有没有办法用Jasmine来验证间谍执行的顺序？ [英] Is there a way to verify the order of spy executions with Jasmine?

问题描述

我有两个被设置为Jasmine间谍的对象：

I've got two objects that have been set up as spies with Jasmine:

spyOn(obj, 'spy1');
spyOn(obj, 'spy2');

我需要验证对 spy1的调用在调用 spy2 之前来。我可以检查它们是否都被调用：

I need to verify that calls to spy1 come before calls to spy2. I can check if both of them are called:

expect(obj.spy1).toHaveBeenCalled();
expect(obj.spy2).toHaveBeenCalled();

但即使 obj.spy2（）。是否有一种简单的方法可以验证一个人是否在另一个之前被调用？

but this will pass even if obj.spy2() was called first. Is there an easy way of verifying that one was called before the other?

推荐答案

看起来茉莉花的人看过这篇帖子或其他人喜欢它，因为此功能存在。我不知道它已经存在了多长时间 - 所有的API文档都回到2.6提到它，尽管他们的档案旧版文档都没有提到它。

Looks like the Jasmine folks saw this post or others like it, because this functionality exists. I'm not sure how long it's been around -- all of their API docs back to 2.6 mention it, though none of their archived older style docs mention it.

toHaveBeenCalledBefore（ expected ）

期望实际值（a 间谍）在另一个间谍之前被召唤。

toHaveBeenCalledBefore(expected)
expect the actual value (a Spy) to have been called before another Spy.

参数：

Name        Type    Description
expected    Spy     Spy that should have been called after the actual Spy.

您示例的失败似乎是在间谍spy2之前调用了预期的间谍spy1 。

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