require 'rails_helper' describe 'Merge request > User sees diff', :js do include ProjectForksHelper include RepoHelpers 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' do expect(page).to have_selector(fragment, visible: true) end 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('.alert') do expect(page).to have_text("Too many changes to show. Plain diff Email patch To preserve performance only 3 of 3+ files are displayed.") 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") } before do forked_project.repository.after_import end context 'as author' do it 'shows direct edit link' do sign_in(author_user) visit diffs_project_merge_request_path(project, merge_request) # Throws `Capybara::Poltergeist::InvalidSelector` if we try to use `#hash` syntax expect(page).to have_selector("[id=\"#{changelog_id}\"] a.js-edit-blob") end end context 'as user who needs to fork' do it 'shows fork/cancel confirmation' do sign_in(user) visit diffs_project_merge_request_path(project, merge_request) # Throws `Capybara::Poltergeist::InvalidSelector` if we try to use `#hash` syntax 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.owner } let(:branch_name) {"test_branch"} it 'escapes any HTML special characters in the diff chunk header' do file_content = <<~CONTENT function foo { let a = 1; let b = 2; let c = 3; let d = 3; } CONTENT new_file_content = <<~CONTENT function foo { let a = 1; let b = 2; let c = 3; let x = 3; } CONTENT file_name = 'xss_file.rs' 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) expect(page).to have_text("function foo {") 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.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) { 'files/lfs/image.png' } it 'shows an error message' do expect(page).not_to have_content('could not be displayed because it is stored in LFS') end end context 'when file is not an image' do let(:file_name) { 'files/lfs/ruby.rb' } it 'shows an error message' do expect(page).to have_content('This source diff could not be displayed because it is stored in LFS') end end end context 'when LFS is not enabled' do before do 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