diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/Debugger-getNewestFrame-01.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/Debugger-getNewestFrame-01.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,20 @@
+// getNewestFrame basics.
+
+load(libdir + "asserts.js");
+
+var g = newGlobal();
+var dbg = new Debugger(g);
+assertEq(dbg.getNewestFrame(), null);
+
+var global = this;
+var frame;
+function f() {
+    frame = dbg.getNewestFrame();
+    assertEq(frame instanceof Debugger.Frame, true);
+    assertEq(frame.type, "eval");
+    assertEq(frame.older, null);
+}
+g.h = this;
+g.eval("h.f()");
+assertEq(frame.live, false);
+assertThrowsInstanceOf(function () { frame.older; }, Error);