1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Set/prototype/isSubsetOf/builtins.js b/js/src/tests/test262/built-ins/Set/prototype/isSubsetOf/builtins.js
new file mode 100644
index 0000000000..fb5ee4ce4d
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Set/prototype/isSubsetOf/builtins.js
@@ -0,0 +1,28 @@
+// |reftest| skip -- set-methods is not supported
+// Copyright (C) 2023 Anthony Frehner and Kevin Gibbons. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-set.prototype.issubsetof
+description: Tests that Set.prototype.isSubsetOf meets the requirements for built-in objects
+features: [set-methods]
+---*/
+
+assert.sameValue(
+  Object.isExtensible(Set.prototype.isSubsetOf),
+  true,
+  "Built-in objects must be extensible."
+);
+
+assert.sameValue(
+  Object.prototype.toString.call(Set.prototype.isSubsetOf),
+  "[object Function]",
+  "Object.prototype.toString"
+);
+
+assert.sameValue(
+  Object.getPrototypeOf(Set.prototype.isSubsetOf),
+  Function.prototype,
+  "prototype"
+);
+
+reportCompare(0, 0);