tests/lib/utilunix__my_system-common.c

   1 /*
   2    lib - common code for testing lib/utilinux:my_system() function
   3
   4    Copyright (C) 2013
   5    The Free Software Foundation, Inc.
   6
   7    Written by:
   8    Slava Zanko <slavazanko@gmail.com>, 2013
   9
  10    This file is part of the Midnight Commander.
  11
  12    The Midnight Commander is free software: you can redistribute it
  13    and/or modify it under the terms of the GNU General Public License as
  14    published by the Free Software Foundation, either version 3 of the License,
  15    or (at your option) any later version.
  16
  17    The Midnight Commander is distributed in the hope that it will be useful,
  18    but WITHOUT ANY WARRANTY; without even the implied warranty of
  19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20    GNU General Public License for more details.
  21
  22    You should have received a copy of the GNU General Public License
  23    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  24  */
  25
  26 #include <signal.h>
  27 #include <unistd.h>
  28
  29 #include "lib/global.h"
  30
  31
  32 /* --------------------------------------------------------------------------------------------- */
  33
  34 /* @CapturedValue */
  35 static sigset_t *sigemptyset_set__captured;
  36 /* @ThenReturnValue */
  37 static int sigemptyset__return_value = 0;
  38
  39 /* @Mock */
  40 int
  41 sigemptyset (sigset_t * set)
  42 {
  43     sigemptyset_set__captured = set;
  44     return sigemptyset__return_value;
  45 }
  46
  47 /* --------------------------------------------------------------------------------------------- */
  48
  49 /* @CapturedValue */
  50 static GPtrArray *sigaction_signum__captured = NULL;
  51 /* @CapturedValue */
  52 static GPtrArray *sigaction_act__captured = NULL;
  53 /* @CapturedValue */
  54 static GPtrArray *sigaction_oldact__captured = NULL;
  55 /* @ThenReturnValue */
  56 static int sigaction__return_value = 0;
  57
  58 /* @Mock */
  59 int
  60 sigaction (int signum, const struct sigaction *act, struct sigaction *oldact)
  61 {
  62     int *tmp_signum;
  63     struct sigaction *tmp_act;
  64
  65     /* store signum */
  66     tmp_signum = g_new (int, 1);
  67     memcpy (tmp_signum, &signum, sizeof (int));
  68     if (sigaction_signum__captured != NULL)
  69         g_ptr_array_add (sigaction_signum__captured, tmp_signum);
  70
  71     /* store act */
  72     if (act != NULL)
  73     {
  74         tmp_act = g_new (struct sigaction, 1);
  75         memcpy (tmp_act, act, sizeof (struct sigaction));
  76     }
  77     else
  78         tmp_act = NULL;
  79     if (sigaction_act__captured != NULL)
  80         g_ptr_array_add (sigaction_act__captured, tmp_act);
  81
  82     /* store oldact */
  83     if (oldact != NULL)
  84     {
  85         tmp_act = g_new (struct sigaction, 1);
  86         memcpy (tmp_act, oldact, sizeof (struct sigaction));
  87     }
  88     else
  89         tmp_act = NULL;
  90     if (sigaction_oldact__captured != NULL)
  91         g_ptr_array_add (sigaction_oldact__captured, tmp_act);
  92
  93     return sigaction__return_value;
  94 }
  95
  96 static void
  97 sigaction__init (void)
  98 {
  99     sigaction_signum__captured = g_ptr_array_new ();
 100     sigaction_act__captured = g_ptr_array_new ();
 101     sigaction_oldact__captured = g_ptr_array_new ();
 102 }
 103
 104 static void
 105 sigaction__deinit (void)
 106 {
 107     g_ptr_array_foreach (sigaction_signum__captured, (GFunc) g_free, NULL);
 108     g_ptr_array_free (sigaction_signum__captured, TRUE);
 109
 110     g_ptr_array_foreach (sigaction_act__captured, (GFunc) g_free, NULL);
 111     g_ptr_array_free (sigaction_act__captured, TRUE);
 112
 113     g_ptr_array_foreach (sigaction_oldact__captured, (GFunc) g_free, NULL);
 114     g_ptr_array_free (sigaction_oldact__captured, TRUE);
 115 }
 116
 117 /* --------------------------------------------------------------------------------------------- */
 118
 119 /* @CapturedValue */
 120 static GPtrArray *signal_signum__captured;
 121 /* @CapturedValue */
 122 static GPtrArray *signal_handler__captured;
 123 /* @ThenReturnValue */
 124 static sighandler_t signal__return_value = NULL;
 125
 126 /* @Mock */
 127 sighandler_t
 128 signal (int signum, sighandler_t handler)
 129 {
 130     int *tmp_signum;
 131     sighandler_t *tmp_handler;
 132
 133     /* store signum */
 134     tmp_signum = g_new (int, 1);
 135     memcpy (tmp_signum, &signum, sizeof (int));
 136     g_ptr_array_add (signal_signum__captured, tmp_signum);
 137
 138     /* store handler */
 139     if (handler != SIG_DFL)
 140     {
 141         tmp_handler = g_new (sighandler_t, 1);
 142         memcpy (tmp_handler, handler, sizeof (sighandler_t));
 143     }
 144     else
 145         tmp_handler = (void *) SIG_DFL;
 146     g_ptr_array_add (signal_handler__captured, tmp_handler);
 147
 148     return signal__return_value;
 149 }
 150
 151 static void
 152 signal__init (void)
 153 {
 154     signal_signum__captured = g_ptr_array_new ();
 155     signal_handler__captured = g_ptr_array_new ();
 156 }
 157
 158 static void
 159 signal__deinit (void)
 160 {
 161     g_ptr_array_foreach (signal_signum__captured, (GFunc) g_free, NULL);
 162     g_ptr_array_free (signal_signum__captured, TRUE);
 163
 164     g_ptr_array_foreach (signal_handler__captured, (GFunc) g_free, NULL);
 165     g_ptr_array_free (signal_handler__captured, TRUE);
 166 }
 167
 168 /* --------------------------------------------------------------------------------------------- */
 169
 170 /* @ThenReturnValue */
 171 static pid_t fork__return_value;
 172
 173 /* @Mock */
 174 pid_t
 175 fork (void)
 176 {
 177     return fork__return_value;
 178 }
 179
 180 /* --------------------------------------------------------------------------------------------- */
 181 /* @CapturedValue */
 182 static int my_exit__status__captured;
 183
 184 /* @Mock */
 185 void
 186 my_exit (int status)
 187 {
 188     my_exit__status__captured = status;
 189 }
 190
 191 /* --------------------------------------------------------------------------------------------- */
 192
 193 /* @CapturedValue */
 194 static char *execvp__file__captured = NULL;
 195 /* @CapturedValue */
 196 static GPtrArray *execvp__args__captured;
 197 /* @ThenReturnValue */
 198 static int execvp__return_value = 0;
 199
 200 /* @Mock */
 201 int
 202 execvp (const char *file, char *const argv[])
 203 {
 204     char **one_arg;
 205     execvp__file__captured = g_strdup (file);
 206
 207     for (one_arg = (char **) argv; *one_arg != NULL; one_arg++)
 208         g_ptr_array_add (execvp__args__captured, g_strdup (*one_arg));
 209
 210     return execvp__return_value;
 211 }
 212
 213 static void
 214 execvp__init (void)
 215 {
 216     execvp__args__captured = g_ptr_array_new ();
 217 }
 218
 219 static void
 220 execvp__deinit (void)
 221 {
 222     g_ptr_array_foreach (execvp__args__captured, (GFunc) g_free, NULL);
 223     g_ptr_array_free (execvp__args__captured, TRUE);
 224     g_free (execvp__file__captured);
 225 }
 226
 227 /* --------------------------------------------------------------------------------------------- */
 228
 229 #define VERIFY_SIGACTION__ACT_IGNORED(_pntr) { \
 230     struct sigaction *_act = (struct sigaction *) _pntr; \
 231     fail_unless (_act->sa_handler == SIG_IGN,  " sa_handler should be equals to SIG_IGN"); \
 232     ck_assert_int_eq (_act->sa_flags, 0); \
 233 }
 234
 235 #define VERIFY_SIGACTION__IS_RESTORED(oldact_idx, act_idx) { \
 236     struct sigaction *_oldact = (struct sigaction *) g_ptr_array_index(sigaction_oldact__captured, oldact_idx); \
 237     struct sigaction *_act = (struct sigaction *) g_ptr_array_index(sigaction_act__captured, act_idx); \
 238     fail_unless (memcmp(_oldact, _act, sizeof(struct sigaction)) == 0, \
 239         "sigaction(): oldact[%d] should be equals to act[%d]", oldact_idx, act_idx); \
 240 }
 241
 242 /* @Verify */
 243 #define VERIFY_SIGACTION_CALLS() { \
 244     ck_assert_int_eq (sigaction_signum__captured->len, 6); \
 245 \
 246     ck_assert_int_eq (*((int *) g_ptr_array_index(sigaction_signum__captured, 0)), SIGINT); \
 247     ck_assert_int_eq (*((int *) g_ptr_array_index(sigaction_signum__captured, 1)), SIGQUIT); \
 248     ck_assert_int_eq (*((int *) g_ptr_array_index(sigaction_signum__captured, 2)), SIGTSTP); \
 249     ck_assert_int_eq (*((int *) g_ptr_array_index(sigaction_signum__captured, 3)), SIGINT); \
 250     ck_assert_int_eq (*((int *) g_ptr_array_index(sigaction_signum__captured, 4)), SIGQUIT); \
 251     ck_assert_int_eq (*((int *) g_ptr_array_index(sigaction_signum__captured, 5)), SIGTSTP); \
 252 \
 253     VERIFY_SIGACTION__ACT_IGNORED(g_ptr_array_index(sigaction_act__captured, 0)); \
 254     VERIFY_SIGACTION__ACT_IGNORED(g_ptr_array_index(sigaction_act__captured, 1)); \
 255     { \
 256         struct sigaction *_act  = g_ptr_array_index(sigaction_act__captured, 2); \
 257         fail_unless (memcmp (_act, &startup_handler, sizeof(struct sigaction)) == 0, \
 258             "The 'act' in third call to sigaction() should be equals to startup_handler"); \
 259     } \
 260 \
 261     VERIFY_SIGACTION__IS_RESTORED (0, 3); \
 262     VERIFY_SIGACTION__IS_RESTORED (1, 4); \
 263     VERIFY_SIGACTION__IS_RESTORED (2, 5); \
 264 \
 265     fail_unless (g_ptr_array_index(sigaction_oldact__captured, 3) == NULL, \
 266         "oldact in fourth call to sigaction() should be NULL"); \
 267     fail_unless (g_ptr_array_index(sigaction_oldact__captured, 4) == NULL, \
 268         "oldact in fifth call to sigaction() should be NULL"); \
 269     fail_unless (g_ptr_array_index(sigaction_oldact__captured, 5) == NULL, \
 270         "oldact in sixth call to sigaction() should be NULL"); \
 271 }
 272
 273 /* --------------------------------------------------------------------------------------------- */
 274
 275 #define VERIFY_SIGNAL_HANDLER_IS_SIG_DFL(_idx) { \
 276     sighandler_t *tmp_handler = (sighandler_t *) g_ptr_array_index(signal_handler__captured, _idx);\
 277     fail_unless (tmp_handler == (sighandler_t *) SIG_DFL, \
 278         "signal handler should be SIG_DFL"); \
 279 }
 280
 281 /* @Verify */
 282 #define VERIFY_SIGNAL_CALLS() { \
 283     ck_assert_int_eq (signal_signum__captured->len, 4); \
 284     ck_assert_int_eq (*((int *) g_ptr_array_index(signal_signum__captured, 0)), SIGINT); \
 285     ck_assert_int_eq (*((int *) g_ptr_array_index(signal_signum__captured, 1)), SIGQUIT); \
 286     ck_assert_int_eq (*((int *) g_ptr_array_index(signal_signum__captured, 2)), SIGTSTP); \
 287     ck_assert_int_eq (*((int *) g_ptr_array_index(signal_signum__captured, 3)), SIGCHLD); \
 288     \
 289     VERIFY_SIGNAL_HANDLER_IS_SIG_DFL (0); \
 290     VERIFY_SIGNAL_HANDLER_IS_SIG_DFL (1); \
 291     VERIFY_SIGNAL_HANDLER_IS_SIG_DFL (2); \
 292     VERIFY_SIGNAL_HANDLER_IS_SIG_DFL (3); \
 293 }
 294
 295 /* --------------------------------------------------------------------------------------------- */
 296
 297 /* @Before */
 298 static void
 299 setup (void)
 300 {
 301     signal__return_value = NULL;
 302
 303     sigaction__init ();
 304     signal__init ();
 305     execvp__init ();
 306 }
 307
 308 /* --------------------------------------------------------------------------------------------- */
 309
 310 /* @After */
 311 static void
 312 teardown (void)
 313 {
 314     execvp__deinit ();
 315     signal__deinit ();
 316     sigaction__deinit ();
 317 }
 318
 319 /* --------------------------------------------------------------------------------------------- */