Function normalizeError

packages/react-dom/src/__tests__/ReactRenderDocument-test.js:31–38

(msg)

}

function normalizeError(msg) {
  // Take the first sentence to make it easier to assert on.
  const idx = msg.indexOf('.');
  if (idx > -1) {
    return msg.slice(0, idx + 1);
  }
  return msg;
}

describe('rendering React components at document', () => {
  beforeEach(() => {