public void CanGetItemBeforeExpiration()
{
TimedEventMock timedEventMock = null;
SystemClockMock clock = new SystemClockMock();
TimerFactoryMock timerFactory = new TimerFactoryMock(
timedEventMockFactory: (interval, runOnce, action) => {
TimedEventMock result = new TimedEventMock(interval, runOnce, action);
timedEventMock = result;
return(result);
},
timerMockFactory: null
);
const string key = "test_key";
const string value = "test_value";
clock.UtcNow = DateTime.Now;
TimeSpan expiration = TimeSpan.FromHours(1);
using (InMemoryCache <string> cache = new InMemoryCache <string>(clock, timerFactory)) {
cache.Set(key, value, expiration);
clock.UtcNow += expiration - TimeSpan.FromMinutes(30);
timedEventMock.Tick();
Assert.IsTrue(cache.HasItemWithKey(key), $"Cache does not contain entry with key '{key}'.");
string actual = cache.Get(key);
Assert.AreEqual(value, actual);
}
}
public void CanNotGetItemAfterExpiration()
{
TimedEventMock timedEventMock = null;
SystemClockMock clock = new SystemClockMock();
TimerFactoryMock timerFactory = new TimerFactoryMock(
timedEventMockFactory: (interval, runOnce, action) => {
TimedEventMock result = new TimedEventMock(interval, runOnce, action);
timedEventMock = result;
return(result);
},
timerMockFactory: null
);
const string key = "test_key";
const string value = "test_value";
clock.UtcNow = DateTime.Now;
TimeSpan expiration = TimeSpan.FromHours(1);
using (InMemoryCache <string> cache = new InMemoryCache <string>(clock, timerFactory)) {
cache.Set(key, value, expiration);
clock.UtcNow += expiration + TimeSpan.FromSeconds(5);
timedEventMock.Tick();
Assert.IsFalse(cache.HasItemWithKey(key), $"Cache contains entry with key '{key}'.");
Assert.ThrowsException <KeyNotFoundException>(() => cache.Get(key));
}
}
public void CanInvokeExpirationMethodWhenItemExpires()
{
TimedEventMock timedEventMock = null;
SystemClockMock clock = new SystemClockMock();
TimerFactoryMock timerFactory = new TimerFactoryMock(
timedEventMockFactory: (interval, runOnce, action) => {
TimedEventMock result = new TimedEventMock(interval, runOnce, action);
timedEventMock = result;
return(result);
},
timerMockFactory: null
);
const string key = "test_key";
const string value = "test_value";
clock.UtcNow = DateTime.Now;
TimeSpan expiration = TimeSpan.FromHours(1);
bool expirationMethodInvoked = false;
bool expirationEventIsFiredForItem = false;
using (InMemoryCache <string> cache = new InMemoryCache <string>(clock, timerFactory)) {
cache.TtlExpired += (o, expiredValue) => {
if (expiredValue == value)
{
expirationEventIsFiredForItem = true;
}
};
cache.Set(key, value, expiration, (x) => { expirationMethodInvoked = true; });
clock.UtcNow += expiration + TimeSpan.FromSeconds(5);
timedEventMock.Tick();
Assert.IsTrue(expirationEventIsFiredForItem, $"{nameof(cache.TtlExpired)} is not fired for the expired item.");
Assert.IsTrue(expirationMethodInvoked, "The method set to be execute on expiration of the item has not invoked.");
}
}
public void CanDisposeProperly()
{
TimedEventMock timedEventMock = null;
SystemClockMock clock = new SystemClockMock();
TimerFactoryMock timerFactory = new TimerFactoryMock(
timedEventMockFactory: (interval, runOnce, action) => {
TimedEventMock result = new TimedEventMock(interval, runOnce, action);
timedEventMock = result;
return(result);
},
timerMockFactory: null
);
using (InMemoryCache <string> cache = new InMemoryCache <string>(clock, timerFactory)) {
//do nothing here
}
Assert.IsTrue(timedEventMock.DisposeInvoked, $"Dispose method is not invoked on {nameof(timedEventMock)}.");
}
