopedLocalServiceOverride <IAmbientSettingsSet>(localSettingsSet))
{
IAmbientCache localOverride = new BasicAmbientCache();
using (ScopedLocalServiceOverride <IAmbientCache> localCache = new ScopedLocalServiceOverride <IAmbientCache>(localOverride))
{
string keyName1 = nameof(CacheExpiration) + "1";
string keyName2 = nameof(CacheExpiration) + "2";
string keyName3 = nameof(CacheExpiration) + "3";
//string keyName4 = nameof(CacheExpiration) + "4";
//string keyName5 = nameof(CacheExpiration) + "5";
//string keyName6 = nameof(CacheExpiration) + "6";
//string keyName7 = nameof(CacheExpiration) + "7";
TestCache ret;
AmbientCache <TestCache> cache = new AmbientCache <TestCache>();
await cache.Store(true, keyName1, this, TimeSpan.FromMilliseconds(100));
await cache.Store(true, keyName2, this, TimeSpan.FromMilliseconds(50));
await cache.Store(true, keyName3, this, TimeSpan.FromMilliseconds(100));
ret = await cache.Retrieve <TestCache>(keyName1);
Assert.IsNotNull(ret);
ret = await cache.Retrieve <TestCache>(keyName2, TimeSpan.FromMilliseconds(100));
Assert.IsNotNull(ret);
ret = await cache.Retrieve <TestCache>(keyName3);
Assert.IsNotNull(ret);
AmbientClock.SkipAhead(TimeSpan.FromMilliseconds(50));
await Eject(cache, 1); // this should eject 1 because it's the LRU timed, and the first timed entry for 2 because that's expired, but 2 should remain with a refreshed entry
ret = await cache.Retrieve <TestCache>(keyName1);
Assert.IsNull(ret);
ret = await cache.Retrieve <TestCache>(keyName2, TimeSpan.FromMilliseconds(100));
Assert.IsNotNull(ret);
ret = await cache.Retrieve <TestCache>(keyName3);
Assert.IsNotNull(ret);
await Eject(cache, 1); // this should skip 2 because it's bee refershed again and eject 3 because it's the LRU timed
ret = await cache.Retrieve <TestCache>(keyName1);
Assert.IsNull(ret);
ret = await cache.Retrieve <TestCache>(keyName2);
Assert.IsNotNull(ret);
ret = await cache.Retrieve <TestCache>(keyName3);
Assert.IsNull(ret);
// change key2 to be untimed
await cache.Store(true, keyName2, this);
await Eject(cache, 1); // this should skip over the timed entry for 2 but then eject it because it is untimed
}
}
}
public async Task CacheExpiration()
{
IAmbientCache localOverride = new BasicAmbientCache();
using (AmbientClock.Pause())
using (ScopedLocalServiceOverride <IAmbientCache> localCache = new ScopedLocalServiceOverride <IAmbientCache>(localOverride))
{
string keyName1 = nameof(CacheExpiration) + "1";
string keyName2 = nameof(CacheExpiration) + "2";
string keyName3 = nameof(CacheExpiration) + "3";
string keyName4 = nameof(CacheExpiration) + "4";
string keyName5 = nameof(CacheExpiration) + "5";
string keyName6 = nameof(CacheExpiration) + "6";
string keyName7 = nameof(CacheExpiration) + "7";
TestCache ret;
AmbientCache <TestCache> cache = new AmbientCache <TestCache>();
await cache.Store(true, keyName1, this, TimeSpan.FromMilliseconds(50));
await cache.Store(true, keyName1, this, TimeSpan.FromMilliseconds(51));
await cache.Store(true, keyName2, this);
await cache.Store(true, keyName2, this);
await cache.Store(true, keyName3, this, TimeSpan.FromMilliseconds(-51)); // this should never get cached because the time span is negative
await cache.Store(true, keyName3, this, TimeSpan.FromMilliseconds(-50)); // this should never get cached because the time span is negative
await cache.Store(true, keyName4, this);
await cache.Store(true, keyName4, this);
await cache.Store(true, keyName5, this, TimeSpan.FromMilliseconds(50));
await cache.Store(true, keyName5, this, TimeSpan.FromMilliseconds(50));
await cache.Store(true, keyName6, this, TimeSpan.FromMilliseconds(1000));
await cache.Store(true, keyName6, this, TimeSpan.FromMilliseconds(1000));
await cache.Store(true, keyName7, this, TimeSpan.FromMilliseconds(75));
await cache.Store(true, keyName7, this, TimeSpan.FromMilliseconds(1000));
ret = await cache.Retrieve <TestCache>(keyName1);
Assert.IsNotNull(ret);
ret = await cache.Retrieve <TestCache>(keyName2);
Assert.IsNotNull(ret);
ret = await cache.Retrieve <TestCache>(keyName3);
Assert.IsNull(ret);
ret = await cache.Retrieve <TestCache>(keyName4);
Assert.IsNotNull(ret);
ret = await cache.Retrieve <TestCache>(keyName5);
Assert.IsNotNull(ret);
ret = await cache.Retrieve <TestCache>(keyName6);
Assert.IsNotNull(ret);
ret = await cache.Retrieve <TestCache>(keyName7);
Assert.IsNotNull(ret);
await Eject(cache, 1); // this should eject 1 because it's the LRU timed and 2 because it's the LRU untimed
ret = await cache.Retrieve <TestCache>(keyName1);
Assert.IsNull(ret);
ret = await cache.Retrieve <TestCache>(keyName2);
Assert.IsNull(ret);
ret = await cache.Retrieve <TestCache>(keyName4);
Assert.IsNotNull(ret);
ret = await cache.Retrieve <TestCache>(keyName5);
Assert.IsNotNull(ret);
ret = await cache.Retrieve <TestCache>(keyName6);
Assert.IsNotNull(ret);
ret = await cache.Retrieve <TestCache>(keyName7);
Assert.IsNotNull(ret);
await Eject(cache, 1); // this should eject 5 because it's the LRU timed and 4 because it's the LRU untimed
ret = await cache.Retrieve <TestCache>(keyName4);
Assert.IsNull(ret);
ret = await cache.Retrieve <TestCache>(keyName5);
Assert.IsNull(ret);
ret = await cache.Retrieve <TestCache>(keyName6);
Assert.IsNotNull(ret);
ret = await cache.Retrieve <TestCache>(keyName7);
Assert.IsNotNull(ret);
AmbientClock.SkipAhead(TimeSpan.FromMilliseconds(100));
await Eject(cache, 1); // this should eject 6 because it's the LRU timed but not 7 because only the first entry is expired, and not untimed LRU
ret = await cache.Retrieve <TestCache>(keyName6);
Assert.IsNull(ret);
ret = await cache.Retrieve <TestCache>(keyName7);
Assert.IsNotNull(ret);
}
}