Michael's musings

Wed, 19 Sep 2007

how to test Ruby On Rails RESTful

I had a bit of a mystery while trying to test out how RESTful routing of Ruby on Rails worked.

My controller looked like:

    respond_to do |format|
      format.html # show.rhtml
      format.yml  {
	text = ''

	text = boottime.logical_host.macaddress + ":\r\n"
        text += "  geometryX: " + lastcc.geometryX.to_s + "\r\n"
        text += "  geometryY: " + lastcc.geometryY.to_s + "\r\n"
        render :context_type => "text/yaml", :text => text
      }
    end

and my test case looked like:

    get :show, :id => mac

When I first tried doing:

    get :show, :id => mac+'.yml'

it failed to work. That's now how to do it. I went through many attempts, and finally realized that the extension should be "yaml" not, "yml" (and in the respond_to) as well.

    get :show, :id => mac, :format => 'yaml'

    assert @response.body.include?("geometryX")
    assert @response.body.include?("geometryY")

works. Silly me.