old_contents: from __future__ import absolute_import, print_function
  
  from ..pyautoupdate.launcher import Launcher
  from ..pyautoupdate.exceptions import CorruptedFileWarning
  from .pytest_skipif import needinternet
  from .pytest_makevers import fixture_update_dir
  
  import os
  
  import pytest
  from requests import HTTPError
  
  @needinternet
  def test_check_update_needed(fixture_update_dir):
      """Test that ensures that updates occur when needed"""
      package=fixture_update_dir("0.0.1")
      launch = Launcher('blah',
                        r'http://rlee287.github.io/pyautoupdate/testing/')
      isnew=launch.check_new()
      assert isnew
      assert os.path.isfile("version.txt")
      assert os.path.isfile("version_history.log")
      with open("version_history.log","r") as log_handle:
          log=log_handle.read()
      assert "New" in log
  
  @needinternet
  def test_check_update_notneeded(fixture_update_dir):
      """Test to check update checker when update is not necessary"""
      package=fixture_update_dir('0.2.0')
      launch = Launcher('pypipypipypipypi',
                        r'http://rlee287.github.io/pyautoupdate/testing/')
      isnew=launch.check_new()
      assert not isnew
      assert os.path.isfile("version.txt")
      assert os.path.isfile("version_history.log")
      with open("version_history.log","r") as log_handle:
          log=log_handle.read()
      assert "Up to date" in log
  
  @needinternet
  def test_check_update_nourl(fixture_update_dir):
      """Test that ensures graceful failure when version.txt is missing"""
      package=fixture_update_dir("0.2.0")
      with pytest.raises(HTTPError):
          #No version.txt at the following url
          launch = Launcher('ANNOYING',
                            r'http://rlee287.github.io/pyautoupdate/')
          launch.check_new()
  
  @pytest.fixture(scope="function")
  def remove_dump(request):
      def teardown():
          for glob in glob.iglob("newverdump*"):
              os.remove(glob)
      requests.addfinalizer(teardown)
      return remove_dump
  
  @needinternet
  def test_check_update_invalidvers(fixture_update_dir,remove_dump):
      """Test that ensures that updates occur when needed"""
      package=fixture_update_dir("0.0.1")
      launch = Launcher('blah',
                        r'http://rlee287.github.io/pyautoupdate/testing2/')
      with pytest.raises(CorruptedFileWarning):
          launch.check_new()
      assert os.path.isfile("version.txt")
      assert os.path.isfile("version_history.log")
      with open("version_history.log","r") as log_handle:
          log=log_handle.read()
      assert "Server Invalid" in log
  
  
new_contents: from __future__ import absolute_import, print_function
  
  from ..pyautoupdate.launcher import Launcher
  from ..pyautoupdate.exceptions import CorruptedFileWarning
  from .pytest_skipif import needinternet
  from .pytest_makevers import fixture_update_dir
  
  import glob
  import os
  
  import pytest
  from requests import HTTPError
  
  @needinternet
  def test_check_update_needed(fixture_update_dir):
      """Test that ensures that updates occur when needed"""
      package=fixture_update_dir("0.0.1")
      launch = Launcher('blah',
                        r'http://rlee287.github.io/pyautoupdate/testing/')
      isnew=launch.check_new()
      assert isnew
      assert os.path.isfile("version.txt")
      assert os.path.isfile("version_history.log")
      with open("version_history.log","r") as log_handle:
          log=log_handle.read()
      assert "New" in log
  
  @needinternet
  def test_check_update_notneeded(fixture_update_dir):
      """Test to check update checker when update is not necessary"""
      package=fixture_update_dir('0.2.0')
      launch = Launcher('pypipypipypipypi',
                        r'http://rlee287.github.io/pyautoupdate/testing/')
      isnew=launch.check_new()
      assert not isnew
      assert os.path.isfile("version.txt")
      assert os.path.isfile("version_history.log")
      with open("version_history.log","r") as log_handle:
          log=log_handle.read()
      assert "Up to date" in log
  
  @needinternet
  def test_check_update_nourl(fixture_update_dir):
      """Test that ensures graceful failure when version.txt is missing"""
      package=fixture_update_dir("0.2.0")
      with pytest.raises(HTTPError):
          #No version.txt at the following url
          launch = Launcher('ANNOYING',
                            r'http://rlee287.github.io/pyautoupdate/')
          launch.check_new()
  
  @pytest.fixture(scope="function")
  def remove_dump(request):
      def teardown(requests):
          for glob in glob.iglob("newverdump*"):
              os.remove(glob)
      requests.addfinalizer(teardown)
      return remove_dump
  
  @needinternet
  def test_check_update_invalidvers(fixture_update_dir,remove_dump):
      """Test that ensures that updates occur when needed"""
      package=fixture_update_dir("0.0.1")
      launch = Launcher('blah',
                        r'http://rlee287.github.io/pyautoupdate/testing2/')
      with pytest.raises(CorruptedFileWarning):
          launch.check_new()
      assert os.path.isfile("version.txt")
      assert os.path.isfile("version_history.log")
      with open("version_history.log","r") as log_handle:
          log=log_handle.read()
      assert "Server Invalid" in log
  
  
subject: Fix missing imports and fixtures in test_check_update.py