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denoland-deno/io/writers_test.ts
2019-02-10 18:49:48 -05:00

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TypeScript

import { assert, test } from "../testing/mod.ts";
import { StringWriter } from "./writers.ts";
import { StringReader } from "./readers.ts";
import { copyN } from "./ioutil.ts";
import { copy } from "deno";
test(async function ioStringWriter() {
const w = new StringWriter("base");
const r = new StringReader("0123456789");
const n = await copyN(w, r, 4);
assert.equal(w.toString(), "base0123");
await copy(w, r);
assert.equal(w.toString(), "base0123456789");
});