The Tor Browser / file revision

 // Basic enterFrame hook tests.

 var g = newGlobal();

 var dbg = Debugger(g);

 var type;

 dbg.onEnterFrame = function (frame) {

     try {

         assertEq(frame instanceof Debugger.Frame, true);

         assertEq(frame.live, true);

         type = frame.type;

     } catch (exc) {

         type = "Exception thrown: " + exc;

     }

 };

 function test(f, expected) {

     type = undefined;

     f();

     assertEq(type, expected);

 }

 // eval triggers the hook

 test(function () { g.eval("function h() { return 1; }"); }, "eval");

 // function calls trigger it

 test(function () { assertEq(g.h(), 1); }, "call");

 // global scripts trigger it

 test(function () { g.evaluate("var x = 5;"); assertEq(g.x, 5); }, "global");