1 files changed, 23 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/proxy/testDirectProxySetInherited.js b/js/src/jit-test/tests/proxy/testDirectProxySetInherited.js
new file mode 100644
index 000000000..9c8c88093
--- /dev/null
+++ b/js/src/jit-test/tests/proxy/testDirectProxySetInherited.js
@@ -0,0 +1,23 @@
+// When assigning to an object with a proxy is on the prototype chain,
+// the proxy's set handler is called.
+
+var C = {};
+var B = new Proxy(C, {
+    get() { throw "FAIL"; },
+    getOwnPropertyDescriptor() { throw "FAIL"; },
+    has() { throw "FAIL"; },
+    defineProperty() { throw "FAIL"; },
+    set(target, id, value, receiver) {
+        hits++;
+        assertEq(target, C);
+        assertEq(id, "x");
+        assertEq(value, 3);
+        assertEq(receiver, A);
+        return true;
+    }
+});
+var A = Object.create(B);
+
+var hits = 0;
+A.x = 3;
+assertEq(hits, 1);