Fix award emoji tooltip being escaped twice if multiple people voted

app/assets/javascripts/notes/components/note_awards_list.vue

@@ -116,16 +116,20 @@ export default {
 
       // We have 10+ awarded user, join them with comma and add `and x more`.
       if (remainingAwardList.length) {
-        title = sprintf(__(`%{listToShow}, and %{awardsListLength} more.`), {
+        title = sprintf(
+          __(`%{listToShow}, and %{awardsListLength} more.`),
+          {
             listToShow: namesToShow.join(', '),
             awardsListLength: remainingAwardList.length,
-        });
+          },
+          false,
+        );
       } else if (namesToShow.length > 1) {
         // Join all names with comma but not the last one, it will be added with and text.
         title = namesToShow.slice(0, namesToShow.length - 1).join(', ');
         // If we have more than 2 users we need an extra comma before and text.
         title += namesToShow.length > 2 ? ',' : '';
-        title += sprintf(__(` and %{sliced}`), { sliced: namesToShow.slice(-1) }); // Append and text
+        title += sprintf(__(` and %{sliced}`), { sliced: namesToShow.slice(-1) }, false); // Append and text
       } else {
         // We have only 2 users so join them with and.
         title = namesToShow.join(__(' and '));

changelogs/unreleased/30036-award-emoji-tooltip-is-escaped-twice.yml

+---
+title: Fix award emoji tooltip being escaped twice if multiple people voted
+merge_request: 19273
+author: Brian T
+type: fixed

spec/javascripts/notes/components/note_awards_list_spec.js

@@ -61,6 +61,66 @@ describe('note_awards_list component', () => {
     expect(vm.$el.querySelector('.js-add-award')).toBeDefined();
   });
 
+  describe('when the user name contains special HTML characters', () => {
+    const createAwardEmoji = (_, index) => ({
+      name: 'art',
+      user: { id: index, name: `&<>"\`'-${index}`, username: `user-${index}` },
+    });
+
+    const mountComponent = () => {
+      const Component = Vue.extend(awardsNote);
+      vm = new Component({
+        store,
+        propsData: {
+          awards: awardsMock,
+          noteAuthorId: 0,
+          noteId: '545',
+          canAwardEmoji: true,
+          toggleAwardPath: '/gitlab-org/gitlab-foss/notes/545/toggle_award_emoji',
+        },
+      }).$mount();
+    };
+
+    const findTooltip = () =>
+      vm.$el.querySelector('[data-original-title]').getAttribute('data-original-title');
+
+    it('should only escape & and " characters', () => {
+      awardsMock = [...new Array(1)].map(createAwardEmoji);
+      mountComponent();
+      const escapedName = awardsMock[0].user.name.replace(/&/g, '&amp;').replace(/"/g, '&quot;');
+
+      expect(vm.$el.querySelector('[data-original-title]').outerHTML).toContain(escapedName);
+    });
+
+    it('should not escape special HTML characters twice when only 1 person awarded', () => {
+      awardsMock = [...new Array(1)].map(createAwardEmoji);
+      mountComponent();
+
+      awardsMock.forEach(award => {
+        expect(findTooltip()).toContain(award.user.name);
+      });
+    });
+
+    it('should not escape special HTML characters twice when 2 people awarded', () => {
+      awardsMock = [...new Array(2)].map(createAwardEmoji);
+      mountComponent();
+
+      awardsMock.forEach(award => {
+        expect(findTooltip()).toContain(award.user.name);
+      });
+    });
+
+    it('should not escape special HTML characters twice when more than 10 people awarded', () => {
+      awardsMock = [...new Array(11)].map(createAwardEmoji);
+      mountComponent();
+
+      // Testing only the first 10 awards since 11 onward will not be displayed.
+      awardsMock.slice(0, 10).forEach(award => {
+        expect(findTooltip()).toContain(award.user.name);
+      });
+    });
+  });
+
   describe('when the user cannot award emoji', () => {
     beforeEach(() => {
       const Component = Vue.extend(awardsNote);