old_contents: """Testing support (tools to test IPython itself).
  """
  
  #-----------------------------------------------------------------------------
  #  Copyright (C) 2009-2011  The IPython Development Team
  #
  #  Distributed under the terms of the BSD License.  The full license is in
  #  the file COPYING, distributed as part of this software.
  #-----------------------------------------------------------------------------
  
  #-----------------------------------------------------------------------------
  # Functions
  #-----------------------------------------------------------------------------
  
  # User-level entry point for testing
  def test(**kwargs):
      """Run the entire IPython test suite.
  
      Any of the options for run_iptestall() may be passed as keyword arguments.
      """
  
      # Do the import internally, so that this function doesn't increase total
      # import time
      from .iptestcontroller import run_iptestall, default_options
      options = default_options()
      for name, val in kwargs.items():
          setattr(options, name, val)
      run_iptestall(options)
  
  # So nose doesn't try to run this as a test itself and we end up with an
  # infinite test loop
  test.__test__ = False
  
new_contents: """Testing support (tools to test IPython itself).
  """
  
  #-----------------------------------------------------------------------------
  #  Copyright (C) 2009-2011  The IPython Development Team
  #
  #  Distributed under the terms of the BSD License.  The full license is in
  #  the file COPYING, distributed as part of this software.
  #-----------------------------------------------------------------------------
  
  #-----------------------------------------------------------------------------
  # Functions
  #-----------------------------------------------------------------------------
  
  # User-level entry point for testing
  def test(**kwargs):
      """Run the entire IPython test suite.
  
      Any of the options for run_iptestall() may be passed as keyword arguments.
  
      For example:
      
          IPython.test(testgroups=['lib', 'config', 'utils'], fast=2)
      
      will run those three sections of the test suite, using two processes.
      """
  
      # Do the import internally, so that this function doesn't increase total
      # import time
      from .iptestcontroller import run_iptestall, default_options
      options = default_options()
      for name, val in kwargs.items():
          setattr(options, name, val)
      run_iptestall(options)
  
  # So nose doesn't try to run this as a test itself and we end up with an
  # infinite test loop
  test.__test__ = False
  
subject: add example of likely kwargs to test() docstring