public void Initialize()
{
_resourceReleaser = new ResourceReleaserImpl <int>(_ => { });
_dataSubscriber = new MockDataSubscriber <IList <CloseableReference <int> > >();
_settableDataSource1 = SettableDataSource <int> .Create <int>();
_settableDataSource2 = SettableDataSource <int> .Create <int>();
_listDataSource = ListDataSource <int> .Create(_settableDataSource1, _settableDataSource2);
_ref1 = CloseableReference <int> .of(1, _resourceReleaser);
_ref2 = CloseableReference <int> .of(2, _resourceReleaser);
_runtimeException = new Exception();
_listDataSource.Subscribe(_dataSubscriber, CallerThreadExecutor.Instance);
}
