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POrspec2: Fake params and request.headers for helpers
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  1. POrspec2: Fake params and request.headers for helpers
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    copied!<p>I've got an Rails 3 helper, which returns code depending on the params and request.headers. I've tried to mock them, but didn't succeed. My latest try:</p> <pre><code>require 'spec_helper' describe ApplicationHelper, "#banner" do before do @b728 = Factory :banner, :code => '&lt;div style="width: 728px">:(clickref)&lt;/div>', :width => 728, :height => 90 @b160 = Factory :banner, :code => '&lt;div style="width: 160px">:(clickref)&lt/div>', :width => 160, :height => 600 Factory :ad_sense_channel, :key => "country", :value => nil, :ad_sense_id => 1 Factory :ad_sense_channel, :key => "country", :value => "de", :ad_sense_id => 2 # More ad_sense_channel factories here... end it "should return b728 for 728x90, left position and DictionariesController, German language and a guest and a German IP" do helper.stub(:params) { {:controller => "dictionaries", :action => "index"} } helper.stub(:request) do request = double('request') request.stub(:headers) { {"Accept-Language" => "de-DE, kr"} } request end @detected_location = DetectedLocation.new("193.99.144.80") banner(728, 90, "left").should eq('&lt;div style="width: 728px">11+2+21+31+41&lt;/div>') end end </code></pre> <p>I still raises an exception:</p> <pre><code>NameError: undefined local variable or method `params' for # # ./app/helpers/application_helper.rb:7:in `banner'</code></pre> <p>Solution: Thanks to zetetic, my spec now reads like this:</p> <pre><code> controller.params = {:controller => "dictionaries", :action => "index"} controller.request.stub(:headers) { {"Accept-Language" => "de-DE, kr"} } @detected_location = DetectedLocation.new("193.99.144.80") helper.banner(728, 90, "left").should eq('11+2+21+31+41') </code></pre>
 

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