CODEWITHSUNDEEP
angularjsjasmine
SkyArc
SkyArc

Reputation: 476

How to spyOn a private function in service factory

For the below service factory I want to check if foo() is called or not. And also want to validate the return values of the foo() function. Would anyone tell me how to use spyOn to do this using Jasmine? I am new to the Jasmine framework.

angular.module('myapp').
factory('messageservice', ['$http', '$q', function ($http, $q) {

function foo(query) {
    return 'foo';
}

function getServerMessages(query) {
    var query=foo();
    return $http.get(query))
                    .then(function (result) {
                        console.log('success');
                    }, function (err) {
                        debugger;
                        console.log('error');
                    });
}

return {
    getMessages: getFolderMessages,
    getMessageDetails: getServerMessages
};
}]);

Thanks,

Krishna

Upvotes: 2

Views: 1467

Answers (1)

Pieter Herroelen
Pieter Herroelen

Reputation: 6066

You cannot do this directly but you can do it indirectly by spying on $http and seeing what is passed as an argument. If you get the right argument, you also know that foo() was called, otherwise it wouldn't have the correct value.

spyOn($http, 'get').andReturn(aPromiseYouShouldResolveAtSomePointInYourTest);
expect($http.get).toHaveBeenCalled();
var queryItWasCalledWith = $http.get.mostRecentCall.args;
// do some assertions on queryItWasCalledWith

Upvotes: 2

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