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.
  #
  # test_pack.py
  #    Tests packing using public methods
  #
  
  import wiredtiger, wttest
  import re, sys
  
  class test_pack(wttest.WiredTigerTestCase):
      name = 'test_pack'
  
      def dump_cursor(self, cursor, name):
          cursor.reset()
          while cursor.next() == 0:
              x = cursor.get_key()
              y = cursor.get_value()
              self.tty(' ' + name + ':  ' + str(x) + ' => ' + str(y))
          cursor.reset()
  
      def check(self, fmt, *v):
          v = list(v)
          fmtname = re.sub('([A-Z])', r'_\1', fmt)
          uri = 'table:' + test_pack.name + '-' + fmtname
          idx_uri = 'index:' + test_pack.name + '-' + fmtname + ':inverse'
          nargs = len(v)
          colnames = ",".join("v" + str(x) for x in xrange(nargs))
          self.session.create(uri, "columns=(k," + colnames + ")," +
                              "key_format=i,value_format=" + fmt)
          self.session.create(idx_uri, "columns=(" + colnames + ")")
          forw = self.session.open_cursor(uri, None, None)
          forw_idx = self.session.open_cursor(idx_uri + "(k)", None, None)
  
          forw.set_key(1234)
          forw.set_value(*v)
          forw.insert()
  
          #self.dump_cursor(forw, 'forw')
          #self.dump_cursor(forw_idx, 'index')
  
          forw.set_key(1234)
          self.assertEquals(forw.search(), 0)
          got = forw.get_value()
          if nargs == 1:  # API does not return a list, we want one for comparing
              got = [got]
          self.assertEquals(got, v)
  
          forw_idx.set_key(*v)
          self.assertEquals(forw_idx.search(), 0)
          self.assertEquals(forw_idx.get_value(), 1234)
          forw.close()
          forw_idx.close()
  
      def test_packing(self):
          self.check('iii', 0, 101, -99)
          self.check('3i', 0, 101, -99)
          self.check('iS', 42, "forty two")
  
          self.check('S', 'abc')
          self.check('9S', 'a' * 9)
          self.check('9SS', "forty two", "spam egg")
          self.check('42S', 'a' * 42)
          self.check('42SS', 'a' * 42, 'something')
          self.check('S42S', 'something', 'a' * 42)
          # nul terminated string with padding
          self.check('10SS', 'aaaaa\x00\x00\x00\x00\x00', 'something')
          self.check('S10S', 'something', 'aaaaa\x00\x00\x00\x00\x00')
  
          self.check('u', r"\x42" * 20)
          self.check('uu', r"\x42" * 10, r"\x42" * 10)
          self.check('3u', r"\x4")
          self.check('3uu', r"\x4", r"\x42" * 10)
          self.check('u3u', r"\x42" * 10, r"\x4")
          self.check('u', '\x00')
          self.check('u', '')
          self.check('uu', '', '\x00')
          self.check('uu', '\x00', '')
          self.check('uu', '', '')
  
          self.check('s', "4")
          self.check("1s", "4")
          self.check("2s", "42")
  
  if __name__ == '__main__':
      wttest.run()
  