deno.land / std@0.166.0 / node / _tools / test / parallel / test-fs-write-sync.js

test-fs-write-sync.js
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// deno-fmt-ignore-file// deno-lint-ignore-file
// 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 filename = path.join(tmpdir.path, 'write.txt');
tmpdir.refresh();
{ const parameters = [Buffer.from('bár'), 0, Buffer.byteLength('bár')];
// The first time fs.writeSync is called with all parameters provided. // After that, each pop in the cycle removes the final parameter. So: // - The 2nd time fs.writeSync with a buffer, without the length parameter. // - The 3rd time fs.writeSync with a buffer, without the offset and length // parameters. while (parameters.length > 0) { const fd = fs.openSync(filename, 'w');
let written = fs.writeSync(fd, ''); assert.strictEqual(written, 0);
fs.writeSync(fd, 'foo');
written = fs.writeSync(fd, ...parameters); assert.ok(written > 3); fs.closeSync(fd);
assert.strictEqual(fs.readFileSync(filename, 'utf-8'), 'foobár');
parameters.pop(); }}
std

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Tagged at
a year ago