tabs_cell_spec.rb

require "spec_helper"

describe TabsCell, "show", :type => :cell_controller do

  before( :each ) do
    @cell = TabsCell.new
    @selected_tab_title = "Tab Article"
    assign_to_cell( :selected_tab_title, @selected_tab_title )

    @tab_articles = mock( :tab_articles_relation )
    TabArticle.stub!( :get_all_for_tabs ).and_return( @tab_articles )
    @cell.stub!( :render )
  end

  def do_action
    @cell.show
  end

  it "should get and assign all tab articles" do
    TabArticle.should_receive( :get_all_for_tabs ).and_return( @tab_articles )
    do_action
    assigned_to_cell( :tab_articles ).should == @tab_articles
  end

  it "should get and assign the selected_tab title" do
    do_action
    assigned_to_cell( :selected_tab_title ).should == @selected_tab_title
  end

  it "should render the cell" do
    @cell.should_receive( :render )
    do_action
  end
  
end

describe TabsCell, "helper methods", :type => :cell_controller do

  before( :each ) do
    @cell = TabsCell.new
  end

  describe "li_for_tab_article( tab_article, selected_tab_title )" do

    before( :each ) do
      @tab_article = Factory.stub( :tab_article,
                                   title: "Home",
                                   tab_title: "Home",
                                   url_title: "home" )
    end

    def do_call
      @li = Nokogiri::HTML( @cell.send( :li_for_tab_article, @tab_article, @selected_tab_title ) ).xpath( "/*" ).first
    end

    it "should render an li item containing a link containing an image" do
      do_call
      @li.xpath( "//li" ).size.should == 1
      @li.xpath( "//li/a/img" ).should_not be_empty
    end

    it "should give the li item the url title as an id" do
      do_call.xpath( "//li[@id = '#{ @tab_article.url_title }']" ).should_not be_empty
    end

    context "when the tab_article has a tab title of 'Home'" do

      it "should set the link to go to the home page" do
        do_call.xpath( "//a[@href = '#{ home_path }']" ).should_not be_empty
      end

      context "when there is no selected tab title" do

        it "should render the li with the 'selected' class" do
          do_call.xpath( "//li[@class = 'selected']" ).should_not be_empty
        end

        it "should use the tab article's selected image" do
          do_call.xpath( "//img[@src = '#{ @tab_article.selected_image.url }']" ).should_not be_empty
        end
        
      end

      context "when the selected tab title matches the tab article's" do

        before( :each ) do
          @selected_tab_title = "Home"
        end

        it "should render the li with the 'selected' class" do
          do_call.xpath( "//li[@class = 'selected']" ).should_not be_empty
        end

        it "should use the tab article's selected image" do
          do_call.xpath( "//img[@src = '#{ @tab_article.selected_image.url }']" ).should_not be_empty
        end
        
      end

      context "when the selected tab title does not match the tab article's" do

        before( :each ) do
          @selected_tab_title = "No Match"
        end

        it "should not render the li with the 'selected' class" do
          do_call.xpath( "//li[@class = 'selected']" ).should be_empty
        end

        it "should use the tab article's image" do
          do_call.xpath( "//img[@src = '#{ @tab_article.image.url }']" ).should_not be_empty
        end
        
      end
      
    end

    context "when the tab_article does not have a tab title of 'Home'" do

      before( :each ) do
        @tab_article = Factory.stub( :tab_article,
                                     title: "About",
                                     tab_title: "About",
                                     url_title: "about" )
      end

      it "should set the link to go to the tab article page for the tab article" do
        do_call.xpath( "//a[@href = '#{ tab_article_path( @tab_article.url_title ) }']" ).should_not be_empty
      end

      context "when there is no selected tab title" do

        it "should not render the li with the 'selected' class" do
          do_call.xpath( "//li[@class = 'selected']" ).should be_empty
        end

        it "should use the tab article's image" do
          do_call.xpath( "//img[@src = '#{ @tab_article.image.url }']" ).should_not be_empty
        end
        
      end

      context "when the selected tab title matches the tab article's" do

        before( :each ) do
          @selected_tab_title = "About"
        end

        it "should render the li with the 'selected' class" do
          do_call.xpath( "//li[@class = 'selected']" ).should_not be_empty
        end

        it "should use the tab article's selected image" do
          do_call.xpath( "//img[@src = '#{ @tab_article.selected_image.url }']" ).should_not be_empty
        end
        
      end

      context "when the selected tab title does not match the tab article's" do

        before( :each ) do
          @selected_tab_title = "No Match"
        end

        it "should not render the li with the 'selected' class" do
          do_call.xpath( "//li[@class = 'selected']" ).should be_empty
        end

        it "should use the tab article's image" do
          do_call.xpath( "//img[@src = '#{ @tab_article.image.url }']" ).should_not be_empty
        end
        
      end
      
    end
    
  end
  
end