Function createSnapshot

test/FileSystemInfo.unittest.js:179–211

(
		/** @type {IFs} */ fs,
		/** @type {SnapshotOptions} */ options,
		/** @type {(err?: Error | null, snapshot?: Snapshot | null, snapshot2?: Snapshot | null) => void} */ callback
	)

	};

	const createSnapshot = (
		/** @type {IFs} */ fs,
		/** @type {SnapshotOptions} */ options,
		/** @type {(err?: Error | null, snapshot?: Snapshot | null, snapshot2?: Snapshot | null) => void} */ callback
	) => {
		const fsInfo = createFsInfo(fs);
		fsInfo.createSnapshot(
			Date.now() + 10000,
			files,
			directories,
			missing,
			options,
			(err, snapshot) => {
				if (err) return callback(err);
				/** @type {Snapshot & Record<string, unknown>} */ (snapshot).name =
					"initial snapshot";
				// create another one to test the caching
				fsInfo.createSnapshot(
					Date.now() + 10000,
					files,
					directories,
					missing,
					options,
					(err, snapshot2) => {
						if (err) return callback(err);
						/** @type {Snapshot & Record<string, unknown>} */ (snapshot2).name =
							"cached snapshot";
						callback(null, snapshot, snapshot2);
					}
				);
			}
		);
	};

	const clone = (/** @type {Record<string, unknown>} */ object) => {
		const serialized = buffersSerializer.serialize(object, {});