engine/spec/models/layout_spec.rb

require 'spec_helper'

describe Layout do

  it 'should have a valid factory' do
    Factory.build(:layout).should be_valid
  end

  ## validations ##

  it 'should validate presence of content_for_layout in value' do
    layout = Factory.build(:layout, :value => 'without content_for_layout')
    layout.should_not be_valid
    layout.errors[:value].should == ["should contain 'content_for_layout' liquid tag"]
  end

  context 'dealing with page parts' do

    before(:each) do
      @layout = Factory.build(:layout)
    end

    it 'should have 2 parts' do
      @layout.send(:build_parts_from_value)
      @layout.parts.size.should == 2

      @layout.parts.first.name.should == 'Body'
      @layout.parts.first.slug.should == 'layout'

      @layout.parts.last.name.should == 'Left sidebar'
      @layout.parts.last.slug.should == 'left_sidebar'
    end

    it 'should not add parts to pages if layout does not change' do
      @layout.stubs(:value_changed?).returns(false)
      page = Factory.build(:page, :layout => @layout, :site => nil)
      page.expects(:update_parts!).never
      @layout.pages << page
      @layout.save
    end

    it 'should add parts to pages if layout changes' do
      @layout.value = @layout.value + "..."
      page = Factory.build(:page, :layout => @layout, :site => nil)
      page.expects(:update_parts!)
      @layout.pages << page
      @layout.save
    end

  end

  context 'parsing liquid template' do

    before(:each) do
      @layout = Factory.build(:layout)
    end

    it 'should not raise an error if template is empty' do
      @layout.template.should be_nil
    end

  end

end