public void GetValue_WhenTheCacheIsFull_ShouldPushTheLeastRecentlyUsedOff()
{
var service = MockRepository.GenerateMock<IService>();
var cache = new RefreshingCache(service, 2, 1);
service.Expect(x => x.GetValue("key1"))
.Return(string.Empty)
.Repeat.Times(2);
service.Expect(x => x.GetValue("key2"))
.Return(string.Empty)
.Repeat.Times(1);
service.Expect(x => x.GetValue("key3"))
.Return(string.Empty)
.Repeat.Times(1);
cache.GetValue("key1");
cache.GetValue("key2");
cache.GetValue("key3");
cache.GetValue("key1");
service.VerifyAllExpectations();
}
public void RefreshingCacheIndexer_SimpleIntegerValue_ShouldPass()
{
var systemTime = new Time();
var cache = new RefreshingCache <int, string>(CacheSize, ExpirationTime, new DataStorage(), systemTime);
var actual = cache[0];
Assert.Equal("0", actual);
}
public void WhenGetValueTheFirstTime_ShouldCallTheRemoteService()
{
var service = MockRepository.GenerateMock<IService>();
var cache = new RefreshingCache(service, 5, 5);
cache.GetValue("Test");
service.AssertWasCalled(x => x.GetValue("Test"));
}
public void WhenGetValueMoreThanOneTime_ShouldOnCallTheProxyOnce()
{
var service = MockRepository.GenerateMock<IService>();
var cache = new RefreshingCache(service, 5, 5);
service.Expect(x => x.GetValue("Test"))
.Return(string.Empty)
.Repeat.Once();
cache.GetValue("Test");
service.VerifyAllExpectations();
}
public void RefreshingCacheIndexer_WhenCacheSizeMoreThanMaxSize_ShouldPass()
{
var systemTime = new Time();
var cache = new RefreshingCache <int, string>(CacheSize, ExpirationTime, new DataStorage(), systemTime);
for (int i = 0; i < 20; ++i)
{
++systemTime.CurrentTime;
var temp = cache[i];
}
Assert.Equal(CacheSize, cache.Count);
}
public void GetValue_WhenTheCacheIsStale_ShouldCallTheRemoteProxy()
{
var service = MockRepository.GenerateMock<IService>();
var cache = new RefreshingCache(service, 5, 1);
service.Expect(x => x.GetValue("Test"))
.Return(string.Empty)
.Repeat.Twice();
cache.GetValue("Test");
Thread.Sleep(1000);
cache.GetValue("Test");
service.VerifyAllExpectations();
}
public void RefreshingCacheIndexer_WhenTimeIsUp_ShouldPass()
{
var systemTime = new Time();
var dataStorage = new DataStorage();
string temp;
var cache = new RefreshingCache <int, string>(CacheSize, ExpirationTime, dataStorage, systemTime);
for (int i = 0; i < 16; ++i)
{
++systemTime.CurrentTime;
temp = cache[i];
}
systemTime.CurrentTime = TimeMoreThanMax;
//we add new data with key "17". It replaces data with key "0" because our time expired.
temp = cache[17];
//And when we try get data with key "0", cache gets it from dataStorage, because it was deleted early.
temp = cache[0];
Assert.Equal("0", dataStorage.LastData);
}