Function expectErrors

packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js:167–183

(errorsArr, toBeDevArr, toBeProdArr)

  });

  function expectErrors(errorsArr, toBeDevArr, toBeProdArr) {
    const mappedErrows = errorsArr.map(({error, errorInfo}) => {
      const stack = errorInfo && errorInfo.componentStack;
      const digest = error.digest;
      if (stack) {
        return [error.message, digest, normalizeCodeLocInfo(stack)];
      } else if (digest) {
        return [error.message, digest];
      }
      return error.message;
    });
    if (__DEV__) {
      expect(mappedErrows).toEqual(toBeDevArr);
    } else {
      expect(mappedErrows).toEqual(toBeProdArr);
    }
  }

  function componentStack(components) {
    return components