/
util_test.ts
52 lines (45 loc) · 1.37 KB
/
util_test.ts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { assert, assertEquals } from "../testing/asserts.ts";
import * as path from "../path/mod.ts";
import { copyBytes, tempFile } from "./util.ts";
Deno.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));
});
Deno.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 Deno.remove(f.filepath);
},
});