require 'spec_helper'

module Gitlab::Markdown
  describe EmojiFilter do
    include FilterSpecHelper

    before do
      ActionController::Base.asset_host = 'https://foo.com'
    end

    it 'replaces supported emoji' do
      doc = filter('<p>:heart:</p>')
      expect(doc.css('img').first.attr('src')).to eq 'https://foo.com/assets/emoji/2764.png'
    end

    it 'ignores unsupported emoji' do
      exp = act = '<p>:foo:</p>'
      doc = filter(act)
      expect(doc.to_html).to match Regexp.escape(exp)
    end

    it 'correctly encodes the URL' do
      doc = filter('<p>:+1:</p>')
      expect(doc.css('img').first.attr('src')).to eq 'https://foo.com/assets/emoji/1F44D.png'
    end

    it 'matches at the start of a string' do
      doc = filter(':+1:')
      expect(doc.css('img').size).to eq 1
    end

    it 'matches at the end of a string' do
      doc = filter('This gets a :-1:')
      expect(doc.css('img').size).to eq 1
    end

    it 'matches with adjacent text' do
      doc = filter('+1 (:+1:)')
      expect(doc.css('img').size).to eq 1
    end

    it 'matches multiple emoji in a row' do
      doc = filter(':see_no_evil::hear_no_evil::speak_no_evil:')
      expect(doc.css('img').size).to eq 3
    end

    it 'has a title attribute' do
      doc = filter(':-1:')
      expect(doc.css('img').first.attr('title')).to eq ':-1:'
    end

    it 'has an alt attribute' do
      doc = filter(':-1:')
      expect(doc.css('img').first.attr('alt')).to eq ':-1:'
    end

    it 'has an align attribute' do
      doc = filter(':8ball:')
      expect(doc.css('img').first.attr('align')).to eq 'absmiddle'
    end

    it 'has an emoji class' do
      doc = filter(':cat:')
      expect(doc.css('img').first.attr('class')).to eq 'emoji'
    end

    it 'has height and width attributes' do
      doc = filter(':dog:')
      img = doc.css('img').first

      expect(img.attr('width')).to eq '20'
      expect(img.attr('height')).to eq '20'
    end

    it 'keeps whitespace intact' do
      doc = filter('This deserves a :+1:, big time.')

      expect(doc.to_html).to match(/^This deserves a <img.+>, big time\.\z/)
    end

    it 'uses a custom asset_root context' do
      root = Gitlab.config.gitlab.url + 'gitlab/root'

      doc = filter(':smile:', asset_root: root)
      expect(doc.css('img').first.attr('src')).to start_with(root)
    end

    it 'uses a custom asset_host context' do
      ActionController::Base.asset_host = 'https://cdn.example.com'

      doc = filter(':frowning:', asset_host: 'https://this-is-ignored-i-guess?')
      expect(doc.css('img').first.attr('src')).to start_with('https://cdn.example.com')
    end
  end
end
