77 lines
2.2 KiB
JavaScript
77 lines
2.2 KiB
JavaScript
import { shallowMount } from '@vue/test-utils';
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import ReviewBar from '~/batch_comments/components/review_bar.vue';
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import { REVIEW_BAR_VISIBLE_CLASS_NAME } from '~/batch_comments/constants';
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import createStore from '../create_batch_comments_store';
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describe('Batch comments review bar component', () => {
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let store;
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let wrapper;
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let addEventListenerSpy;
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let removeEventListenerSpy;
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const createComponent = (propsData = {}) => {
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store = createStore();
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wrapper = shallowMount(ReviewBar, {
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store,
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propsData,
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});
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};
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beforeEach(() => {
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document.body.className = '';
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addEventListenerSpy = jest.spyOn(window, 'addEventListener');
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removeEventListenerSpy = jest.spyOn(window, 'removeEventListener');
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});
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afterEach(() => {
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addEventListenerSpy.mockRestore();
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removeEventListenerSpy.mockRestore();
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wrapper.destroy();
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});
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describe('when mounted', () => {
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it('it adds review-bar-visible class to body', async () => {
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expect(document.body.classList.contains(REVIEW_BAR_VISIBLE_CLASS_NAME)).toBe(false);
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createComponent();
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expect(document.body.classList.contains(REVIEW_BAR_VISIBLE_CLASS_NAME)).toBe(true);
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});
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it('it adds a blocking handler to the `beforeunload` window event', () => {
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expect(addEventListenerSpy).not.toBeCalled();
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createComponent();
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expect(addEventListenerSpy).toHaveBeenCalledTimes(1);
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expect(addEventListenerSpy).toBeCalledWith('beforeunload', expect.any(Function), {
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capture: true,
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});
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});
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});
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describe('before destroyed', () => {
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it('it removes review-bar-visible class to body', async () => {
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createComponent();
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wrapper.destroy();
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expect(document.body.classList.contains(REVIEW_BAR_VISIBLE_CLASS_NAME)).toBe(false);
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});
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it('it removes the blocking handler from the `beforeunload` window event', () => {
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createComponent();
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expect(removeEventListenerSpy).not.toBeCalled();
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wrapper.destroy();
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expect(removeEventListenerSpy).toHaveBeenCalledTimes(1);
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expect(removeEventListenerSpy).toBeCalledWith('beforeunload', expect.any(Function), {
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capture: true,
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});
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});
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});
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});
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