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

test-fs-write-file-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';const common = require('../common');
if (!common.isMainThread) common.skip('Setting process.umask is not supported in Workers');
const assert = require('assert');const path = require('path');const fs = require('fs');
// On Windows chmod is only able to manipulate read-only bit. Test if creating// the file in read-only mode works.const mode = common.isWindows ? 0o444 : 0o755;
// Reset the umask for testingprocess.umask(0o000);
const tmpdir = require('../common/tmpdir');tmpdir.refresh();
// Test writeFileSync{ const file = path.join(tmpdir.path, 'testWriteFileSync.txt');
fs.writeFileSync(file, '123', { mode }); const content = fs.readFileSync(file, { encoding: 'utf8' }); assert.strictEqual(content, '123'); assert.strictEqual(fs.statSync(file).mode & 0o777, mode);}
// Test appendFileSync{ const file = path.join(tmpdir.path, 'testAppendFileSync.txt');
fs.appendFileSync(file, 'abc', { mode }); const content = fs.readFileSync(file, { encoding: 'utf8' }); assert.strictEqual(content, 'abc'); assert.strictEqual(fs.statSync(file).mode & mode, mode);}
// Test writeFileSync with file descriptor{ // Need to hijack fs.open/close to make sure that things // get closed once they're opened. const _openSync = fs.openSync; const _closeSync = fs.closeSync; let openCount = 0;
fs.openSync = (...args) => { openCount++; return _openSync(...args); };
fs.closeSync = (...args) => { openCount--; return _closeSync(...args); };
const file = path.join(tmpdir.path, 'testWriteFileSyncFd.txt'); const fd = fs.openSync(file, 'w+', mode);
fs.writeFileSync(fd, '123'); fs.closeSync(fd); const content = fs.readFileSync(file, { encoding: 'utf8' }); assert.strictEqual(content, '123'); assert.strictEqual(fs.statSync(file).mode & 0o777, mode);
// Verify that all opened files were closed. assert.strictEqual(openCount, 0); fs.openSync = _openSync; fs.closeSync = _closeSync;}
// Test writeFileSync with flags{ const file = path.join(tmpdir.path, 'testWriteFileSyncFlags.txt');
fs.writeFileSync(file, 'hello ', { encoding: 'utf8', flag: 'a' }); fs.writeFileSync(file, 'world!', { encoding: 'utf8', flag: 'a' }); const content = fs.readFileSync(file, { encoding: 'utf8' }); assert.strictEqual(content, 'hello world!');}
// Test writeFileSync with an object with an own toString function{ // Runtime deprecated by DEP0162 common.expectWarning('DeprecationWarning', 'Implicit coercion of objects with own toString property is deprecated.', 'DEP0162'); const file = path.join(tmpdir.path, 'testWriteFileSyncStringify.txt'); const data = { toString() { return 'hello world!'; } };
fs.writeFileSync(file, data, { encoding: 'utf8', flag: 'a' }); const content = fs.readFileSync(file, { encoding: 'utf8' }); assert.strictEqual(content, String(data));}
std

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Tagged at
a year ago