存根(...)收到带有(无参数)的意外消息(...) [英] Stub (...) received unexpected message (...) with (no args)
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问题描述
我尝试使用RR编写测试.我需要的是模型对象的存根.
I try to write a test using RR. What I need is a stub of a model object.
describe ApplicationController do
subject(:application_controller) { ApplicationController.new }
let(:messages) { ['a1', 'a2', 'a3' ] }
let(:model) { Object.new }
it 'should copy errors to flash' do
stub(model).error_messages { messages }
flash[:error] == nil
subject.copy_errors_to_flash(model)
flash[:error].should == messages
end
end
我得到的是
ApplicationController should copy errors to flash
Failure/Error: stub(model).error_messages { messages }
Stub #<Object:0x007ffaa803f930> received unexpected message :error_messages with (no args)
# ./spec/controllers/application_controller_spec.rb:10:in `block (2 levels) in <top (required)>'
我不知道我在做什么错.我想我遵循文档...
I have no idea what am I doing wrong. I think I follow the docs...
推荐答案
您正在此行的模型存根上调用方法'error_messages:
You're calling the method 'error_messages on the stub of your model on this line:
stub(model).error_messages { messages }
我认为您实际上想在这里做其他事情,很可能是这样:
I presume that you actually want to do something else here, most likely:
model.should_receive(:error_messages).and_return(messages)
这会为error_messages创建一个存根方法,并且每当您的规格测试调用model.error_messages时,就会使用您的message数组进行响应
which creates a stub method for error_messages and will respond with your messages array whenever your spec tests calls model.error_messages
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