text: #!/usr/bin/env python
  #
  # Public Domain 2014-2018 MongoDB, Inc.
  # Public Domain 2008-2014 WiredTiger, Inc.
  #
  # This is free and unencumbered software released into the public domain.
  #
  # Anyone is free to copy, modify, publish, use, compile, sell, or
  # distribute this software, either in source code form or as a compiled
  # binary, for any purpose, commercial or non-commercial, and by any
  # means.
  #
  # In jurisdictions that recognize copyright laws, the author or authors
  # of this software dedicate any and all copyright interest in the
  # software to the public domain. We make this dedication for the benefit
  # of the public at large and to the detriment of our heirs and
  # successors. We intend this dedication to be an overt act of
  # relinquishment in perpetuity of all present and future rights to this
  # software under copyright law.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  # IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  # OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  # ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  # OTHER DEALINGS IN THE SOFTWARE.
  
  import os
  import wiredtiger, wttest
  
  # test_baseconfig
  #       test base configuration file being ignored.
  class test_baseconfig(wttest.WiredTigerTestCase):
      def test_baseconfig(self):
          # Open up another database and modify the baseconfig
          os.mkdir("A")
          conn = self.wiredtiger_open("A", 'create')
          self.assertTrue(os.path.exists("A/WiredTiger.basecfg"))
          with open("A/WiredTiger.basecfg", "a") as basecfg_file:
              basecfg_file.write("foo!")
          conn.close()
  
          # Open a database, we should assert here as the basecfg is invalid
          self.assertRaisesWithMessage(
              wiredtiger.WiredTigerError,
              lambda: self.wiredtiger_open("A", ''),
              '/unknown configuration key/')
  
          conn = self.wiredtiger_open("A", "create,config_base=false")
          conn.close()
  
  if __name__ == '__main__':
      wttest.run()
  