How to trigger ctrl+enter key combination in js?

Question

JavaScript

It is necessary to call the combination of keys control + inter for the test in karma.
Tried through

angular.element(document.querySelector('main > div')).trigger({type: 'keydown', which: 13}, {type: 'keydown', which: 17});

Answer 1

Why are you testing UI in Karma? Test controllers, their public functions and possibly private ones

Answer 2

var myApp = angular.module('myApp', []);

myApp.controller('Ctrl', function($scope) {


    $scope.keyBuffer = [];

    function arrays_equal(a,b) { return !(a<b || b<a); }

    $scope.down = function(e) {

      $scope.keyBuffer.push(e.keyCode);

      var upUp = [38, 38, 40, 40, 37, 39, 37, 39, 66, 65];
      if (arrays_equal(upUp, $scope.keyBuffer)) {

        alert('thats it!');
      }
    };

  });

https://goo.gl/SyjqkT