tests: adding test-developer-assumptions

1 files changed, 311 insertions, 0 deletions

diff --git a/tests/test-assumptions.c b/tests/test-assumptions.c
new file mode 100644
index 0000000..224aef1
--- /dev/null
+++ b/tests/test-assumptions.c
@@ -0,0 +1,311 @@
+/*
+ *  Tiny RADIUS Client Library
+ *  Copyright (C) 2022 David M. Syzdek <david@syzdek.net>.
+ *  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 the name of David M. Syzdek nor the
+ *       names of its 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 DAVID M. SYZDEK 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.
+ */
+#define _TESTS_TEST_ASSUMPTIONS_C 1
+
+
+///////////////
+//           //
+//  Headers  //
+//           //
+///////////////
+#pragma mark - Headers
+
+#undef NDEBUG
+
+#include "common.h"
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <assert.h>
+#include <stdatomic.h>
+
+#include <tinyrad.h>
+
+
+///////////////////
+//               //
+//  Definitions  //
+//               //
+///////////////////
+#pragma mark - Definitions
+
+#undef PROGRAM_NAME
+#define PROGRAM_NAME "test-assumptions"
+
+
+/////////////////
+//             //
+//  Datatypes  //
+//             //
+/////////////////
+#pragma mark - Datatypes
+
+struct my_data8
+{
+   char        member0;
+   char        member1;
+   char        member2;
+   uint8_t     member3;
+   uint8_t     member4;
+   uint8_t     member5;
+   int8_t      member6;
+   int8_t      member7;
+   int8_t      member8;
+};
+
+struct my_data16
+{
+   uint16_t    member0;
+   uint16_t    member1;
+   uint16_t    member2;
+   int16_t     member3;
+   int16_t     member4;
+   int16_t     member5;
+};
+
+struct my_data32
+{
+   uint32_t    member0;
+   uint32_t    member1;
+   uint32_t    member2;
+   int32_t     member3;
+   int32_t     member4;
+   int32_t     member5;
+};
+
+struct my_data64
+{
+   uint64_t    member0;
+   uint64_t    member1;
+   uint64_t    member2;
+   int64_t     member3;
+   int64_t     member4;
+   int64_t     member5;
+};
+
+struct my_data_mixed
+{
+   char        member0;
+   char        member1;
+   char        member2;
+   uint8_t     member3;
+   uint8_t     member4;
+   uint8_t     member5;
+   int8_t      member6;
+   int8_t      member7;
+
+   uint16_t    member8;
+   uint16_t    member9;
+   int16_t     member10;
+   int16_t     member11;
+
+   uint32_t    member12;
+   int32_t     member13;
+
+   uint64_t    member14;
+
+   int64_t     member15;
+
+   int8_t      member16;
+   int8_t      member17;
+   int16_t     member18;
+   int32_t     member19;
+};
+
+
+struct my_data_intptr
+{
+   intptr_t    member0;
+   intptr_t    member1;
+   intptr_t    member2;
+   uintptr_t   member3;
+   uintptr_t   member4;
+   uintptr_t   member5;
+};
+
+
+struct my_data_ptr
+{
+   void *      member0;
+   void *      member1;
+   void *      member2;
+   void *      member3;
+   void *      member4;
+   void *      member5;
+};
+
+
+struct my_obj
+{
+   uint8_t                 magic[8];
+   atomic_intptr_t         ref_count;
+   void (*free_func)(void * ptr);
+};
+
+
+struct my_data
+{
+   struct my_obj     obj;
+   int8_t            member0;
+   int8_t            member1;
+   int16_t           member2;
+   int32_t           member3;
+};
+
+
+//////////////////
+//              //
+//  Prototypes  //
+//              //
+//////////////////
+#pragma mark - Prototypes
+
+int
+main(
+         int                           argc,
+         char *                        argv[] );
+
+
+/////////////////
+//             //
+//  Functions  //
+//             //
+/////////////////
+#pragma mark - Functions
+
+int
+main(
+         int                           argc,
+         char *                        argv[] )
+{
+   int                           c;
+   int                           opt_index;
+   unsigned                      opts;
+
+   // getopt options
+   static char          short_opt[] = "dhVvq";
+   static struct option long_opt[] =
+   {
+      {"debug",            no_argument,       NULL, 'd' },
+      {"help",             no_argument,       NULL, 'h' },
+      {"quiet",            no_argument,       NULL, 'q' },
+      {"silent",           no_argument,       NULL, 'q' },
+      {"version",          no_argument,       NULL, 'V' },
+      {"verbose",          no_argument,       NULL, 'v' },
+      { NULL, 0, NULL, 0 }
+   };
+
+   opts  = 0;
+
+   while((c = getopt_long(argc, argv, short_opt, long_opt, &opt_index)) != -1)
+   {
+      switch(c)
+      {
+         case -1:       /* no more arguments */
+         case 0:        /* long options toggles */
+         break;
+
+         case 'd':
+         break;
+
+         case 'h':
+         printf("Usage: %s [OPTIONS]\n", PROGRAM_NAME);
+         printf("OPTIONS:\n");
+         printf("  -d, --debug               print debug messages\n");
+         printf("  -h, --help                print this help and exit\n");
+         printf("  -q, --quiet, --silent     do not print messages\n");
+         printf("  -V, --version             print version number and exit\n");
+         printf("  -v, --verbose             print verbose messages\n");
+         printf("\n");
+         return(0);
+
+         case 'q':
+         opts |=  TRAD_TEST_QUIET;
+         opts &= ~TRAD_TEST_VERBOSE;
+         break;
+
+         case 'V':
+         printf("%s (%s) %s\n", PROGRAM_NAME, PACKAGE_NAME, PACKAGE_VERSION);
+         return(0);
+
+         case 'v':
+         opts |=  TRAD_TEST_VERBOSE;
+         opts &= ~TRAD_TEST_QUIET;
+         break;
+
+         case '?':
+         fprintf(stderr, "Try `%s --help' for more information.\n", PROGRAM_NAME);
+         return(1);
+
+         default:
+         fprintf(stderr, "%s: unrecognized option `--%c'\n", PROGRAM_NAME, c);
+         fprintf(stderr, "Try `%s --help' for more information.\n", PROGRAM_NAME);
+         return(1);
+      };
+   };
+
+   // data type size assumptions
+   assert(sizeof(  int8_t   )  ==  1 );
+   assert(sizeof( uint8_t   )  ==  1 );
+   assert(sizeof(  int16_t  )  ==  2 );
+   assert(sizeof( uint16_t  )  ==  2 );
+   assert(sizeof(  int32_t  )  ==  4 );
+   assert(sizeof( uint32_t  )  ==  4 );
+   assert(sizeof(  int64_t  )  ==  8 );
+   assert(sizeof( uint64_t  )  ==  8 );
+   assert(sizeof(  intptr_t )  ==  sizeof(void *) );
+   assert(sizeof( uintptr_t )  ==  sizeof(void *) );
+   assert(sizeof(    size_t )  ==  sizeof(void *) );
+   assert(sizeof(   ssize_t )  ==  sizeof(void *) );
+
+   // struct packing assumptions
+   assert(sizeof( struct my_data8  )     ==  (1*9));
+   assert(sizeof( struct my_data16 )     ==  (2*6));
+   assert(sizeof( struct my_data32 )     ==  (4*6));
+   assert(sizeof( struct my_data64 )     ==  (8*6));
+   assert(sizeof( struct my_data_mixed ) ==  (8*6));
+   assert(sizeof( struct my_data_ptr )   ==  sizeof( struct my_data_intptr) );
+   assert(sizeof( struct my_data )       == (16 + (sizeof(void *) * 2)) );
+
+   if ((opts & TRAD_TEST_VERBOSE))
+      printf("%s: It appears that the developer's assumptions are correct.\n", PROGRAM_NAME);
+
+   return(0);
+}
+
+
+/* end of source */
+