From e5173408a4d22e6f027906ea97b5e17ab3f2ab14 Mon Sep 17 00:00:00 2001
From: Pietro Marchini <pietro.marchini94@gmail.com>
Date: Mon, 22 Jul 2024 11:29:55 +0200
Subject: [PATCH] assert: use isError instead of instanceof in innerOk to
 define message type

Co-Authored-By: Ruben Bridgewater <ruben@bridgewater.de>
Co-Authored-By: Nihar Phansalkar <phansalkarnihar@gmail.com>
---
 lib/assert.js                |  2 +-
 test/parallel/test-assert.js | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/assert.js b/lib/assert.js
index 9dfcf80a913942..eadc3844c20128 100644
--- a/lib/assert.js
+++ b/lib/assert.js
@@ -393,7 +393,7 @@ function innerOk(fn, argLen, value, message) {
     } else if (message == null) {
       generatedMessage = true;
       message = getErrMessage(message, fn);
-    } else if (message instanceof Error) {
+    } else if (isError(message)) {
       throw message;
     }
 
diff --git a/test/parallel/test-assert.js b/test/parallel/test-assert.js
index 2964a475c81436..1679edb2941808 100644
--- a/test/parallel/test-assert.js
+++ b/test/parallel/test-assert.js
@@ -55,6 +55,16 @@ assert.throws(() => a.ok(false), a.AssertionError, 'ok(false)');
   assert.ok(threw, 'Error: ok(false)');
 }
 
+// Errors created in different contexts are handled as any other custom error
+{
+  const context = vm.createContext();
+  const error = vm.runInContext('new SyntaxError("custom error")', context);
+
+  assert.throws(() => assert(false, error), {
+    message: 'custom error',
+    name: 'SyntaxError'
+  });
+}
 
 a(true);
 a('test', 'ok(\'test\')');