function TestURLSync()

in packages/recoil-sync/__test_utils__/RecoilSync_MockURLSerialization.js [24:64]

• 38 lines of code
• 6 McCabe index (conditional complexity)

function TestURLSync({
  storeKey,
  location,
  browserInterface,
}: {
  storeKey?: string,
  location: LocationOption,
  browserInterface?: BrowserInterface,
}): React.Node {
  const serialize = useCallback(
    items => {
      const str = nullthrows(JSON.stringify(items));
      return location.part === 'href'
        ? `/TEST#${encodeURIComponent(str)}`
        : str;
    },
    [location.part],
  );
  const deserialize = useCallback(
    str => {
      const stateStr =
        location.part === 'href' ? decodeURIComponent(str.split('#')[1]) : str;
      // Skip the default URL parts which don't conform to the serialized standard.
      // 'bar' also doesn't conform, but we want to test coexistence of foreign
      // query parameters.
      if (stateStr == null || stateStr === 'anchor' || stateStr === 'foo=bar') {
        return {};
      }
      return JSON.parse(stateStr);
    },
    [location.part],
  );
  useRecoilURLSync({
    storeKey,
    location,
    serialize,
    deserialize,
    browserInterface,
  });
  return null;
}