114 lines
2.8 KiB
JavaScript
114 lines
2.8 KiB
JavaScript
import {
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openUserCountsBroadcast,
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closeUserCountsBroadcast,
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refreshUserMergeRequestCounts,
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} from '~/commons/nav/user_merge_requests';
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import Api from '~/api';
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jest.mock('~/api');
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const TEST_COUNT = 1000;
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const MR_COUNT_CLASS = 'merge-requests-count';
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describe('User Merge Requests', () => {
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let channelMock;
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let newBroadcastChannelMock;
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beforeEach(() => {
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global.gon.current_user_id = 123;
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channelMock = {
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postMessage: jest.fn(),
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close: jest.fn(),
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};
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newBroadcastChannelMock = jest.fn().mockImplementation(() => channelMock);
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global.BroadcastChannel = newBroadcastChannelMock;
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setFixtures(`<div class="${MR_COUNT_CLASS}">0</div>`);
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});
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const findMRCountText = () => document.body.querySelector(`.${MR_COUNT_CLASS}`).textContent;
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describe('refreshUserMergeRequestCounts', () => {
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beforeEach(() => {
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Api.userCounts.mockReturnValue(
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Promise.resolve({
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data: { merge_requests: TEST_COUNT },
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}),
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);
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});
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describe('with open broadcast channel', () => {
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beforeEach(() => {
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openUserCountsBroadcast();
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return refreshUserMergeRequestCounts();
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});
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it('updates the top count of merge requests', () => {
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expect(findMRCountText()).toEqual(TEST_COUNT.toLocaleString());
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});
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it('calls the API', () => {
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expect(Api.userCounts).toHaveBeenCalled();
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});
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it('posts count to BroadcastChannel', () => {
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expect(channelMock.postMessage).toHaveBeenCalledWith(TEST_COUNT);
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});
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});
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describe('without open broadcast channel', () => {
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beforeEach(() => refreshUserMergeRequestCounts());
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it('does not post anything', () => {
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expect(channelMock.postMessage).not.toHaveBeenCalled();
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});
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});
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});
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describe('openUserCountsBroadcast', () => {
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beforeEach(() => {
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openUserCountsBroadcast();
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});
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it('creates BroadcastChannel that updates DOM on message received', () => {
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expect(findMRCountText()).toEqual('0');
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channelMock.onmessage({ data: TEST_COUNT });
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expect(findMRCountText()).toEqual(TEST_COUNT.toLocaleString());
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});
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it('closes if called while already open', () => {
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expect(channelMock.close).not.toHaveBeenCalled();
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openUserCountsBroadcast();
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expect(channelMock.close).toHaveBeenCalled();
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});
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});
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describe('closeUserCountsBroadcast', () => {
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describe('when not opened', () => {
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it('does nothing', () => {
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expect(channelMock.close).not.toHaveBeenCalled();
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});
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});
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describe('when opened', () => {
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beforeEach(() => {
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openUserCountsBroadcast();
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});
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it('closes', () => {
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expect(channelMock.close).not.toHaveBeenCalled();
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closeUserCountsBroadcast();
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expect(channelMock.close).toHaveBeenCalled();
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});
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});
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});
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});
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