mirror of https://github.com/denoland/deno.git
101 lines
2.1 KiB
TypeScript
101 lines
2.1 KiB
TypeScript
// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
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import { test, assert } from "./test_util.ts";
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test(function globalThisExists(): void {
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assert(globalThis != null);
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});
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test(function windowExists(): void {
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assert(window != null);
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});
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test(function windowWindowExists(): void {
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assert(window.window === window);
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});
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test(function globalThisEqualsWindow(): void {
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assert(globalThis === window);
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});
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test(function DenoNamespaceExists(): void {
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assert(Deno != null);
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});
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test(function DenoNamespaceEqualsWindowDeno(): void {
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assert(Deno === window.Deno);
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});
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test(function DenoNamespaceIsFrozen(): void {
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assert(Object.isFrozen(Deno));
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});
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test(function webAssemblyExists(): void {
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assert(typeof WebAssembly.compile === "function");
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});
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test(function DenoNamespaceImmutable(): void {
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const denoCopy = window.Deno;
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try {
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// @ts-ignore
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Deno = 1;
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} catch {}
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assert(denoCopy === Deno);
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try {
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// @ts-ignore
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window.Deno = 1;
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} catch {}
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assert(denoCopy === Deno);
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try {
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delete window.Deno;
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} catch {}
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assert(denoCopy === Deno);
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const { readFile } = Deno;
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try {
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// @ts-ignore
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Deno.readFile = 1;
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} catch {}
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assert(readFile === Deno.readFile);
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try {
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delete window.Deno.readFile;
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} catch {}
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assert(readFile === Deno.readFile);
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// @ts-ignore
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const { print } = Deno.core;
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try {
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// @ts-ignore
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Deno.core.print = 1;
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} catch {}
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// @ts-ignore
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assert(print === Deno.core.print);
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try {
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// @ts-ignore
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delete Deno.core.print;
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} catch {}
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// @ts-ignore
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assert(print === Deno.core.print);
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});
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test(async function windowQueueMicrotask(): Promise<void> {
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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((res): void => {
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resolve1 = (): void => {
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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((res): void => {
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resolve2 = (): void => {
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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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