1 files changed, 39 insertions, 0 deletions
diff --git a/js/src/tests/non262/PrivateName/not-iterable.js b/js/src/tests/non262/PrivateName/not-iterable.js
new file mode 100644
index 0000000000..59c6169079
--- /dev/null
+++ b/js/src/tests/non262/PrivateName/not-iterable.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+//
+// Ensure PrivateNames aren't iterable.
+
+class O {
+  #x = 123;
+  gx() {
+    return this.#x;
+  }
+}
+var o = new O;
+
+assertEq(o.gx(), 123);
+
+assertEq(Object.keys(o).length, 0);
+assertEq(Object.getOwnPropertyNames(o).length, 0);
+assertEq(Object.getOwnPropertySymbols(o).length, 0);
+assertEq(Reflect.ownKeys(o).length, 0);
+
+var forIn = [];
+for (var pk in o) {
+  forIn.push(pk);
+}
+assertEq(forIn.length, 0);
+
+// Proxy case
+var proxy = new Proxy(o, {});
+assertEq(Object.keys(proxy).length, 0);
+assertEq(Object.getOwnPropertyNames(proxy).length, 0);
+assertEq(Object.getOwnPropertySymbols(proxy).length, 0);
+assertEq(Reflect.ownKeys(proxy).length, 0);
+
+for (var pk in proxy) {
+  forIn.push(pk);
+}
+assertEq(forIn.length, 0);
+
+if (typeof reportCompare === 'function')
+  reportCompare(0, 0);