angularjs业力测试typeerror $ route

Question

I am trying to test a controller for angularjs using karma, the controller inject a $route to get the current path but when I try to run karma test on it I get.

TypeError: 'undefined' is not an object( evaluating '$route.current')

Here is my controller:

angular.module('myApp').controller('EditController',['$scope', '$http', '$route', function($scope,
$http,$route){

    var myId = $route.current.params.myId;  
    $scope.var1 = 'var1';  
    console.log(myId);
}]);

Here is my Karma file:

'use strict';
describe('Controller: EditController', function(){
    beforeEach(module('myApp'));
    var EditCtrl,scope,route;

    beforeEach(inject(function($controller,$rootScope,$route,$http){
     scope=$rootScope.$new();
     EditCtrl = $controller('EditCtrl',{
        $scope:scope,
        $route:route
     });
    }));

    it('should have var1 equal to "var1"',function(){
        expect(scope.var1).toEqual('var1');
    }); 
});

Answer 1

Your beforeEach hook isn't injecting the $route service. Change it to this.

beforeEach(inject(function($controller,$rootScope,$route,$http){
 scope=$rootScope.$new();
 route = $route;
 EditCtrl = $controller('EditCtrl',{
    $scope:scope,
    $route:route
 });
}));

You may also want to mock the $route.current object in case it isn't instantiated properly, since there's no routing going on in your test. In which case you could just add

$route.current = { params: { myId: 'test' } };

in the hook as well.