expand_collapse_diffs_spec.rb 8.07 KB
Newer Older
1 2 3 4 5
require 'spec_helper'

feature 'Expand and collapse diffs', js: true, feature: true do
  include WaitForAjax

6 7
  let(:branch) { 'expand-collapse-diffs' }

8 9
  before do
    login_as :admin
Sean McGivern's avatar
Sean McGivern committed
10
    project = create(:project)
11 12

    # Ensure that undiffable.md is in .gitattributes
Sean McGivern's avatar
Sean McGivern committed
13 14
    project.repository.copy_gitattributes(branch)
    visit namespace_project_commit_path(project.namespace, project, project.commit(branch))
15 16 17 18 19 20 21 22 23 24
    execute_script('window.ajaxUris = []; $(document).ajaxSend(function(event, xhr, settings) { ajaxUris.push(settings.url) });')
  end

  def file_container(filename)
    find("[data-blob-diff-path*='#{filename}']")
  end

  # Use define_method instead of let (which is memoized) so that this just works across a
  # reload.
  #
25 26 27 28 29 30
  files = [
    'small_diff.md', 'large_diff.md', 'large_diff_renamed.md', 'undiffable.md',
    'too_large.md', 'too_large_image.jpg'
  ]

  files.each do |file|
31 32 33
    define_method(file.split('.').first) { file_container(file) }
  end

Sean McGivern's avatar
Sean McGivern committed
34
  context 'visiting a commit with collapsed diffs' do
35 36 37 38 39
    it 'shows small diffs immediately' do
      expect(small_diff).to have_selector('.code')
      expect(small_diff).not_to have_selector('.nothing-here-block')
    end

40
    it 'collapses large diffs by default' do
41 42 43 44
      expect(large_diff).not_to have_selector('.code')
      expect(large_diff).to have_selector('.nothing-here-block')
    end

45 46 47 48 49 50 51
    it 'collapses large diffs for renamed files by default' do
      expect(large_diff_renamed).not_to have_selector('.code')
      expect(large_diff_renamed).to have_selector('.nothing-here-block')
      expect(large_diff_renamed).to have_selector('.file-title .deletion')
      expect(large_diff_renamed).to have_selector('.file-title .addition')
    end

52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68
    it 'shows non-renderable diffs as such immediately, regardless of their size' do
      expect(undiffable).not_to have_selector('.code')
      expect(undiffable).to have_selector('.nothing-here-block')
      expect(undiffable).to have_content('gitattributes')
    end

    it 'does not allow diffs that are larger than the maximum size to be expanded' do
      expect(too_large).not_to have_selector('.code')
      expect(too_large).to have_selector('.nothing-here-block')
      expect(too_large).to have_content('too large')
    end

    it 'shows image diffs immediately, regardless of their size' do
      expect(too_large_image).not_to have_selector('.nothing-here-block')
      expect(too_large_image).to have_selector('.image')
    end

69 70 71 72 73 74 75 76 77
    context 'expanding a diff for a renamed file' do
      before do
        large_diff_renamed.find('.nothing-here-block').click
        wait_for_ajax
      end

      it 'shows the old content' do
        old_line = large_diff_renamed.find('.line_content.old')

Sean McGivern's avatar
Sean McGivern committed
78
        expect(old_line).to have_content('two copies')
79 80 81 82 83
      end

      it 'shows the new content' do
        new_line = large_diff_renamed.find('.line_content.new', match: :prefer_exact)

Sean McGivern's avatar
Sean McGivern committed
84
        expect(new_line).to have_content('three copies')
85 86 87
      end
    end

88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109
    context 'expanding a large diff' do
      before do
        click_link('large_diff.md')
        wait_for_ajax
      end

      it 'makes a request to get the content' do
        ajax_uris = evaluate_script('ajaxUris')

        expect(ajax_uris).not_to be_empty
        expect(ajax_uris.first).to include('large_diff.md')
      end

      it 'shows the diff content' do
        expect(large_diff).to have_selector('.code')
        expect(large_diff).not_to have_selector('.nothing-here-block')
      end

      context 'adding a comment to the expanded diff' do
        let(:comment_text) { 'A comment' }

        before do
Sean McGivern's avatar
Sean McGivern committed
110
          large_diff.find('.diff-line-num', match: :prefer_exact).hover
111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164
          large_diff.find('.add-diff-note').click
          large_diff.find('.note-textarea').send_keys comment_text
          large_diff.find_button('Comment').click
          wait_for_ajax
        end

        it 'adds the comment' do
          expect(large_diff.find('.notes')).to have_content comment_text
        end

        context 'reloading the page' do
          before { refresh }

          it 'collapses the large diff by default' do
            expect(large_diff).not_to have_selector('.code')
            expect(large_diff).to have_selector('.nothing-here-block')
          end

          context 'expanding the diff' do
            before do
              click_link('large_diff.md')
              wait_for_ajax
            end

            it 'shows the diff content' do
              expect(large_diff).to have_selector('.code')
              expect(large_diff).not_to have_selector('.nothing-here-block')
            end

            it 'shows the diff comment' do
              expect(large_diff.find('.notes')).to have_content comment_text
            end
          end
        end
      end
    end

    context 'collapsing an expanded diff' do
      before { click_link('small_diff.md') }

      it 'hides the diff content' do
        expect(small_diff).not_to have_selector('.code')
        expect(small_diff).to have_selector('.nothing-here-block')
      end

      context 're-expanding the same diff' do
        before { click_link('small_diff.md') }

        it 'shows the diff content' do
          expect(small_diff).to have_selector('.code')
          expect(small_diff).not_to have_selector('.nothing-here-block')
        end

        it 'does not make a new HTTP request' do
Sean McGivern's avatar
Sean McGivern committed
165
          expect(evaluate_script('ajaxUris')).not_to include(a_string_matching('small_diff.md'))
166 167 168 169
        end
      end
    end
  end
170

171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210
  context 'visiting a commit without collapsed diffs' do
    let(:branch) { 'feature' }

    it 'does not show Expand all button' do
      expect(page).not_to have_link('Expand all')
    end
  end

  context 'visiting a commit with more than safe files' do
    let(:branch) { 'expand-collapse-files' }

    # safe-files -> 100 | safe-lines -> 5000 | commit-files -> 105
    it 'does collapsing from the safe number of files to the end on small files' do
      expect(page).to have_link('Expand all')

      expect(page).to have_selector('.diff-content', count: 105)
      expect(page).to have_selector('.diff-collapsed', count: 5)

      %w(file-95.txt file-96.txt file-97.txt file-98.txt file-99.txt).each do |filename|
        expect(find("[data-blob-diff-path*='#{filename}']")).to have_selector('.diff-collapsed')
      end
    end
  end

  context 'visiting a commit with more than safe lines' do
    let(:branch) { 'expand-collapse-lines' }

    # safe-files -> 100 | safe-lines -> 5000 | commit_files -> 8 (each 1250 lines)
    it 'does collapsing from the safe number of lines to the end' do
      expect(page).to have_link('Expand all')

      expect(page).to have_selector('.diff-content', count: 6)
      expect(page).to have_selector('.diff-collapsed', count: 2)

      %w(file-4.txt file-5.txt).each do |filename|
        expect(find("[data-blob-diff-path*='#{filename}']")).to have_selector('.diff-collapsed')
      end
    end
  end

211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242
  context 'expanding all diffs' do
    before do
      click_link('Expand all')
      wait_for_ajax
      execute_script('window.ajaxUris = []; $(document).ajaxSend(function(event, xhr, settings) { ajaxUris.push(settings.url) });')
    end

    it 'reloads the page with all diffs expanded' do
      expect(small_diff).to have_selector('.code')
      expect(small_diff).not_to have_selector('.nothing-here-block')

      expect(large_diff).to have_selector('.code')
      expect(large_diff).not_to have_selector('.nothing-here-block')
    end

    context 'collapsing an expanded diff' do
      before { click_link('small_diff.md') }

      it 'hides the diff content' do
        expect(small_diff).not_to have_selector('.code')
        expect(small_diff).to have_selector('.nothing-here-block')
      end

      context 're-expanding the same diff' do
        before { click_link('small_diff.md') }

        it 'shows the diff content' do
          expect(small_diff).to have_selector('.code')
          expect(small_diff).not_to have_selector('.nothing-here-block')
        end

        it 'does not make a new HTTP request' do
Sean McGivern's avatar
Sean McGivern committed
243
          expect(evaluate_script('ajaxUris')).not_to include(a_string_matching('small_diff.md'))
244 245 246 247
        end
      end
    end
  end
248
end