gistfile1.txt

  it "has a unique title" do                                                                                                                                                                 
    @article.title = "A Simple Title"                                                                                                                                                        
    @article.save                                                                                                                                                                            
                                                                                                                                                                                             
    @duplicate = Article.new(:title => "A Simple Title")                                                                                                                                     
    @duplicate.valid?.should be_false                                                                                                                                                        
  end