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