test: remove `util.inherits()` usage

PR-URL: https://github.com/nodejs/node/pull/25245
Refs: https://github.com/nodejs/node/pull/24755
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Anna Henningsen <anna@addaleax.net>

1 files changed, 4 insertions, 3 deletions

diff --git a/test/parallel/test-stream-pipe-event.js b/test/parallel/test-stream-pipe-event.js
index 9054a5a166..d7772df6a1 100644
--- a/test/parallel/test-stream-pipe-event.js
+++ b/test/parallel/test-stream-pipe-event.js
@@ -23,19 +23,20 @@
 require('../common');
 const stream = require('stream');
 const assert = require('assert');
-const util = require('util');
 
 function Writable() {
   this.writable = true;
   stream.Stream.call(this);
 }
-util.inherits(Writable, stream.Stream);
+Object.setPrototypeOf(Writable.prototype, stream.Stream.prototype);
+Object.setPrototypeOf(Writable, stream.Stream);
 
 function Readable() {
   this.readable = true;
   stream.Stream.call(this);
 }
-util.inherits(Readable, stream.Stream);
+Object.setPrototypeOf(Readable.prototype, stream.Stream.prototype);
+Object.setPrototypeOf(Readable, stream.Stream);
 
 let passed = false;