deno.land / std@0.166.0 / node / _tools / test / parallel / test-file-write-stream3.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';const common = 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_pos.txt');
const cb_expected = 'write open close write open close write open close ';let cb_occurred = '';
const fileDataInitial = 'abcdefghijklmnopqrstuvwxyz';
const fileDataExpected_1 = 'abcdefghijklmnopqrstuvwxyz';const fileDataExpected_2 = 'abcdefghij123456qrstuvwxyz';const fileDataExpected_3 = 'abcdefghij\u2026\u2026qrstuvwxyz';
process.on('exit', function() { 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}"`); }});
tmpdir.refresh();
function run_test_1() { const options = {}; const file = fs.createWriteStream(filepath, options); console.log(' (debug: start ', file.start); console.log(' (debug: pos ', file.pos);
file.on('open', function(fd) { cb_occurred += 'open '; });
file.on('close', function() { cb_occurred += 'close '; console.log(' (debug: bytesWritten ', file.bytesWritten); console.log(' (debug: start ', file.start); console.log(' (debug: pos ', file.pos); assert.strictEqual(file.bytesWritten, buffer.length); const fileData = fs.readFileSync(filepath, 'utf8'); console.log(' (debug: file data ', fileData); console.log(' (debug: expected ', fileDataExpected_1); assert.strictEqual(fileData, fileDataExpected_1);
run_test_2(); });
file.on('error', function(err) { cb_occurred += 'error '; console.log(' (debug: err event ', err); throw err; });
const buffer = Buffer.from(fileDataInitial); file.write(buffer); cb_occurred += 'write ';
file.end();}
function run_test_2() {
const buffer = Buffer.from('123456');
const options = { start: 10, flags: 'r+' }; const file = fs.createWriteStream(filepath, options); console.log(' (debug: start ', file.start); console.log(' (debug: pos ', file.pos);
file.on('open', function(fd) { cb_occurred += 'open '; });
file.on('close', function() { cb_occurred += 'close '; console.log(' (debug: bytesWritten ', file.bytesWritten); console.log(' (debug: start ', file.start); console.log(' (debug: pos ', file.pos); assert.strictEqual(file.bytesWritten, buffer.length); const fileData = fs.readFileSync(filepath, 'utf8'); console.log(' (debug: file data ', fileData); console.log(' (debug: expected ', fileDataExpected_2); assert.strictEqual(fileData, fileDataExpected_2);
run_test_3(); });
file.on('error', function(err) { cb_occurred += 'error '; console.log(' (debug: err event ', err); throw err; });
file.write(buffer); cb_occurred += 'write ';
file.end();}
function run_test_3() {
const data = '\u2026\u2026'; // 3 bytes * 2 = 6 bytes in UTF-8
const options = { start: 10, flags: 'r+' }; const file = fs.createWriteStream(filepath, options); console.log(' (debug: start ', file.start); console.log(' (debug: pos ', file.pos);
file.on('open', function(fd) { cb_occurred += 'open '; });
file.on('close', function() { cb_occurred += 'close '; console.log(' (debug: bytesWritten ', file.bytesWritten); console.log(' (debug: start ', file.start); console.log(' (debug: pos ', file.pos); assert.strictEqual(file.bytesWritten, data.length * 3); const fileData = fs.readFileSync(filepath, 'utf8'); console.log(' (debug: file data ', fileData); console.log(' (debug: expected ', fileDataExpected_3); assert.strictEqual(fileData, fileDataExpected_3);
run_test_4(); run_test_5(); });
file.on('error', function(err) { cb_occurred += 'error '; console.log(' (debug: err event ', err); throw err; });
file.write(data, 'utf8'); cb_occurred += 'write ';
file.end();}
const run_test_4 = common.mustCall(function() { // Error: start must be >= zero const fn = () => { fs.createWriteStream(filepath, { start: -5, flags: 'r+' }); }; // Verify the range of values using a common integer verifier. // Limit Number.MAX_SAFE_INTEGER const err = { code: 'ERR_OUT_OF_RANGE', message: 'The value of "start" is out of range. ' + `It must be >= 0 && <= ${Number.MAX_SAFE_INTEGER}. Received -5`, name: 'RangeError' }; assert.throws(fn, err);});
const run_test_5 = common.mustCall(function() { // Error: start must be <= 2 ** 53 - 1 const fn = () => { fs.createWriteStream(filepath, { start: 2 ** 53, flags: 'r+' }); }; // Verify the range of values using a common integer verifier. // Limit Number.MAX_SAFE_INTEGER const err = { code: 'ERR_OUT_OF_RANGE', message: 'The value of "start" is out of range. It must be ' + `>= 0 && <= ${Number.MAX_SAFE_INTEGER}. ` + 'Received 9_007_199_254_740_992', name: 'RangeError' }; assert.throws(fn, err);});
run_test_1();
std
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