Replace `mountComponent` helper in `vue_shared/components/sidebar` specs

app/assets/javascripts/vue_shared/components/sidebar/collapsed_calendar_icon.vue

@@ -40,7 +40,7 @@ export default {
 </script>
 
 <template>
-  <div v-gl-tooltip.left.viewport :class="containerClass" :title="tooltipText" @click="click">
+  <div v-gl-tooltip.left.viewport="tooltipText" :class="containerClass" @click="click">
     <gl-icon v-if="showIcon" name="calendar" />
     <slot>
       <span> {{ text }} </span>

app/assets/javascripts/vue_shared/components/sidebar/labels_select_vue/dropdown_value_collapsed.vue

@@ -43,12 +43,7 @@ export default {
 </script>
 
 <template>
-  <div
-    v-gl-tooltip.left.viewport
-    :title="labelsList"
-    class="sidebar-collapsed-icon"
-    @click="handleClick"
-  >
+  <div v-gl-tooltip.left.viewport="labelsList" class="sidebar-collapsed-icon" @click="handleClick">
     <gl-icon name="labels" />
     <span>{{ labels.length }}</span>
   </div>

spec/frontend/vue_shared/components/sidebar/collapsed_calendar_icon_spec.js

-import Vue from 'vue';
-import mountComponent from 'helpers/vue_mount_component_helper';
-import collapsedCalendarIcon from '~/vue_shared/components/sidebar/collapsed_calendar_icon.vue';
+import { shallowMount } from '@vue/test-utils';
+import { GlIcon } from '@gitlab/ui';
+import { createMockDirective, getBinding } from 'helpers/vue_mock_directive';
 
-describe('collapsedCalendarIcon', () => {
-  let vm;
-  beforeEach(() => {
-    const CollapsedCalendarIcon = Vue.extend(collapsedCalendarIcon);
-    vm = mountComponent(CollapsedCalendarIcon, {
-      containerClass: 'test-class',
-      text: 'text',
-      showIcon: false,
+import CollapsedCalendarIcon from '~/vue_shared/components/sidebar/collapsed_calendar_icon.vue';
+
+describe('CollapsedCalendarIcon', () => {
+  let wrapper;
+
+  const defaultProps = {
+    containerClass: 'test-class',
+    text: 'text',
+    tooltipText: 'tooltip text',
+    showIcon: false,
+  };
+
+  const createComponent = ({ props = {} } = {}) => {
+    wrapper = shallowMount(CollapsedCalendarIcon, {
+      propsData: { ...defaultProps, ...props },
+      directives: {
+        GlTooltip: createMockDirective(),
+      },
     });
+  };
+
+  beforeEach(() => {
+    createComponent();
+  });
+
+  afterEach(() => {
+    wrapper.destroy();
   });
 
-  it('should add class to container', () => {
-    expect(vm.$el.classList.contains('test-class')).toEqual(true);
+  const findGlIcon = () => wrapper.findComponent(GlIcon);
+  const getTooltip = () => getBinding(wrapper.element, 'gl-tooltip');
+
+  it('adds class to container', () => {
+    expect(wrapper.classes()).toContain(defaultProps.containerClass);
+  });
+
+  it('does not render calendar icon when showIcon is false', () => {
+    expect(findGlIcon().exists()).toBe(false);
+  });
+
+  it('renders calendar icon when showIcon is true', () => {
+    createComponent({
+      props: { showIcon: true },
+    });
+
+    expect(findGlIcon().exists()).toBe(true);
   });
 
-  it('should hide calendar icon if showIcon', () => {
-    expect(vm.$el.querySelector('[data-testid="calendar-icon"]')).toBeNull();
+  it('renders text', () => {
+    expect(wrapper.text()).toBe(defaultProps.text);
   });
 
-  it('should render text', () => {
-    expect(vm.$el.querySelector('span').innerText.trim()).toEqual('text');
+  it('renders tooltipText as tooltip', () => {
+    expect(getTooltip().value).toBe(defaultProps.tooltipText);
   });
 
-  it('should emit click event when container is clicked', () => {
-    const click = jest.fn();
-    vm.$on('click', click);
+  it('emits click event when container is clicked', async () => {
+    wrapper.trigger('click');
 
-    vm.$el.click();
+    await wrapper.vm.$nextTick();
 
-    expect(click).toHaveBeenCalled();
+    expect(wrapper.emitted('click')[0]).toBeDefined();
   });
 });

spec/frontend/vue_shared/components/sidebar/collapsed_grouped_date_picker_spec.js

-import Vue from 'vue';
-import mountComponent from 'helpers/vue_mount_component_helper';
-import collapsedGroupedDatePicker from '~/vue_shared/components/sidebar/collapsed_grouped_date_picker.vue';
-
-describe('collapsedGroupedDatePicker', () => {
-  let vm;
-  beforeEach(() => {
-    const CollapsedGroupedDatePicker = Vue.extend(collapsedGroupedDatePicker);
-    vm = mountComponent(CollapsedGroupedDatePicker, {
-      showToggleSidebar: true,
+import { shallowMount } from '@vue/test-utils';
+
+import CollapsedGroupedDatePicker from '~/vue_shared/components/sidebar/collapsed_grouped_date_picker.vue';
+import CollapsedCalendarIcon from '~/vue_shared/components/sidebar/collapsed_calendar_icon.vue';
+
+describe('CollapsedGroupedDatePicker', () => {
+  let wrapper;
+
+  const defaultProps = {
+    showToggleSidebar: true,
+  };
+
+  const minDate = new Date('07/17/2016');
+  const maxDate = new Date('07/17/2017');
+
+  const createComponent = ({ props = {} } = {}) => {
+    wrapper = shallowMount(CollapsedGroupedDatePicker, {
+      propsData: { ...defaultProps, ...props },
     });
+  };
+
+  afterEach(() => {
+    wrapper.destroy();
   });
 
-  describe('toggleCollapse events', () => {
-    beforeEach((done) => {
-      jest.spyOn(vm, 'toggleSidebar').mockImplementation(() => {});
-      vm.minDate = new Date('07/17/2016');
-      Vue.nextTick(done);
-    });
+  const findCollapsedCalendarIcon = () => wrapper.findComponent(CollapsedCalendarIcon);
+  const findAllCollapsedCalendarIcons = () => wrapper.findAllComponents(CollapsedCalendarIcon);
 
+  describe('toggleCollapse events', () => {
     it('should emit when collapsed-calendar-icon is clicked', () => {
-      vm.$el.querySelector('.sidebar-collapsed-icon').click();
+      createComponent();
 
-      expect(vm.toggleSidebar).toHaveBeenCalled();
+      findCollapsedCalendarIcon().trigger('click');
+
+      expect(wrapper.emitted('toggleCollapse')[0]).toBeDefined();
     });
   });
 
   describe('minDate and maxDate', () => {
-    beforeEach((done) => {
-      vm.minDate = new Date('07/17/2016');
-      vm.maxDate = new Date('07/17/2017');
-      Vue.nextTick(done);
-    });
-
     it('should render both collapsed-calendar-icon', () => {
-      const icons = vm.$el.querySelectorAll('.sidebar-collapsed-icon');
-
-      expect(icons.length).toEqual(2);
-      expect(icons[0].innerText.trim()).toEqual('Jul 17 2016');
-      expect(icons[1].innerText.trim()).toEqual('Jul 17 2017');
+      createComponent({
+        props: {
+          minDate,
+          maxDate,
+        },
+      });
+
+      const icons = findAllCollapsedCalendarIcons();
+
+      expect(icons.length).toBe(2);
+      expect(icons.at(0).text()).toBe('Jul 17 2016');
+      expect(icons.at(1).text()).toBe('Jul 17 2017');
     });
   });
 
   describe('minDate', () => {
-    beforeEach((done) => {
-      vm.minDate = new Date('07/17/2016');
-      Vue.nextTick(done);
-    });
-
     it('should render minDate in collapsed-calendar-icon', () => {
-      const icons = vm.$el.querySelectorAll('.sidebar-collapsed-icon');
+      createComponent({
+        props: {
+          minDate,
+        },
+      });
+
+      const icons = findAllCollapsedCalendarIcons();
 
-      expect(icons.length).toEqual(1);
-      expect(icons[0].innerText.trim()).toEqual('From Jul 17 2016');
+      expect(icons.length).toBe(1);
+      expect(icons.at(0).text()).toBe('From Jul 17 2016');
     });
   });
 
   describe('maxDate', () => {
-    beforeEach((done) => {
-      vm.maxDate = new Date('07/17/2017');
-      Vue.nextTick(done);
-    });
-
     it('should render maxDate in collapsed-calendar-icon', () => {
-      const icons = vm.$el.querySelectorAll('.sidebar-collapsed-icon');
-
-      expect(icons.length).toEqual(1);
-      expect(icons[0].innerText.trim()).toEqual('Until Jul 17 2017');
+      createComponent({
+        props: {
+          maxDate,
+        },
+      });
+      const icons = findAllCollapsedCalendarIcons();
+
+      expect(icons.length).toBe(1);
+      expect(icons.at(0).text()).toBe('Until Jul 17 2017');
     });
   });
 
   describe('no dates', () => {
+    beforeEach(() => {
+      createComponent();
+    });
+
     it('should render None', () => {
-      const icons = vm.$el.querySelectorAll('.sidebar-collapsed-icon');
+      const icons = findAllCollapsedCalendarIcons();
 
-      expect(icons.length).toEqual(1);
-      expect(icons[0].innerText.trim()).toEqual('None');
+      expect(icons.length).toBe(1);
+      expect(icons.at(0).text()).toBe('None');
     });
 
     it('should have tooltip as `Start and due date`', () => {
-      const icons = vm.$el.querySelectorAll('.sidebar-collapsed-icon');
+      const icons = findAllCollapsedCalendarIcons();
 
-      expect(icons[0].title).toBe('Start and due date');
+      expect(icons.at(0).props('tooltipText')).toBe('Start and due date');
     });
   });
 });

spec/frontend/vue_shared/components/sidebar/date_picker_spec.js

+import { GlLoadingIcon } from '@gitlab/ui';
 import { mount } from '@vue/test-utils';
 import DatePicker from '~/vue_shared/components/pikaday.vue';
 import SidebarDatePicker from '~/vue_shared/components/sidebar/date_picker.vue';
@@ -5,14 +6,8 @@ import SidebarDatePicker from '~/vue_shared/components/sidebar/date_picker.vue';
 describe('SidebarDatePicker', () => {
   let wrapper;
 
-  const mountComponent = (propsData = {}, data = {}) => {
-    if (wrapper) {
-      throw new Error('tried to call mountComponent without d');
-    }
+  const createComponent = (propsData = {}, data = {}) => {
     wrapper = mount(SidebarDatePicker, {
-      stubs: {
-        DatePicker: true,
-      },
       propsData,
       data: () => data,
     });
@@ -20,87 +15,93 @@ describe('SidebarDatePicker', () => {
 
   afterEach(() => {
     wrapper.destroy();
-    wrapper = null;
   });
 
+  const findDatePicker = () => wrapper.findComponent(DatePicker);
+  const findLoadingIcon = () => wrapper.findComponent(GlLoadingIcon);
+  const findEditButton = () => wrapper.find('.title .btn-blank');
+  const findRemoveButton = () => wrapper.find('.value-content .btn-blank');
+  const findSidebarToggle = () => wrapper.find('.title .gutter-toggle');
+  const findValueContent = () => wrapper.find('.value-content');
+
   it('should emit toggleCollapse when collapsed toggle sidebar is clicked', () => {
-    mountComponent();
+    createComponent();
 
-    wrapper.find('.issuable-sidebar-header .gutter-toggle').element.click();
+    wrapper.find('.issuable-sidebar-header .gutter-toggle').trigger('click');
 
     expect(wrapper.emitted('toggleCollapse')).toEqual([[]]);
   });
 
   it('should render collapsed-calendar-icon', () => {
-    mountComponent();
+    createComponent();
 
-    expect(wrapper.find('.sidebar-collapsed-icon').element).toBeDefined();
+    expect(wrapper.find('.sidebar-collapsed-icon').exists()).toBe(true);
   });
 
   it('should render value when not editing', () => {
-    mountComponent();
+    createComponent();
 
-    expect(wrapper.find('.value-content').element).toBeDefined();
+    expect(findValueContent().exists()).toBe(true);
   });
 
   it('should render None if there is no selectedDate', () => {
-    mountComponent();
+    createComponent();
 
-    expect(wrapper.find('.value-content span').text().trim()).toEqual('None');
+    expect(findValueContent().text()).toBe('None');
   });
 
   it('should render date-picker when editing', () => {
-    mountComponent({}, { editing: true });
+    createComponent({}, { editing: true });
 
-    expect(wrapper.find(DatePicker).element).toBeDefined();
+    expect(findDatePicker().exists()).toBe(true);
   });
 
   it('should render label', () => {
     const label = 'label';
-    mountComponent({ label });
-    expect(wrapper.find('.title').text().trim()).toEqual(label);
+    createComponent({ label });
+    expect(wrapper.find('.title').text()).toBe(label);
   });
 
   it('should render loading-icon when isLoading', () => {
-    mountComponent({ isLoading: true });
-    expect(wrapper.find('.gl-spinner').element).toBeDefined();
+    createComponent({ isLoading: true });
+    expect(findLoadingIcon().exists()).toBe(true);
   });
 
   describe('editable', () => {
     beforeEach(() => {
-      mountComponent({ editable: true });
+      createComponent({ editable: true });
     });
 
     it('should render edit button', () => {
-      expect(wrapper.find('.title .btn-blank').text().trim()).toEqual('Edit');
+      expect(findEditButton().text()).toBe('Edit');
     });
 
     it('should enable editing when edit button is clicked', async () => {
-      wrapper.find('.title .btn-blank').element.click();
+      findEditButton().trigger('click');
 
       await wrapper.vm.$nextTick();
 
-      expect(wrapper.vm.editing).toEqual(true);
+      expect(wrapper.vm.editing).toBe(true);
     });
   });
 
   it('should render date if selectedDate', () => {
-    mountComponent({ selectedDate: new Date('07/07/2017') });
+    createComponent({ selectedDate: new Date('07/07/2017') });
 
-    expect(wrapper.find('.value-content strong').text().trim()).toEqual('Jul 7, 2017');
+    expect(wrapper.find('.value-content strong').text()).toBe('Jul 7, 2017');
   });
 
   describe('selectedDate and editable', () => {
     beforeEach(() => {
-      mountComponent({ selectedDate: new Date('07/07/2017'), editable: true });
+      createComponent({ selectedDate: new Date('07/07/2017'), editable: true });
     });
 
     it('should render remove button if selectedDate and editable', () => {
-      expect(wrapper.find('.value-content .btn-blank').text().trim()).toEqual('remove');
+      expect(findRemoveButton().text()).toBe('remove');
     });
 
     it('should emit saveDate with null when remove button is clicked', () => {
-      wrapper.find('.value-content .btn-blank').element.click();
+      findRemoveButton().trigger('click');
 
       expect(wrapper.emitted('saveDate')).toEqual([[null]]);
     });
@@ -108,15 +109,15 @@ describe('SidebarDatePicker', () => {
 
   describe('showToggleSidebar', () => {
     beforeEach(() => {
-      mountComponent({ showToggleSidebar: true });
+      createComponent({ showToggleSidebar: true });
     });
 
     it('should render toggle-sidebar when showToggleSidebar', () => {
-      expect(wrapper.find('.title .gutter-toggle').element).toBeDefined();
+      expect(findSidebarToggle().exists()).toBe(true);
     });
 
     it('should emit toggleCollapse when toggle sidebar is clicked', () => {
-      wrapper.find('.title .gutter-toggle').element.click();
+      findSidebarToggle().trigger('click');
 
       expect(wrapper.emitted('toggleCollapse')).toEqual([[]]);
     });

spec/frontend/vue_shared/components/sidebar/labels_select_vue/dropdown_value_collapsed_spec.js

-import Vue from 'vue';
+import { shallowMount } from '@vue/test-utils';
+import { GlIcon } from '@gitlab/ui';
+import { createMockDirective, getBinding } from 'helpers/vue_mock_directive';
+import DropdownValueCollapsedComponent from '~/vue_shared/components/sidebar/labels_select_vue/dropdown_value_collapsed.vue';
 
-import mountComponent from 'helpers/vue_mount_component_helper';
-import dropdownValueCollapsedComponent from '~/vue_shared/components/sidebar/labels_select_vue/dropdown_value_collapsed.vue';
+import { mockCollapsedLabels as mockLabels, mockRegularLabel } from './mock_data';
 
-import { mockCollapsedLabels as mockLabels } from './mock_data';
-
-const createComponent = (labels = mockLabels) => {
-  const Component = Vue.extend(dropdownValueCollapsedComponent);
+describe('DropdownValueCollapsedComponent', () => {
+  let wrapper;
 
-  return mountComponent(Component, {
-    labels,
-  });
-};
+  const defaultProps = {
+    labels: [],
+  };
 
-describe('DropdownValueCollapsedComponent', () => {
-  let vm;
+  const mockManyLabels = [...mockLabels, ...mockLabels, ...mockLabels];
 
-  beforeEach(() => {
-    vm = createComponent();
-  });
+  const createComponent = ({ props = {} } = {}) => {
+    wrapper = shallowMount(DropdownValueCollapsedComponent, {
+      propsData: { ...defaultProps, ...props },
+      directives: {
+        GlTooltip: createMockDirective(),
+      },
+    });
+  };
 
   afterEach(() => {
-    vm.$destroy();
+    wrapper.destroy();
   });
 
-  describe('computed', () => {
-    describe('labelsList', () => {
-      it('returns default text when `labels` prop is empty array', () => {
-        const vmEmptyLabels = createComponent([]);
+  const findGlIcon = () => wrapper.findComponent(GlIcon);
+  const getTooltip = () => getBinding(wrapper.element, 'gl-tooltip');
 
-        expect(vmEmptyLabels.labelsList).toBe('Labels');
-        vmEmptyLabels.$destroy();
-      });
-
-      it('returns labels names separated by coma when `labels` prop has more than one item', () => {
-        const labels = mockLabels.concat(mockLabels);
-        const vmMoreLabels = createComponent(labels);
+  describe('template', () => {
+    it('renders tags icon element', () => {
+      createComponent();
 
-        const expectedText = labels.map((label) => label.title).join(', ');
+      expect(findGlIcon().exists()).toBe(true);
+    });
 
-        expect(vmMoreLabels.labelsList).toBe(expectedText);
-        vmMoreLabels.$destroy();
-      });
+    it('emits onValueClick event on click', async () => {
+      createComponent();
 
-      it('returns labels names separated by coma with remaining labels count and `and more` phrase when `labels` prop has more than five items', () => {
-        const mockMoreLabels = Object.assign([], mockLabels);
-        for (let i = 0; i < 6; i += 1) {
-          mockMoreLabels.unshift(mockLabels[0]);
-        }
+      wrapper.trigger('click');
 
-        const vmMoreLabels = createComponent(mockMoreLabels);
+      await wrapper.vm.$nextTick();
 
-        const expectedText = `${mockMoreLabels
-          .slice(0, 5)
-          .map((label) => label.title)
-          .join(', ')}, and ${mockMoreLabels.length - 5} more`;
+      expect(wrapper.emitted('onValueClick')[0]).toBeDefined();
+    });
 
-        expect(vmMoreLabels.labelsList).toBe(expectedText);
-        vmMoreLabels.$destroy();
+    describe.each`
+      scenario                            | labels                | expectedResult                                          | expectedText
+      ${'`labels` is empty'}              | ${[]}                 | ${'default text'}                                       | ${'Labels'}
+      ${'`labels` has 1 item'}            | ${[mockRegularLabel]} | ${'label name'}                                         | ${'Foo Label'}
+      ${'`labels` has 2 items'}           | ${mockLabels}         | ${'comma separated label names'}                        | ${'Foo Label, Foo::Bar'}
+      ${'`labels` has more than 5 items'} | ${mockManyLabels}     | ${'comma separated label names with "and more" phrase'} | ${'Foo Label, Foo::Bar, Foo Label, Foo::Bar, Foo Label, and 1 more'}
+    `('when $scenario', ({ labels, expectedResult, expectedText }) => {
+      beforeEach(() => {
+        createComponent({
+          props: {
+            labels,
+          },
+        });
       });
 
-      it('returns first label name when `labels` prop has only one item present', () => {
-        const text = mockLabels.map((label) => label.title).join(', ');
-
-        expect(vm.labelsList).toBe(text);
+      it('renders labels count', () => {
+        expect(wrapper.text()).toBe(`${labels.length}`);
       });
-    });
-  });
-
-  describe('methods', () => {
-    describe('handleClick', () => {
-      it('emits onValueClick event on component', () => {
-        jest.spyOn(vm, '$emit').mockImplementation(() => {});
-        vm.handleClick();
 
-        expect(vm.$emit).toHaveBeenCalledWith('onValueClick');
+      it(`renders "${expectedResult}" as tooltip`, () => {
+        expect(getTooltip().value).toBe(expectedText);
       });
     });
   });
-
-  describe('template', () => {
-    it('renders component container element with tooltip`', () => {
-      expect(vm.$el.title).toBe(vm.labelsList);
-    });
-
-    it('renders tags icon element', () => {
-      expect(vm.$el.querySelector('[data-testid="labels-icon"]')).not.toBeNull();
-    });
-
-    it('renders labels count', () => {
-      expect(vm.$el.querySelector('span').innerText.trim()).toBe(`${vm.labels.length}`);
-    });
-  });
 });

spec/frontend/vue_shared/components/sidebar/toggle_sidebar_spec.js

-import Vue from 'vue';
-import mountComponent from 'helpers/vue_mount_component_helper';
-import toggleSidebar from '~/vue_shared/components/sidebar/toggle_sidebar.vue';
-
-describe('toggleSidebar', () => {
-  let vm;
-  beforeEach(() => {
-    const ToggleSidebar = Vue.extend(toggleSidebar);
-    vm = mountComponent(ToggleSidebar, {
-      collapsed: true,
+import { GlButton } from '@gitlab/ui';
+import { mount, shallowMount } from '@vue/test-utils';
+
+import ToggleSidebar from '~/vue_shared/components/sidebar/toggle_sidebar.vue';
+
+describe('ToggleSidebar', () => {
+  let wrapper;
+
+  const defaultProps = {
+    collapsed: true,
+  };
+
+  const createComponent = ({ mountFn = shallowMount, props = {} } = {}) => {
+    wrapper = mountFn(ToggleSidebar, {
+      propsData: { ...defaultProps, ...props },
     });
+  };
+
+  afterEach(() => {
+    wrapper.destroy();
   });
 
+  const findGlButton = () => wrapper.findComponent(GlButton);
+
   it('should render the "chevron-double-lg-left" icon when collapsed', () => {
-    expect(vm.$el.querySelector('[data-testid="chevron-double-lg-left-icon"]')).not.toBeNull();
+    createComponent();
+
+    expect(findGlButton().props('icon')).toBe('chevron-double-lg-left');
   });
 
   it('should render the "chevron-double-lg-right" icon when expanded', async () => {
-    vm.collapsed = false;
-    await Vue.nextTick();
-    expect(vm.$el.querySelector('[data-testid="chevron-double-lg-right-icon"]')).not.toBeNull();
+    createComponent({ props: { collapsed: false } });
+
+    expect(findGlButton().props('icon')).toBe('chevron-double-lg-right');
   });
 
-  it('should emit toggle event when button clicked', () => {
-    const toggle = jest.fn();
-    vm.$on('toggle', toggle);
-    vm.$el.click();
+  it('should emit toggle event when button clicked', async () => {
+    createComponent({ mountFn: mount });
+
+    findGlButton().trigger('click');
+    await wrapper.vm.$nextTick();
 
-    expect(toggle).toHaveBeenCalled();
+    expect(wrapper.emitted('toggle')[0]).toBeDefined();
   });
 });