old_contents: import subprocess
  import sys
  
  from . import REPO, WHITELISTS
  
  
  def call_vulture(args, **kwargs):
      return subprocess.call(
          [sys.executable, '-m', 'vulture'] + args, cwd=REPO, **kwargs)
  
  
  def test_module_with_explicit_whitelists():
      assert call_vulture(['vulture/'] + WHITELISTS) == 0
  
  
  def test_module_with_implicit_whitelists():
      assert call_vulture(['vulture/']) == 0
  
  
  def test_module_without_whitelists():
      assert call_vulture(['vulture/', '--exclude', 'whitelists']) == 1
  
  
  def test_missing_file():
      assert call_vulture(['missing.py']) == 1
  
  
  def test_tests():
      assert call_vulture(['tests/']) == 0
  
  
  def test_whitelists_with_python():
      for whitelist in WHITELISTS:
          assert subprocess.call([sys.executable, whitelist], cwd=REPO) == 0
  
  
  def test_pyc():
      assert call_vulture(['missing.pyc']) == 1
  
  
  def test_sort_by_size():
      assert call_vulture(['vulture/utils.py', '--sort-by-size']) == 1
  
  
  def test_min_confidence():
      assert call_vulture([
          'vulture/core.py', '--exclude', 'whitelists',
          '--min-confidence', '100']) == 0
  
  
  def test_exclude():
      def get_csv(paths):
          return ",".join(os.path.join('vulture', path) for path in paths)
  
      def call_vulture_with_excludes(excludes):
          return call_vulture(['vulture/', '--exclude', get_csv(excludes)])
  
      assert call_vulture_with_excludes(['core.py', 'utils.py']) == 1
      assert call_vulture_with_excludes(['core.py', 'utils.py', 'lines.py']) == 0
  
new_contents: import os.path
  import subprocess
  import sys
  
  from . import REPO, WHITELISTS
  
  
  def call_vulture(args, **kwargs):
      return subprocess.call(
          [sys.executable, '-m', 'vulture'] + args, cwd=REPO, **kwargs)
  
  
  def test_module_with_explicit_whitelists():
      assert call_vulture(['vulture/'] + WHITELISTS) == 0
  
  
  def test_module_with_implicit_whitelists():
      assert call_vulture(['vulture/']) == 0
  
  
  def test_module_without_whitelists():
      assert call_vulture(['vulture/', '--exclude', 'whitelists']) == 1
  
  
  def test_missing_file():
      assert call_vulture(['missing.py']) == 1
  
  
  def test_tests():
      assert call_vulture(['tests/']) == 0
  
  
  def test_whitelists_with_python():
      for whitelist in WHITELISTS:
          assert subprocess.call([sys.executable, whitelist], cwd=REPO) == 0
  
  
  def test_pyc():
      assert call_vulture(['missing.pyc']) == 1
  
  
  def test_sort_by_size():
      assert call_vulture(['vulture/utils.py', '--sort-by-size']) == 1
  
  
  def test_min_confidence():
      assert call_vulture([
          'vulture/core.py', '--exclude', 'whitelists',
          '--min-confidence', '100']) == 0
  
  
  def test_exclude():
      def get_csv(paths):
          return ",".join(os.path.join('vulture', path) for path in paths)
  
      def call_vulture_with_excludes(excludes):
          return call_vulture(['vulture/', '--exclude', get_csv(excludes)])
  
      assert call_vulture_with_excludes(['core.py', 'utils.py']) == 1
      assert call_vulture_with_excludes(['core.py', 'utils.py', 'lines.py']) == 0
  
subject: Add missing import in tests.