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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');const fixtures = require('../common/fixtures');const assert = require('assert');const fs = require('fs');const filepath = fixtures.path('x.txt');const fd = fs.openSync(filepath, 'r');
const expected = Buffer.from('xyz\n');
function test(bufferAsync, bufferSync, expected) {  fs.read(fd,          bufferAsync,          0,          expected.length,          0,          common.mustSucceed((bytesRead) => {            assert.strictEqual(bytesRead, expected.length);            assert.deepStrictEqual(bufferAsync, expected);          }));
  const r = fs.readSync(fd, bufferSync, 0, expected.length, 0);  assert.deepStrictEqual(bufferSync, expected);  assert.strictEqual(r, expected.length);}
test(Buffer.allocUnsafe(expected.length),     Buffer.allocUnsafe(expected.length),     expected);
test(new Uint8Array(expected.length),     new Uint8Array(expected.length),     Uint8Array.from(expected));
{  // Reading beyond file length (3 in this case) should return no data.  // This is a test for a bug where reads > uint32 would return data  // from the current position in the file.  const pos = 0xffffffff + 1; // max-uint32 + 1  const nRead = fs.readSync(fd, Buffer.alloc(1), 0, 1, pos);  assert.strictEqual(nRead, 0);
  fs.read(fd, Buffer.alloc(1), 0, 1, pos, common.mustSucceed((nRead) => {    assert.strictEqual(nRead, 0);  }));}
assert.throws(() => new fs.Dir(), {  code: 'ERR_MISSING_ARGS',});
assert.throws(  () => fs.read(fd, Buffer.alloc(1), 0, 1, 0),  {    code: 'ERR_INVALID_ARG_TYPE',  });
assert.throws(  () => fs.read(fd, { buffer: null }, common.mustNotCall()),  /TypeError: Cannot read properties of null \(reading 'byteLength'\)/,  'throws when options.buffer is null');
assert.throws(  () => fs.readSync(fd, { buffer: null }),  {    name: 'TypeError',    message: 'The "buffer" argument must be an instance of Buffer, ' +    'TypedArray, or DataView. Received an instance of Object',  },  'throws when options.buffer is null');
assert.throws(  () => fs.read(null, Buffer.alloc(1), 0, 1, 0),  {    message: 'The "fd" argument must be of type number. Received null',    code: 'ERR_INVALID_ARG_TYPE',  });