old_contents: from __future__ import absolute_import, print_function, unicode_literals
  
  import os
  
  import pytest
  
  import _test_utilities
  
  
  def test_fix_outsourcing_contrib_comments():
  
      if os.environ.get(
          "IGNORE_CONTRIB_COMMENTS"
      ):  # case where external dependency "django_comments" isn't loaded
  
          with pytest.raises(ImportError) as exc:
              from django.contrib import comments
          expected_error = str(exc)
          expected_error = expected_error.replace(r"\'", "'")  # Sometimes quotes are escaped...
          assert (
              "No module named 'django_comments' (when loading alias name 'django.contrib.comments')"
              in expected_error
          )
  
      else:
  
          from django.contrib import comments
          import django.contrib.comments
  
          import django.contrib.comments.urls
  
          assert isinstance(django.contrib.comments.urls.urlpatterns, list)
  
          from django.contrib.comments.views import comments as comments_views
  
          assert callable(comments_views.post_comment)
  
new_contents: from __future__ import absolute_import, print_function, unicode_literals
  
  import os
  
  import pytest
  
  import _test_utilities
  
  
  def test_fix_outsourcing_contrib_comments():
  
      if os.environ.get(
          "IGNORE_CONTRIB_COMMENTS"
      ):  # case where external dependency "django_comments" isn't loaded
  
          with pytest.raises(ImportError) as excinfo:
              from django.contrib import comments
          exc = excinfo.value
          expected_error = str(exc)
          assert (
              "No module named 'django_comments' (when loading alias name 'django.contrib.comments')"
              in expected_error
          )
  
      else:
  
          from django.contrib import comments
          import django.contrib.comments
  
          import django.contrib.comments.urls
  
          assert isinstance(django.contrib.comments.urls.urlpatterns, list)
  
          from django.contrib.comments.views import comments as comments_views
  
          assert callable(comments_views.post_comment)
  
subject: Fix buggy use of pytest.raises() in tests.