test: add test for util.inspect

add test case for util.inspect with 'depth' option set to 'null' and with that has a custom inspect function attached PR-URL: #27906 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Ruben Bridgewater <[email protected]> Reviewed-By: Ujjwal Sharma <[email protected]> Reviewed-By: Сковорода Никита Андреевич <[email protected]> Reviewed-By: Rich Trott <[email protected]> Reviewed-By: Yongsheng Zhang <[email protected]>

Author: Nievl

test/parallel/test-util-inspect.js

@@ -852,6 +852,13 @@ util.inspect({hasOwnProperty: null });
 util.inspect(subject,{customInspectOptions: true,seen: null});
 }
 
+{
+constsubject={[util.inspect.custom]: common.mustCall((depth)=>{
+assert.strictEqual(depth,null);
+})};
+util.inspect(subject,{depth: null});
+}
+
 {
 // Returning `this` from a custom inspection function works.
 constsubject={a: 123,[util.inspect.custom](){returnthis;}};