Function getRequiredValue

packages/shared/src/components/Feed.spec.tsx:296–305

(
  value: T | null | undefined,
  message: string,
)

}

const getRequiredValue = <T,>(
  value: T | null | undefined,
  message: string,
): T => {
  if (value == null) {
    throw new Error(message);
  }

  return value;
};

const getPostTitle = (post: Pick<Post, 'title'>, label: string): string =>
  getRequiredValue(post.title, `Expected ${label} post title`);