在我的看法中,我做了类似的事情,但是,除非我把它添加到原型中,而且在我提出看法之前,我无法得到适当的工作。

这里,我最终的工作是:

view.js

view = Backbone.View.extend({
   initialize: function(){
      this.collection.bind("change", this.onChange, this);
   },
   ...
   onChange: function(){
      console.log("Called...");
   }
});

jasmine_spec.js

describe("Test Event", function(){
   it("Should spy on change event", function(){
      var spy = spyOn(view.prototype,  onChange ).andCallThrough()
      var v = new view( {collection: some_collection });

      // Trigger the change event
      some_collection.set();

      expect(spy).toHaveBeenCalled()
   });
});

我首先将使用<代码>至HaveBeenCalled(),在您开始工作之后,对<代码>至HaveBeenCalledWith()进行测试。

www.un.org/Depts/DGACM/index_spanish.htm

3. 修改现行试验守则如下:

it("should show notes", function() {
   var category = new Category;

   spyOn(NotesDialog.prototype, "showNotes");
   var notes_dialog = new NotesDialog({model: category})

   category.trigger("notesFetched", "[]");
   expect(notes_dialog.showNotes).toHaveBeenCalledWith("[]");
})

在你最初的法典中,你所呼吁的方法就是在约束性关闭中界定的,而你正在做的就是在笔记中。 通过将间谍移至原型,你在进行之前就替换了这种间谍,因此对封闭装置进行约束,以控制间谍而不是原始方法。

Using a spy means to replace the function you spying on. So in your case you replace the bind function with the spy, so the internal logic of the original spy will not call anymore. And thats the right way to go cause you dont wanna test that Backbones bind is work but that you have called bind with the specific paramaters "notesFetched", this.showNotes, this.

因此,如何检验。 如你所知,每个间谍都有<代码>至HaveBeenCalledWith(标记)方法。 在你看来,它应当这样做:

expect(category.bind).toHaveBeenCalledWith("notesFetched", category. showNotes, showNotes)

So how to test that trigger the "notesFetched" on the model will call your showNotes function. Every spy saves the all parameters he was called with. You can access the last one with mostRecentCall.args.

category.bind.mostRecentCall.args[1].call(category.bind.mostRecentCall.args[2], "[]");
expect(notes_dialog.showNotes).toHaveBeenCalledWith("[]");

mostRecentCall.args[1] is the the second argument in your bind call (this.showNotes). mostRecentCall.args[2] is the the third argument in your bind call (this).

由于我们测试了<代码>bind,并用你的公开方法showNotes/code>,你也可以直接打电话到贵国的公开方法showNotes,但有时通过的论点可以外部查阅,以便你能够使用所显示的方式。