Jasmine spyOn not working

I am fairly new to Jasmine, and I have to test a few function calls:

JS CODE

 object1 = {

    function1: function() {
       // object1.function2 is a callback
       object2.someFunction("called", object1.function2)
    },

    function2:  function() {
       // code to do stuff
    }

 }`

TEST CODE

describe("test suite", function(){ 
     it("test1", function(){ 
          spyOn(object1, "function2");
          object1.function1();
          expect(object1.function2).toHaveBeenCalled();
     });
});

I've tried the above but it fails, and says "Expected spy function2 to have been called". Can somebody help me out with this ? Thanks