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]>
nodejs · May 31, 2019 · 3ba354a · 3ba354a
1 parent f621b8f
commit 3ba354a
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/test/parallel/test-util-inspect.js b/test/parallel/test-util-inspect.js
@@ -852,6 +852,13 @@ util.inspect({ hasOwnProperty: null });
   util.inspect(subject, { customInspectOptions: true, seen: null });
 }
 
+{
+  const subject = { [util.inspect.custom]: common.mustCall((depth) => {
+    assert.strictEqual(depth, null);
+  }) };
+  util.inspect(subject, { depth: null });
+}
+
 {
   // Returning `this` from a custom inspection function works.
   const subject = { a: 123, [util.inspect.custom]() { return this; } };