message: test(Navigation): add missing test for trackBy
diff: @@ -276,4 +276,14 @@ describe(`TsNavigationComponent`, function() {
  });
  +
  + describe(`trackByFn`, function() {
  +
  + test(`should return the index passed to it`, function() {
  + expect(component.trackByFn(3)).toEqual(3);
  + expect(component.trackByFn(6)).toEqual(6);
  + });
  +
  + });
  +
  });
  