gitlab-org--gitlab-foss/spec/features/expand_collapse_diffs_spec.rb

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require 'spec_helper'
feature 'Expand and collapse diffs', js: true do
let(:branch) { 'expand-collapse-diffs' }
let(:project) { create(:project, :repository) }
before do
# Set the limits to those when these specs were written, to avoid having to
# update the test repo every time we change them.
allow(Gitlab::Git::Diff).to receive(:size_limit).and_return(100.kilobytes)
allow(Gitlab::Git::Diff).to receive(:collapse_limit).and_return(10.kilobytes)
sign_in(create(:admin))
# Ensure that undiffable.md is in .gitattributes
project.repository.copy_gitattributes(branch)
visit project_commit_path(project, project.commit(branch))
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.
#
files = [
'small_diff.md', 'large_diff.md', 'large_diff_renamed.md', 'undiffable.md',
'too_large.md', 'too_large_image.jpg'
]
files.each do |file|
define_method(file.split('.').first) { file_container(file) }
end
it 'should show the diff content with a highlighted line when linking to line' do
expect(large_diff).not_to have_selector('.code')
expect(large_diff).to have_selector('.nothing-here-block')
visit project_commit_path(project, project.commit(branch), anchor: "#{large_diff[:id]}_0_1")
execute_script('window.location.reload()')
wait_for_requests
expect(large_diff).to have_selector('.code')
expect(large_diff).not_to have_selector('.nothing-here-block')
expect(large_diff).to have_selector('.hll')
end
it 'should show the diff content when linking to file' do
expect(large_diff).not_to have_selector('.code')
expect(large_diff).to have_selector('.nothing-here-block')
visit project_commit_path(project, project.commit(branch), anchor: large_diff[:id])
execute_script('window.location.reload()')
wait_for_requests
expect(large_diff).to have_selector('.code')
expect(large_diff).not_to have_selector('.nothing-here-block')
end
context 'visiting a commit with collapsed diffs' do
it 'shows small diffs immediately' do
expect(small_diff).to have_selector('.code')
expect(small_diff).not_to have_selector('.nothing-here-block')
end
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
context 'expanding a diff for a renamed file' do
before do
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large_diff_renamed.find('.click-to-expand').click
wait_for_requests
end
it 'shows the old content' do
old_line = large_diff_renamed.find('.line_content.old')
expect(old_line).to have_content('two copies')
end
it 'shows the new content' do
new_line = large_diff_renamed.find('.line_content.new', match: :prefer_exact)
expect(new_line).to have_content('three copies')
end
end
context 'expanding a large diff' do
before do
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# Wait for diffs
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find('.js-file-title', match: :first)
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# Click `large_diff.md` title
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all('.diff-toggle-caret')[1].click
wait_for_requests
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
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large_diff.find('.diff-line-num', match: :prefer_exact).hover
large_diff.find('.add-diff-note', match: :prefer_exact).click
large_diff.find('.note-textarea').send_keys comment_text
large_diff.find_button('Comment').click
wait_for_requests
end
it 'adds the comment' do
expect(large_diff.find('.notes')).to have_content comment_text
end
context 'reloading the page' do
before do
refresh
end
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
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# Wait for diffs
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find('.js-file-title', match: :first)
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# Click `large_diff.md` title
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all('.diff-toggle-caret')[1].click
wait_for_requests
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
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before do
# Wait for diffs
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find('.js-file-title', match: :first)
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# Click `small_diff.md` title
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all('.diff-toggle-caret')[3].click
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end
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
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before do
# Wait for diffs
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find('.js-file-title', match: :first)
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# Click `small_diff.md` title
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all('.diff-toggle-caret')[3].click
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end
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
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expect(evaluate_script('ajaxUris')).not_to include(a_string_matching('small_diff.md'))
end
end
end
context 'expanding a diff when symlink was converted to a regular file' do
let(:branch) { 'symlink-expand-diff' }
it 'shows the content of the regular file' do
expect(page).to have_content('This diff is collapsed')
expect(page).to have_no_content('No longer a symlink')
find('.click-to-expand').click
wait_for_requests
expect(page).to have_content('No longer a symlink')
end
end
end
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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
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context 'expanding all diffs' do
before do
click_link('Expand all')
# Wait for elements to appear to ensure full page reload
expect(page).to have_content('This diff was suppressed by a .gitattributes entry')
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expect(page).to have_content('This source diff could not be displayed because it is too large.')
expect(page).to have_content('too_large_image.jpg')
find('.note-textarea')
wait_for_requests
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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
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before do
# Wait for diffs
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find('.js-file-title', match: :first)
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# Click `small_diff.md` title
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all('.diff-toggle-caret')[3].click
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end
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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
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before do
# Wait for diffs
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find('.js-file-title', match: :first)
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# Click `small_diff.md` title
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all('.diff-toggle-caret')[3].click
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end
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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
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expect(evaluate_script('ajaxUris')).not_to include(a_string_matching('small_diff.md'))
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end
end
end
end
end