gitlab-org--gitlab-foss/spec/presenters/blob_presenter_spec.rb

# frozen_string_literal: true

require 'spec_helper'

RSpec.describe BlobPresenter do
  let_it_be(:project) { create(:project, :repository) }

  let(:repository) { project.repository }
  let(:blob) { repository.blob_at('HEAD', 'files/ruby/regex.rb') }

  subject(:presenter) { described_class.new(blob) }

  describe '#web_url' do
    it { expect(presenter.web_url).to eq("http://localhost/#{project.full_path}/-/blob/#{blob.commit_id}/#{blob.path}") }
  end

  describe '#web_path' do
    it { expect(presenter.web_path).to eq("/#{project.full_path}/-/blob/#{blob.commit_id}/#{blob.path}") }
  end

  describe '#edit_blob_path' do
    it { expect(presenter.edit_blob_path).to eq("/#{project.full_path}/-/edit/#{blob.commit_id}/#{blob.path}") }
  end

  describe '#raw_path' do
    it { expect(presenter.raw_path).to eq("/#{project.full_path}/-/raw/#{blob.commit_id}/#{blob.path}") }
  end

  describe '#replace_path' do
    it { expect(presenter.replace_path).to eq("/#{project.full_path}/-/create/#{blob.commit_id}/#{blob.path}") }
  end

  context 'given a Gitlab::Graphql::Representation::TreeEntry' do
    let(:blob) { Gitlab::Graphql::Representation::TreeEntry.new(super(), repository) }

    describe '#web_url' do
      it { expect(presenter.web_url).to eq("http://localhost/#{project.full_path}/-/blob/#{blob.commit_id}/#{blob.path}") }
    end

    describe '#web_path' do
      it { expect(presenter.web_path).to eq("/#{project.full_path}/-/blob/#{blob.commit_id}/#{blob.path}") }
    end
  end

  describe '#highlight' do
    let(:git_blob) { blob.__getobj__ }

    it 'returns highlighted content' do
      expect(Gitlab::Highlight).to receive(:highlight).with('files/ruby/regex.rb', git_blob.data, plain: nil, language: nil)

      presenter.highlight
    end

    it 'returns plain content when :plain is true' do
      expect(Gitlab::Highlight).to receive(:highlight).with('files/ruby/regex.rb', git_blob.data, plain: true, language: nil)

      presenter.highlight(plain: true)
    end

    context '"to" param is present' do
      before do
        allow(git_blob)
          .to receive(:data)
          .and_return("line one\nline two\nline 3")
      end

      it 'returns limited highlighted content' do
        expect(Gitlab::Highlight).to receive(:highlight).with('files/ruby/regex.rb', "line one\n", plain: nil, language: nil)

        presenter.highlight(to: 1)
      end
    end

    context 'gitlab-language contains a match' do
      before do
        allow(blob).to receive(:language_from_gitattributes).and_return('ruby')
      end

      it 'passes language to inner call' do
        expect(Gitlab::Highlight).to receive(:highlight).with('files/ruby/regex.rb', git_blob.data, plain: nil, language: 'ruby')

        presenter.highlight
      end
    end
  end

  describe '#plain_data' do
    let(:blob) { repository.blob_at('HEAD', file) }

    subject { described_class.new(blob).plain_data }

    context 'when blob is binary' do
      let(:file) { 'files/images/logo-black.png' }

      it 'returns nil' do
        expect(subject).to be_nil
      end
    end

    context 'when blob is markup' do
      let(:file) { 'README.md' }

      it 'returns plain content' do
        expect(subject).to include('<span id="LC1" class="line" lang="markdown">')
      end
    end

    context 'when blob has syntax' do
      let(:file) { 'files/ruby/regex.rb' }

      it 'returns highlighted syntax content' do
        expect(subject)
          .to include '<span id="LC1" class="line" lang="ruby"><span class="k">module</span> <span class="nn">Gitlab</span>'
      end
    end

    context 'when blob has plain data' do
      let(:file) { 'LICENSE' }

      it 'returns plain text highlighted content' do
        expect(subject).to include('<span id="LC1" class="line" lang="plaintext">The MIT License (MIT)</span>')
      end
    end
  end
end