#! /usr/bin/env python
#
def caesar_test ( ):

#*****************************************************************************80
#
## CAESAR_TEST tests the CAESAR library.
#
#  Licensing:
#
#    This code is distributed under the GNU LGPL license.
#
#  Modified:
#
#    30 January 2016
#
#  Author:
#
#    John Burkardt
#
  import platform
  from s_to_caesar import s_to_caesar

  print ( '' )
  print ( 'CAESAR_TEST' )
  print ( '  Python version: %s' % ( platform.python_version ( ) ) )
  print ( '  Test the CAESAR library.' )
#
#  Test 1
#
  print ( '' )
  print ( '  S2 = S_TO_CAESAR ( S1, K ), varying K.' )
  print ( '' )
  print ( '   K  ---------------S1----------------  ---------------S2----------------' )
  print ( '' )
  for k in range ( -5, 6 ):
    s1 = 'A man, a plan, a canal: Panama!'
    s2 = s_to_caesar ( s1, k )
    print ( '  %2d  "%s"  "%s"' % ( k, s1, s2 ) )
#
#  Test 2
#
  print ( '' )
  print ( '  S2 = S_TO_CAESAR ( S1,  K ).' )
  print ( '  S3 = S_TO_CAESAR ( S2, -K )' )
  print ( '' )
  print ( '   K  ------------S1------------  ------------S2------------  ------------S3------------' )
  print ( '' )
  for k in range ( -5, 6 ):
    s1 = 'The key is under the mat'
    s2 = s_to_caesar ( s1, k )
    s3 = s_to_caesar ( s2, -k )
    print ( '  %2d  "%s"  "%s"  "%s"' % ( k, s1, s2, s3 ) )
#
#  Test 3
#
  print ( '' )
  print ( '  S2 = S_TO_CAESAR ( S1, K ), varying K.' )
  print ( '' )
  print ( '   K  ---------------S2---------------------------------------------------' )
  print ( '' )
  for k in range ( 0, 27 ):
    s1 = 'The only thing we have to fear is fear itself.'
    s2 = s_to_caesar ( s1, k )
    print ( '  %2d  "%s"' % ( k, s2 ) )
#
#  Terminate.
#
  print ( '' )
  print ( 'CAESAR_TEST:' )
  print ( '  Normal end of execution.' )
  return

if ( __name__ == '__main__' ):
  from timestamp import timestamp
  timestamp ( )
  caesar_test ( )
  timestamp ( )