public void ACacheWithASingleEntryShouldAlwaysReturnThatEntry()
{
var cache = new InstanceCache <string>(1, UniqueStringCreator);
var firstInstance = cache.GetNext();
for (int i = 0; i < 100; i++)
{
Assert.AreEqual(firstInstance, cache.GetNext());
}
}
public void ACacheWithThreeeEntriesShouldAlwaysReturnThreeDistinctValues()
{
var cache = new InstanceCache <string>(3, UniqueStringCreator);
var list = new List <string>();
for (int i = 0; i < 100; i++)
{
list.Add(cache.GetNext());
}
int countOfDistinctEntries = list.Distinct().Count();
Assert.AreEqual(countOfDistinctEntries, 3);
}
public void TheInstanceCreatorMustReturnAValue()
{
var cache = new InstanceCache <string>(1, () => null);
Assert.Throws <InvalidOperationException>(() => cache.GetNext());
}