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denoland-deno/cli/tests/node_compat/test/parallel/test-buffer-iterator.js
2023-06-02 15:05:32 +09:00

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JavaScript

// deno-fmt-ignore-file
// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.
// Taken from Node 18.12.1
// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
'use strict';
require('../common');
const assert = require('assert');
const buffer = Buffer.from([1, 2, 3, 4, 5]);
let arr;
let b;
// Buffers should be iterable
arr = [];
for (b of buffer)
arr.push(b);
assert.deepStrictEqual(arr, [1, 2, 3, 4, 5]);
// Buffer iterators should be iterable
arr = [];
for (b of buffer[Symbol.iterator]())
arr.push(b);
assert.deepStrictEqual(arr, [1, 2, 3, 4, 5]);
// buffer#values() should return iterator for values
arr = [];
for (b of buffer.values())
arr.push(b);
assert.deepStrictEqual(arr, [1, 2, 3, 4, 5]);
// buffer#keys() should return iterator for keys
arr = [];
for (b of buffer.keys())
arr.push(b);
assert.deepStrictEqual(arr, [0, 1, 2, 3, 4]);
// buffer#entries() should return iterator for entries
arr = [];
for (b of buffer.entries())
arr.push(b);
assert.deepStrictEqual(arr, [
[0, 1],
[1, 2],
[2, 3],
[3, 4],
[4, 5],
]);