# coding: UTF-8
rootdir = File.dirname(File.dirname(__FILE__))
$LOAD_PATH.unshift "#{rootdir}/lib"

if defined? Encoding
  Encoding.default_internal = 'UTF-8'
end

require 'test/unit'
require 'github/markdown'
require 'nokogiri'

def html_equal(html_a, html_b)
  assert_equal Nokogiri::HTML::DocumentFragment.parse(html_a).to_html,
    Nokogiri::HTML::DocumentFragment.parse(html_b).to_html
end

class GFMBasicTest < Test::Unit::TestCase
  def test_that_render_works
    GitHub::Markdown.to_html("Hello **world**!", :gfm)
  end

  def test_that_code_blocks_work
    GitHub::Markdown.to_html("~~~~~~~~~~\nhello world!\n~~~~~~~~~\n", :gfm)
  end

  # With GITHUB_MD_NESTING set to 32, we can handle up to 10 levels of list
  # nesting.  We do not go to 11.
  def test_nested_list
    items = [
      'Item 1',
      'Item 1a',
      'Item 1a1',
      'Item 1a1a',
      'Item 1a1a1',
      'Item 1a1a1a',
      'Item 1a1a1a1',
      'Item 1a1a1a1a',
      'Item 1a1a1a1a1',
      'Item 1a1a1a1a1a'
    ]

    pre = -3
    markdown = items.inject('') do |md, item|
      pre += 3
      md.concat(' '*pre + '+ ' + item + "\n")
    end

    html = GitHub::Markdown.render(markdown)
    parsed = Nokogiri::HTML::DocumentFragment.parse(html)

    items.inject(parsed) do |node, expected_item|
      child = node.at('.//ul/li')
      child_item = child.children.detect{|e| e.text?}.text.strip
      assert_equal expected_item, child_item
      node = child
    end
  end
end