assert,util: fix commutativity edge case

Verify that both objects property keys are enumerable. Fixes: #37710 PR-URL: #37711 Reviewed-By: Benjamin Gruenbaum <[email protected]> Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: Antoine du Hamel <[email protected]> Reviewed-By: Rich Trott <[email protected]>
nodejs · Mar 16, 2021 · ce8ac4d · ce8ac4d
1 parent ea10155
commit ce8ac4d
Show file tree

Hide file tree

Showing 2 changed files with 11 additions and 1 deletion.
diff --git a/lib/internal/util/comparisons.js b/lib/internal/util/comparisons.js
@@ -282,7 +282,7 @@ function keyCheck(val1, val2, strict, memos, iterationType, aKeys) {
   // Cheap key test
   let i = 0;
   for (; i < aKeys.length; i++) {
-    if (!ObjectPrototypeHasOwnProperty(val2, aKeys[i])) {
+    if (!ObjectPrototypePropertyIsEnumerable(val2, aKeys[i])) {
       return false;
     }
   }

diff --git a/test/parallel/test-assert-deep.js b/test/parallel/test-assert-deep.js
@@ -1194,3 +1194,13 @@ assert.throws(
   Object.setPrototypeOf(b, null);
   assertNotDeepOrStrict(a, b, assert.AssertionError);
 }
+
+{
+  // Verify commutativity
+  // Regression test for https://github.com/nodejs/node/issues/37710
+  const a = { x: 1 };
+  const b = { y: 1 };
+  Object.defineProperty(b, 'x', { value: 1 });
+
+  assertNotDeepOrStrict(a, b);
+}