diff --git a/lib/unit.js b/lib/unit.js
index 6a0aa7c..ed7c432 100644
--- a/lib/unit.js
+++ b/lib/unit.js
@@ -220,21 +220,22 @@ exports.init = function (opt) {
                 udf.setup(function (ctx) {
                     var listener = new Listener(getEngine());
                     if (aMeta.script) {
-                        getEngine().exec(aMeta.script, function (err, result) {
-                            listener.assert(test);
-                            try {
-                                udf.test(test, err, result, ctx);
-                            }
-                            catch (e) {
-                                test.ok(false, 'Got Exception in tester: ' + util.inspect(e, false, null));
-                            }
-                            udf.tearDown(function () {
-                                test.done();
-                                cb();
-                            }, ctx);
+                        getEngine().execute(aMeta.script, {context: {foo:'bar'}}, function(emitter) {
+                            emitter.on('end', function (err, result) {
+                                listener.assert(test);
+                                try {
+                                    udf.test(test, err, result, ctx);
+                                }
+                                catch (e) {
+                                    test.ok(false, 'Got Exception in tester: ' + util.inspect(e, false, null));
+                                }
+                                udf.tearDown(function () {
+                                    test.done();
+                                    cb();
+                                }, ctx);
+                            });
                         });
-                    }
-                    else if (aMeta.request) {
+                    }else if (aMeta.request) {
                         getConsole().app.listen(port, function () {
                             var options = {
                                 host:'localhost',