public void TestWatcherFileFindEventAddItemIntoObservableCollection()
{
//given
var watcher = new Mock<IFolderWatcher>();
var file = new StockFile();
var vm = new MainViewModel(watcher.Object);
//when
watcher.Raise(w => w.FileFound += null, new FileFoundEventHandlerArgs {File = file});
//then
Assert.That(vm.Files.Count, Is.EqualTo(1));
Assert.That(vm.Files[0], Is.SameAs(file));
}
public void TestStartLookup()
{
//given
var timespan = TimeSpan.FromSeconds(1);
var path = "path";
var watcher = new Mock<IFolderWatcher>();
var vm = new MainViewModel(watcher.Object);
//when
vm.StartLookup(timespan, path);
//then
watcher.Verify(w => w.StartLookup(timespan, path), Times.Once());
}