new_contents: 
  import os
  
  """Simple nosetest compatible test wrapper that runs the plain-C tests found in brushlib."""
  
  # TODO: get more fine grained test setup
  # * Make the C test lib be able to report the registered testcases
  # * Make the C test lib be able to run a single specified test
  # * Use this to generate and execute one test per case
  
  tests_dir = os.path.dirname(os.path.abspath(__file__))
  lib_dir = os.path.abspath(os.path.join(tests_dir, '../..'))
  
  def is_ctest(fn):
      return fn.startswith('test-') and not os.path.splitext(fn)[1]
  
  def test_brushlib():
      c_tests = [os.path.abspath(os.path.join(tests_dir, fn)) for fn in os.listdir(tests_dir) if is_ctest(fn)]
  
      for executable in c_tests:
          yield run_ctest, executable
  
  def run_ctest(executable):
      import subprocess
  
      environ = {}
      environ.update(os.environ)
      environ.update({'LD_LIBRARY_PATH': lib_dir})
  
      retval = subprocess.call(executable, env=environ, cwd=tests_dir)
      assert (retval == 0)
  
subject: Add a nose compatible wrapper