std/io/multi_reader_test.ts

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

import { assertEquals } from "@std/assert";
import { MultiReader } from "./multi_reader.ts";
import { StringWriter } from "./string_writer.ts";
import { copy } from "./copy.ts";
import { StringReader } from "./string_reader.ts";

Deno.test("ioMultiReader", async function () {
  const r = new MultiReader([new StringReader("abc"), new StringReader("def")]);
  const w = new StringWriter();
  await copy(r, w);
  assertEquals(w.toString(), "abcdef");
});