std/streams/zip_readable_streams_test.ts

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.

import { assertEquals } from "@std/assert";
import { zipReadableStreams } from "./zip_readable_streams.ts";

Deno.test("zipReadableStreams()", async () => {
  const textStream = ReadableStream.from([
    "qwertzuiopasd",
    "mnbvcxylkjhgfds",
    "apoiuztrewq0987321",
  ]);

  const textStream2 = ReadableStream.from([
    "mnbvcxylkjhgfdsewr",
    "apoiuztrewq0987654321",
    "qwertzuiopasq123d",
  ]);

  const buf = await Array.fromAsync(
    zipReadableStreams(textStream, textStream2),
  );

  assertEquals(buf, [
    "qwertzuiopasd",
    "mnbvcxylkjhgfdsewr",
    "mnbvcxylkjhgfds",
    "apoiuztrewq0987654321",
    "apoiuztrewq0987321",
    "qwertzuiopasq123d",
  ]);
});