public void TestFetch__KeyPresent()
{
object key = new object();
object value = new object();
KeyValueCache <object, object> cache = new KeyValueCache <object, object>();
cache.Fetch(key, () => value);
bool called2ndTime = false;
object fetchedValue = cache.Fetch(key, delegate
{
called2ndTime = true;
return(null);
});
Assert.Same(value, fetchedValue);
Assert.False(called2ndTime);
}
public void TestFetch__CreateValueNull()
{
KeyValueCache <object, object> cache = new KeyValueCache <object, object>();
ArgumentNullException ex = Assert.Throws <ArgumentNullException>(delegate
{
cache.Fetch(new object(), null);
});
Assert.Equal("createValue", ex.ParamName);
}
public void TestFetch__KeyNotPresent()
{
object key = new object();
object value = new object();
KeyValueCache <object, object> cache = new KeyValueCache <object, object>();
object fetchedValue = cache.Fetch(key, () => value);
Assert.Same(value, fetchedValue);
}