Function asyncValidator

packages/forms/signals/test/web/template_fvc.spec.ts:208–211

()

      // Add async validator that never resolves to keep pending state
      let resolveValidator: () => void;
      const asyncValidator = () =>
        new Promise<null>((resolve) => {
          resolveValidator = () => resolve(null);
        });

      act(() => {
        fixture.componentInstance.model.control.addAsyncValidators(asyncValidator);