angularjs - Writing units tests for a Angular Controller -

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my controller looks 

angular.module('demo').controller('democtrl',['$scope','$modal', function($scope, $modal){    $scope.askforinput = function(action){         var modalinstance = $modal.open({          /* here open modal , display form input */        });        modalinstance.result.then(function(input){       /* process input here */      });    };    }

the part confused how test code i.e test modal opened, form filled , data received in controller ?

i using jasmine , stuck on first line itself.

i wouldn't recommend testing $modal, instead democtrl, askforinput should do. when you're creating controller in test, can inject mock values $scope , $modal. because you're injecting mocks, have complete control on how behave.

for instance, follows:

// dependencies var $scope, $modal, controller;  // test values var modalopeninput, modalinstance;  beforeeach(module("demo"));  beforeeach(inject(function($rootscope, $controller) {     $scope = $rootscope.$new();      modalinstance = {         result: {             then: function(callback) {                 // define here...             }         }     };      $modal = {         open: function(input) {             // storing you're able later             // confirm it's value set             modalopeninput = input;             return modalinstance;         }     };      controller = $controller("democtrl", {         $scope: $scope,         $modal: $modal     }); }));  it("should it's supposed do...", function() {     $scope.askforinput();      // test function works defined...     expect(modalopeninput).tobedefined();     // etc... });

hopefully gives idea on how move forward. can define multiple paths based on input, , verify each path works defined. since have access mocks, you're able define how $modal , it's functions behave.


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