mirror of
https://github.com/denoland/deno.git
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53 lines
1.4 KiB
TypeScript
53 lines
1.4 KiB
TypeScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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const { remove, test } = Deno;
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import { assert, assertEquals } from "../testing/asserts.ts";
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import * as path from "../path/mod.ts";
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import { copyBytes, tempFile } from "./util.ts";
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test("[io/tuil] copyBytes", function (): void {
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const dst = new Uint8Array(4);
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dst.fill(0);
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let src = Uint8Array.of(1, 2);
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let len = copyBytes(src, dst, 0);
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assert(len === 2);
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assertEquals(dst, Uint8Array.of(1, 2, 0, 0));
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dst.fill(0);
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src = Uint8Array.of(1, 2);
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len = copyBytes(src, dst, 1);
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assert(len === 2);
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assertEquals(dst, Uint8Array.of(0, 1, 2, 0));
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dst.fill(0);
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src = Uint8Array.of(1, 2, 3, 4, 5);
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len = copyBytes(src, dst);
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assert(len === 4);
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assertEquals(dst, Uint8Array.of(1, 2, 3, 4));
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dst.fill(0);
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src = Uint8Array.of(1, 2);
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len = copyBytes(src, dst, 100);
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assert(len === 0);
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assertEquals(dst, Uint8Array.of(0, 0, 0, 0));
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dst.fill(0);
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src = Uint8Array.of(3, 4);
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len = copyBytes(src, dst, -2);
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assert(len === 2);
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assertEquals(dst, Uint8Array.of(3, 4, 0, 0));
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});
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test({
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name: "[io/util] tempfile",
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fn: async function (): Promise<void> {
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const f = await tempFile(".", {
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prefix: "prefix-",
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postfix: "-postfix",
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});
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const base = path.basename(f.filepath);
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assert(!!base.match(/^prefix-.+?-postfix$/));
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f.file.close();
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await remove(f.filepath);
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},
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});
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