routing.spec.sample.ts

let createComponent: (name: string, locals: any, bindings: any) => any;
let $state: ng.ui.IStateService;

beforeEach(inject((_$componentController_: ng.IComponentControllerService, _$state_) => {
  createComponent = (name, locals, bindings) => _$componentController_(name, locals, bindings);
  $state = _$state_;
}));

it("should navigate to /todo:id", () => {
  // arrange
  spyOn($state, "go");
  let component = createComponent("todoHome", null, {});
  
  // act
  component.showTodo("1");

  // assert
  expect($state.go).toHaveBeenCalledWith("todo", { id: "1" });
});