Improved Var Caching, Line Setup, Specs

app/assets/javascripts/pipelines/components/graph/action_component.vue

@@ -39,7 +39,8 @@
 
     computed: {
       cssClass() {
-        return `${gl.text.dasherize(this.actionIcon)} js-icon-${gl.text.dasherize(this.actionIcon)}`;
+        const actionIconDash = gl.text.dasherize(this.actionIcon)
+        return `${actionIconDash} js-icon-${actionIconDash}`;
       },
     },
   };
@@ -53,7 +54,6 @@
     class="ci-action-icon-container ci-action-icon-wrapper"
     :class="cssClass"
     data-container="body">
-    <icon
-      :name="actionIcon"/>
+    <icon :name="actionIcon"/>
   </a>
 </template>

app/assets/javascripts/pipelines/components/graph/dropdown_action_component.vue

@@ -48,7 +48,6 @@
     class="ci-action-icon-wrapper js-ci-status-icon"
     data-container="body"
     aria-label="Job's action">
-    <icon
-      :name="actionIcon"/>
+    <icon :name="actionIcon"/>
   </a>
 </template>

spec/javascripts/vue_shared/components/icon_spec.js

 import Vue from 'vue';
 import Icon from '~/vue_shared/components/icon.vue';
-
-const IconComponent = Vue.extend(Icon);
+import mountComponent from '../../helpers/vue_mount_component_helper';
 
 describe('Sprite Icon Component', function () {
   describe('Initialization', function () {
+    let icon;
+
     beforeEach(function () {
-      this.propsData = {
+      const IconComponent = Vue.extend(Icon);
+
+      icon = mountComponent(IconComponent, {
         name: 'test',
         size: 99,
         cssClasses: 'extraclasses',
-      };
+      });
+    });
 
-      this.icon = new IconComponent({
-        propsData: this.propsData,
-      }).$mount();
+    afterEach(() => {
+      icon.$destroy();
     });
 
     it('should return a defined Vue component', function () {
-      expect(this.icon).toBeDefined();
+      expect(icon).toBeDefined();
     });
 
     it('should have <svg> as a child element', function () {
-      expect(this.icon.$el.tagName).toBe('svg');
+      expect(icon.$el.tagName).toBe('svg');
     });
 
     it('should have <use> as a child element with the correct href', function () {
-      expect(this.icon.$el.firstChild.tagName).toBe('use');
-      expect(this.icon.$el.firstChild.getAttribute('xlink:href')).toBe(`${gon.sprite_icons}#test`);
+      expect(icon.$el.firstChild.tagName).toBe('use');
+      expect(icon.$el.firstChild.getAttribute('xlink:href')).toBe(`${gon.sprite_icons}#test`);
     });
 
     it('should properly compute iconSizeClass', function () {
-      expect(this.icon.iconSizeClass).toBe('s99');
+      expect(icon.iconSizeClass).toBe('s99');
     });
 
     it('should properly render img css', function () {
-      const classList = this.icon.$el.classList;
+      const classList = icon.$el.classList;
       const containsSizeClass = classList.contains('s99');
       const containsCustomClass = classList.contains('extraclasses');
       expect(containsSizeClass).toBe(true);