Error when writing to database in tests file

[indigotechtutorials]

I am using this gem to interact with sqlite3 using db.execute command to insert new records into table

I started writing tests for my app using minitest and now I'm seeing this error when running my test file with multiple methods trying to write to database I think its because of parallel running but I'm not sure why I can't write to the database at the same time as another process is.

SQLite3::ReadOnlyException: attempt to write a readonly database

Any ideas on how to get around this? I could try to make my tests run one at a time but I'd like to find a solution