require 'rails_helper' describe Export do describe 'to_csv' do it 'returns a csv of the accounts' do one = Account.new(username: 'one', domain: 'local.host') two = Account.new(username: 'two', domain: 'local.host') accounts = [one, two] export = Export.new(accounts).to_csv results = export.strip.split expect(results.size).to eq 2 expect(results.first).to eq 'one@local.host' end end end