node/test/parallel/test-fastutf8stream-minlength.js
James M Snell 5335c101a9 fs: port SonicBoom module to fs module as Utf8Stream
As a first step to porting portions of the pino structured
logger into the runtime, this commit ports the SonicBoom
module to the fs module as Utf8Stream.

This is a faithful port of the SonicBoom module with some
modern updates, such as converting to a Class and using
Symbol.dispose. The bulk of the implementation is unchanged
from the original.

PR-URL: https://github.com/nodejs/node/pull/58897
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Vinícius Lourenço Claro Cardoso <contact@viniciusl.com.br>
2025-07-28 20:27:07 -07:00

50 lines
1.0 KiB
JavaScript

'use strict';
const common = require('../common');
const tmpdir = require('../common/tmpdir');
const {
ok,
throws,
} = require('node:assert');
const {
closeSync,
openSync,
} = require('node:fs');
const { Utf8Stream } = require('node:fs');
const { join } = require('node:path');
tmpdir.refresh();
let fileCounter = 0;
function getTempFile() {
return join(tmpdir.path, `fastutf8stream-${process.pid}-${Date.now()}-${fileCounter++}.log`);
}
const MAX_WRITE = 16 * 1024;
{
const dest = getTempFile();
const stream = new Utf8Stream({ dest, sync: false, minLength: 9999 });
ok(stream.write(Buffer.alloc(1500).fill('x').toString()));
ok(stream.write(Buffer.alloc(1500).fill('x').toString()));
ok(!stream.write(Buffer.alloc(MAX_WRITE).fill('x').toString()));
stream.on('drain', common.mustCall(() => stream.end()));
}
{
const dest = getTempFile();
const fd = openSync(dest, 'w');
throws(() => {
new Utf8Stream({
fd,
minLength: MAX_WRITE
});
}, Error);
closeSync(fd);
}