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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { assertEquals } from "../testing/asserts.ts";
import { StringWriter } from "./writers.ts";
import { StringReader } from "./readers.ts";
import { copyN } from "./ioutil.ts";
Deno.test("ioStringWriter", async function (): Promise<void> {
const w = new StringWriter("base");
const r = new StringReader("0123456789");
await copyN(r, w, 4);
assertEquals(w.toString(), "base0123");
await Deno.copy(r, w);
assertEquals(w.toString(), "base0123456789");
});
Deno.test("ioStringWriterSync", function (): void {
const encoder = new TextEncoder();
const w = new StringWriter("");
w.writeSync(encoder.encode("deno"));
assertEquals(w.toString(), "deno");
w.writeSync(encoder.encode("\nland"));
assertEquals(w.toString(), "deno\nland");
});
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