Random Access Storage instance that stores mutations in a memory overlay instead of writing them to the underlying storage.
npm install random-access-memory-overlay
Useful for fixtures etc.
const RAO = require('random-access-memory-overlay')
// make some storage instance
const file = new RandomAccessFile('./my-file')
// make an overlay
const overlay = new RAO(file)
// any mutations done to overlay (ie write, del) are just tracked in memory
// any reads go through the overlay and then the underlying storageMIT