test: cover worker throwing primitive values

A worker that throws a non-Error value (string, number, bigint,
boolean, null, undefined) surfaces that value on the parent's
'error' handler. This was reported as a wrapped ERR_UNHANDLED_ERROR
and is now correct, but had no regression coverage.
Refs: #35506
Signed-off-by: dobbydobap <varshitha.kolupuri@gmail.com>
PR-URL: #64365Fixes: #35506
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

Author: dobbydobap

test/parallel/test-worker-error-primitive.js

@@ -0,0 +1,25 @@
+'use strict';
+constcommon=require('../common');
+constassert=require('assert');
+const{ Worker }=require('worker_threads');
+
+constcases=[
+{code: 'throw "boom";',value: 'boom'},
+{code: 'throw 42;',value: 42},
+{code: 'throw 7n;',value: 7n},
+{code: 'throw true;',value: true},
+{code: 'throw null;',value: null},
+{code: 'throw undefined;',value: undefined},
+{code: 'throw Symbol.for("a");',value: Symbol.for('a')},
+];
+
+for(const{ code, value }ofcases){
+constworker=newWorker(code,{eval: true});
+worker.on('message',common.mustNotCall());
+worker.on('error',common.mustCall((err)=>{
+assert.strictEqual(err,value);
+}));
+worker.on('exit',common.mustCall((exitCode)=>{
+assert.strictEqual(exitCode,1);
+}));
+}