1 files changed, 15 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/testSwitchUndefined.js b/js/src/jit-test/tests/basic/testSwitchUndefined.js
new file mode 100644
index 0000000000..44d27ca38c
--- /dev/null
+++ b/js/src/jit-test/tests/basic/testSwitchUndefined.js
@@ -0,0 +1,15 @@
+function testSwitchUndefined()
+{
+  var x = undefined;
+  var y = 0;
+  for (var i = 0; i < 5; i++)
+  {
+    switch (x)
+    {
+      default:
+        y++;
+    }
+  }
+  return y;
+}
+assertEq(testSwitchUndefined(), 5);