Add file for test prop updates lesson on branch tjs (#14)

* Add prop-updates 01 and 02

* Delete prop-updates.js

Author: zacjones93

src/__tests__/prop-updates-01.js

@@ -0,0 +1,16 @@
+import React from 'react'
+import user from '@testing-library/user-event'
+import {render} from '@testing-library/react'
+import {FavoriteNumber} from '../favorite-number'
+
+test('entering an invalid value shows an error message', () => {
+  const {getByLabelText, getByRole, rerender, debug} = render(
+    <FavoriteNumber />,
+  )
+  const input = getByLabelText(/favorite number/i)
+  user.type(input, '10')
+  expect(getByRole('alert')).toHaveTextContent(/the number is invalid/i)
+  debug()
+  rerender(<FavoriteNumber max={10} />)
+  debug()
+})