You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: journal_test.rb
    path of file: ./repos/ekylibre/test/models
    
    the code of the file until where you have to start completion: # = Informations
#
# == License
#
# Ekylibre - Simple agricultural ERP
# Copyright (C) 2008-2009 Brice Texier, Thibaud Merigon
# Copyright (C) 2010-2012 Brice Texier
# Copyright (C) 2012-2014 Brice Texier, David Joulin
# Copyright (C
    
    def clean_irrelevant_fixtures
      FinancialYear.delete_all
      OutgoingPayment.delete_all
      Sale.delete_all
      SaleItem.delete_all
      Regularization.delete_all
      Payslip.delete_all
      JournalEntry.delete_all
      JournalEntryItem.delete_all
      Affair.delete_all
      TaxDeclaration.delete_all
    end