spec/lib/gitlab/highlight_spec.rb


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require 'spec_helper'

describe Gitlab::Highlight, lib: true do
  include RepoHelpers

  let(:project) { create(:project, :repository) }
  let(:repository) { project.repository }
  let(:commit) { project.commit(sample_commit.id) }

  describe 'custom highlighting from .gitattributes' do
    let(:branch) { 'gitattributes' }
    let(:blob) { repository.blob_at_branch(branch, path) }

    let(:highlighter) do
      Gitlab::Highlight.new(blob.path, blob.data, repository: repository)
    end

    before do
      project.change_head('gitattributes')
    end

    describe 'basic language selection' do
      let(:path) { 'custom-highlighting/test.gitlab-custom' }
      it 'highlights as ruby' do
        expect(highlighter.lexer.tag).to eq 'ruby'
      end
    end

    describe 'cgi options' do
      let(:path) { 'custom-highlighting/test.gitlab-cgi' }

      it 'highlights as json with erb' do
        expect(highlighter.lexer.tag).to eq 'erb'
        expect(highlighter.lexer.parent.tag).to eq 'json'
      end
    end
  end

  describe '#highlight' do
    describe 'with CRLF' do
      let(:branch) { 'crlf-diff' }
      let(:path) { 'files/whitespace' }
      let(:blob) { repository.blob_at_branch(branch, path) }
      let(:lines) do
        Gitlab::Highlight.highlight(blob.path, blob.data, repository: repository).lines
      end

      it 'strips extra LFs' do
        expect(lines[0]).to eq("<span id=\"LC1\" class=\"line\" lang=\"plaintext\">test  </span>")
      end
    end

    it 'links dependencies via DependencyLinker' do
      expect(Gitlab::DependencyLinker).to receive(:link)
        .with('file.name', 'Contents', anything).and_call_original

      described_class.highlight('file.name', 'Contents')
    end
  end
end