test: add regression test for signal handler removal in exit

Refs: #30581 Refs: #30582 PR-URL: #30589 Refs: #30581 Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Gireesh Punathil <[email protected]> Reviewed-By: Richard Lau <[email protected]> Reviewed-By: Beth Griggs <[email protected]> Reviewed-By: Michael Dawson <[email protected]> Reviewed-By: Luigi Pinca <[email protected]>

Author: addaleax

test/parallel/test-signal-handler-remove-on-exit.js

@@ -0,0 +1,9 @@
+'use strict';
+require('../common');
+
+// Regression test for https://github.com/nodejs/node/issues/30581
+// This script should not crash.
+
+functiondummy(){}
+process.on('SIGINT',dummy);
+process.on('exit',()=>process.removeListener('SIGINT',dummy));