c4fd37a5f3
This reverts commit 6857dbc0187dc55f408f2182aa1d2f71cb105940. PR-URL: https://github.com/nodejs/node/pull/58070 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
46 lines
1.4 KiB
JavaScript
46 lines
1.4 KiB
JavaScript
// Flags: --expose-internals --no-warnings --allow-natives-syntax
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'use strict';
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const common = require('../common');
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const assert = require('assert');
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const { internalBinding } = require('internal/test/binding');
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function testFastUtf8Write() {
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{
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const buf = Buffer.from('\x80');
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assert.strictEqual(buf[0], 194);
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assert.strictEqual(buf[1], 128);
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}
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{
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const buf = Buffer.alloc(64);
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const newBuf = buf.subarray(0, buf.write('éñüçßÆ'));
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assert.deepStrictEqual(newBuf, Buffer.from([195, 169, 195, 177, 195, 188, 195, 167, 195, 159, 195, 134]));
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}
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{
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const buf = Buffer.alloc(64);
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const newBuf = buf.subarray(0, buf.write('¿'));
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assert.deepStrictEqual(newBuf, Buffer.from([194, 191]));
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}
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{
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const buf = Buffer.from(new ArrayBuffer(34), 0, 16);
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const str = Buffer.from([50, 83, 127, 39, 104, 8, 74, 65, 108, 123, 5, 4, 82, 10, 7, 53]).toString();
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const newBuf = buf.subarray(0, buf.write(str));
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assert.deepStrictEqual(newBuf, Buffer.from([ 50, 83, 127, 39, 104, 8, 74, 65, 108, 123, 5, 4, 82, 10, 7, 53]));
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}
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}
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eval('%PrepareFunctionForOptimization(Buffer.prototype.utf8Write)');
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testFastUtf8Write();
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eval('%OptimizeFunctionOnNextCall(Buffer.prototype.utf8Write)');
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testFastUtf8Write();
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if (common.isDebug) {
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const { getV8FastApiCallCount } = internalBinding('debug');
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assert(getV8FastApiCallCount('buffer.writeString'), 4);
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}
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