blog_posts_controller_spec.rb

    describe 'with valid attributes' do
      describe 'when publishing' do
        before :each do
          post 'create', :blog_post => @valid_attributes, :commit => { :publish => 'publish' }
        end

        it 'should create a new blog post' do
          BlogPost.count.should == 1
        end

        it 'should publish it' do
          BlogPost.first.published.should be_true
        end

        it 'should redirect to blog post page' do
          response.should redirect_to( blog_post_path( BlogPost.first ) )
        end
      end
    end

    describe 'with invalid attributes' do
      before :each do
        post 'create', :blog_post => @valid_attributes.merge( :content => nil ), :commit => { :publish => 'publish' }
      end

      it 'should not create new blog post' do
        BlogPost.count.should == 0
      end

      it 'should render new template' do
        response.should render_template( :new )
      end
    end