public void UpdateValueTest()
{
CacheItem cacheItem = new CacheItem("key", 3);
Assert.AreEqual(3, (int)cacheItem.Value, "value");
cacheItem.Value = "hello";
Assert.AreEqual("hello", (string)cacheItem.Value, "value");
}
public void CreateTest()
{
CacheItem cacheItem = new CacheItem("key", 3);
Assert.AreEqual("key", cacheItem.Key, "Key");
Assert.AreEqual(3, (int)cacheItem.Value, "value");
Assert.IsTrue(cacheItem.LastAccessed <= DateTime.Now, "Now");
Assert.IsTrue(cacheItem.LastAccessed > DateTime.Today, "Today");
}
public void UpdateLastAccessedTest()
{
CacheItem cacheItem = new CacheItem("key", 3);
DateTime cacheItemCreated = cacheItem.LastAccessed;
Thread.Sleep(100);
cacheItem.UpdateLastAccessed();
Assert.IsTrue(cacheItem.LastAccessed > cacheItemCreated);
}
/// <summary>
/// Write a value to the cache
/// </summary>
/// <param name="key">the cache key</param>
/// <param name="data">the value cached</param>
public void Write(string key, object data)
{
if (this.cacheData.ContainsKey(key))
{
this.cacheData[key].Value = data;
}
else
{
CacheItem newCacheItem = new CacheItem(key, data);
this.cacheData.Add(key, newCacheItem);
}
}
/// <summary>
/// Return true if the item has expired, is past the timeout
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
private bool ItemHasTimedOut(CacheItem item)
{
return item.LastAccessed < DateTime.Now - this.Timeout;
}