ByDisplayValue[Testing Library]

getByDisplayValue(
  container?: HTMLElement,
  value: TextMatch,
  options?: {
    exact?: boolean = true,
    normalizer?: NormalizerFn,
  }): HTMLElement

// component
<input type="text" id="lastName" />
document.getElementById('lastName').value = 'Norris'

<textarea id="messageTextArea" />
document.getElementById('messageTextArea').value = 'Hello World'

<select>
  <option value="">State</option>
  <option value="AL">Alabama</option>
  <option selected value="AK">Alaska</option>
  <option value="AZ">Arizona</option>
</select>
  
// test
import {render, screen} from '@testing-library/react'

const lastNameInput = screen.getByDisplayValue('Norris')
const messageTextArea = screen.getByDisplayValue('Hello World')
const selectElement = screen.getByDisplayValue('Alaska')

• input, textarea, select element에서 실제 표시되는 값과 일치되는 엘리먼트를 반환하는 메서드

출처:
https://testing-library.com/docs/queries/bydisplayvalue