使用Rspec存根链式方法 [英] Stubbing Chained Methods with Rspec

问题描述

我想调用一个只会返回一条记录的named_scope，但是named_scope返回一个数组，这没什么大不了的，因为我可以将其与.first链接起来:

I want to call a named_scope that will only return one record, but the named_scope returns an array, that's not a big deal as I can just chain it with .first:

Model.named_scope(param).first

这有效，我苦苦挣扎的是如何对链接的电话进行存根处理.有人对我如何使用Rspec模拟实现这一目标有参考或答案吗?

and this works, what I am struggling with is how to stub the chained call. Does anyone have a reference or an answer on how I would go about achieving this with Rspec mocking?

推荐答案

我发现了一些问题.

Client.stub!(:named_scope).and_return(@clients = mock([Client]))
@clients.stub!(:first).and_return(@client = mock(Client))

这允许我给控制器打电话:

which allows me to call my controller:

@client = Client.named_scope(param).first

它可以工作，但是有更好的解决方案吗?

It works, but is there a better solution?

rspec 1.2.6的发布使我们可以使用stub_chain，这意味着它现在可以是:

The release of rspec 1.2.6 allows us to use stub_chain meaning it can now be:

Client.stub_chain(:named_scope, :chained_call).and_return(@clients = [mock(Client)])

这是我的头等大事，一如既往地检查api的细节:)

This was top of my head, as always check the api for specifics :)

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