checkAdapter doesn't cleanup test databases

[nspaeth]

Case

BUG

Issue

checkAdapter creates test databases that are never deleted, cluttering up the developer tools storage tab.

Info

• Environment: browser
• Adapter: (IndexedDB/Localstorage/LevelDB/etc..)
• Stack: (Typescript, react, mobx)

Code

  import * as RxDB
  RxDB.checkAdapter('idb')

The more you refresh this page, the more db clutter you will see in the indexedDB storage section in developer tools.

[pubkey]

I fixed this problem in the 8.0.0-branch but with some differences in the implementation. I see problems with destroying the database when checkAdapter() in parallel, for example when you reopen your browser tabs and open the app multiple times in the same time.

We now do:

• Use the same pouchdb-instance each time, so not all the time a different instance will be created.
• We clean up the test-document.