Testing paperclip with rspec

This post cover the basic testing of paper clip gem in the controller. Since I am new to rspec so I may not be able to cover it in detail with many test cases now but for beginners, I hope its useful.

Suppose you are testing the new function of your controller then the steps will be like this:

1.  Add a describe in your decorations_controller_rspec.rb.
   Note: Decoration here is the name of my controller, which creates a decoration with a name, year of that decoration and expense.Expense here is an excel sheet which is getting uploaded through paperclip gem.
   
   describe "#new" do
       it "must take 4 parameter and returns a decoration object" do
        get "new"
           @decorations=Decoration.new(:name=>'decoration',:year=>'2012',:zone_id=>'1',:expense=> File.new(Rails.root + 'spec/fixtures/test.xls'))
          @decorations.should be_an_instance_of Decoration
       end
   end
2. Create a folder fixtures inside spec directory of your application and add any xls file suppose test.xls. 
3. Its done. You rspec will pass the test case.