mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
48 lines
1.6 KiB
48 lines
1.6 KiB
'use strict';
|
|
require('../common');
|
|
const assert = require('assert');
|
|
|
|
// Test hex strings and bad hex strings
|
|
{
|
|
const buf = Buffer.alloc(4);
|
|
assert.strictEqual(buf.length, 4);
|
|
assert.deepStrictEqual(buf, new Buffer([0, 0, 0, 0]));
|
|
assert.strictEqual(buf.write('abcdxx', 0, 'hex'), 2);
|
|
assert.deepStrictEqual(buf, new Buffer([0xab, 0xcd, 0x00, 0x00]));
|
|
assert.strictEqual(buf.toString('hex'), 'abcd0000');
|
|
assert.strictEqual(buf.write('abcdef01', 0, 'hex'), 4);
|
|
assert.deepStrictEqual(buf, new Buffer([0xab, 0xcd, 0xef, 0x01]));
|
|
assert.strictEqual(buf.toString('hex'), 'abcdef01');
|
|
|
|
const copy = Buffer.from(buf.toString('hex'), 'hex');
|
|
assert.strictEqual(buf.toString('hex'), copy.toString('hex'));
|
|
}
|
|
|
|
{
|
|
const buf = Buffer.alloc(5);
|
|
assert.strictEqual(buf.write('abcdxx', 1, 'hex'), 2);
|
|
assert.strictEqual(buf.toString('hex'), '00abcd0000');
|
|
}
|
|
|
|
{
|
|
const buf = Buffer.alloc(4);
|
|
assert.deepStrictEqual(buf, new Buffer([0, 0, 0, 0]));
|
|
assert.strictEqual(buf.write('xxabcd', 0, 'hex'), 0);
|
|
assert.deepStrictEqual(buf, new Buffer([0, 0, 0, 0]));
|
|
assert.strictEqual(buf.write('xxab', 1, 'hex'), 0);
|
|
assert.deepStrictEqual(buf, new Buffer([0, 0, 0, 0]));
|
|
assert.strictEqual(buf.write('cdxxab', 0, 'hex'), 1);
|
|
assert.deepStrictEqual(buf, new Buffer([0xcd, 0, 0, 0]));
|
|
}
|
|
|
|
{
|
|
const buf = Buffer.alloc(256);
|
|
for (let i = 0; i < 256; i++)
|
|
buf[i] = i;
|
|
|
|
const hex = buf.toString('hex');
|
|
assert.deepStrictEqual(Buffer.from(hex, 'hex'), buf);
|
|
|
|
const badHex = `${hex.slice(0, 256)}xx${hex.slice(256, 510)}`;
|
|
assert.deepStrictEqual(Buffer.from(badHex, 'hex'), buf.slice(0, 128));
|
|
}
|
|
|