False positive mutant in Angular controller

I have this code in an Angular 1.x controller:

    $scope.showDetail = function (id) {
      $uibModal.open({
        templateUrl: 'views/ProductDetail.html',
        controller: 'ProductDetailsController',
        size: 'lg',
        resolve: {
          id: function () {
            return id
          }
        }
      })
    }

My original test simply did expect($uibModal.open).toHaveBeenCalled which lets this mutant survive: $scope.showDetail = function (id) {}.

Performing this mutation manually yields a failing test:

    Expected spy open to have been called with [ { templateUrl : 'views/ProductDetail.html', controller : 'ProductDetailsController', size : <jasmine.any(function String() {
        [native code]
    })>, resolve : { id : <jasmine.any(function Function() {
        [native code]
    })> } } ] but it was never called.

I even extended my test to be more specific about the expected modal dialog: expect($uibModal.open).toHaveBeenCalledWith({ templateUrl: 'views/ProductDetail.html', controller: 'ProductDetailsController', size: jasmine.any(String), resolve: { id: jasmine.any(Function) } })

The mutant $scope.showDetail = function (id) {} still survives. How is that possible?

[nicojs]

@bkimminich we just released Stryker 0.4.4 with the fix. Can you confirm that this issue is now solved?

[nicojs]

@simondel fix works like a charm! See PR #155. I added the unit test to prevent this regression in the future.