Pastable version of route spec'ing

<pre class='prettyprint' language='ruby'>&gt;&gt; path
=&gt; &quot;/:foo/bar/:baz&quot;
&gt;&gt; params
=&gt; {:foo=&gt;&quot;FOO&quot;, :baz=&gt;&quot;BAZ&quot;}
&gt;&gt; path.split(&quot;/&quot;).map { |v| (params[v[1,v.length].to_sym] if !v.empty? &amp;&amp; v[0] == ':'[0]) || v }.join('/')
=&gt; &quot;/FOO/bar/BAZ&quot;
&gt;&gt;</pre>
<pre class='prettyprint' language='ruby'>def interpreted_route_path(path, params)
    path.split('/').map { |v| (params[v[1,v.length].to_sym] if !v.empty? &amp;&amp; v[0] == ':'[0]) || v }.join('/')
  end

# To check map.root:
  # use as: check_routing_for(:route_name =&gt; 'root', :route_path =&gt; '/', :controller =&gt; 'foo', :action =&gt; 'bar')

def check_routing_for(options)
    route_name = options.delete(:route_name)
    route_path = options.delete(:route_path)
    controller, action = options.delete(:controller), options.delete(:action)
    
    class_eval do
      describe &quot;map.#{route_name}&quot; do
        before do
          @route_hash = { :controller =&gt; controller, :action =&gt; action }.merge(options)
        end
        it &quot;Routes to #{route_path}&quot; do
          route_for(@route_hash).should == interpreted_route_path(route_path, options)
        end
        it &quot;Recognizes #{@route_hash.inspect}&quot; do
          params_from(:get, interpreted_route_path(route_path, options)).should == @route_hash
        end
      end
    end
  end</pre>
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Pastable version of route spec'ing