From http://blog.arvidandersson.se/2012/03/28/minimalicous-testing-in-ruby-1-9: "Partial stubbing is when you want use a “real object” in your tests but want to stub some of the methods of that object, for example to avoid hitting the network or to freeze the time. These kinds of stubs are easily added in ruby thanks to it's dynamic workings. Le…

partial_stubbing.rb

describe Book do
 
  it "glorifies published at" do
    book = Book.new
    def book.published_at
      Time.new(2012, 1, 2)
    end
 
    book.glorified_published_at.must_equal "The most awesome and first Monday of the glorious year of 2012"
  end
 
end