spock - 如何使用Spock框架进行参数捕获？

Question

我有一些类似Java的东西:

public interface EventBus{
    void fireEvent(GwtEvent<?> event);
}


public class SaveCommentEvent extends GwtEvent<?>{
    private finalComment oldComment;
    private final Comment newComment;

    public SaveCommentEvent(Comment oldComment,Comment newComment){
        this.oldComment=oldComment;
        this.newComment=newComment;
    }

    public Comment getOldComment(){...}
    public Comment getNewComment(){...}
}

并测试如下代码:

  def "...."(){
     EventBus eventBus=Mock()
     Comment oldComment=Mock()
     Comment newCommnet=Mock()

     when:
         eventBus.fireEvent(new SaveCommentEvent(oldComment,newComment))

     then:
         1*eventBus.fireEvent(
                                {
                                   it.source.getClass()==SaveCommentEvent;
                                   it.oldComment==oldComment;
                                   it.newComment==newComment
                                 }
                              )            
}

我想验证是否使用类型 eventBus.fireEvent(..)和构造参数 SaveCommentEvent和 oldComment的Event调用了 newComment。

代码运行无错误，但问题是:

更改封包内容后

{
   it.source.getClass()==SaveCommentEvent;
   it.oldComment==oldComment;  //old==old
   it.newComment==newComment   //new==new
}

至

 {
    it.source.getClass()==Other_Class_Literal;
    it.oldComment==newComment;  //old==new
    it.newComment==oldComment   //new==old
  }

仍然，代码运行没有错误？显然，闭包没有满足我的要求，所以问题是:如何进行参数捕获？

Answer 1

我知道了:

    SaveCommentEvent firedEvent

    given:
     ...

    when:
     ....

    then:
    1 * eventBus.fireEvent(_) >> {arguments -> firedEvent=arguments[0]}
    firedEvent instanceof SaveModelEvent
    firedEvent.newModel == newModel
    firedEvent.oldModel == oldModel