old_contents: #ckwg +28
  # Copyright 2012-2013 by Kitware, Inc.
  # All rights reserved.
  #
  # Redistribution and use in source and binary forms, with or without
  # modification, are permitted provided that the following conditions are met:
  #
  #  * Redistributions of source code must retain the above copyright notice,
  #    this list of conditions and the following disclaimer.
  #
  #  * Redistributions in binary form must reproduce the above copyright notice,
  #    this list of conditions and the following disclaimer in the documentation
  #    and/or other materials provided with the distribution.
  #
  #  * Neither name of Kitware, Inc. nor the names of any contributors may be used
  #    to endorse or promote products derived from this software without specific
  #    prior written permission.
  #
  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
  # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
  # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  
  def test_error(msg):
      import sys
  
      sys.stderr.write("Error: %s\n" % msg)
  
  
  def expect_exception(action, kind, func, *args, **kwargs):
      got_exception = False
  
      try:
          func(*args, **kwargs)
      except kind:
          got_exception = True
      except BaseException:
          import sys
  
          e = sys.exc_info()[1]
  
          test_error("Got unexpected exception: %s" % str(e))
  
          got_exception = True
      except:
          test_error("Got non-standard exception")
  
          got_exception = True
  
      if not got_exception:
          test_error("Did not get exception when %s" % action)
  
  
  def run_test(testname, tests, *args, **kwargs):
      if testname not in tests:
          import sys
  
          test_error("No such test '%s'" % testname)
  
          sys.exit(1)
  
      try:
          tests[testname](*args, **kwargs)
      except BaseException:
          import sys
  
          e = sys.exc_info()[1]
  
          test_error("Unexpected exception: %s" % str(e))
  
new_contents: #ckwg +28
  # Copyright 2012-2013 by Kitware, Inc.
  # All rights reserved.
  #
  # Redistribution and use in source and binary forms, with or without
  # modification, are permitted provided that the following conditions are met:
  #
  #  * Redistributions of source code must retain the above copyright notice,
  #    this list of conditions and the following disclaimer.
  #
  #  * Redistributions in binary form must reproduce the above copyright notice,
  #    this list of conditions and the following disclaimer in the documentation
  #    and/or other materials provided with the distribution.
  #
  #  * Neither name of Kitware, Inc. nor the names of any contributors may be used
  #    to endorse or promote products derived from this software without specific
  #    prior written permission.
  #
  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
  # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
  # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  
  def find_tests(scope):
      prefix = 'test_'
      tests = {}
  
      for name, obj in scope.items():
          if name.startswith(prefix) and callable(obj):
              tests[name[len(prefix):]] = obj
  
      return tests
  
  
  def test_error(msg):
      import sys
  
      sys.stderr.write("Error: %s\n" % msg)
  
  
  def expect_exception(action, kind, func, *args, **kwargs):
      got_exception = False
  
      try:
          func(*args, **kwargs)
      except kind:
          got_exception = True
      except BaseException:
          import sys
  
          e = sys.exc_info()[1]
  
          test_error("Got unexpected exception: %s" % str(e))
  
          got_exception = True
      except:
          test_error("Got non-standard exception")
  
          got_exception = True
  
      if not got_exception:
          test_error("Did not get exception when %s" % action)
  
  
  def run_test(testname, tests, *args, **kwargs):
      if testname not in tests:
          import sys
  
          test_error("No such test '%s'" % testname)
  
          sys.exit(1)
  
      try:
          tests[testname](*args, **kwargs)
      except BaseException:
          import sys
  
          e = sys.exc_info()[1]
  
          test_error("Unexpected exception: %s" % str(e))
  
subject: Support findings Python tests in a scope