spec/lib/gitlab/markdown/external_link_filter_spec.rb


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require 'spec_helper'

module Gitlab::Markdown
  describe ExternalLinkFilter do
    def filter(html, options = {})
      described_class.call(html, options)
    end

    it 'ignores elements without an href attribute' do
      exp = act = %q(<a id="ignored">Ignore Me</a>)
      expect(filter(act).to_html).to eq exp
    end

    it 'ignores non-HTTP(S) links' do
      exp = act = %q(<a href="irc://irc.freenode.net/gitlab">IRC</a>)
      expect(filter(act).to_html).to eq exp
    end

    it 'skips internal links' do
      internal = Gitlab.config.gitlab.url
      exp = act = %Q(<a href="#{internal}/sign_in">Login</a>)
      expect(filter(act).to_html).to eq exp
    end

    it 'adds rel="nofollow" to external links' do
      act = %q(<a href="https://google.com/">Google</a>)
      doc = filter(act)

      expect(doc.at_css('a')).to have_attribute('rel')
      expect(doc.at_css('a')['rel']).to eq 'nofollow'
    end
  end
end