old_contents: import pytest
  
  from pip._internal.commands.debug import create_vendor_txt_map
  from pip._internal.utils import compatibility_tags
  
  
  @pytest.mark.parametrize('expected_text', [
      'sys.executable: ',
      'sys.getdefaultencoding: ',
      'sys.getfilesystemencoding: ',
      'locale.getpreferredencoding: ',
      'sys.platform: ',
      'sys.implementation:',
      '\'cert\' config value: ',
      'REQUESTS_CA_BUNDLE: ',
      'CURL_CA_BUNDLE: ',
      'pip._vendor.certifi.where(): ',
      'pip._vendor.DEBUNDLED: ',
      'vendored library versions:',
  
  ])
  def test_debug(script, expected_text):
      """
      Check that certain strings are present in the output.
      """
      args = ['debug']
      result = script.pip(*args, allow_stderr_warning=True)
      stdout = result.stdout
  
      assert expected_text in stdout
  
  
  def test_debug__library_versions(script):
      """
      Check the library versions normal output.
      """
      args = ['debug']
      result = script.pip(*args, allow_stderr_warning=True)
      stdout = result.stdout
      vendored_versions = create_vendor_txt_map()
      for name, value in vendored_versions.items():
          assert '{}=={}'.format(name, value) in stdout
  
  
  @pytest.mark.parametrize(
      'args',
      [
          [],
          ['--verbose'],
      ]
  )
  def test_debug__tags(script, args):
      """
      Check the compatible tag output.
      """
      args = ['debug'] + args
      result = script.pip(*args, allow_stderr_warning=True)
      stdout = result.stdout
  
      tags = compatibility_tags.get_supported()
      expected_tag_header = 'Compatible tags: {}'.format(len(tags))
      assert expected_tag_header in stdout
  
      show_verbose_note = '--verbose' not in args
      assert (
          '...\n  [First 10 tags shown. Pass --verbose to show all.]' in stdout
      ) == show_verbose_note
  
  
  @pytest.mark.parametrize(
      'args, expected',
      [
          (['--python-version', '3.7'], "(target: version_info='3.7')"),
      ]
  )
  def test_debug__target_options(script, args, expected):
      """
      Check passing target-related options.
      """
      args = ['debug'] + args
      result = script.pip(*args, allow_stderr_warning=True)
      stdout = result.stdout
  
      assert 'Compatible tags: ' in stdout
      assert expected in stdout
  
new_contents: import pytest
  
  from pip._internal.commands.debug import create_vendor_txt_map
  from pip._internal.utils import compatibility_tags
  
  
  @pytest.mark.parametrize('expected_text', [
      'sys.executable: ',
      'sys.getdefaultencoding: ',
      'sys.getfilesystemencoding: ',
      'locale.getpreferredencoding: ',
      'sys.platform: ',
      'sys.implementation:',
      '\'cert\' config value: ',
      'REQUESTS_CA_BUNDLE: ',
      'CURL_CA_BUNDLE: ',
      'pip._vendor.certifi.where(): ',
      'pip._vendor.DEBUNDLED: ',
      'vendored library versions:',
  
  ])
  def test_debug(script, expected_text):
      """
      Check that certain strings are present in the output.
      """
      args = ['debug']
      result = script.pip(*args, allow_stderr_warning=True)
      stdout = result.stdout
  
      assert expected_text in stdout
  
  
  def test_debug__library_versions(script):
      """
      Check the library versions normal output.
      """
      args = ['debug']
      result = script.pip(*args, allow_stderr_warning=True)
      print(result.stdout)
  
      vendored_versions = create_vendor_txt_map()
      for name, value in vendored_versions.items():
          assert '{}=={}'.format(name, value) in result.stdout
  
  
  @pytest.mark.parametrize(
      'args',
      [
          [],
          ['--verbose'],
      ]
  )
  def test_debug__tags(script, args):
      """
      Check the compatible tag output.
      """
      args = ['debug'] + args
      result = script.pip(*args, allow_stderr_warning=True)
      stdout = result.stdout
  
      tags = compatibility_tags.get_supported()
      expected_tag_header = 'Compatible tags: {}'.format(len(tags))
      assert expected_tag_header in stdout
  
      show_verbose_note = '--verbose' not in args
      assert (
          '...\n  [First 10 tags shown. Pass --verbose to show all.]' in stdout
      ) == show_verbose_note
  
  
  @pytest.mark.parametrize(
      'args, expected',
      [
          (['--python-version', '3.7'], "(target: version_info='3.7')"),
      ]
  )
  def test_debug__target_options(script, args, expected):
      """
      Check passing target-related options.
      """
      args = ['debug'] + args
      result = script.pip(*args, allow_stderr_warning=True)
      stdout = result.stdout
  
      assert 'Compatible tags: ' in stdout
      assert expected in stdout
  
subject: Print output in test_debug__library_versions