1 files changed, 12 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/proxy/testDirectProxySetArray2.js b/js/src/jit-test/tests/proxy/testDirectProxySetArray2.js
new file mode 100644
index 0000000000..1025aa04f9
--- /dev/null
+++ b/js/src/jit-test/tests/proxy/testDirectProxySetArray2.js
@@ -0,0 +1,12 @@
+// Direct proxies pass through the receiver argument to [[Set]] to their targets.
+// This also tests that an ordinary object's [[Set]] method can change the length
+// of an array passed as the receiver.
+
+load(libdir + "asserts.js");
+
+var a = [0, 1, 2, 3];
+var p = new Proxy({}, {});
+Reflect.set(p, "length", 2, a);
+assertEq("length" in p, false);
+assertEq(a.length, 2);
+assertDeepEq(a, [0, 1]);