public void Should_Throw_When_CommandIsNull()
{
var settingsStore = Substitute.For <ISettingsStore>();
var handler = new MoveUpCommandHandler(settingsStore);
handler.Handle(null);
}
public void Should_MoveUp_And_Save()
{
var settingsStore = Substitute.For <ISettingsStore>();
var item = Substitute.For <Item>();
var command = new MoveUpCommand(item);
var handler = new MoveUpCommandHandler(settingsStore);
handler.Handle(command);
item.Received().MoveUp();
settingsStore.Received().TrySave();
}