denoland-deno/cli/tests/node_compat/test/parallel/test-zlib-deflate-raw-inherits.js

// 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 { DeflateRaw } = require('zlib');
const { Readable } = require('stream');

// Validates that zlib.DeflateRaw can be inherited
// with Object.setPrototypeOf

function NotInitialized(options) {
  DeflateRaw.call(this, options);
  this.prop = true;
}
Object.setPrototypeOf(NotInitialized.prototype, DeflateRaw.prototype);
Object.setPrototypeOf(NotInitialized, DeflateRaw);

const dest = new NotInitialized();

const read = new Readable({
  read() {
    this.push(Buffer.from('a test string'));
    this.push(null);
  }
});

read.pipe(dest);
dest.resume();