node/test/parallel/test-buffer-isascii.js
Yagiz Nizipli babe6d7c84
buffer: add isAscii method
PR-URL: https://github.com/nodejs/node/pull/46046
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
2023-01-20 03:24:40 +00:00

43 lines
851 B
JavaScript

'use strict';
require('../common');
const assert = require('assert');
const { isAscii, Buffer } = require('buffer');
const { TextEncoder } = require('util');
const encoder = new TextEncoder();
assert.strictEqual(isAscii(encoder.encode('hello')), true);
assert.strictEqual(isAscii(encoder.encode('ğ')), false);
assert.strictEqual(isAscii(Buffer.from([])), true);
[
undefined,
'', 'hello',
false, true,
0, 1,
0n, 1n,
Symbol(),
() => {},
{}, [], null,
].forEach((input) => {
assert.throws(
() => { isAscii(input); },
{
code: 'ERR_INVALID_ARG_TYPE',
},
);
});
{
// Test with detached array buffers
const arrayBuffer = new ArrayBuffer(1024);
structuredClone(arrayBuffer, { transfer: [arrayBuffer] });
assert.throws(
() => { isAscii(arrayBuffer); },
{
code: 'ERR_INVALID_STATE'
}
);
}