using Jasmines spyon upon a private method

javascript unit-testing jasmine
user502014 picture user502014 · Dec 12, 2011 · Viewed 57.2k times · Source

is it possible to use Jasmine unit testing framework's spyon method upon a classes private methods?

The documentation gives this example but can this be flexivble for a private function?

describe("Person", function() {
    it("calls the sayHello() function", function() {
        var fakePerson = new Person();
        spyOn(fakePerson, "sayHello");
        fakePerson.helloSomeone("world");
        expect(fakePerson.sayHello).toHaveBeenCalled();
    });
});

Answer

Luillyfe picture Luillyfe · Feb 11, 2018

Just add a generic parameter < any> to the spyon() function:

 spyOn<any>(fakePerson, 'sayHello');

It works on perfectly !

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