$scope.TestFunc = function () {

        alert("TestFunc called");
    }

<button class="btn btn-default btn-column" print-button-spinner  test="TestFunc()" >
    test
 </button>

App.directive('printButtonSpinner', function() {
    return {
        scope:
        {
            docType: '@',
            test: '&'
        },

        restrict: 'A',

        link: function (scope, element) {
            var printFunc = scope.test();
            element.bind('click', printFunc);
        }
    };
});