debian-mirror-gitlab/spec/frontend/user_popovers_spec.js

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import { within } from '@testing-library/dom';
import { loadHTMLFixture, resetHTMLFixture } from 'helpers/fixtures';
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import UsersCache from '~/lib/utils/users_cache';
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import initUserPopovers from '~/user_popovers';
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import waitForPromises from 'helpers/wait_for_promises';
jest.mock('~/api/user_api', () => ({
followUser: jest.fn().mockResolvedValue({}),
unfollowUser: jest.fn().mockResolvedValue({}),
}));
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describe('User Popovers', () => {
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const fixtureTemplate = 'merge_requests/merge_request_with_mentions.html';
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const selector = '.js-user-link, .gfm-project_member';
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const findFixtureLinks = () => {
return Array.from(document.querySelectorAll(selector)).filter(
({ dataset }) => dataset.user || dataset.userId,
);
};
const createUserLink = () => {
const link = document.createElement('a');
link.classList.add('js-user-link');
link.setAttribute('data-user', '1');
return link;
};
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const dummyUser = { name: 'root', username: 'root', is_followed: false };
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const dummyUserStatus = { message: 'active' };
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let popovers;
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const triggerEvent = (eventName, el) => {
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const event = new MouseEvent(eventName, {
bubbles: true,
cancelable: true,
view: window,
});
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el.dispatchEvent(event);
};
beforeEach(() => {
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loadHTMLFixture(fixtureTemplate);
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const usersCacheSpy = () => Promise.resolve(dummyUser);
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jest.spyOn(UsersCache, 'retrieveById').mockImplementation((userId) => usersCacheSpy(userId));
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const userStatusCacheSpy = () => Promise.resolve(dummyUserStatus);
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jest
.spyOn(UsersCache, 'retrieveStatusById')
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.mockImplementation((userId) => userStatusCacheSpy(userId));
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jest.spyOn(UsersCache, 'updateById');
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popovers = initUserPopovers(document.querySelectorAll(selector));
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});
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afterEach(() => {
resetHTMLFixture();
});
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it('initializes a popover for each user link with a user id', () => {
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const linksWithUsers = findFixtureLinks();
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expect(linksWithUsers.length).toBe(popovers.length);
});
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it('adds popovers to user links added to the DOM tree after the initial call', async () => {
document.body.appendChild(createUserLink());
document.body.appendChild(createUserLink());
const linksWithUsers = findFixtureLinks();
expect(linksWithUsers.length).toBe(popovers.length + 2);
});
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it('does not initialize the user popovers twice for the same element', () => {
const newPopovers = initUserPopovers(document.querySelectorAll(selector));
const samePopovers = popovers.every((popover, index) => newPopovers[index] === popover);
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expect(samePopovers).toBe(true);
});
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describe('when user link emits mouseenter event', () => {
let userLink;
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beforeEach(() => {
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UsersCache.retrieveById.mockReset();
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userLink = document.querySelector(selector);
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triggerEvent('mouseenter', userLink);
});
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it('removes title attribute from user links', () => {
expect(userLink.getAttribute('title')).toBeFalsy();
expect(userLink.dataset.originalTitle).toBeFalsy();
});
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it('populates popovers with preloaded user data', () => {
const { name, userId, username } = userLink.dataset;
const [firstPopover] = popovers;
expect(firstPopover.$props.user).toEqual(
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expect.objectContaining({
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name,
userId,
username,
}),
);
});
it('fetches user info and status from the user cache', () => {
const { userId } = userLink.dataset;
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expect(UsersCache.retrieveById).toHaveBeenCalledWith(userId);
expect(UsersCache.retrieveStatusById).toHaveBeenCalledWith(userId);
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});
});
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it('removes aria-describedby attribute from the user link on mouseleave', () => {
const userLink = document.querySelector(selector);
userLink.setAttribute('aria-describedby', 'popover');
triggerEvent('mouseleave', userLink);
expect(userLink.getAttribute('aria-describedby')).toBe(null);
});
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it('updates toggle follow button and `UsersCache` when toggle follow button is clicked', async () => {
const [firstPopover] = popovers;
const withinFirstPopover = within(firstPopover.$el);
const findFollowButton = () => withinFirstPopover.queryByRole('button', { name: 'Follow' });
const findUnfollowButton = () => withinFirstPopover.queryByRole('button', { name: 'Unfollow' });
const userLink = document.querySelector(selector);
triggerEvent('mouseenter', userLink);
await waitForPromises();
const { userId } = document.querySelector(selector).dataset;
triggerEvent('click', findFollowButton());
await waitForPromises();
expect(findUnfollowButton()).not.toBe(null);
expect(UsersCache.updateById).toHaveBeenCalledWith(userId, { is_followed: true });
triggerEvent('click', findUnfollowButton());
await waitForPromises();
expect(findFollowButton()).not.toBe(null);
expect(UsersCache.updateById).toHaveBeenCalledWith(userId, { is_followed: false });
});
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});