Jasmine Spy snippets

gistfile1.js

var Person = function() {};

Person.prototype.helloSomeone = function(toGreet) {
    return this.sayHello() + " " + toGreet;
};

Person.prototype.sayHello = function() {
    return "Hello";
};

describe("Person", function() {
    it("says hello", function() {
          var fakePerson = new Person();
          fakePerson.sayHello = jasmine.createSpy("Say-hello spy");
          fakePerson.helloSomeone("world");
          expect(fakePerson.sayHello).toHaveBeenCalled();
    });
});




var obj = {
            sayHello: function() {
   }
};

var spy = spyOn(obj, 'sayHello').and.callThrough();
obj.sayHello();
expect(obj.sayHello).toHaveBeenCalled();