DatabaseCleaner for Spanner

database_cleaner.rb

class MyDeletionStrategy < DatabaseCleaner::ActiveRecord::Deletion
  def delete_tables(connection, table_names)
    # TODO  
  end
  
  def delete_table(connection, table_name)
    connection.execute("DELETE FROM #{connection.quote_table_name(table_name)} WHERE true")
  end
end

DatabaseCleaner.strategy = MyDeletionStrategy.new

# https://github.com/DatabaseCleaner/database_cleaner-active_record/blob/main/lib/database_cleaner/active_record/deletion.rb#L25-L27