Implement tracks/{show,listen}

spec/controllers/tracks_controller_spec.rb

@@ -0,0 +1,17 @@
+require 'spec_helper'
+
+describe TracksController do
+  def valid_attributes
+    {
+      :name => 'Mega song'
+    }
+  end
+
+  describe 'GET show' do
+    it 'assigns the requested track as @track' do
+      track = Track.create! valid_attributes
+      get :show, :id => track.id.to_s
+      assigns[:track].should == track
+    end
+  end
+end