old_contents: import os.path
  import subprocess
  import sys
  
  
  DIR = os.path.dirname(os.path.abspath(__file__))
  REPO = os.path.dirname(DIR)
  
  
  def call_vulture(args, **kwargs):
      return subprocess.call(
          [sys.executable, 'vulture.py'] + args, cwd=REPO, **kwargs)
  
  
  def test_script():
      assert call_vulture(['whitelist.py', 'vulture.py']) == 0
  
  
  def test_exclude():
      assert call_vulture(['vulture.py', '--exclude', 'vulture.py']) == 0
  
  
  def test_missing_file():
      assert call_vulture(['missing.py']) == 1
  
  
  def test_dir():
      assert call_vulture(['tests']) == 0
  
  
  def test_report():
      assert call_vulture(['vulture.py']) == 1
  
  
  def test_whitelist():
      assert subprocess.call(
          [sys.executable, 'whitelist.py'], cwd=REPO) == 0
  
new_contents: import os.path
  import subprocess
  import sys
  
  
  DIR = os.path.dirname(os.path.abspath(__file__))
  REPO = os.path.dirname(DIR)
  
  
  def call_vulture(args, **kwargs):
      return subprocess.call(
          [sys.executable, 'vulture.py'] + args, cwd=REPO, **kwargs)
  
  
  def test_script():
      assert call_vulture(['whitelist.py', 'vulture.py']) == 0
  
  
  def test_exclude():
      assert call_vulture(['vulture.py', '--exclude', 'vulture.py']) == 0
  
  
  def test_missing_file():
      assert call_vulture(['missing.py']) == 1
  
  
  def test_dir():
      assert call_vulture(['tests']) == 0
  
  
  def test_report():
      assert call_vulture(['vulture.py']) == 1
  
  
  def test_whitelist():
      assert subprocess.call(
          [sys.executable, 'whitelist.py'], cwd=REPO) == 0
  
  
  def test_pyc():
      assert call_vulture(['missing.pyc']) == 1
  
subject: add test