mirror of
https://github.com/denoland/deno.git
synced 2024-10-30 09:08:00 -04:00
e36edfdb3f
Original: e1d5c00279
37 lines
1.1 KiB
TypeScript
37 lines
1.1 KiB
TypeScript
const { copy } = Deno;
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import { test } from "../testing/mod.ts";
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import { assertEq } from "../testing/asserts.ts";
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import { MultiReader, StringReader } from "./readers.ts";
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import { StringWriter } from "./writers.ts";
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import { copyN } from "./ioutil.ts";
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import { decode } from "../strings/strings.ts";
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test(async function ioStringReader() {
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const r = new StringReader("abcdef");
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const { nread, eof } = await r.read(new Uint8Array(6));
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assertEq(nread, 6);
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assertEq(eof, true);
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});
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test(async function ioStringReader() {
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const r = new StringReader("abcdef");
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const buf = new Uint8Array(3);
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let res1 = await r.read(buf);
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assertEq(res1.nread, 3);
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assertEq(res1.eof, false);
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assertEq(decode(buf), "abc");
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let res2 = await r.read(buf);
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assertEq(res2.nread, 3);
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assertEq(res2.eof, true);
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assertEq(decode(buf), "def");
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});
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test(async function ioMultiReader() {
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const r = new MultiReader(new StringReader("abc"), new StringReader("def"));
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const w = new StringWriter();
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const n = await copyN(w, r, 4);
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assertEq(n, 4);
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assertEq(w.toString(), "abcd");
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await copy(w, r);
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assertEq(w.toString(), "abcdef");
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});
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