Migrate pipelines actions spec

Migrate pipelines actions spec
from karma to jest. And use vue
test utils now.

spec/javascripts/pipelines/pipelines_actions_spec.js → spec/frontend/pipelines/pipelines_actions_spec.js

-import Vue from 'vue';
+import { shallowMount } from '@vue/test-utils';
 import MockAdapter from 'axios-mock-adapter';
-import mountComponent from 'spec/helpers/vue_mount_component_helper';
 import { TEST_HOST } from 'spec/test_constants';
 import axios from '~/lib/utils/axios_utils';
 import PipelinesActions from '~/pipelines/components/pipelines_actions.vue';
+import { GlDeprecatedButton } from '@gitlab/ui';
+import GlCountdown from '~/vue_shared/components/gl_countdown.vue';
+import waitForPromises from 'helpers/wait_for_promises';
 
 describe('Pipelines Actions dropdown', () => {
-  const Component = Vue.extend(PipelinesActions);
-  let vm;
+  let wrapper;
   let mock;
 
-  afterEach(() => {
-    vm.$destroy();
-    mock.restore();
+  const createComponent = (actions = []) => {
+    wrapper = shallowMount(PipelinesActions, {
+      propsData: {
+        actions,
+      },
     });
+  };
+
+  const findAllDropdownItems = () => wrapper.findAll(GlDeprecatedButton);
+  const findAllCountdowns = () => wrapper.findAll(GlCountdown);
 
   beforeEach(() => {
     mock = new MockAdapter(axios);
   });
 
+  afterEach(() => {
+    wrapper.destroy();
+    wrapper = null;
+
+    mock.restore();
+  });
+
   describe('manual actions', () => {
-    const actions = [
+    const mockActions = [
       {
         name: 'stop_review',
         path: `${TEST_HOST}/root/review-app/builds/1893/play`,
@@ -33,33 +47,31 @@ describe('Pipelines Actions dropdown', () => {
     ];
 
     beforeEach(() => {
-      vm = mountComponent(Component, { actions });
+      createComponent(mockActions);
     });
 
     it('renders a dropdown with the provided actions', () => {
-      const dropdownItems = vm.$el.querySelectorAll('.dropdown-menu li');
-
-      expect(dropdownItems.length).toEqual(actions.length);
+      expect(findAllDropdownItems()).toHaveLength(mockActions.length);
     });
 
     it("renders a disabled action when it's not playable", () => {
-      const dropdownItem = vm.$el.querySelector('.dropdown-menu li:last-child button');
-
-      expect(dropdownItem).toBeDisabled();
+      expect(
+        findAllDropdownItems()
+          .at(1)
+          .attributes('disabled'),
+      ).toBe('true');
     });
 
     describe('on click', () => {
-      it('makes a request and toggles the loading state', done => {
-        mock.onPost(actions.path).reply(200);
-
-        vm.$el.querySelector('.dropdown-menu li button').click();
+      it('makes a request and toggles the loading state', () => {
+        mock.onPost(mockActions.path).reply(200);
 
-        expect(vm.isLoading).toEqual(true);
+        wrapper.find(GlDeprecatedButton).vm.$emit('click');
 
-        setTimeout(() => {
-          expect(vm.isLoading).toEqual(false);
+        expect(wrapper.vm.isLoading).toBe(true);
 
-          done();
+        return waitForPromises().then(() => {
+          expect(wrapper.vm.isLoading).toBe(false);
         });
       });
     });
@@ -78,51 +90,53 @@ describe('Pipelines Actions dropdown', () => {
       playable: true,
       scheduled_at: '2018-10-05T08:23:00Z',
     };
-    const findDropdownItem = action => {
-      const buttons = vm.$el.querySelectorAll('.dropdown-menu li button');
-      return Array.prototype.find.call(buttons, element =>
-        element.innerText.trim().startsWith(action.name),
-      );
-    };
-
-    beforeEach(done => {
-      spyOn(Date, 'now').and.callFake(() => new Date('2063-04-04T00:42:00Z').getTime());
-      vm = mountComponent(Component, { actions: [scheduledJobAction, expiredJobAction] });
 
-      Vue.nextTick()
-        .then(done)
-        .catch(done.fail);
+    beforeEach(() => {
+      jest.spyOn(Date, 'now').mockImplementation(() => new Date('2063-04-04T00:42:00Z').getTime());
+      createComponent([scheduledJobAction, expiredJobAction]);
     });
 
-    it('makes post request after confirming', done => {
+    it('makes post request after confirming', () => {
       mock.onPost(scheduledJobAction.path).reply(200);
-      spyOn(window, 'confirm').and.callFake(() => true);
+      jest.spyOn(window, 'confirm').mockReturnValue(true);
 
-      findDropdownItem(scheduledJobAction).click();
+      findAllDropdownItems()
+        .at(0)
+        .vm.$emit('click');
 
       expect(window.confirm).toHaveBeenCalled();
-      setTimeout(() => {
+
+      return waitForPromises().then(() => {
         expect(mock.history.post.length).toBe(1);
-        done();
       });
     });
 
     it('does not make post request if confirmation is cancelled', () => {
       mock.onPost(scheduledJobAction.path).reply(200);
-      spyOn(window, 'confirm').and.callFake(() => false);
+      jest.spyOn(window, 'confirm').mockReturnValue(false);
 
-      findDropdownItem(scheduledJobAction).click();
+      findAllDropdownItems()
+        .at(0)
+        .vm.$emit('click');
 
       expect(window.confirm).toHaveBeenCalled();
       expect(mock.history.post.length).toBe(0);
     });
 
     it('displays the remaining time in the dropdown', () => {
-      expect(findDropdownItem(scheduledJobAction)).toContainText('24:00:00');
+      expect(
+        findAllCountdowns()
+          .at(0)
+          .props('endDateString'),
+      ).toBe(scheduledJobAction.scheduled_at);
     });
 
     it('displays 00:00:00 for expired jobs in the dropdown', () => {
-      expect(findDropdownItem(expiredJobAction)).toContainText('00:00:00');
+      expect(
+        findAllCountdowns()
+          .at(1)
+          .props('endDateString'),
+      ).toBe(expiredJobAction.scheduled_at);
     });
   });
 });