public void ValueCacheIsNotStatic()
{
var es1 = new EvaluationScheduler(degreeOfParallelism: 1);
var es2 = new EvaluationScheduler(degreeOfParallelism: 1);
var key = "key";
var counter = 0;
var res1 = es1.ValueCacheGetOrAdd(key, () => Interlocked.Increment(ref counter));
var res2 = es2.ValueCacheGetOrAdd(key, () => Interlocked.Increment(ref counter));
XAssert.AreEqual(2, counter);
XAssert.AreEqual(1, res1);
XAssert.AreEqual(2, res2);
}
public void ValueCacheGetOrAddInvokesFactoryOnlyOnce(int count)
{
var evalScheduler = new EvaluationScheduler(degreeOfParallelism: 1);
var counter = 0;
var result = Enumerable
.Range(1, count)
.ToArray()
.AsParallel()
.Select(i => evalScheduler.ValueCacheGetOrAdd("some-key", () => Interlocked.Increment(ref counter)))
.ToArray();
XAssert.AreEqual(1, counter);
var expectedResult = Enumerable.Range(1, count).Select(i => counter).ToArray();
XAssert.ArrayEqual(expectedResult, result);
}