old_contents: """
  Contains functional tests of the Bazaar class.
  """
  
  import os
  
  import pytest
  
  from pip._internal.vcs.bazaar import Bazaar
  from tests.lib import (
      _test_path_to_file_url, _vcs_add, create_file, is_bzr_installed, need_bzr,
  )
  
  
  @pytest.mark.skipif(
      'TRAVIS' not in os.environ,
      reason='Bazaar is only required under Travis')
  def test_ensure_bzr_available():
      """Make sure that bzr is available when running in Travis."""
      assert is_bzr_installed()
  
  
  @need_bzr
  def test_export(script, tmpdir):
      """Test that a Bazaar branch can be exported."""
      branch_path = tmpdir / 'test-branch'
      branch_path.mkdir()
  
      create_file(branch_path / 'test_file', 'something')
  
      _vcs_add(script, str(branch_path), vcs='bazaar')
  
      bzr = Bazaar('bzr+' + _test_path_to_file_url(branch_path))
      export_dir = str(tmpdir / 'export')
      bzr.export(export_dir)
  
      assert os.listdir(export_dir) == ['test_file']
  
new_contents: """
  Contains functional tests of the Bazaar class.
  """
  
  import os
  
  import pytest
  
  from pip._internal.vcs.bazaar import Bazaar
  from tests.lib import (
      _test_path_to_file_url, _vcs_add, create_file, is_bzr_installed, need_bzr,
  )
  
  
  @pytest.mark.skipif(
      'TRAVIS' not in os.environ,
      reason='Bazaar is only required under Travis')
  def test_ensure_bzr_available():
      """Make sure that bzr is available when running in Travis."""
      assert is_bzr_installed()
  
  
  @need_bzr
  def test_export(script, tmpdir):
      """Test that a Bazaar branch can be exported."""
      source_dir = tmpdir / 'test-source'
      source_dir.mkdir()
  
      create_file(source_dir / 'test_file', 'something')
  
      _vcs_add(script, str(source_dir), vcs='bazaar')
  
      bzr = Bazaar('bzr+' + _test_path_to_file_url(source_dir))
      export_dir = str(tmpdir / 'export')
      bzr.export(export_dir)
  
      assert os.listdir(export_dir) == ['test_file']
  
  
  @need_bzr
  def test_export_rev(script, tmpdir):
      """Test that a Bazaar branch can be exported, specifying a rev."""
      source_dir = tmpdir / 'test-source'
      source_dir.mkdir()
  
      # Create a single file that is changed by two revisions.
      create_file(source_dir / 'test_file', 'something initial')
      _vcs_add(script, str(source_dir), vcs='bazaar')
  
      create_file(source_dir / 'test_file', 'something new')
      script.run(
          'bzr', 'commit', '-q',
          '--author', 'pip <pypa-dev@googlegroups.com>',
          '-m', 'change test file', cwd=source_dir,
      )
  
      bzr = Bazaar('bzr+' + _test_path_to_file_url(source_dir) + '@1')
      export_dir = tmpdir / 'export'
      bzr.export(str(export_dir))
  
      with open(export_dir / 'test_file', 'r') as f:
          assert f.read() == 'something initial'
  
subject: Add tests for export with revision in the URL.