Why is this async Jasmine test failing?

Why is this test failing, saying that the onSuccess spy was never called?

it('should correctly call the success callback',function(done)
{
    const callbacks={
        onSuccess:function()
        {
            console.log('OK');
            done();
        },
        onError:function()
        {
            console.log('ERR');
            done();
        }
    };

    spyOn(callbacks,'onSuccess').and.callThrough();
    spyOn(callbacks,'onError').and.callThrough();

    doSomethingAsync(callbacks.onSuccess,callbacks.onError);

    expect(callbacks.onSuccess).toHaveBeenCalled();
    expect(callbacks.onError).not.toHaveBeenCalled();
});

When running the test, I get an error saying Expected spy onSuccess to have been called..
Right above that, there's a console log saying "OK", meaning that the spy was called and that it called through.