From e3eae662f3d753141571bd132ccb199f95c745ea Mon Sep 17 00:00:00 2001
From: Nayeem Rahman <nayeemrmn99@gmail.com>
Date: Mon, 6 Jun 2022 19:26:57 +0100
Subject: fix: Format non-error exceptions (#14604)

This commit adds "Deno.core.setFormatExceptionCallback" which
can be used to provide custom formatting for errors. It is useful
in cases when user throws something that is non-Error (eg.
a string, plain object, etc).
---
 runtime/js/40_testing.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'runtime/js/40_testing.js')

diff --git a/runtime/js/40_testing.js b/runtime/js/40_testing.js
index 8c7d69fb0..865482042 100644
--- a/runtime/js/40_testing.js
+++ b/runtime/js/40_testing.js
@@ -217,14 +217,16 @@
 
       let msg = `Test case is leaking async ops.
 
-- ${ArrayPrototypeJoin(details, "\n - ")}`;
+ - ${ArrayPrototypeJoin(details, "\n - ")}`;
 
       if (!core.isOpCallTracingEnabled()) {
         msg +=
           `\n\nTo get more details where ops were leaked, run again with --trace-ops flag.`;
+      } else {
+        msg += "\n";
       }
 
-      throw msg;
+      throw assert(false, msg);
     };
   }
 
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