[fix] Call the _final() callback before destroying the stream

Ensure that `'finish'` event is emitted.

Refs: nodejs/node#32780

Author: lpinca

lib/stream.js

@@ -125,8 +125,8 @@ function createWebSocketStream(ws, options) {
     if (ws._socket === null) return;
 
     if (ws._socket._writableState.finished) {
-      if (duplex._readableState.endEmitted) duplex.destroy();
       callback();
+      if (duplex._readableState.endEmitted) duplex.destroy();
     } else {
       ws._socket.once('finish', function finish() {
         // `duplex` is not destroyed here because the `'end'` event will be

test/create-websocket-stream.test.js

@@ -354,7 +354,6 @@ describe('createWebSocketStream', () => {
 
         duplex.on('finish', () => {
           events.push('finish');
-          assert.ok(duplex.destroyed);
         });
 
         duplex.resume();