Function createStorage

client/src/modules/newsFeed.test.js:12–19

(initialValue)

} from "./newsFeed.js";

function createStorage(initialValue) {
  const data = new Map(initialValue ? [["__cb_news_seen_ids", initialValue]] : []);

  return {
    getItem: (key) => data.get(key) || null,
    setItem: (key, value) => data.set(key, value),
  };
}

test("normalizeNewsFeed keeps only renderable news items", () => {
  const items = normalizeNewsFeed({