# code
    def client_id
      Client.id_by_name record[:client]
    end

# spec
  context '#client_id' do
    it 'Returns id of client with name that exists in database' do
      allow(Client).to receive(:id_by_name).and_return 14
      expect(record.client_id).to eq 14
    end
    it 'Returns nil if no client with given name in database' do
      allow(Client).to receive(:id_by_name).and_return nil
      expect(record.client_id).to be_nil
    end
  end