public void NullObservableFactoryThrowsArgumentNullException( Func <CancellationToken, Task <CancellationTokenSource> > resourceFactory) => Should.Throw <ArgumentNullException>(() => ObservableEx .Using <Unit, CancellationTokenSource>(resourceFactory, null));
public void NullResourceFactoryThrowsArgumentNullException( Func <CancellationTokenSource, IObservable <Unit> > observableFactory) => Should.Throw <ArgumentNullException>(() => ObservableEx.Using(null, observableFactory));