public void Test_CheckReceivedCalls_CheckingEventSubscriptions()
{
var command = Substitute.For <ICommand>();
var watcher = new CommandWatcher(command);
command.Executed += Raise.Event();
Assert.IsTrue(watcher.DidStuff);
}
public void Test_CheckReceivedCalls_MakeSureWatcherSubscribesToCommandExecuted()
{
var command = Substitute.For <ICommand>();
var watcher = new CommandWatcher(command);
// 不推荐这种方法。
// 更好的办法是测试行为而不是具体实现。
command.Received().Executed += watcher.OnExecuted;
command.Received().Executed += Arg.Any <EventHandler>();
}