To understand the concept of behavior checking, let's revisit an example presented in Chapter 3, Testing Frontend Code, and test the observable behavior of the NewInvestmentView test suite:
describe("NewInvestmentView", function() {
var view;
// setup and other specs ...
describe("with its inputs correctly filled", function() {
// setup and other specs ...
describe("and when an investment is created", function() {
var callbackSpy;
var investment;
beforeEach(function() {
callbackSpy = jasmine.createSpy('callback');
view.onCreate(callbackSpy);
investment = view.create();
});
it("should invoke the 'onCreate' callback with the created investment", function() {
expect(callbackSpy).toHaveBeenCalled();
expect(callbackSpy).toHaveBeenCalledWith(investment);
});
});
});
});During the spec setup, it creates a new Jasmine spy using the jasmine.createSpy function while passing a name...