From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 .../basic/testOverwrittenArgumentsWithUndefined.js | 24 ++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 js/src/jit-test/tests/basic/testOverwrittenArgumentsWithUndefined.js

(limited to 'js/src/jit-test/tests/basic/testOverwrittenArgumentsWithUndefined.js')

diff --git a/js/src/jit-test/tests/basic/testOverwrittenArgumentsWithUndefined.js b/js/src/jit-test/tests/basic/testOverwrittenArgumentsWithUndefined.js
new file mode 100644
index 000000000..5f899243b
--- /dev/null
+++ b/js/src/jit-test/tests/basic/testOverwrittenArgumentsWithUndefined.js
@@ -0,0 +1,24 @@
+function f() {
+    var a = arguments;
+    eval("assertEq(arguments[0], 42)");
+    eval("assertEq(arguments, a)");
+    arguments = undefined;
+    eval("assertEq(arguments, undefined)");
+    arguments = a;
+    eval("assertEq(arguments[0], 42)");
+    eval("assertEq(arguments, a)");
+}
+f(42);
+
+function f(z) {
+    var a = arguments;
+    eval("assertEq(arguments[0], 42)");
+    eval("assertEq(arguments, a)");
+    arguments = undefined;
+    eval("assertEq(arguments, undefined)");
+    z = 17;
+    eval("assertEq(a[0], 17)");
+    a[0] = 'ponies';
+    eval("assertEq(z, 'ponies')");
+}
+f(42);
-- 
cgit v1.2.3