serverless-artillery/lib/lambda/node_modules/p-finally/index.js

A serverless performance testing tool. `serverless` + `artillery` = crush. a.k.a. Orbital Laziers [sic]

'use strict';
module.exports = (promise, onFinally) => {
	onFinally = onFinally || (() => {});

	return promise.then(
		val => new Promise(resolve => {
			resolve(onFinally());
		}).then(() => val),
		err => new Promise(resolve => {
			resolve(onFinally());
		}).then(() => {
			throw err;
		})
	);
};