deno.land / std@0.166.0 / node / _tools / test / parallel / test-file-write-stream2.js
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// Copyright Joyent and Node contributors. All rights reserved. MIT license.// Taken from Node 18.12.0// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
// Copyright Joyent, Inc. and other Node contributors.//// Permission is hereby granted, free of charge, to any person obtaining a// copy of this software and associated documentation files (the// "Software"), to deal in the Software without restriction, including// without limitation the rights to use, copy, modify, merge, publish,// distribute, sublicense, and/or sell copies of the Software, and to permit// persons to whom the Software is furnished to do so, subject to the// following conditions://// The above copyright notice and this permission notice shall be included// in all copies or substantial portions of the Software.//// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';require('../common');const assert = require('assert');
const path = require('path');const fs = require('fs');
const tmpdir = require('../common/tmpdir');
const filepath = path.join(tmpdir.path, 'write.txt');
const EXPECTED = '012345678910';
const cb_expected = 'write open drain write drain close ';let cb_occurred = '';
let countDrains = 0;
process.on('exit', function() { removeTestFile(); if (cb_occurred !== cb_expected) { console.log(' Test callback events missing or out of order:'); console.log(` expected: ${cb_expected}`); console.log(` occurred: ${cb_occurred}`); assert.strictEqual( cb_occurred, cb_expected, `events missing or out of order: "${cb_occurred}" !== "${cb_expected}"`); } else { console.log('ok'); }});
function removeTestFile() { try { fs.unlinkSync(filepath); } catch { // Continue regardless of error. }}
tmpdir.refresh();
// Drain at 0, return false at 10.const file = fs.createWriteStream(filepath, { highWaterMark: 11});
file.on('open', function(fd) { console.error('open'); cb_occurred += 'open '; assert.strictEqual(typeof fd, 'number');});
file.on('drain', function() { console.error('drain'); cb_occurred += 'drain '; ++countDrains; if (countDrains === 1) { console.error('drain=1, write again'); assert.strictEqual(fs.readFileSync(filepath, 'utf8'), EXPECTED); console.error(`ondrain write ret= ${file.write(EXPECTED)}`); cb_occurred += 'write '; } else if (countDrains === 2) { console.error('second drain, end'); assert.strictEqual(fs.readFileSync(filepath, 'utf8'), EXPECTED + EXPECTED); file.end(); }});
file.on('close', function() { cb_occurred += 'close '; assert.strictEqual(file.bytesWritten, EXPECTED.length * 2); file.write('should not work anymore', (err) => { assert.ok(err.message.includes('write after end')); });});
for (let i = 0; i < 11; i++) { const ret = file.write(String(i)); console.error(`${i} ${ret}`);
// Return false when i hits 10 assert.strictEqual(ret, i !== 10);}cb_occurred += 'write ';
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