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require 'test/unit'
require 'happymapper'

module OPML
  class Outline
    include HappyMapper
    tag 'outline'
    attribute :title, String
    attribute :text, String
    attribute :type, String
    attribute :xmlUrl, String
    attribute :htmlUrl, String
    has_many :outlines, Outline
  end
  class Section
    include HappyMapper
    tag 'section'
    attribute :title, String
    attribute :text, String    
    has_many :outlines, Outline
  end
end

class TestHappyOPML < Test::Unit::TestCase
  def setup
    @xml =<<-EOXML
<?xml version="1.0" encoding="UTF-8"?>
<opml version="1.0">
    <head>
        <title>mikewoodhouse subscriptions in Google Reader</title>
    </head>
    <body>
        <outline title="ruby" text="ruby">
            <outline text="RailsTips - Home" title="RailsTips - Home"
                type="rss"
                xmlUrl="http://feeds.feedburner.com/railstips" htmlUrl="http://railstips.org/"/>
        </outline>
    </body>
</opml>
EOXML
  end

  def test_as_supplied_by_google_reader

    sections = OPML::Outline.parse(@xml)    

    # Outline#parse gets all the sections ("outer" outlines) AND all the "inner" outlines too
    # so we have to delete the inner ones because we want them to be held in the outer ones
    # as stipulated by the has_many
    assert_equal 2, sections.size # size is 2 because it parsed both outlines
    sections.delete_if { |section| section.outlines.size == 0 }
    assert_equal 1, sections.size # should have removed 1

    section = sections.first

    assert_equal 1, section.outlines.size
    assert_equal "ruby", section.title
    assert_equal "ruby", section.text    

    outline = section.outlines.first

    assert_equal "RailsTips - Home", outline.title
    assert_equal "RailsTips - Home", outline.text
    assert_equal "rss", outline.type
    assert_equal "http://feeds.feedburner.com/railstips", outline.xmlUrl
    assert_equal "http://railstips.org/", outline.htmlUrl
  end

  def test_with_section_outlines_renamed
    # this is what happens when we (somewhat kludgily) hack the XML to make the 
    # "outer" outlines into "sections"...
    new_xml = @xml.gsub(/outline title/, 'section title').gsub!(/\/outline/, '/section')
    # now we can use the Section class:
    sections = OPML::Section.parse(new_xml)
    assert_kind_of Array, sections
    assert_equal 1, sections.size
    assert_equal 1, sections.first.outlines.size
    assert_equal "ruby", sections.first.title
    assert_equal "ruby", sections.first.text
  end
end