public void Execute_ShouldCallCallback(
object expected,
TestSchedulers schedulers)
{
//arrange
object actual = null;
var value = Observable.Return(expected, ImmediateScheduler.Instance);
var sut = new ObservableMvvmCommand <object, object>(
o => value,
schedulers,
schedulers,
"name",
new AlwaysTrueCanExecuteStrategy <object>(),
doObserver: () => Observer.Create <object>(o => actual = o),
doScheduler: ImmediateScheduler.Instance);
//act
sut.Execute(null);
schedulers.AdvanceBy(200);
//assert
actual.Should().Be(expected);
}
public void Show_OnePriceUpdate_OnePrice()
{
var modelMock = new Mock <IMyModel>();
var schedulers = new TestSchedulers();
var viewModel = new MyViewModel(modelMock.Object, schedulers);
var pricesSubject = new Subject <decimal>();
modelMock.Setup(m => m.PriceStream(It.Is <string>(symbol => symbol == "AAPL"))).Returns(pricesSubject);
viewModel.Show("AAPL");
schedulers.ThreadPool.Schedule <object>(null, (_, a) =>
{
pricesSubject.OnNext(10);
return(Disposable.Empty);
});
schedulers.ThreadPool.AdvanceTo(1);
schedulers.Dispatcher.AdvanceTo(1);
Assert.AreEqual(1, viewModel.Prices.Count);
}
public void Execute_ShouldBeCalledWithArg(
IObservable <object> value,
object arg,
TestSchedulers schedulers)
{
//arrange
object actual = null;
var sut = new ObservableMvvmCommand <object, object>(o =>
{
actual = o;
return(value);
},
schedulers,
schedulers,
"name",
new AlwaysTrueCanExecuteStrategy <object>());
//act
sut.Execute(arg);
schedulers.AdvanceBy(200);
//assert
actual.Should().Be(arg);
}
public MyViewModel(IMyModel myModel, TestSchedulers schedulers)
{
_myModel = myModel;
_schedulers = schedulers;
_prices = new ObservableCollection <decimal>();
}