1 files changed, 23 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/proxy/testDirectProxyOnProtoWithForIn.js b/js/src/jit-test/tests/proxy/testDirectProxyOnProtoWithForIn.js
new file mode 100644
index 0000000000..984e913c0e
--- /dev/null
+++ b/js/src/jit-test/tests/proxy/testDirectProxyOnProtoWithForIn.js
@@ -0,0 +1,23 @@
+let proxy = new Proxy({
+    a: 1,
+    b: 2,
+    c: 3
+}, {
+    enumerate() {
+        // Should not be invoked.
+        assertEq(false, true);
+    },
+
+    ownKeys() {
+        return ['a', 'b'];
+    }
+});
+
+let object = Object.create(proxy);
+object.d = 4;
+
+let a = [];
+for (let x in object) {
+  a.push(x);
+}
+assertEq(a.toString(), "d,a,b");