import React from 'react'; import { render, screen, act } from '@testing-library/react'; import user from '@testing-library/user-event'; import { useForm } from 'react-hook-form'; import Nope from 'nope-validator'; import { nopeResolver } from '..'; const schema = Nope.object().shape({ username: Nope.string().required(), password: Nope.string().required(), }); interface FormData { unusedProperty: string; username: string; password: string; } interface Props { onSubmit: (data: FormData) => void; } function TestComponent({ onSubmit }: Props) { const { register, formState: { errors }, handleSubmit, } = useForm({ resolver: nopeResolver(schema), // Useful to check TypeScript regressions }); return (
{errors.username && {errors.username.message}} {errors.password && {errors.password.message}}
); } test("form's validation with Yup and TypeScript's integration", async () => { const handleSubmit = jest.fn(); render(); expect(screen.queryAllByRole(/alert/i)).toHaveLength(0); await act(async () => { user.click(screen.getByText(/submit/i)); }); expect(screen.getAllByText(/This field is required/i)).toHaveLength(2); expect(handleSubmit).not.toHaveBeenCalled(); });