suitest-js-api/lib/utils/chainPromise.js

Suitest is a test automation and device manipulation tool for living room devices and web browsers.

const {stackTraceWrapper} = require('./stackTraceParser');
const {captureException} = require('../utils/sentry/Raven');

let currentPromise = Promise.resolve();

/**
 * Callback for `chainPromise` function
 *
 * @callback chainPromiseCallback
 * @param {*} args
 * @return {Promise<*>}
 */

/**
 * Only keep one Promise in chain, always refer to it when next promise has to be chained
 * @param {chainPromiseCallback} callback
 * @returns {function}
 */

const chainPromise = callback => (...args) => {
	const wrappedCallback = stackTraceWrapper(() => callback(...args));

	currentPromise = currentPromise.then(wrappedCallback, async(err) => {
		await captureException(err);

		return wrappedCallback();
	});

	return currentPromise;
};

module.exports = chainPromise;