renderWithReactHookForm.js

/**
 * Testing Library utility function to wrap tested component in React Hook Form
 * @param {ReactElement} ui A React component
 * @param objectParameters
 * @param {Object} objectParameters.defaultValues Initial form values to pass into
 * React Hook Form, which you can then assert against
 */
export function renderWithReactHookForm(
  ui,
  { defaultValues = {} } = {}
) {
  let reactHookFormMethods = {};

  const Wrapper = ({ children }) => {
    const methods = useForm({ defaultValues });
    return <FormProvider {...methods}>{children}</FormProvider>;
  };

  return {
    ...render(ui, { wrapper: Wrapper })
  };
}