Merge pull request #3430 from overleaf/msm-filetree-open-selected-entity

[ReactFileTree] Use Local Storage for Open/Closed state of folders and selected doc

GitOrigin-RevId: 55073c92fef6c6e1d538a42b22d60d8657b92153

services/web/test/frontend/bootstrap.js

@@ -24,6 +24,16 @@ moment.updateLocale('en', {
   }
 })
 
+let inMemoryLocalStorage = {}
+global.localStorage = {
+  // localStorage returns `null` when the item does not exist
+  getItem: key =>
+    inMemoryLocalStorage[key] !== undefined ? inMemoryLocalStorage[key] : null,
+  setItem: (key, value) => (inMemoryLocalStorage[key] = value),
+  clear: () => (inMemoryLocalStorage = {}),
+  removeItem: key => delete inMemoryLocalStorage[key]
+}
+
 // node-fetch doesn't accept relative URL's: https://github.com/node-fetch/node-fetch/blob/master/docs/v2-LIMITS.md#known-differences
 const fetch = require('node-fetch')
 global.fetch = (url, ...options) => fetch('http://localhost' + url, ...options)