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denoland-deno/tests/node_compat/test/parallel/test-buffer-parent-property.js
Asher Gomez 29085895c9
chore: move tools/node_compat to tests/node_compat/runner (#23025)
The `tools/node_compat/node` submodule has been moved to
`tests/node_compat/runner/suite` and the remaining files within
`tools/node_compat` to `tests/node_compat/runner`.

Most of the changes are of the header within `tests/node_compat/test`
files. The `setup` and `test` tasks within `tests/node_comapt` execute
successfully.

Towards #22525
CC @mmastrac
2024-04-03 09:24:55 +11:00

28 lines
1.1 KiB
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 `tests/node_compat/runner/setup.ts`. Do not modify this file manually.
'use strict';
// Fix for https://github.com/nodejs/node/issues/8266
//
// Zero length Buffer objects should expose the `buffer` property of the
// TypedArrays, via the `parent` property.
require('../common');
const assert = require('assert');
// If the length of the buffer object is zero
assert((new Buffer(0)).parent instanceof ArrayBuffer);
// If the length of the buffer object is equal to the underlying ArrayBuffer
assert((new Buffer(Buffer.poolSize)).parent instanceof ArrayBuffer);
// Same as the previous test, but with user created buffer
const arrayBuffer = new ArrayBuffer(0);
assert.strictEqual(new Buffer(arrayBuffer).parent, arrayBuffer);
assert.strictEqual(new Buffer(arrayBuffer).buffer, arrayBuffer);
assert.strictEqual(Buffer.from(arrayBuffer).parent, arrayBuffer);
assert.strictEqual(Buffer.from(arrayBuffer).buffer, arrayBuffer);