#include <cstring>

 #include <pwd.h>

 #include <cstdio>

 #include <sys/stat.h>
 

 #include "token.h"

 #include "test_util.h"

 const char *fake_user = "";
 const char *fake_user_token = "";
 
 // all the fake system calls

 const char *fake_home_dir = "";

 int fake_getpwnam_r (const char *nam, struct passwd *pwd, char *buffer,
                      size_t bufsize, struct passwd **result)

 {

     strcpy (buffer, fake_home_dir);

     pwd->pw_dir = buffer;

     int ok = !strcmp (nam, fake_user);

     *result = ok ? pwd : 0;
     return !ok;

 }

 const char *fake_stat_path = "";

 int fake_stat (const char *path, struct stat *stat)

 {

     return (strcmp (fake_stat_path, path));

 }
 

 const char *fake_fopen_path = "";
 const char *fake_fopen_mode = "";

 FILE *_fhandle = 0;

 FILE *fake_fopen (const char *path, const char *mode)

 {

     static FILE handle;

     int path_matches = !strcmp (fake_fopen_path, path);
     int mode_matches = !strcmp (fake_fopen_mode, mode);
 
     if (path_matches && mode_matches) {

         _fhandle = &handle;
         return &handle;
     } else {
         _fhandle = 0;
         return 0;
     }
 }
 

 char *fake_fgets (char *buf, int n, FILE *fp)

 {

     if (_fhandle == fp && fp != 0) {

         strncpy (buf, fake_user_token, n - 1);

         return buf;
     } else {
         return 0;
     }
 }
 

 int fake_fclose (FILE *fp)

 {

     return 0;
 }
 
 // STDIO
 

 RESET_VARS_START

 fake_user = "msmith";
 fake_user_token = "123456";
 fake_home_dir = "/home/msmith";
 fake_stat_path = "/home/msmith/.dual_control";
 fake_fopen_path = fake_stat_path;
 fake_fopen_mode = "r";

 RESET_VARS_END
 

 int validate_compares_to_user_token()
 {

 
     // given
 
     // when

     int valid = validate_token ("msmith", "123456");

 
     // then

     check (valid, "expected result to be valid");

 
     succeed();
 
 }
 

 int validates_from_the_right_user()
 {

     //given
 
     //when

     int valid = validate_token ("jbalcita", "12346");

 
     //then

     check (!valid, "expected result to be invalid");

     succeed();
 }
 

 int validates_user_specific_token()
 {

     //given
 
     //when

     int valid = validate_token ("msmith", "654321");

 
     //then

     check (!valid, "expected result to be invalid");

     succeed();
 }

 int runtests()
 {

     test (validate_compares_to_user_token);
     test (validates_from_the_right_user);
     test (validates_user_specific_token);

     succeed();
 }
 

 int main (int argc, char **argv)

 {

     int rval = !runtests();
     return rval;

 }