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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
'use strict';require('../common');const assert = require('assert');const { Readable, Writable, Duplex, Transform } = require('stream');
const readable = new Readable({ read() {} });const writable = new Writable({ write() {} });const duplex = new Duplex({ read() {}, write() {} });const transform = new Transform({ transform() {} });
assert.ok(readable instanceof Readable);assert.ok(!(writable instanceof Readable));assert.ok(duplex instanceof Readable);assert.ok(transform instanceof Readable);
assert.ok(!(readable instanceof Writable));assert.ok(writable instanceof Writable);assert.ok(duplex instanceof Writable);assert.ok(transform instanceof Writable);
assert.ok(!(readable instanceof Duplex));assert.ok(!(writable instanceof Duplex));assert.ok(duplex instanceof Duplex);assert.ok(transform instanceof Duplex);
assert.ok(!(readable instanceof Transform));assert.ok(!(writable instanceof Transform));assert.ok(!(duplex instanceof Transform));assert.ok(transform instanceof Transform);
assert.ok(!(null instanceof Writable));assert.ok(!(undefined instanceof Writable));
// Simple inheritance check for `Writable` works fine in a subclass constructor.function CustomWritable() {  assert.ok(    this instanceof CustomWritable,    `${this} does not inherit from CustomWritable`  );  assert.ok(    this instanceof Writable,    `${this} does not inherit from Writable`  );}
Object.setPrototypeOf(CustomWritable, Writable);Object.setPrototypeOf(CustomWritable.prototype, Writable.prototype);
new CustomWritable();
assert.throws(  CustomWritable,  {    code: 'ERR_ASSERTION',    constructor: assert.AssertionError,    message: 'undefined does not inherit from CustomWritable'  });
class OtherCustomWritable extends Writable {}
assert(!(new OtherCustomWritable() instanceof CustomWritable));assert(!(new CustomWritable() instanceof OtherCustomWritable));