This is a suspiciousService

suspiciousService.js

function suspiciousService($q) {
    this.doVeryImportantStuff = function (options) {
        if (options.throwException) {
            throw 'An exception thrown as per required options.'
        }


        return $q.resolve({ data: 'Data without exception.' });
    }
}

suspiciousService.$inject = ['$q'];

angular
    .module('demoModule')
    .service('suspiciousService', suspiciousService);