Fixes after review

Fix pipelines tests

Fix rubocop

app/assets/javascripts/extensions/element.js.es6

 /* global Element */
-/* eslint-disable consistent-return, max-len */
+/* eslint-disable consistent-return, max-len, no-empty, no-plusplus, func-names */
 
 Element.prototype.closest = Element.prototype.closest || function closest(selector, selectedElement = this) {
   if (!selectedElement) return;
   return selectedElement.matches(selector) ? selectedElement : Element.prototype.closest(selector, selectedElement.parentElement);
 };
 
-/* eslint-disable */
-/**
- * .matches polyfill from mdn
- * https://developer.mozilla.org/en-US/docs/Web/API/Element/matches
- *
- * .matches is used in our code.
- * In order to run the tests in Phantomjs we need this polyfill
- */
 if (!Element.prototype.matches) {
   Element.prototype.matches =
       Element.prototype.matchesSelector ||
@@ -22,8 +14,8 @@ if (!Element.prototype.matches) {
       Element.prototype.oMatchesSelector ||
       Element.prototype.webkitMatchesSelector ||
       function (s) {
-        var matches = (this.document || this.ownerDocument).querySelectorAll(s),
-          i = matches.length;
+        const matches = (this.document || this.ownerDocument).querySelectorAll(s);
+        let i = matches.length;
         while (--i >= 0 && matches.item(i) !== this) {}
         return i > -1;
       };

spec/features/projects/pipelines/pipeline_spec.rb

@@ -25,16 +25,13 @@ describe "Pipelines", feature: true, js: true do
 
     before { visit namespace_project_pipeline_path(project.namespace, project, pipeline) }
 
-    it 'shows a list of builds' do
+    it 'shows the pipeline graph' do
+      expect(page).to have_selector('.pipeline-visualization')
+      expect(page).to have_content('Build')
       expect(page).to have_content('Test')
-      expect(page).to have_content(@success.id)
       expect(page).to have_content('Deploy')
-      expect(page).to have_content(@failed.id)
-      expect(page).to have_content(@running.id)
-      expect(page).to have_content(@external.id)
       expect(page).to have_content('Retry failed')
       expect(page).to have_content('Cancel running')
-      expect(page).to have_link('Play')
     end
 
     it 'shows Pipeline tab pane as active' do
@@ -63,7 +60,6 @@ describe "Pipelines", feature: true, js: true do
         before { click_on 'Retry failed' }
 
         it { expect(page).not_to have_content('Retry failed') }
-        it { expect(page).to have_selector('.retried') }
       end
     end
 
@@ -74,19 +70,8 @@ describe "Pipelines", feature: true, js: true do
         before { click_on 'Cancel running' }
 
         it { expect(page).not_to have_content('Cancel running') }
-        it { expect(page).to have_selector('.ci-canceled') }
       end
     end
-
-    context 'playing manual build' do
-      before do
-        within '.pipeline-holder' do
-          click_link('Play')
-        end
-      end
-
-      it { expect(@manual.reload).to be_pending }
-    end
   end
 
   describe 'GET /:project/pipelines/:id/builds' do
@@ -166,5 +151,4 @@ describe "Pipelines", feature: true, js: true do
       it { expect(@manual.reload).to be_pending }
     end
   end
-
 end