public async Task OnEnterAsyncShouldUpdateState()
{
var context = A.Dummy <INavigationContext>();
context.State.MusicName = "sad_story";
var sut = new MusicNode("open_sky", null);
await sut.EnterAsync(context);
context.State.MusicName.Should().Be("open_sky");
}
public async Task OnEnterAsyncShouldReturnLastMusicName()
{
var context = A.Dummy <INavigationContext>();
context.State.MusicName = "enigma";
var sut = new MusicNode("free_mind", null);
var ret = await sut.EnterAsync(context);
ret.Should().Be("enigma");
}
public async Task ShouldRaiseEventWithStateArg(string stateArg)
{
var context = A.Dummy <INavigationContext>();
context.State.MusicName = "theme";
var invoker = new TestInvoker(context);
var sut = new MusicNode("goodbye", null);
await sut.EnterAsync(context, stateArg);
invoker.ShouldContainSingle <IMusicChangeEvent>(
i => i.Should().BeEquivalentTo(new { MusicName = stateArg })
);
}
public async Task OnEnterAsyncShouldNotRaiseEventIfMusicWasNotChanged()
{
var context = A.Dummy <INavigationContext>();
context.State.MusicName = "crime_fighter";
var invoker = new TestInvoker(context);
var sut = new MusicNode("crime_fighter", null);
var ret = await sut.EnterAsync(context);
ret.Should().Be("crime_fighter");
invoker.Count.Should().Be(0);
}