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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 16.13.0// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
'use strict';
require('../common');const assert = require('assert');
const LENGTH = 16;
const ab = new ArrayBuffer(LENGTH);const dv = new DataView(ab);const ui = new Uint8Array(ab);const buf = Buffer.from(ab);

assert.ok(buf instanceof Buffer);assert.strictEqual(buf.parent, buf.buffer);assert.strictEqual(buf.buffer, ab);assert.strictEqual(buf.length, ab.byteLength);

buf.fill(0xC);for (let i = 0; i < LENGTH; i++) {  assert.strictEqual(ui[i], 0xC);  ui[i] = 0xF;  assert.strictEqual(buf[i], 0xF);}
buf.writeUInt32LE(0xF00, 0);buf.writeUInt32BE(0xB47, 4);buf.writeDoubleLE(3.1415, 8);
assert.strictEqual(dv.getUint32(0, true), 0xF00);assert.strictEqual(dv.getUint32(4), 0xB47);assert.strictEqual(dv.getFloat64(8, true), 3.1415);

// Now test protecting users from doing stupid things
// TODO(Soremwar)// There is an inconsistency on feross implementation on how buffers are checked// Enable once it's sorted out// assert.throws(function() {//   function AB() { }//   Object.setPrototypeOf(AB, ArrayBuffer);//   Object.setPrototypeOf(AB.prototype, ArrayBuffer.prototype);// 	Buffer.from(new AB());// }, {//   code: 'ERR_INVALID_ARG_TYPE',//   name: 'TypeError',//   message: 'The first argument must be of type string or an instance of ' +//            'Buffer, ArrayBuffer, or Array or an Array-like Object. Received ' +//            'an instance of AB'// });
// Test the byteOffset and length arguments{  const ab = new Uint8Array(5);  ab[0] = 1;  ab[1] = 2;  ab[2] = 3;  ab[3] = 4;  ab[4] = 5;  const buf = Buffer.from(ab.buffer, 1, 3);  assert.strictEqual(buf.length, 3);  assert.strictEqual(buf[0], 2);  assert.strictEqual(buf[1], 3);  assert.strictEqual(buf[2], 4);  buf[0] = 9;  assert.strictEqual(ab[1], 9);
  assert.throws(() => Buffer.from(ab.buffer, 6), {    code: 'ERR_BUFFER_OUT_OF_BOUNDS',    name: 'RangeError',    message: '"offset" is outside of buffer bounds'  });  assert.throws(() => Buffer.from(ab.buffer, 3, 6), {    code: 'ERR_BUFFER_OUT_OF_BOUNDS',    name: 'RangeError',    message: '"length" is outside of buffer bounds'  });}
// Test the deprecated Buffer() version also{  const ab = new Uint8Array(5);  ab[0] = 1;  ab[1] = 2;  ab[2] = 3;  ab[3] = 4;  ab[4] = 5;  const buf = Buffer(ab.buffer, 1, 3);  assert.strictEqual(buf.length, 3);  assert.strictEqual(buf[0], 2);  assert.strictEqual(buf[1], 3);  assert.strictEqual(buf[2], 4);  buf[0] = 9;  assert.strictEqual(ab[1], 9);
  assert.throws(() => Buffer(ab.buffer, 6), {    code: 'ERR_BUFFER_OUT_OF_BOUNDS',    name: 'RangeError',    message: '"offset" is outside of buffer bounds'  });  assert.throws(() => Buffer(ab.buffer, 3, 6), {    code: 'ERR_BUFFER_OUT_OF_BOUNDS',    name: 'RangeError',    message: '"length" is outside of buffer bounds'  });}
{  // If byteOffset is not numeric, it defaults to 0.  const ab = new ArrayBuffer(10);  const expected = Buffer.from(ab, 0);  assert.deepStrictEqual(Buffer.from(ab, 'fhqwhgads'), expected);  assert.deepStrictEqual(Buffer.from(ab, NaN), expected);  assert.deepStrictEqual(Buffer.from(ab, {}), expected);  assert.deepStrictEqual(Buffer.from(ab, []), expected);
  // If byteOffset can be converted to a number, it will be.  assert.deepStrictEqual(Buffer.from(ab, [1]), Buffer.from(ab, 1));
  // If byteOffset is Infinity, throw.  assert.throws(() => {    Buffer.from(ab, Infinity);  }, {    code: 'ERR_BUFFER_OUT_OF_BOUNDS',    name: 'RangeError',    message: '"offset" is outside of buffer bounds'  });}
{  // If length is not numeric, it defaults to 0.  const ab = new ArrayBuffer(10);  const expected = Buffer.from(ab, 0, 0);  assert.deepStrictEqual(Buffer.from(ab, 0, 'fhqwhgads'), expected);  assert.deepStrictEqual(Buffer.from(ab, 0, NaN), expected);  assert.deepStrictEqual(Buffer.from(ab, 0, {}), expected);  assert.deepStrictEqual(Buffer.from(ab, 0, []), expected);
  // If length can be converted to a number, it will be.  assert.deepStrictEqual(Buffer.from(ab, 0, [1]), Buffer.from(ab, 0, 1));
  // If length is Infinity, throw.  assert.throws(() => {    Buffer.from(ab, 0, Infinity);  }, {    code: 'ERR_BUFFER_OUT_OF_BOUNDS',    name: 'RangeError',    message: '"length" is outside of buffer bounds'  });}
// Test an array like entry with the length set to NaN.assert.deepStrictEqual(Buffer.from({ length: NaN }), Buffer.alloc(0));