spec/lib/gitlab/markdown/snippet_reference_filter_spec.rb


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require 'spec_helper'

module Gitlab::Markdown
  describe SnippetReferenceFilter do
    include ReferenceFilterSpecHelper

    let(:project)   { create(:empty_project) }
    let(:snippet)   { create(:project_snippet, project: project) }
    let(:reference) { "$#{snippet.id}" }

    it 'requires project context' do
      expect { described_class.call('Snippet $123', {}) }.
        to raise_error(ArgumentError, /:project/)
    end

    %w(pre code a style).each do |elem|
      it "ignores valid references contained inside '#{elem}' element" do
        exp = act = "<#{elem}>Snippet #{reference}</#{elem}>"
        expect(filter(act).to_html).to eq exp
      end
    end

    it 'links to a valid reference' do
      doc = filter("See #{reference}")

      expect(doc.css('a').first.attr('href')).to eq urls.
        namespace_project_snippet_url(project.namespace, project, snippet)
    end

    it 'links with adjacent text' do
      doc = filter("Snippet (#{reference}.)")
      expect(doc.to_html).to match(/\(<a.+>#{Regexp.escape(reference)}<\/a>\.\)/)
    end

    it 'ignores invalid snippet IDs' do
      exp = act = "Snippet $#{snippet.id + 1}"

      expect(filter(act).to_html).to eq exp
    end

    it 'includes a title attribute' do
      doc = filter("Snippet #{reference}")
      expect(doc.css('a').first.attr('title')).to eq "Snippet: #{snippet.title}"
    end

    it 'includes default classes' do
      doc = filter("Snippet #{reference}")
      expect(doc.css('a').first.attr('class')).to eq 'gfm gfm-snippet'
    end

    it 'includes an optional custom class' do
      doc = filter("Snippet #{reference}", reference_class: 'custom')
      expect(doc.css('a').first.attr('class')).to include 'custom'
    end

    it 'supports an :only_path context' do
      doc = filter("Snippet #{reference}", only_path: true)
      link = doc.css('a').first.attr('href')

      expect(link).not_to match %r(https?://)
      expect(link).to eq urls.namespace_project_snippet_url(project.namespace, project, snippet, only_path: true)
    end
  end
end