151 lines
4.5 KiB
JavaScript
151 lines
4.5 KiB
JavaScript
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// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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'use strict';
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const common = require('../common');
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const assert = require('assert');
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const path = require('path');
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const fs = require('fs');
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const expected = Buffer.from('hello');
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const tmpdir = require('../common/tmpdir');
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tmpdir.refresh();
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// fs.write with all parameters provided:
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{
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const filename = path.join(tmpdir.path, 'write1.txt');
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fs.open(filename, 'w', 0o644, common.mustCall((err, fd) => {
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assert.ifError(err);
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const cb = common.mustCall((err, written) => {
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assert.ifError(err);
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assert.strictEqual(written, expected.length);
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fs.closeSync(fd);
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const found = fs.readFileSync(filename, 'utf8');
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assert.strictEqual(found, expected.toString());
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});
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fs.write(fd, expected, 0, expected.length, null, cb);
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}));
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}
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// fs.write with a buffer, without the length parameter:
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{
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const filename = path.join(tmpdir.path, 'write2.txt');
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fs.open(filename, 'w', 0o644, common.mustCall((err, fd) => {
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assert.ifError(err);
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const cb = common.mustCall((err, written) => {
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assert.ifError(err);
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assert.strictEqual(written, 2);
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fs.closeSync(fd);
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const found = fs.readFileSync(filename, 'utf8');
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assert.strictEqual(found, 'lo');
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});
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fs.write(fd, Buffer.from('hello'), 3, cb);
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}));
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}
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// fs.write with a buffer, without the offset and length parameters:
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{
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const filename = path.join(tmpdir.path, 'write3.txt');
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fs.open(filename, 'w', 0o644, common.mustCall(function(err, fd) {
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assert.ifError(err);
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const cb = common.mustCall(function(err, written) {
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assert.ifError(err);
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assert.strictEqual(written, expected.length);
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fs.closeSync(fd);
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const found = fs.readFileSync(filename, 'utf8');
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assert.deepStrictEqual(expected.toString(), found);
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});
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fs.write(fd, expected, cb);
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}));
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}
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// fs.write with the offset passed as undefined followed by the callback:
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{
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const filename = path.join(tmpdir.path, 'write4.txt');
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fs.open(filename, 'w', 0o644, common.mustCall(function(err, fd) {
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assert.ifError(err);
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const cb = common.mustCall(function(err, written) {
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assert.ifError(err);
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assert.strictEqual(written, expected.length);
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fs.closeSync(fd);
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const found = fs.readFileSync(filename, 'utf8');
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assert.deepStrictEqual(expected.toString(), found);
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});
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fs.write(fd, expected, undefined, cb);
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}));
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}
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// fs.write with offset and length passed as undefined followed by the callback:
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{
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const filename = path.join(tmpdir.path, 'write5.txt');
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fs.open(filename, 'w', 0o644, common.mustCall((err, fd) => {
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assert.ifError(err);
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const cb = common.mustCall((err, written) => {
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assert.ifError(err);
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assert.strictEqual(written, expected.length);
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fs.closeSync(fd);
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const found = fs.readFileSync(filename, 'utf8');
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assert.strictEqual(found, expected.toString());
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});
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fs.write(fd, expected, undefined, undefined, cb);
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}));
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}
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// fs.write with a Uint8Array, without the offset and length parameters:
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{
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const filename = path.join(tmpdir.path, 'write6.txt');
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fs.open(filename, 'w', 0o644, common.mustCall((err, fd) => {
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assert.ifError(err);
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const cb = common.mustCall((err, written) => {
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assert.ifError(err);
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assert.strictEqual(written, expected.length);
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fs.closeSync(fd);
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const found = fs.readFileSync(filename, 'utf8');
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assert.strictEqual(found, expected.toString());
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});
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fs.write(fd, Uint8Array.from(expected), cb);
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}));
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}
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