2c4ebe0426This makes sure that all async functions finish as expected. PR-URL: https://github.com/nodejs/node/pull/34363 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Richard Lau <riclau@uk.ibm.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
50 lines
2 KiB
JavaScript
50 lines
2 KiB
JavaScript
'use strict';
|
|
const common = require('../common');
|
|
const assert = require('assert');
|
|
const path = require('path');
|
|
const fs = require('fs').promises;
|
|
const tmpdir = require('../common/tmpdir');
|
|
const expected = 'ümlaut. Лорем 運務ホソモ指及 आपको करने विकास 紙読決多密所 أضف';
|
|
let cnt = 0;
|
|
|
|
function getFileName() {
|
|
return path.join(tmpdir.path, `writev_promises_${++cnt}.txt`);
|
|
}
|
|
|
|
tmpdir.refresh();
|
|
|
|
(async () => {
|
|
{
|
|
const filename = getFileName();
|
|
const handle = await fs.open(filename, 'w');
|
|
const buffer = Buffer.from(expected);
|
|
const bufferArr = [buffer, buffer];
|
|
const expectedLength = bufferArr.length * buffer.byteLength;
|
|
let { bytesWritten, buffers } = await handle.writev([Buffer.from('')],
|
|
null);
|
|
assert.deepStrictEqual(bytesWritten, 0);
|
|
assert.deepStrictEqual(buffers, [Buffer.from('')]);
|
|
({ bytesWritten, buffers } = await handle.writev(bufferArr, null));
|
|
assert.deepStrictEqual(bytesWritten, expectedLength);
|
|
assert.deepStrictEqual(buffers, bufferArr);
|
|
assert(Buffer.concat(bufferArr).equals(await fs.readFile(filename)));
|
|
handle.close();
|
|
}
|
|
|
|
// fs.promises.writev() with an array of buffers without position.
|
|
{
|
|
const filename = getFileName();
|
|
const handle = await fs.open(filename, 'w');
|
|
const buffer = Buffer.from(expected);
|
|
const bufferArr = [buffer, buffer, buffer];
|
|
const expectedLength = bufferArr.length * buffer.byteLength;
|
|
let { bytesWritten, buffers } = await handle.writev([Buffer.from('')]);
|
|
assert.deepStrictEqual(bytesWritten, 0);
|
|
assert.deepStrictEqual(buffers, [Buffer.from('')]);
|
|
({ bytesWritten, buffers } = await handle.writev(bufferArr));
|
|
assert.deepStrictEqual(bytesWritten, expectedLength);
|
|
assert.deepStrictEqual(buffers, bufferArr);
|
|
assert(Buffer.concat(bufferArr).equals(await fs.readFile(filename)));
|
|
handle.close();
|
|
}
|
|
})().then(common.mustCall());
|