std@0.139.0/streams/merge_test.ts

Deno standard library
GitHub Stars
2218
Go to latest
merge_test.ts
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
import { mergeReadableStreams, zipReadableStreams } from "./merge.ts";import { assertEquals } from "../testing/asserts.ts";
Deno.test("[streams] mergeReadableStreams", async () => { const textStream = new ReadableStream<string>({ start(controller) { controller.enqueue("qwertzuiopasd"); controller.enqueue("mnbvcxylkjhgfds"); controller.enqueue("apoiuztrewq0987654321"); controller.close(); }, });
const textStream2 = new ReadableStream<string>({ start(controller) { controller.enqueue("mnbvcxylkjhgfds"); controller.enqueue("apoiuztrewq0987654321"); controller.enqueue("qwertzuiopasd"); controller.close(); }, });
const buf = []; for await (const s of mergeReadableStreams(textStream, textStream2)) { buf.push(s); }
assertEquals(buf.sort(), [ "apoiuztrewq0987654321", "apoiuztrewq0987654321", "mnbvcxylkjhgfds", "mnbvcxylkjhgfds", "qwertzuiopasd", "qwertzuiopasd", ]);});
Deno.test("[streams] zipReadableStreams", async () => { const textStream = new ReadableStream<string>({ start(controller) { controller.enqueue("qwertzuiopasd"); controller.enqueue("mnbvcxylkjhgfds"); controller.enqueue("apoiuztrewq0987321"); controller.close(); }, });
const textStream2 = new ReadableStream<string>({ start(controller) { controller.enqueue("mnbvcxylkjhgfdsewr"); controller.enqueue("apoiuztrewq0987654321"); controller.enqueue("qwertzuiopasq123d"); controller.close(); }, });
const buf = []; for await (const s of zipReadableStreams(textStream, textStream2)) { buf.push(s); }
assertEquals(buf, [ "qwertzuiopasd", "mnbvcxylkjhgfdsewr", "mnbvcxylkjhgfds", "apoiuztrewq0987654321", "apoiuztrewq0987321", "qwertzuiopasq123d", ]);});