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POHow do I write a functional test for the update action in a controller?
 

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  1. POHow do I write a functional test for the update action in a controller?
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    <p>With actions such as <code>:show</code> and <code>:edit</code>, I can just http GET them. But since the <code>:update</code> action has no template, I can't issue a GET without it complaining about the missing template. That makes sense, so I tried to directly call <code>@controller.update</code> in my test, but I get an error on the <code>respond_to</code> block:</p> <pre><code>NoMethodError: undefined method `parameters' for nil:NilClass </code></pre> <p>How do I specify the requested format to be <code>:html</code>? I am passing in a parameter hash for the model's attributes, FWIW. Thanks for any advice.</p> <p>Edit: I since tried invoking @controller.update (after setting params[]) in the console and that error quoted above bubbled up from here: /actionpack-2.3.8/lib/action_controller/mime_responds.rb</p> <p>I also tried PUT instead of GET, but still got "Missing Template update.erb". </p> <p>Also, I managed to find out that this error of missing template is caused by having anything other than a redirect or render in the code block marked HERE:</p> <pre><code>respond_to do |format| if @model.update_attributes(params[:model]) flash[:notice] = 'note!' format.html { **HERE** } ... </code></pre> <p>I have a method call there that is just a conditional to redirect to the proper place. I can, in principle, understand why it might look for a template to render since it may not be aware that there is a redirect further downstream, but what I don't understand is how come my web application doesn't run into the same error as my functional test.</p>
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