anchor.diff:                                     {'date', <<"Sat, 13 Nov 2010 23:29:00 GMT">>}, {'error-info', <<"<sip:not-in-service-recording@atlanta.com>">>},
                                      {'expires', <<"213">>}, {'from', <<"sip:alice@localhost">>},
                                      {'in-reply-to', <<"70710@saturn.bell-tel.com, 17320@saturn.bell-tel.com">>}, {'max-forwards', 70},
  -                                   {'min-expires', <<"213">>},
  +                                   {'min-expires', <<"213">>}, {'mime-version', <<"1.0">>},
   
   
                                      {'content-length', <<"5">>}, {'via', <<"SIP/2.0/UDP localhost">>},
  
positive.code: process(f, 'min-expires', Length) when is_integer(Length) ->
      sip_binary:integer_to_binary(Length);
  
  
  %% .....
  process(pn, <<"v">>, _Ignore) -> 'via';
  
negative.code:      % Min-Expires
       ?_assertEqual(213, parse('min-expires', <<"213">>)),
       ?_assertEqual(<<"213">>, format('min-expires', 213)),
  
       % MIME-Version
       ?_assertEqual({1, 0}, parse('mime-version', <<"1.0">>)),
       ?_assertEqual(<<"1.0">>, format('mime-version', {1, 0})),
  
  
  
  