public void TestContains()
{
using (var externalCache = new ExternalCache())
{
Assert.IsFalse(externalCache.Contains("Item 1"));
var item = new Dynamo();
item["P1"] = "Property 1";
externalCache.Add("Item 1", item, new TimeSpan(10000000)); // 10000 ticks = 1ms
Assert.IsTrue(externalCache.Contains("Item 1"));
}
}
public void TestRemove()
{
using (var externalCache = new ExternalCache())
{
var item = new Dynamo();
item["P1"] = "Property 1";
externalCache.Add("Item 1", item);
Assert.IsTrue(externalCache.Contains("Item 1"));
externalCache.Remove("Item 1");
Assert.IsFalse(externalCache.Contains("Item 1"));
}
}
public void TestStressConcurrentAddGetAndRemove()
{
const int threadCount = 4;
const int loops = 1000;
var totalLoops = 0;
var threads = new Thread[threadCount];
for (var i = 0; i < threadCount; i++)
{
(threads[i] = new Thread(context =>
{
using (var externalCache = new ExternalCache())
{
for (var j = 0; j < loops; j++)
{
using (var item = new ExternalCacheItem())
{
item["P1"] = "Property " + j;
externalCache.Add($"Item {(int) context}-{j}", item);
}
Assert.IsTrue(externalCache.Contains($"Item {(int)context}-{j}"));
var returnedItem = (ExternalCacheItem)externalCache.Get($"Item {(int) context}-{j}");
Assert.AreEqual("Property " + j, returnedItem["P1"]);
externalCache.Remove($"Item {(int)context}-{j}");
Assert.IsFalse(externalCache.Contains($"Item {(int)context}-{j}"));
Interlocked.Increment(ref totalLoops);
}
}
})).Start(i);
}
foreach (var thread in threads)
{
thread.Join();
}
Assert.AreEqual(threadCount * loops, totalLoops);
}
