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219 lines
5.9 KiB
TypeScript
219 lines
5.9 KiB
TypeScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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// deno-lint-ignore-file no-window-prefix
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import { assert, assertEquals, assertRejects } from "./test_util.ts";
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Deno.test(function globalThisExists() {
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assert(globalThis != null);
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});
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Deno.test(function noInternalGlobals() {
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// globalThis.__bootstrap should not be there.
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for (const key of Object.keys(globalThis)) {
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assert(!key.startsWith("_"));
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}
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});
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Deno.test(function windowExists() {
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assert(window != null);
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});
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Deno.test(function selfExists() {
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assert(self != null);
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});
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Deno.test(function windowWindowExists() {
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assert(window.window === window);
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});
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Deno.test(function windowSelfExists() {
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assert(window.self === window);
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});
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Deno.test(function globalThisEqualsWindow() {
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assert(globalThis === window);
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});
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Deno.test(function globalThisEqualsSelf() {
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assert(globalThis === self);
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});
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Deno.test(function globalThisInstanceofWindow() {
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assert(globalThis instanceof Window);
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});
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Deno.test(function globalThisConstructorLength() {
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assert(globalThis.constructor.length === 0);
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});
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Deno.test(function globalThisInstanceofEventTarget() {
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assert(globalThis instanceof EventTarget);
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});
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Deno.test(function navigatorInstanceofNavigator() {
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// TODO(nayeemrmn): Add `Navigator` to deno_lint globals.
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// deno-lint-ignore no-undef
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assert(navigator instanceof Navigator);
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});
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Deno.test(function DenoNamespaceExists() {
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assert(Deno != null);
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});
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Deno.test(function DenoNamespaceEqualsWindowDeno() {
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assert(Deno === window.Deno);
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});
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Deno.test(function DenoNamespaceIsNotFrozen() {
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assert(!Object.isFrozen(Deno));
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});
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Deno.test(function webAssemblyExists() {
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assert(typeof WebAssembly.compile === "function");
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});
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// @ts-ignore This is not publicly typed namespace, but it's there for sure.
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const core = Deno[Deno.internal].core;
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Deno.test(function DenoNamespaceConfigurable() {
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const desc = Object.getOwnPropertyDescriptor(globalThis, "Deno");
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assert(desc);
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assert(desc.configurable);
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assert(!desc.writable);
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});
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Deno.test(function DenoCoreNamespaceIsImmutable() {
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const { print } = core;
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try {
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core.print = 1;
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} catch {
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// pass
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}
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assert(print === core.print);
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try {
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delete core.print;
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} catch {
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// pass
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}
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assert(print === core.print);
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});
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Deno.test(async function windowQueueMicrotask() {
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let resolve1: () => void | undefined;
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let resolve2: () => void | undefined;
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let microtaskDone = false;
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const p1 = new Promise<void>((res) => {
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resolve1 = () => {
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microtaskDone = true;
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res();
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};
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});
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const p2 = new Promise<void>((res) => {
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resolve2 = () => {
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assert(microtaskDone);
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res();
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};
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});
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window.queueMicrotask(resolve1!);
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setTimeout(resolve2!, 0);
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await p1;
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await p2;
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});
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Deno.test(function webApiGlobalThis() {
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assert(globalThis.FormData !== null);
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assert(globalThis.TextEncoder !== null);
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assert(globalThis.TextEncoderStream !== null);
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assert(globalThis.TextDecoder !== null);
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assert(globalThis.TextDecoderStream !== null);
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assert(globalThis.CountQueuingStrategy !== null);
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assert(globalThis.ByteLengthQueuingStrategy !== null);
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});
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Deno.test(function windowNameIsDefined() {
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assertEquals(typeof globalThis.name, "string");
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assertEquals(name, "");
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assertEquals(window.name, name);
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name = "foobar";
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assertEquals(window.name, "foobar");
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assertEquals(name, "foobar");
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name = "";
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assertEquals(window.name, "");
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assertEquals(name, "");
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});
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Deno.test(async function promiseWithResolvers() {
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{
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const { promise, resolve } = Promise.withResolvers();
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resolve(true);
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assert(await promise);
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}
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{
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const { promise, reject } = Promise.withResolvers();
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reject(new Error("boom!"));
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await assertRejects(() => promise, Error, "boom!");
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}
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});
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Deno.test(async function arrayFromAsync() {
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// Taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/fromAsync#examples
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// Thank you.
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const asyncIterable = (async function* () {
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for (let i = 0; i < 5; i++) {
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await new Promise((resolve) => setTimeout(resolve, 10 * i));
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yield i;
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}
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})();
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const a = await Array.fromAsync(asyncIterable);
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assertEquals(a, [0, 1, 2, 3, 4]);
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const b = await Array.fromAsync(new Map([[1, 2], [3, 4]]));
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assertEquals(b, [[1, 2], [3, 4]]);
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});
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// Taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/groupBy#examples
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Deno.test(function objectGroupBy() {
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const inventory = [
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{ name: "asparagus", type: "vegetables", quantity: 5 },
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{ name: "bananas", type: "fruit", quantity: 0 },
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{ name: "goat", type: "meat", quantity: 23 },
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{ name: "cherries", type: "fruit", quantity: 5 },
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{ name: "fish", type: "meat", quantity: 22 },
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];
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const result = Object.groupBy(inventory, ({ type }) => type);
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assertEquals(result, {
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vegetables: [
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{ name: "asparagus", type: "vegetables", quantity: 5 },
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],
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fruit: [
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{ name: "bananas", type: "fruit", quantity: 0 },
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{ name: "cherries", type: "fruit", quantity: 5 },
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],
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meat: [
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{ name: "goat", type: "meat", quantity: 23 },
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{ name: "fish", type: "meat", quantity: 22 },
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],
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});
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});
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// Taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/groupBy#examples
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Deno.test(function mapGroupBy() {
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const inventory = [
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{ name: "asparagus", type: "vegetables", quantity: 9 },
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{ name: "bananas", type: "fruit", quantity: 5 },
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{ name: "goat", type: "meat", quantity: 23 },
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{ name: "cherries", type: "fruit", quantity: 12 },
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{ name: "fish", type: "meat", quantity: 22 },
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];
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const restock = { restock: true };
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const sufficient = { restock: false };
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const result = Map.groupBy(
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inventory,
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({ quantity }) => quantity < 6 ? restock : sufficient,
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);
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assertEquals(result.get(restock), [{
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name: "bananas",
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type: "fruit",
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quantity: 5,
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}]);
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});
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