public void ImageExplorerViewModel_SyncsIntialItemsFromCache_WhenItemsAvailable() =>
new TestScheduler().With(scheduler =>
{
var source = new SourceCache <ImageHandle, string>(x => x.LoadingSettings.FilePath);
source.AddOrUpdate(GetDummyHandle("foo"));
var sut = new ImageExplorerViewModel(source.AsObservableCache());
sut.Activator.Activate();
scheduler.AdvanceBy(2);
Assert.Equal(1, sut.Children.Count);
});
public void ImageExplorerViewModel_SelectionsObservableFires_WhenNewItemSelected() =>
new TestScheduler().With(scheduler =>
{
bool success = false;
var source = new SourceCache <ImageHandle, string>(x => x.LoadingSettings.FilePath);
source.AddOrUpdate(GetDummyHandle("foo"));
source.AddOrUpdate(GetDummyHandle("bar"));
var sut = new ImageExplorerViewModel(source.AsObservableCache());
sut.Activator.Activate();
scheduler.AdvanceBy(2);
sut.Selections.Where(x => x.LoadingSettings.FilePath == "bar").Subscribe(_ => success = true);
sut.SelectNext.Execute().Subscribe();
scheduler.AdvanceBy(2);
Assert.True(success);
});
public void ImageExplorerViewModel_SelectNextSelectsNextItem_WhenAtLeastTwoItemsAvailable() =>
new TestScheduler().With(scheduler =>
{
var source = new SourceCache <ImageHandle, string>(x => x.LoadingSettings.FilePath);
source.AddOrUpdate(GetDummyHandle("foo"));
source.AddOrUpdate(GetDummyHandle("bar"));
var sut = new ImageExplorerViewModel(source.AsObservableCache());
sut.Activator.Activate();
scheduler.AdvanceBy(2);
Assert.Equal("foo", sut.SelectedItem.ExplorerItem.FilePath);
sut.SelectNext.Execute().Subscribe();
scheduler.AdvanceBy(1);
Assert.Equal("bar", sut.SelectedItem.ExplorerItem.FilePath);
});
