Function fn

packages/forms/test/form_control_spec.ts:1548–1549

()

        it('should throw when sync validator passed into async validator param', () => {
          const fn = () =>
            new FormControl('', syncValidator, syncValidator as unknown as AsyncValidatorFn);
          // test for the specific error since without the error check it would still throw an error
          // but
          // not a meaningful one