test code for Counter component with @testing-library/react

counter4.test.js

import React from "react";
import { render } from "@testing-library/react";
import Counter from "./Counter";

it("Counter 컴포넌트를 렌더링합니다", () => {
  const { getByText } = render(<Counter />);

  getByText("Counter: 0");
  getByText("+");
  getByText("-");
});