Testing Rails' new strong parameters

Question

I've just upgraded to Rails 4, and I have started using strong parameters over protected attributes. I typically tested a models protected attributes using unit tests, but I am unsure how to test now that this functionality has been moved to the controller.

I am using rspec for testing. Any advice would be great.

varatis · Accepted Answer · 2013-07-02 15:52:58Z

3

Why not just do

post :create, model: { someattrs }
response.response_code.should == 400

In your controller spec?

answered Jul 2, 2013 at 15:52

varatis

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2 Comments

Max Over a year ago

This is what I will likely do. I am just curious if there are any established best practices out there. Thanks for the answer.

varatis Over a year ago

@Max Strong params are controller behavior, this is generally the best practice in testing response from controllers. Also check out edgeapi.rubyonrails.org/classes/ActionController/…, where it says that the strong params should return 400 errors. Seems like the best way to test it.

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