Clean up frequent items components

Moved frequent items list item specs to jest
Replaced js- attributes with refs

app/assets/javascripts/frequent_items/components/frequent_items_list_item.vue

 <script>
 /* eslint-disable vue/require-default-prop */
-import { isEmpty, isString } from 'lodash';
 import Identicon from '~/vue_shared/components/identicon.vue';
 import highlight from '~/lib/utils/highlight';
 import { truncateNamespace } from '~/lib/utils/text_utility';
@@ -38,9 +37,6 @@ export default {
     },
   },
   computed: {
-    hasAvatar() {
-      return isString(this.avatarUrl) && !isEmpty(this.avatarUrl);
-    },
     truncatedNamespace() {
       return truncateNamespace(this.namespace);
     },
@@ -54,8 +50,11 @@ export default {
 <template>
   <li class="frequent-items-list-item-container">
     <a :href="webUrl" class="clearfix">
-      <div class="frequent-items-item-avatar-container avatar-container rect-avatar s32">
-        <img v-if="hasAvatar" :src="avatarUrl" class="avatar s32" />
+      <div
+        ref="frequentItemsItemAvatarContainer"
+        class="frequent-items-item-avatar-container avatar-container rect-avatar s32"
+      >
+        <img v-if="avatarUrl" ref="frequentItemsItemAvatar" :src="avatarUrl" class="avatar s32" />
         <identicon
           v-else
           :entity-id="itemId"
@@ -64,16 +63,18 @@ export default {
           class="rect-avatar"
         />
       </div>
-      <div class="frequent-items-item-metadata-container">
+      <div ref="frequentItemsItemMetadataContainer" class="frequent-items-item-metadata-container">
         <div
+          ref="frequentItemsItemTitle"
           :title="itemName"
-          class="frequent-items-item-title js-frequent-items-item-title"
+          class="frequent-items-item-title"
           v-html="highlightedItemName"
         ></div>
         <div
           v-if="namespace"
+          ref="frequentItemsItemNamespace"
           :title="namespace"
-          class="frequent-items-item-namespace js-frequent-items-item-namespace"
+          class="frequent-items-item-namespace"
         >
           {{ truncatedNamespace }}
         </div>

spec/javascripts/frequent_items/components/frequent_items_list_item_spec.js → spec/frontend/frequent_items/components/frequent_items_list_item_spec.js

-import { shallowMount, createLocalVue } from '@vue/test-utils';
-import { trimText } from 'spec/helpers/text_helper';
+import { shallowMount } from '@vue/test-utils';
+import { trimText } from 'helpers/text_helper';
 import frequentItemsListItemComponent from '~/frequent_items/components/frequent_items_list_item.vue';
-import { mockProject } from '../mock_data'; // can also use 'mockGroup', but not useful to test here
+import mockData from '../mock_data'; // can also use 'mockGroup', but not useful to test here
 
-const localVue = createLocalVue();
+const mockProject = mockData();
 
 describe('FrequentItemsListItemComponent', () => {
   let wrapper;
 
+  const findTitle = () => wrapper.find({ ref: 'frequentItemsItemTitle' });
+  const findAvatar = () => wrapper.find({ ref: 'frequentItemsItemAvatar' });
+  const findAllTitles = () => wrapper.findAll({ ref: 'frequentItemsItemTitle' });
+  const findNamespace = () => wrapper.find({ ref: 'frequentItemsItemNamespace' });
+  const findAllAnchors = () => wrapper.findAll('a');
+  const findAllNamespace = () => wrapper.findAll({ ref: 'frequentItemsItemNamespace' });
+  const findAvatarContainer = () => wrapper.findAll({ ref: 'frequentItemsItemAvatarContainer' });
+  const findAllMetadataContainers = () =>
+    wrapper.findAll({ ref: 'frequentItemsItemMetadataContainer' });
+
   const createComponent = (props = {}) => {
-    wrapper = shallowMount(localVue.extend(frequentItemsListItemComponent), {
+    wrapper = shallowMount(frequentItemsListItemComponent, {
       propsData: {
         itemId: mockProject.id,
         itemName: mockProject.name,
@@ -18,7 +28,6 @@ describe('FrequentItemsListItemComponent', () => {
         avatarUrl: mockProject.avatarUrl,
         ...props,
       },
-      localVue,
     });
   };
 
@@ -28,35 +37,17 @@ describe('FrequentItemsListItemComponent', () => {
   });
 
   describe('computed', () => {
-    describe('hasAvatar', () => {
-      it('should return `true` or `false` if whether avatar is present or not', () => {
-        createComponent({ avatarUrl: 'path/to/avatar.png' });
-
-        expect(wrapper.vm.hasAvatar).toBe(true);
-      });
-
-      it('should return `false` if avatar is not present', () => {
-        createComponent({ avatarUrl: null });
-
-        expect(wrapper.vm.hasAvatar).toBe(false);
-      });
-    });
-
     describe('highlightedItemName', () => {
       it('should enclose part of project name in <b> & </b> which matches with `matcher` prop', () => {
         createComponent({ matcher: 'lab' });
 
-        expect(wrapper.find('.js-frequent-items-item-title').html()).toContain(
-          '<b>L</b><b>a</b><b>b</b>',
-        );
+        expect(findTitle().element.innerHTML).toContain('<b>L</b><b>a</b><b>b</b>');
       });
 
       it('should return project name as it is if `matcher` is not available', () => {
         createComponent({ matcher: null });
 
-        expect(trimText(wrapper.find('.js-frequent-items-item-title').text())).toBe(
-          mockProject.name,
-        );
+        expect(trimText(findTitle().text())).toBe(mockProject.name);
       });
     });
 
@@ -64,7 +55,7 @@ describe('FrequentItemsListItemComponent', () => {
       it('should truncate project name from namespace string', () => {
         createComponent({ namespace: 'platform / nokia-3310' });
 
-        expect(trimText(wrapper.find('.js-frequent-items-item-namespace').text())).toBe('platform');
+        expect(trimText(findNamespace().text())).toBe('platform');
       });
 
       it('should truncate namespace string from the middle if it includes more than two groups in path', () => {
@@ -72,23 +63,41 @@ describe('FrequentItemsListItemComponent', () => {
           namespace: 'platform / hardware / broadcom / Wifi Group / Mobile Chipset / nokia-3310',
         });
 
-        expect(trimText(wrapper.find('.js-frequent-items-item-namespace').text())).toBe(
-          'platform / ... / Mobile Chipset',
-        );
+        expect(trimText(findNamespace().text())).toBe('platform / ... / Mobile Chipset');
       });
     });
   });
 
   describe('template', () => {
-    it('should render component element', () => {
+    beforeEach(() => {
       createComponent();
+    });
+
+    it('should render avatar if avatarUrl is present', () => {
+      wrapper.setProps({ avatarUrl: 'path/to/avatar.png' });
+
+      return wrapper.vm.$nextTick(() => {
+        expect(findAvatar().exists()).toBe(true);
+      });
+    });
+
+    it('should not render avatar if avatarUrl is not present', () => {
+      expect(findAvatar().exists()).toBe(false);
+    });
+
+    it('renders root element with the right classes', () => {
+      expect(wrapper.classes('frequent-items-list-item-container')).toBe(true);
+    });
 
-      expect(wrapper.classes()).toContain('frequent-items-list-item-container');
-      expect(wrapper.findAll('a').length).toBe(1);
-      expect(wrapper.findAll('.frequent-items-item-avatar-container').length).toBe(1);
-      expect(wrapper.findAll('.frequent-items-item-metadata-container').length).toBe(1);
-      expect(wrapper.findAll('.frequent-items-item-title').length).toBe(1);
-      expect(wrapper.findAll('.frequent-items-item-namespace').length).toBe(1);
+    it.each`
+      name                    | selector                     | expected
+      ${'anchor'}             | ${findAllAnchors}            | ${1}
+      ${'avatar container'}   | ${findAvatarContainer}       | ${1}
+      ${'metadata container'} | ${findAllMetadataContainers} | ${1}
+      ${'title'}              | ${findAllTitles}             | ${1}
+      ${'namespace'}          | ${findAllNamespace}          | ${1}
+    `('should render $expected $name', ({ selector, expected }) => {
+      expect(selector()).toHaveLength(expected);
     });
   });
 });

spec/frontend/frequent_items/mock_data.js

+import { TEST_HOST } from 'helpers/test_constants';
+
+export default () => ({
+  id: 1,
+  name: 'GitLab Community Edition',
+  namespace: 'gitlab-org / gitlab-ce',
+  webUrl: `${TEST_HOST}/gitlab-org/gitlab-foss`,
+  avatarUrl: null,
+});