function describeStateParamSpec(productType){

        describe("given $stateParams for the '"+productType+"' product type",  function(){
            beforeEach(function () {
                createControllerForProductType(productType);
            });
            runStateParamSpecs(productType);
        });
    }
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Test the menu controller defined in menu.js

To Test:
- each valid product type can return a products array
- invalid product type returns 'pizza' products
- can generate the right link for a product
- calling vm.go goes to the right view for the product
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