mirror of
https://github.com/denoland/std.git
synced 2024-11-22 04:59:05 +00:00
76 lines
2.3 KiB
TypeScript
76 lines
2.3 KiB
TypeScript
// Ported from Go
|
|
// https://github.com/golang/go/blob/go1.12.5/src/encoding/hex/hex.go
|
|
// Copyright 2009 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
|
|
import { assertEquals, assertThrows } from "../testing/asserts.ts";
|
|
|
|
import { decode, encode } from "./hex.ts";
|
|
|
|
const testCases = [
|
|
// encoded(hex) / decoded(Uint8Array)
|
|
["", []],
|
|
["0001020304050607", [0, 1, 2, 3, 4, 5, 6, 7]],
|
|
["08090a0b0c0d0e0f", [8, 9, 10, 11, 12, 13, 14, 15]],
|
|
["f0f1f2f3f4f5f6f7", [0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7]],
|
|
["f8f9fafbfcfdfeff", [0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff]],
|
|
["67", Array.from(new TextEncoder().encode("g"))],
|
|
["e3a1", [0xe3, 0xa1]],
|
|
];
|
|
|
|
const errCases: [string, ErrorConstructor, string][] = [
|
|
// encoded(hex) / error / msg
|
|
["0", RangeError, ""],
|
|
["zd4aa", TypeError, "'z'"],
|
|
["d4aaz", TypeError, "'z'"],
|
|
["30313", RangeError, ""],
|
|
["0g", TypeError, "'g'"],
|
|
["00gg", TypeError, "'g'"],
|
|
["0\x01", TypeError, "'\x01'"],
|
|
["ffeed", RangeError, ""],
|
|
];
|
|
|
|
Deno.test("[encoding.hex] encode", () => {
|
|
{
|
|
const srcStr = "abc";
|
|
const src = new TextEncoder().encode(srcStr);
|
|
const dest = encode(src);
|
|
assertEquals(src, new Uint8Array([97, 98, 99]));
|
|
assertEquals(dest.length, 6);
|
|
}
|
|
|
|
for (const [enc, dec] of testCases) {
|
|
const src = new Uint8Array(dec as number[]);
|
|
const dest = encode(src);
|
|
assertEquals(dest.length, src.length * 2);
|
|
assertEquals(new TextDecoder().decode(dest), enc);
|
|
}
|
|
});
|
|
|
|
Deno.test("[encoding.hex] decode", () => {
|
|
// Case for decoding uppercase hex characters, since
|
|
// Encode always uses lowercase.
|
|
const extraTestcase = [
|
|
["F8F9FAFBFCFDFEFF", [0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff]],
|
|
];
|
|
|
|
const cases = testCases.concat(extraTestcase);
|
|
|
|
for (const [enc, dec] of cases) {
|
|
const src = new TextEncoder().encode(enc as string);
|
|
const dest = decode(src);
|
|
assertEquals(Array.from(dest), Array.from(dec as number[]));
|
|
}
|
|
});
|
|
|
|
Deno.test("[encoding.hex] decode error", () => {
|
|
for (const [input, expectedErr, msg] of errCases) {
|
|
assertThrows(
|
|
() => decode(new TextEncoder().encode(input)),
|
|
expectedErr,
|
|
msg,
|
|
);
|
|
}
|
|
});
|