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918ed6c474
This was done using the following script:
37e3803c7a/processors/chromeutils-import.jsm
MozReview-Commit-ID: 1Nc3XDu0wGl
--HG--
extra : source : 12fc4dee861c812fd2bd032c63ef17af61800c70
extra : intermediate-source : 34c999fa006bffe8705cf50c54708aa21a962e62
extra : histedit_source : b2be2c5e5d226e6c347312456a6ae339c1e634b0
103 lines
4 KiB
JavaScript
103 lines
4 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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* http://creativecommons.org/publicdomain/zero/1.0/ */
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/* eslint-disable mozilla/no-arbitrary-setTimeout */
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"use strict";
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ChromeUtils.import("resource://gre/modules/PromiseUtils.jsm");
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ChromeUtils.import("resource://gre/modules/Timer.jsm");
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ChromeUtils.import("resource://testing-common/PromiseTestUtils.jsm");
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// Tests for PromiseUtils.jsm
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// Tests for PromiseUtils.defer()
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/* Tests for checking the resolve method of the Deferred object
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* returned by PromiseUtils.defer() */
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add_task(async function test_resolve_string() {
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let def = PromiseUtils.defer();
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let expected = "The promise is resolved " + Math.random();
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def.resolve(expected);
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let result = await def.promise;
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Assert.equal(result, expected, "def.resolve() resolves the promise");
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});
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/* Test for the case when undefined is passed to the resolve method
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* of the Deferred object */
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add_task(async function test_resolve_undefined() {
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let def = PromiseUtils.defer();
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def.resolve();
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let result = await def.promise;
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Assert.equal(result, undefined, "resolve works with undefined as well");
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});
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/* Test when a pending promise is passed to the resolve method
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* of the Deferred object */
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add_task(async function test_resolve_pending_promise() {
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let def = PromiseUtils.defer();
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let expected = 100 + Math.random();
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let p = new Promise((resolve, reject) => {
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setTimeout(() => resolve(expected), 100);
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});
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def.resolve(p);
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let result = await def.promise;
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Assert.equal(result, expected, "def.promise assumed the state of the passed promise");
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});
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/* Test when a resovled promise is passed
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* to the resolve method of the Deferred object */
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add_task(async function test_resolve_resolved_promise() {
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let def = PromiseUtils.defer();
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let expected = "Yeah resolved" + Math.random();
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let p = new Promise((resolve, reject) => resolve(expected));
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def.resolve(p);
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let result = await def.promise;
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Assert.equal(result, expected, "Resolved promise is passed to the resolve method");
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});
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/* Test for the case when a rejected promise is
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* passed to the resolve method */
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add_task(async function test_resolve_rejected_promise() {
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let def = PromiseUtils.defer();
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let p = new Promise((resolve, reject) => reject(new Error("There its an rejection")));
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def.resolve(p);
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await Assert.rejects(def.promise, /There its an rejection/, "Settled rejection promise passed to the resolve method");
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});
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/* Test for the checking the reject method of
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* the Deferred object returned by PromiseUtils.defer() */
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add_task(async function test_reject_Error() {
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let def = PromiseUtils.defer();
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def.reject(new Error("This one rejects"));
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await Assert.rejects(def.promise, /This one rejects/, "reject method with Error for rejection");
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});
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/* Test for the case when a pending Promise is passed to
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* the reject method of Deferred object */
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add_task(async function test_reject_pending_promise() {
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let def = PromiseUtils.defer();
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let p = new Promise((resolve, reject) => {
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setTimeout(() => resolve(100), 100);
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});
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def.reject(p);
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await Assert.rejects(def.promise, Promise, "Rejection with a pending promise uses the passed promise itself as the reason of rejection");
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});
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/* Test for the case when a resolved Promise
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* is passed to the reject method */
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add_task(async function test_reject_resolved_promise() {
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let def = PromiseUtils.defer();
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let p = new Promise((resolve, reject) => resolve("This resolved"));
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def.reject(p);
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await Assert.rejects(def.promise, Promise, "Rejection with a resolved promise uses the passed promise itself as the reason of rejection");
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});
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/* Test for the case when a rejected Promise is
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* passed to the reject method */
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add_task(async function test_reject_resolved_promise() {
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PromiseTestUtils.expectUncaughtRejection(/This one rejects/);
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let def = PromiseUtils.defer();
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let p = new Promise((resolve, reject) => reject(new Error("This one rejects")));
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def.reject(p);
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await Assert.rejects(def.promise, Promise, "Rejection with a rejected promise uses the passed promise itself as the reason of rejection");
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});
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