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