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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe 'Merge request > User sees diff', :js, feature_category: :code_review_workflow do
include ProjectForksHelper
include RepoHelpers
include MergeRequestDiffHelpers
let(:project) { create(:project, :public, :repository) }
let(:merge_request) { create(:merge_request, source_project: project) }
context 'when linking to note' do
describe 'with unresolved note' do
let(:note) { create :diff_note_on_merge_request, project: project, noteable: merge_request }
let(:fragment) { "#note_#{note.id}" }
before do
visit "#{diffs_project_merge_request_path(project, merge_request)}#{fragment}"
end
it 'shows expanded note' do
expect(page).to have_selector(fragment, visible: true)
end
end
describe 'with resolved note' do
let(:note) { create :diff_note_on_merge_request, :resolved, project: project, noteable: merge_request }
let(:fragment) { "#note_#{note.id}" }
before do
visit "#{diffs_project_merge_request_path(project, merge_request)}#{fragment}"
end
it 'shows expanded note', quarantine: 'https://gitlab.com/gitlab-org/gitlab/-/issues/391239' do
expect(page).to have_selector(fragment, visible: true)
end
end
end
context 'when linking to a line' do
let(:note) { create :diff_note_on_merge_request, project: project, noteable: merge_request }
let(:line) { note.diff_file.highlighted_diff_lines.last }
let(:line_code) { line.line_code }
before do
visit "#{diffs_project_merge_request_path(project, merge_request)}##{line_code}"
end
it 'shows the linked line', quarantine: 'https://gitlab.com/gitlab-org/gitlab/-/issues/496702' do
expect(page).to have_selector("[id='#{line_code}']", visible: true, obscured: false)
end
end
context 'when merge request has overflow' do
it 'displays warning' do
allow(Commit).to receive(:max_diff_options).and_return(max_files: 3)
allow_any_instance_of(DiffHelper).to receive(:render_overflow_warning?).and_return(true)
visit diffs_project_merge_request_path(project, merge_request)
page.within('.gl-alert') do
expect(page).to have_text("Some changes are not shown. For a faster browsing experience, only 3 of 3+ files are shown. Download one of the files below to see all changes. Plain diff Patches")
end
end
end
context 'when editing file' do
let(:author_user) { create(:user) }
let(:user) { create(:user) }
let(:forked_project) { fork_project(project, author_user, repository: true) }
let(:merge_request) { create(:merge_request_with_diffs, source_project: forked_project, target_project: project, author: author_user) }
let(:changelog_id) { Digest::SHA1.hexdigest("CHANGELOG") }
context 'as author' do
it 'contains direct edit link', :sidekiq_might_not_need_inline do
sign_in(author_user)
visit diffs_project_merge_request_path(project, merge_request)
first(".js-diff-more-actions").click
expect(page).to have_selector(".js-edit-blob")
end
end
context 'as user who needs to fork' do
it 'shows fork/cancel confirmation', :sidekiq_might_not_need_inline, quarantine: 'https://gitlab.com/gitlab-org/gitlab/-/issues/337477' do
sign_in(user)
visit diffs_project_merge_request_path(project, merge_request)
find_by_scrolling("[id=\"#{changelog_id}\"]")
# Throws `Capybara::Poltergeist::InvalidSelector` if we try to use `#hash` syntax
find("[id=\"#{changelog_id}\"] .js-diff-more-actions").click
find("[id=\"#{changelog_id}\"] .js-edit-blob").click
expect(page).to have_selector('.js-fork-suggestion-button', count: 1)
expect(page).to have_selector('.js-cancel-fork-suggestion-button', count: 1)
end
end
context 'when file contains html' do
let(:current_user) { project.first_owner }
let(:branch_name) { "test_branch" }
it 'escapes any HTML special characters in the diff chunk header' do
file_content =
<<~CONTENT
function foo<input> {
let a = 1;
let b = 2;
let c = 3;
let d = 3;
}
CONTENT
new_file_content =
<<~CONTENT
function foo<input> {
let a = 1;
let b = 2;
let c = 3;
let x = 3;
}
CONTENT
file_name = 'xss_file.rs'
file_hash = Digest::SHA1.hexdigest(file_name)
create_file('master', file_name, file_content)
merge_request = create(:merge_request, source_project: project)
create_file(merge_request.source_branch, file_name, new_file_content)
project.commit(merge_request.source_branch)
visit diffs_project_merge_request_path(project, merge_request)
find_by_scrolling("[id='#{file_hash}']")
expect(page).to have_text("function foo<input> {")
expect(page).to have_css(".line[lang='rust'] .k")
end
end
context 'when file is stored in LFS' do
let(:merge_request) { create(:merge_request, source_project: project) }
let(:current_user) { project.first_owner }
context 'when LFS is enabled on the project' do
before do
allow(Gitlab.config.lfs).to receive(:enabled).and_return(true)
project.update_attribute(:lfs_enabled, true)
create_file('master', file_name, project.repository.blob_at('master', 'files/lfs/lfs_object.iso').data)
visit diffs_project_merge_request_path(project, merge_request)
end
context 'when file is an image', :js do
let(:file_name) { 'a/image.png' }
it 'shows an error message' do
expect(page).not_to have_content('could not be displayed: it is stored in LFS')
end
end
context 'when file is not an image' do
let(:file_name) { 'a/ruby.rb' }
it 'shows an error message' do
expect(page).to have_content('source diff could not be displayed: it is stored in LFS')
end
end
end
context 'when LFS is not enabled' do
let(:file_name) { 'a/lfs_object.iso' }
before do
allow(Gitlab.config.lfs).to receive(:disabled).and_return(true)
project.update_attribute(:lfs_enabled, false)
create_file('master', file_name, project.repository.blob_at('master', 'files/lfs/lfs_object.iso').data)
visit diffs_project_merge_request_path(project, merge_request)
end
it 'displays the diff' do
expect(page).to have_content('size 1575078')
end
end
end
def create_file(branch_name, file_name, content)
Files::CreateService.new(
project,
current_user,
start_branch: branch_name,
branch_name: branch_name,
commit_message: "Create file",
file_path: file_name,
file_content: content
).execute
project.commit(branch_name)
end
end
end
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