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metamask-extension/app/scripts/lib/segment/analytics.test.js
2022-10-11 20:34:32 +05:30

117 lines
3.6 KiB
JavaScript

import Analytics from './analytics';
const DUMMY_KEY = 'DUMMY_KEY';
const DUMMY_MESSAGE = {
userId: 'userId',
idValue: 'idValue',
event: 'event',
};
const FLUSH_INTERVAL = 10000;
global.setImmediate = (arg) => {
arg();
};
global.fetch = () =>
Promise.resolve({
ok: true,
json: () => Promise.resolve({ success: true }),
});
describe('Analytics', function () {
let analytics;
beforeEach(() => {
analytics = new Analytics(DUMMY_KEY);
});
describe('#flush', function () {
it('first message is immediately flushed', function () {
const mock = jest.fn(analytics.flush);
analytics.flush = mock;
analytics.track(DUMMY_MESSAGE);
expect(analytics.queue).toHaveLength(0);
expect(mock).toHaveBeenCalledTimes(1);
});
it('after first message it is called when queue size equals flushAt value', function () {
analytics = new Analytics(DUMMY_KEY, { flushAt: 3 });
const mock = jest.fn(analytics.flush);
analytics.flush = mock;
analytics.track(DUMMY_MESSAGE);
analytics.track(DUMMY_MESSAGE);
analytics.track(DUMMY_MESSAGE);
analytics.track(DUMMY_MESSAGE);
expect(analytics.queue).toHaveLength(0);
expect(mock).toHaveBeenCalledTimes(2);
});
it('except for first message it is called until queue size is less than flushAt value', function () {
analytics = new Analytics(DUMMY_KEY, { flushAt: 3 });
const mock = jest.fn(analytics.flush);
analytics.flush = mock;
analytics.track(DUMMY_MESSAGE);
analytics.track(DUMMY_MESSAGE);
analytics.track(DUMMY_MESSAGE);
expect(analytics.queue).toHaveLength(2);
expect(mock).toHaveBeenCalledTimes(1);
});
it('after first message it is called after flushInterval is elapsed', function () {
jest.useFakeTimers();
analytics = new Analytics(DUMMY_KEY, { flushInterval: FLUSH_INTERVAL });
const mock = jest.fn(analytics.flush);
analytics.flush = mock;
analytics.track(DUMMY_MESSAGE);
analytics.track(DUMMY_MESSAGE);
jest.advanceTimersByTime(FLUSH_INTERVAL);
expect(analytics.queue).toHaveLength(0);
expect(mock).toHaveBeenCalledTimes(2);
});
it('after first message it is not called until flushInterval is elapsed', function () {
jest.useFakeTimers();
analytics = new Analytics(DUMMY_KEY, { flushInterval: FLUSH_INTERVAL });
const mock = jest.fn(analytics.flush);
analytics.flush = mock;
analytics.track(DUMMY_MESSAGE);
analytics.track(DUMMY_MESSAGE);
jest.advanceTimersByTime(FLUSH_INTERVAL - 100);
expect(analytics.queue).toHaveLength(1);
expect(mock).toHaveBeenCalledTimes(1);
});
it('invokes callbacks', async function () {
const callback = jest.fn();
analytics.track(DUMMY_MESSAGE);
analytics.track(DUMMY_MESSAGE, callback);
await analytics.flush();
expect(callback).toHaveBeenCalledTimes(1);
});
});
describe('#track', function () {
it('adds messages to ququq', function () {
analytics.track(DUMMY_MESSAGE);
analytics.track(DUMMY_MESSAGE);
expect(analytics.queue).toHaveLength(1);
});
});
describe('#page', function () {
it('adds messages to ququq', function () {
analytics.page(DUMMY_MESSAGE);
analytics.page(DUMMY_MESSAGE);
expect(analytics.queue).toHaveLength(1);
});
});
describe('#identify', function () {
it('adds messages to ququq', function () {
analytics.identify(DUMMY_MESSAGE);
analytics.identify(DUMMY_MESSAGE);
expect(analytics.queue).toHaveLength(1);
});
});
});