Fix karma tests in future version of VTU

Fixes failing tests in @vue/test-utils 1.0.0-beta.30

ee/spec/javascripts/approvals/components/mr_edit/mr_rules_hidden_inputs_spec.js

@@ -63,7 +63,7 @@ describe('EE Approvlas MRRulesHiddenInputs', () => {
     it('is empty', () => {
       factory();
 
-      expect(wrapper.html()).toBeUndefined();
+      expect(wrapper.isEmpty()).toBe(true);
     });
   });
 

ee/spec/javascripts/related_items_tree/components/tree_root_spec.js

@@ -50,7 +50,6 @@ const createComponent = ({
     store,
     stubs: {
       'tree-item': true,
-      'gl-button': GlButton,
     },
     propsData: {
       parentItem,
@@ -350,13 +349,13 @@ describe('RelatedItemsTree', () => {
       });
 
       it('renders `Show more` link', () => {
-        expect(wrapper.find('button').text()).toBe('Show more');
+        expect(wrapper.find(GlButton).text()).toBe('Show more');
       });
 
       it('calls `handleShowMoreClick` when `Show more` link is clicked', () => {
         spyOn(wrapper.vm, 'handleShowMoreClick');
 
-        wrapper.find('button').trigger('click');
+        wrapper.find(GlButton).vm.$emit('click');
 
         expect(wrapper.vm.handleShowMoreClick).toHaveBeenCalled();
       });

ee/spec/javascripts/roadmap/components/epics_list_section_spec.js

 import { shallowMount, createLocalVue } from '@vue/test-utils';
-
+import VirtualList from 'vue-virtual-scroll-list';
 import epicsListSectionComponent from 'ee/roadmap/components/epics_list_section.vue';
+import EpicItem from 'ee/roadmap/components/epic_item.vue';
 import createStore from 'ee/roadmap/store';
 import { getTimeframeForMonthsView } from 'ee/roadmap/utils/roadmap_utils';
 import {
@@ -46,8 +47,8 @@ const createComponent = ({
     localVue,
     store,
     stubs: {
-      'epic-item': false,
-      'virtual-list': false,
+      EpicItem: false,
+      VirtualList: false,
     },
     propsData: {
       presetType,
@@ -150,12 +151,15 @@ describe('EpicsListSectionComponent', () => {
     });
 
     describe('getEmptyRowContainerStyles', () => {
-      it('returns empty object when there are no epics available to render', () => {
+      it('returns empty object when there are no epics available to render', done => {
         wrapper.setProps({
           epics: [],
         });
 
-        expect(wrapper.vm.getEmptyRowContainerStyles()).toEqual({});
+        wrapper.vm.$nextTick(() => {
+          expect(wrapper.vm.getEmptyRowContainerStyles()).toEqual({});
+          done();
+        });
       });
 
       it('returns object containing `height` when there epics available to render', () => {
@@ -211,10 +215,13 @@ describe('EpicsListSectionComponent', () => {
       expect(wrapper.vm.$el.classList.contains('epics-list-section')).toBe(true);
     });
 
-    it('renders virtual-list when roadmapBufferedRendering is `true` and `epics.length` is more than `bufferSize`', () => {
+    it('renders virtual-list when roadmapBufferedRendering is `true` and `epics.length` is more than `bufferSize`', done => {
       wrapper.vm.setBufferSize(5);
 
-      expect(wrapper.find('virtuallist-stub').exists()).toBe(true);
+      wrapper.vm.$nextTick(() => {
+        expect(wrapper.find(VirtualList).exists()).toBe(true);
+        done();
+      });
     });
 
     it('renders epic-item when roadmapBufferedRendering is `false`', () => {
@@ -222,7 +229,7 @@ describe('EpicsListSectionComponent', () => {
         roadmapBufferedRendering: false,
       });
 
-      expect(wrapperFlagOff.find('epicitem-stub').exists()).toBe(true);
+      expect(wrapperFlagOff.find(EpicItem).exists()).toBe(true);
 
       wrapperFlagOff.destroy();
     });
@@ -230,7 +237,7 @@ describe('EpicsListSectionComponent', () => {
     it('renders epic-item when roadmapBufferedRendering is `true` and `epics.length` is less than `bufferSize`', () => {
       wrapper.vm.setBufferSize(50);
 
-      expect(wrapper.find('epicitem-stub').exists()).toBe(true);
+      expect(wrapper.find(EpicItem).exists()).toBe(true);
     });
 
     it('renders empty row element when `epics.length` is less than `bufferSize`', () => {

spec/javascripts/diffs/components/app_spec.js

@@ -68,7 +68,7 @@ describe('diffs/components/app', () => {
   });
 
   describe('fetch diff methods', () => {
-    beforeEach(() => {
+    beforeEach(done => {
       const fetchResolver = () => {
         store.state.diffs.retrievingBatches = false;
         return Promise.resolve();
@@ -82,6 +82,7 @@ describe('diffs/components/app', () => {
       spyOn(wrapper.vm, 'startRenderDiffsQueue');
       spyOn(wrapper.vm, 'unwatchDiscussions');
       store.state.diffs.retrievingBatches = true;
+      wrapper.vm.$nextTick(done);
     });
 
     it('calls fetchDiffFiles if diffsBatchLoad is not enabled', done => {
@@ -99,30 +100,32 @@ describe('diffs/components/app', () => {
       });
     });
 
-    it('calls batch methods if diffsBatchLoad is enabled, and not latest version', () => {
+    it('calls batch methods if diffsBatchLoad is enabled, and not latest version', done => {
       wrapper.vm.glFeatures.diffsBatchLoad = true;
       wrapper.vm.isLatestVersion = () => false;
       wrapper.vm.fetchData(false);
 
       expect(wrapper.vm.fetchDiffFiles).not.toHaveBeenCalled();
-      wrapper.vm.$nextTick(() => {
+      setTimeout(() => {
         expect(wrapper.vm.startRenderDiffsQueue).toHaveBeenCalled();
         expect(wrapper.vm.fetchDiffFilesMeta).toHaveBeenCalled();
         expect(wrapper.vm.fetchDiffFilesBatch).toHaveBeenCalled();
         expect(wrapper.vm.unwatchDiscussions).toHaveBeenCalled();
+        done();
       });
     });
 
-    it('calls batch methods if diffsBatchLoad is enabled, and latest version', () => {
+    it('calls batch methods if diffsBatchLoad is enabled, and latest version', done => {
       wrapper.vm.glFeatures.diffsBatchLoad = true;
       wrapper.vm.fetchData(false);
 
       expect(wrapper.vm.fetchDiffFiles).not.toHaveBeenCalled();
-      wrapper.vm.$nextTick(() => {
+      setTimeout(() => {
         expect(wrapper.vm.startRenderDiffsQueue).toHaveBeenCalled();
         expect(wrapper.vm.fetchDiffFilesMeta).toHaveBeenCalled();
         expect(wrapper.vm.fetchDiffFilesBatch).toHaveBeenCalled();
         expect(wrapper.vm.unwatchDiscussions).toHaveBeenCalled();
+        done();
       });
     });
   });