typeahead-addresspicker/spec/javascripts/helpers/spec_helper.js

Example of adding google map API to typeahead jquery plugin to display address autocomplete suggestions.

(function() {
  this.mockGoogleMapAutocompleteService = function(response) {
    return window.google.maps.places.AutocompleteService.prototype.getPlacePredictions = function(options, callback) {
      return callback(response);
    };
  };

}).call(this);