47 lines
1.6 KiB
JavaScript
47 lines
1.6 KiB
JavaScript
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'use strict';
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var Buffer = require('../../').Buffer;
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var assert = require('assert');
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var Buffer = require('../../').Buffer;
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// Test hex strings and bad hex strings
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{
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var buf1 = Buffer.alloc(4);
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assert.strictEqual(buf1.length, 4);
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assert.deepStrictEqual(buf1, new Buffer([0, 0, 0, 0]));
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assert.strictEqual(buf1.write('abcdxx', 0, 'hex'), 2);
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assert.deepStrictEqual(buf1, new Buffer([0xab, 0xcd, 0x00, 0x00]));
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assert.strictEqual(buf1.toString('hex'), 'abcd0000');
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assert.strictEqual(buf1.write('abcdef01', 0, 'hex'), 4);
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assert.deepStrictEqual(buf1, new Buffer([0xab, 0xcd, 0xef, 0x01]));
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assert.strictEqual(buf1.toString('hex'), 'abcdef01');
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var buf2 = Buffer.from(buf1.toString('hex'), 'hex');
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assert.strictEqual(buf1.toString('hex'), buf2.toString('hex'));
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var buf3 = Buffer.alloc(5);
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assert.strictEqual(buf3.write('abcdxx', 1, 'hex'), 2);
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assert.strictEqual(buf3.toString('hex'), '00abcd0000');
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var buf4 = Buffer.alloc(4);
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assert.deepStrictEqual(buf4, new Buffer([0, 0, 0, 0]));
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assert.strictEqual(buf4.write('xxabcd', 0, 'hex'), 0);
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assert.deepStrictEqual(buf4, new Buffer([0, 0, 0, 0]));
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assert.strictEqual(buf4.write('xxab', 1, 'hex'), 0);
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assert.deepStrictEqual(buf4, new Buffer([0, 0, 0, 0]));
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assert.strictEqual(buf4.write('cdxxab', 0, 'hex'), 1);
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assert.deepStrictEqual(buf4, new Buffer([0xcd, 0, 0, 0]));
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var buf5 = Buffer.alloc(256);
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for (var i = 0; i < 256; i++)
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buf5[i] = i;
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var hex = buf5.toString('hex');
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assert.deepStrictEqual(Buffer.from(hex, 'hex'), buf5);
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var badHex = hex.slice(0, 256) + 'xx' + hex.slice(256, 510);
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assert.deepStrictEqual(Buffer.from(badHex, 'hex'), buf5.slice(0, 128));
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}
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