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For tests / benchmarks that are creating Buffer instances for any reason other than to test Buffer constructor, use the new Buffer.alloc/Buffer.from API instead of the deprecated API. PR-URL: https://github.com/nodejs/node/pull/18980 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de>
49 lines
1.6 KiB
JavaScript
49 lines
1.6 KiB
JavaScript
'use strict';
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require('../common');
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const assert = require('assert');
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// Test hex strings and bad hex strings
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{
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const buf = Buffer.alloc(4);
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assert.strictEqual(buf.length, 4);
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assert.deepStrictEqual(buf, Buffer.from([0, 0, 0, 0]));
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assert.strictEqual(buf.write('abcdxx', 0, 'hex'), 2);
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assert.deepStrictEqual(buf, Buffer.from([0xab, 0xcd, 0x00, 0x00]));
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assert.strictEqual(buf.toString('hex'), 'abcd0000');
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assert.strictEqual(buf.write('abcdef01', 0, 'hex'), 4);
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assert.deepStrictEqual(buf, Buffer.from([0xab, 0xcd, 0xef, 0x01]));
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assert.strictEqual(buf.toString('hex'), 'abcdef01');
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const copy = Buffer.from(buf.toString('hex'), 'hex');
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assert.strictEqual(buf.toString('hex'), copy.toString('hex'));
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}
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{
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const buf = Buffer.alloc(5);
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assert.strictEqual(buf.write('abcdxx', 1, 'hex'), 2);
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assert.strictEqual(buf.toString('hex'), '00abcd0000');
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}
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{
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const buf = Buffer.alloc(4);
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assert.deepStrictEqual(buf, Buffer.from([0, 0, 0, 0]));
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assert.strictEqual(buf.write('xxabcd', 0, 'hex'), 0);
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assert.deepStrictEqual(buf, Buffer.from([0, 0, 0, 0]));
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assert.strictEqual(buf.write('xxab', 1, 'hex'), 0);
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assert.deepStrictEqual(buf, Buffer.from([0, 0, 0, 0]));
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assert.strictEqual(buf.write('cdxxab', 0, 'hex'), 1);
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assert.deepStrictEqual(buf, Buffer.from([0xcd, 0, 0, 0]));
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}
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{
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const buf = Buffer.alloc(256);
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for (let i = 0; i < 256; i++)
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buf[i] = i;
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const hex = buf.toString('hex');
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assert.deepStrictEqual(Buffer.from(hex, 'hex'), buf);
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const badHex = `${hex.slice(0, 256)}xx${hex.slice(256, 510)}`;
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assert.deepStrictEqual(Buffer.from(badHex, 'hex'), buf.slice(0, 128));
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}
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