Java Script unit testing with YUI Test and Jack mocking framework

test.js

/// <reference path="jack.js" /> 
JST = JSUnitTesting; 

YUI().use("node", "console", "test", function (Y) { 

    var validation_tests = new Y.Test.Case({ 

        name: "Validation tests", 

        "validation should fail when both custom and 
         "predefined reasons are selected": function () { 

             var reasons = [true, false, true]; 
             var result = JST.validate(reasons, "content"); 

             Y.Assert.isFalse(result); 
         }, 

         "validation should succeed when only custom reason is selected": function () { 

             var reasons = [false, false, false]; 
             var result = JST.validate(reasons, "content"); 

             Y.Assert.isTrue(result); 
         }, 

         "validation should fail when none of the reasons is selected": function () { 

             var reasons = [false, false, false]; 
             var result = JST.validate(reasons, ""); 

             Y.Assert.isFalse(result); 
         }, 

         "validation should succeed when only predefined reasons are selected": function () { 

             var reasons = [true, true, true]; 
             var result = JST.validate(reasons, ""); 

             Y.Assert.isTrue(result); 
         } 
}); 

var submission_tests = new Y.Test.Case({ 

    name: "Submission tests", 

    "confirmation should be shown to the user when validation passes and form is about to be submitted": function () { 

        jack(function () { 

            jack.expect("JST.getCustomReason").atLeast(0).returnValue(null); 
            jack.expect("JST.getPredefinedReasons").atLeast(0).returnValue(null); 
            jack.expect("JST.validate").atLeast(0).returnValue(true); 
            jack.expect("JST.notify").once().mock(function (arg) { 
                Y.Assert.areNotEqual(arg.indexOf("Correct"), -1); 
            }); 
               
            JST.submitForm(); 
        }); 
    } 
}); 

var console = new Y.Console({ 
    verbose: true, 
    newestOnTop: false, 
    style: "block", 
    height:"500px" 
}); 

console.render('#testLogger'); 

Y.Test.Runner.add(validation_tests); 
Y.Test.Runner.add(submission_tests); 
Y.Test.Runner.run(); 
});