old_contents: import os.path
  from tempfile import mkdtemp
  from unittest import TestCase
  from unittest.mock import patch
  from shutil import copy2
  
  from rosie.chamber_of_deputies import settings
  from rosie.chamber_of_deputies.adapter import Adapter
  
  
  class TestDataset(TestCase):
  
      def setUp(self):
          temp_path = mkdtemp()
          copy2('rosie/chamber_of_deputies/tests/fixtures/companies.xz',
                os.path.join(temp_path, settings.COMPANIES_DATASET))
          copy2('rosie/chamber_of_deputies/tests/fixtures/reimbursements.xz', temp_path)
          self.subject = Adapter(temp_path)
  
      @patch('rosie.chamber_of_deputies.adapter.CEAPDataset')
      @patch('rosie.chamber_of_deputies.adapter.fetch')
      def test_get_performs_a_left_merge_between_reimbursements_and_companies(self, _ceap_dataset, _fetch):
          dataset = self.subject.dataset()
          self.assertEqual(5, len(dataset))
          self.assertEqual(1, dataset['legal_entity'].isnull().sum())
  
new_contents: import shutil
  import os
  from tempfile import mkdtemp
  from unittest import TestCase
  from unittest.mock import patch
  from shutil import copy2
  
  from rosie.chamber_of_deputies.adapter import Adapter
  
  
  class TestDataset(TestCase):
  
      def setUp(self):
          self.temp_path = mkdtemp()
          fixtures = os.path.join('rosie', 'chamber_of_deputies', 'tests', 'fixtures')
          copies = (
              ('companies.xz', Adapter.COMPANIES_DATASET),
              ('reimbursements.xz', 'reimbursements.xz')
          )
          for source, target in copies:
              copy2(os.path.join(fixtures, source), os.path.join(self.temp_path, target))
          self.subject = Adapter(self.temp_path)
  
      def tearDown(self):
          shutil.rmtree(self.temp_path)
  
      @patch('rosie.chamber_of_deputies.adapter.CEAPDataset')
      @patch('rosie.chamber_of_deputies.adapter.fetch')
      def test_get_performs_a_left_merge_between_reimbursements_and_companies(self, fetch, ceap):
          self.assertEqual(5, len(self.subject.dataset))
          self.assertEqual(1, self.subject.dataset['legal_entity'].isnull().sum())
  
subject: Fix companies path in Chamber of Deputies dataset test