require 'spec_helper' describe DiffHelper do include RepoHelpers let(:project) { create(:project) } let(:repository) { project.repository } let(:commit) { project.commit(sample_commit.id) } let(:diffs) { commit.diffs } let(:diff) { diffs.first } let(:diff_refs) { [commit.parent, commit] } let(:diff_file) { Gitlab::Diff::File.new(diff, diff_refs: diff_refs, repository: repository) } describe 'diff_view' do it 'returns a valid value when cookie is set' do helper.request.cookies[:diff_view] = 'parallel' expect(helper.diff_view).to eq 'parallel' end it 'returns a default value when cookie is invalid' do helper.request.cookies[:diff_view] = 'invalid' expect(helper.diff_view).to eq 'inline' end it 'returns a default value when cookie is nil' do expect(helper.request.cookies).to be_empty expect(helper.diff_view).to eq 'inline' end end describe 'diff_options' do it 'should return hard limit for a diff if force diff is true' do allow(controller).to receive(:params) { { force_show_diff: true } } expect(diff_options).to include(Commit.max_diff_options) end it 'should return hard limit for a diff if expand_all_diffs is true' do allow(controller).to receive(:params) { { expand_all_diffs: true } } expect(diff_options).to include(Commit.max_diff_options) end it 'should return no collapse false' do expect(diff_options).to include(no_collapse: false) end it 'should return no collapse true if expand_all_diffs' do allow(controller).to receive(:params) { { expand_all_diffs: true } } expect(diff_options).to include(no_collapse: true) end it 'should return no collapse true if action name diff_for_path' do allow(controller).to receive(:action_name) { 'diff_for_path' } expect(diff_options).to include(no_collapse: true) end end describe 'unfold_bottom_class' do it 'should return empty string when bottom line shouldnt be unfolded' do expect(unfold_bottom_class(false)).to eq('') end it 'should return js class when bottom lines should be unfolded' do expect(unfold_bottom_class(true)).to include('js-unfold-bottom') end end describe 'unfold_class' do it 'returns empty on false' do expect(unfold_class(false)).to eq('') end it 'returns a class on true' do expect(unfold_class(true)).to eq('unfold js-unfold') end end describe '#diff_line_content' do it 'should return non breaking space when line is empty' do expect(diff_line_content(nil)).to eq('  ') end it 'should return the line itself' do expect(diff_line_content(diff_file.diff_lines.first.text)). to eq('@@ -6,12 +6,18 @@ module Popen') expect(diff_line_content(diff_file.diff_lines.first.type)).to eq('match') expect(diff_file.diff_lines.first.new_pos).to eq(6) end end describe "#mark_inline_diffs" do let(:old_line) { %{abc 'def'} } let(:new_line) { %{abc "def"} } it "returns strings with marked inline diffs" do marked_old_line, marked_new_line = mark_inline_diffs(old_line, new_line) expect(marked_old_line).to eq("abc 'def'") expect(marked_old_line).to be_html_safe expect(marked_new_line).to eq("abc "def"") expect(marked_new_line).to be_html_safe end end end