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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import { assertEquals } from "../testing/asserts.ts";import { StringReader } from "./string_reader.ts";
Deno.test("ioStringReader", async function () {  const r = new StringReader("abcdef");  const res0 = await r.read(new Uint8Array(6));  assertEquals(res0, 6);  const res1 = await r.read(new Uint8Array(6));  assertEquals(res1, null);});
Deno.test("ioStringReader", async function () {  const decoder = new TextDecoder();  const r = new StringReader("abcdef");  const buf = new Uint8Array(3);  const res1 = await r.read(buf);  assertEquals(res1, 3);  assertEquals(decoder.decode(buf), "abc");  const res2 = await r.read(buf);  assertEquals(res2, 3);  assertEquals(decoder.decode(buf), "def");  const res3 = await r.read(buf);  assertEquals(res3, null);  assertEquals(decoder.decode(buf), "def");});
Deno.test("testStringReaderEof", async function () {  const r = new StringReader("abc");  assertEquals(await r.read(new Uint8Array()), 0);  assertEquals(await r.read(new Uint8Array(4)), 3);  assertEquals(await r.read(new Uint8Array(1)), null);});