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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.import { assertEquals, assertRejects } from "../testing/asserts.ts";import { deferred } from "./deferred.ts";import { abortable } from "./abortable.ts";
Deno.test("[async] abortable (Promise)", async () => {  const c = new AbortController();  const p = deferred();  const t = setTimeout(() => p.resolve("Hello"), 100);  const result = await abortable(p, c.signal);  assertEquals(result, "Hello");  clearTimeout(t);});
Deno.test("[async] abortable (Promise) with signal aborted after delay", async () => {  const c = new AbortController();  const p = deferred();  const t = setTimeout(() => p.resolve("Hello"), 100);  setTimeout(() => c.abort(), 50);  await assertRejects(    async () => {      await abortable(p, c.signal);    },    DOMException,    "AbortError",  );  clearTimeout(t);});
Deno.test("[async] abortable (Promise) with already aborted signal", async () => {  const c = new AbortController();  const p = deferred();  const t = setTimeout(() => p.resolve("Hello"), 100);  c.abort();  await assertRejects(    async () => {      await abortable(p, c.signal);    },    DOMException,    "AbortError",  );  clearTimeout(t);});
Deno.test("[async] abortable (AsyncIterable)", async () => {  const c = new AbortController();  const p = deferred();  const t = setTimeout(() => p.resolve("Hello"), 100);  const a = async function* () {    yield "Hello";    await p;    yield "World";  };  const items: string[] = [];  for await (const item of abortable(a(), c.signal)) {    items.push(item);  }  assertEquals(items, ["Hello", "World"]);  clearTimeout(t);});
Deno.test("[async] abortable (AsyncIterable) with signal aborted after delay", async () => {  const c = new AbortController();  const p = deferred();  const t = setTimeout(() => p.resolve("Hello"), 100);  const a = async function* () {    yield "Hello";    await p;    yield "World";  };  setTimeout(() => c.abort(), 50);  const items: string[] = [];  await assertRejects(    async () => {      for await (const item of abortable(a(), c.signal)) {        items.push(item);      }    },    DOMException,    "AbortError",  );  assertEquals(items, ["Hello"]);  clearTimeout(t);});
Deno.test("[async] abortable (AsyncIterable) with already aborted signal", async () => {  const c = new AbortController();  const p = deferred();  const t = setTimeout(() => p.resolve("Hello"), 100);  const a = async function* () {    yield "Hello";    await p;    yield "World";  };  c.abort();  const items: string[] = [];  await assertRejects(    async () => {      for await (const item of abortable(a(), c.signal)) {        items.push(item);      }    },    DOMException,    "AbortError",  );  assertEquals(items, []);  clearTimeout(t);});