node-unhandled-rejection/test/test.js

'use strict';

let isWebWorker = (typeof WorkerGlobalScope !== "undefined");
let isNode = (typeof process !== "undefined" && process.browser !== true);
let isBrowser = (!isNode && !isWebWorker && typeof document !== "undefined");

let environmentName = "";

if (isWebWorker) {
	environmentName = "WebWorker";
} else if (isBrowser) {
	environmentName = "Browser";
} else if (isNode) {
	environmentName = "Node";
} else {
	environmentName = "Unknown environment";
}

function supportsWebWorkers() {
	return !!window.Worker;
}

if (isBrowser || isWebWorker) {
	const debug = require("debug");
	debug.enable("*");
}

const unhandledRejection = require("../");

let emitter = unhandledRejection();

emitter.on("unhandledRejection", (error, promise) => {
	console.log(`Caught an error in <${environmentName}>! ${error.message}`)
});

const BPromise = require("bluebird");
const QPromise = require("q");
const WPromise = require("when");
const YPromise = require("yaku");

/* Workaround for stefanpenner/es6-promise#183 */
let _nativePromise = Promise;
const EPromise = require("es6-promise").Promise;
Promise = _nativePromise;

Promise.resolve().then(() => {
	console.log("Throwing Native...")
	throw new Error("Native")
});

BPromise.resolve().then(() => {
	console.log("Throwing Bluebird...")
	throw new Error("Bluebird")
});

QPromise.resolve().then(() => {
	console.log("Throwing Q...")
	throw new Error("Q")
});

WPromise.resolve().then(() => {
	console.log("Throwing WhenJS...")
	throw new Error("WhenJS")
});

YPromise.resolve().then(() => {
	console.log("Throwing Yaku...")
	throw new Error("Yaku")
});

/* Disabled until stefanpenner/es6-promise#70 is resolved
EPromise.resolve().then(() => {
	console.log("Throwing es6-promise...")
	throw new Error("es6-promise")
});
*/

if (isBrowser && supportsWebWorkers) {
	let worker = new Worker("test.webworker.js");
}