[QA] [Win] Remove connection doesn't delete sync db

[gabi18]

Seen on Win 10 20H2, Client 2.9.1daily20210920 (build 5220)

Steps to reproduce

• remove an existing account (VFS ON or OFF -> same result)
• add a new account and try to reuse previous sync folder

Result

• error popup: already used by another account (reason: .sync_journal.db isn't deleted)

20210920_0958_owncloud.log.0.gz

Expected behaviour

• reuse should be possible, db should be deleted when removing the account

After deleting .sync_journal.db manually the existing sync folder connection can be reused.

TODO: check Win VFS behaviour - what happens with the dehydrated files when deleting the account?

[gabi18]

On linux (tested ownCloud-2.9.1-daily20210920.5220.AppImage on openSUSE 15.3) .sync_journal.db is deleted and therefore it's possible to reuse the sync folder.
After choosing a resolution you can connect to the server.

[gabi18]

Test on Windows 10 20H2 Client 2.9.1daily20210920 with VFS ON concerning dehydrated files when removing an account:

When deleting an account a popup is shown: Really want to remove the account? .... Hint: This will not delete any files.

This isn't true in case of VFS ON: all dehydrated files got removed, only files locally available are still there, also the directory structure.

[gabi18]

More tests with VFS ON (client 2.9.1daily20210920) reusing the sync connection (after deleting .sync_journal.db manually)

• remove account, stop client, delete .sync_journal.db in sync folder root manually
• restart client

1. Connect with same account (nothing changed on server) , choose previous sync folder root
   Result:
   All files are restored, directory structure/files exactly as before

2. Connect to a different account (with different data on server))
   Choose to keep local data
   Result:
   New dirs and files are added to the sync root -> okay
   Empty directories remain -> might be misleading

Changes on server or on client-side are synced correctly.

[gabi18]

Client version 2.7.6 and 2.8.2:
When removing an account, the .sync_xxxxx.db file got deleted from sync folder, only .owncloudsync.log stays there.
Dehydrated files are gone, directory structure remains (same as with client 2.9.1).

[gabi18]

Remark:
Removing an account ("Account" button "Remove") and "Remove sync folder connection" from "..." menu have same result:

• dehydrated files get deleted, files local available stay in sync folder
• folder structure remains
• in case of VFS ON: the VFS registration for the sync folder is removed (unregister VFS)

[gabi18]

Tested with 2.9.1daily20210929 (build 5268):

• remove existing account (or remove folder connection)

Result:
.sync_journal.db gets deleted from sync folder root

[gabi18]

Confirmed with client 2.9.2rc1