test/testutil/tests.c

   1 /*
   2  * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include "../testutil.h"
  11 #include "output.h"
  12 #include "tu_local.h"
  13
  14 #include <errno.h>
  15 #include <string.h>
  16 #include <ctype.h>
  17 #include "internal/nelem.h"
  18 #include <openssl/asn1.h>
  19
  20 /*
  21  * Output a failed test first line.
  22  * All items are optional are generally not preinted if passed as NULL.
  23  * The special cases are for prefix where "ERROR" is assumed and for left
  24  * and right where a non-failure message is produced if either is NULL.
  25  */
  26 void test_fail_message_prefix(const char *prefix, const char *file,
  27                               int line, const char *type,
  28                               const char *left, const char *right,
  29                               const char *op)
  30 {
  31     test_printf_stderr("%s: ", prefix != NULL ? prefix : "ERROR");
  32     if (type)
  33         test_printf_stderr("(%s) ", type);
  34     if (op != NULL) {
  35         if (left != NULL && right != NULL)
  36             test_printf_stderr("'%s %s %s' failed", left, op, right);
  37         else
  38             test_printf_stderr("'%s'", op);
  39     }
  40     if (file != NULL) {
  41         test_printf_stderr(" @ %s:%d", file, line);
  42     }
  43     test_printf_stderr("\n");
  44 }
  45
  46 /*
  47  * A common routine to output test failure messages.  Generally this should not
  48  * be called directly, rather it should be called by the following functions.
  49  *
  50  * |desc| is a printf formatted description with arguments |args| that is
  51  * supplied by the user and |desc| can be NULL.  |type| is the data type
  52  * that was tested (int, char, ptr, ...).  |fmt| is a system provided
  53  * printf format with following arguments that spell out the failure
  54  * details i.e. the actual values compared and the operator used.
  55  *
  56  * The typical use for this is from an utility test function:
  57  *
  58  * int test6(const char *file, int line, int n) {
  59  *     if (n != 6) {
  60  *         test_fail_message(1, file, line, "int", "value %d is not %d", n, 6);
  61  *         return 0;
  62  *     }
  63  *     return 1;
  64  * }
  65  *
  66  * calling test6(3, "oops") will return 0 and produce out along the lines of:
  67  *      FAIL oops: (int) value 3 is not 6\n
  68  */
  69 static void test_fail_message(const char *prefix, const char *file, int line,
  70                               const char *type, const char *left,
  71                               const char *right, const char *op,
  72                               const char *fmt, ...)
  73             PRINTF_FORMAT(8, 9);
  74
  75 static void test_fail_message_va(const char *prefix, const char *file,
  76                                  int line, const char *type,
  77                                  const char *left, const char *right,
  78                                  const char *op, const char *fmt, va_list ap)
  79 {
  80     test_fail_message_prefix(prefix, file, line, type, left, right, op);
  81     if (fmt != NULL) {
  82         test_vprintf_stderr(fmt, ap);
  83         test_printf_stderr("\n");
  84     }
  85     test_flush_stderr();
  86 }
  87
  88 static void test_fail_message(const char *prefix, const char *file,
  89                               int line, const char *type,
  90                               const char *left, const char *right,
  91                               const char *op, const char *fmt, ...)
  92 {
  93     va_list ap;
  94
  95     va_start(ap, fmt);
  96     test_fail_message_va(prefix, file, line, type, left, right, op, fmt, ap);
  97     va_end(ap);
  98 }
  99
 100 void test_info_c90(const char *desc, ...)
 101 {
 102     va_list ap;
 103
 104     va_start(ap, desc);
 105     test_fail_message_va("INFO", NULL, -1, NULL, NULL, NULL, NULL, desc, ap);
 106     va_end(ap);
 107 }
 108
 109 void test_info(const char *file, int line, const char *desc, ...)
 110 {
 111     va_list ap;
 112
 113     va_start(ap, desc);
 114     test_fail_message_va("INFO", file, line, NULL, NULL, NULL, NULL, desc, ap);
 115     va_end(ap);
 116 }
 117
 118 void test_error_c90(const char *desc, ...)
 119 {
 120     va_list ap;
 121
 122     va_start(ap, desc);
 123     test_fail_message_va(NULL, NULL, -1, NULL, NULL, NULL, NULL, desc, ap);
 124     va_end(ap);
 125     test_printf_stderr("\n");
 126 }
 127
 128 void test_error(const char *file, int line, const char *desc, ...)
 129 {
 130     va_list ap;
 131
 132     va_start(ap, desc);
 133     test_fail_message_va(NULL, file, line, NULL, NULL, NULL, NULL, desc, ap);
 134     va_end(ap);
 135     test_printf_stderr("\n");
 136 }
 137
 138 void test_perror(const char *s)
 139 {
 140     /*
 141      * Using openssl_strerror_r causes linking issues since it isn't
 142      * exported from libcrypto.so
 143      */
 144     TEST_error("%s: %s", s, strerror(errno));
 145 }
 146
 147 void test_note(const char *fmt, ...)
 148 {
 149     if (fmt != NULL) {
 150         va_list ap;
 151
 152         va_start(ap, fmt);
 153         test_vprintf_stderr(fmt, ap);
 154         va_end(ap);
 155         test_printf_stderr("\n");
 156     }
 157     test_flush_stderr();
 158 }
 159
 160
 161 int test_skip(const char *file, int line, const char *desc, ...)
 162 {
 163     va_list ap;
 164
 165     va_start(ap, desc);
 166     test_fail_message_va("SKIP", file, line, NULL, NULL, NULL, NULL, desc, ap);
 167     va_end(ap);
 168     return TEST_SKIP_CODE;
 169 }
 170
 171 int test_skip_c90(const char *desc, ...)
 172 {
 173     va_list ap;
 174
 175     va_start(ap, desc);
 176     test_fail_message_va("SKIP", NULL, -1, NULL, NULL, NULL, NULL, desc, ap);
 177     va_end(ap);
 178     test_printf_stderr("\n");
 179     return TEST_SKIP_CODE;
 180 }
 181
 182
 183 void test_openssl_errors(void)
 184 {
 185     ERR_print_errors_cb(openssl_error_cb, NULL);
 186     ERR_clear_error();
 187 }
 188
 189 /*
 190  * Define some comparisons between pairs of various types.
 191  * These functions return 1 if the test is true.
 192  * Otherwise, they return 0 and pretty-print diagnostics.
 193  *
 194  * In each case the functions produced are:
 195  *  int test_name_eq(const type t1, const type t2, const char *desc, ...);
 196  *  int test_name_ne(const type t1, const type t2, const char *desc, ...);
 197  *  int test_name_lt(const type t1, const type t2, const char *desc, ...);
 198  *  int test_name_le(const type t1, const type t2, const char *desc, ...);
 199  *  int test_name_gt(const type t1, const type t2, const char *desc, ...);
 200  *  int test_name_ge(const type t1, const type t2, const char *desc, ...);
 201  *
 202  * The t1 and t2 arguments are to be compared for equality, inequality,
 203  * less than, less than or equal to, greater than and greater than or
 204  * equal to respectively.  If the specified condition holds, the functions
 205  * return 1.  If the condition does not hold, the functions print a diagnostic
 206  * message and return 0.
 207  *
 208  * The desc argument is a printf format string followed by its arguments and
 209  * this is included in the output if the condition being tested for is false.
 210  */
 211 #define DEFINE_COMPARISON(type, name, opname, op, fmt)                  \
 212     int test_ ## name ## _ ## opname(const char *file, int line,        \
 213                                      const char *s1, const char *s2,    \
 214                                      const type t1, const type t2)      \
 215     {                                                                   \
 216         if (t1 op t2)                                                   \
 217             return 1;                                                   \
 218         test_fail_message(NULL, file, line, #type, s1, s2, #op,         \
 219                           "[" fmt "] compared to [" fmt "]",            \
 220                           t1, t2);                                      \
 221         return 0;                                                       \
 222     }
 223
 224 #define DEFINE_COMPARISONS(type, name, fmt)                             \
 225     DEFINE_COMPARISON(type, name, eq, ==, fmt)                          \
 226     DEFINE_COMPARISON(type, name, ne, !=, fmt)                          \
 227     DEFINE_COMPARISON(type, name, lt, <, fmt)                           \
 228     DEFINE_COMPARISON(type, name, le, <=, fmt)                          \
 229     DEFINE_COMPARISON(type, name, gt, >, fmt)                           \
 230     DEFINE_COMPARISON(type, name, ge, >=, fmt)
 231
 232 DEFINE_COMPARISONS(int, int, "%d")
 233 DEFINE_COMPARISONS(unsigned int, uint, "%u")
 234 DEFINE_COMPARISONS(char, char, "%c")
 235 DEFINE_COMPARISONS(unsigned char, uchar, "%u")
 236 DEFINE_COMPARISONS(long, long, "%ld")
 237 DEFINE_COMPARISONS(unsigned long, ulong, "%lu")
 238 DEFINE_COMPARISONS(size_t, size_t, "%zu")
 239 DEFINE_COMPARISONS(double, double, "%g")
 240
 241 DEFINE_COMPARISON(void *, ptr, eq, ==, "%p")
 242 DEFINE_COMPARISON(void *, ptr, ne, !=, "%p")
 243
 244 int test_ptr_null(const char *file, int line, const char *s, const void *p)
 245 {
 246     if (p == NULL)
 247         return 1;
 248     test_fail_message(NULL, file, line, "ptr", s, "NULL", "==", "%p", p);
 249     return 0;
 250 }
 251
 252 int test_ptr(const char *file, int line, const char *s, const void *p)
 253 {
 254     if (p != NULL)
 255         return 1;
 256     test_fail_message(NULL, file, line, "ptr", s, "NULL", "!=", "%p", p);
 257     return 0;
 258 }
 259
 260 int test_true(const char *file, int line, const char *s, int b)
 261 {
 262     if (b)
 263         return 1;
 264     test_fail_message(NULL, file, line, "bool", s, "true", "==", "false");
 265     return 0;
 266 }
 267
 268 int test_false(const char *file, int line, const char *s, int b)
 269 {
 270     if (!b)
 271         return 1;
 272     test_fail_message(NULL, file, line, "bool", s, "false", "==", "true");
 273     return 0;
 274 }
 275
 276 int test_str_eq(const char *file, int line, const char *st1, const char *st2,
 277                 const char *s1, const char *s2)
 278 {
 279     if (s1 == NULL && s2 == NULL)
 280       return 1;
 281     if (s1 == NULL || s2 == NULL || strcmp(s1, s2) != 0) {
 282         test_fail_string_message(NULL, file, line, "string", st1, st2, "==",
 283                                  s1, s1 == NULL ? 0 : strlen(s1),
 284                                  s2, s2 == NULL ? 0 : strlen(s2));
 285         return 0;
 286     }
 287     return 1;
 288 }
 289
 290 int test_str_ne(const char *file, int line, const char *st1, const char *st2,
 291                 const char *s1, const char *s2)
 292 {
 293     if ((s1 == NULL) ^ (s2 == NULL))
 294       return 1;
 295     if (s1 == NULL || strcmp(s1, s2) == 0) {
 296         test_fail_string_message(NULL, file, line, "string", st1, st2, "!=",
 297                                  s1, s1 == NULL ? 0 : strlen(s1),
 298                                  s2, s2 == NULL ? 0 : strlen(s2));
 299         return 0;
 300     }
 301     return 1;
 302 }
 303
 304 int test_strn_eq(const char *file, int line, const char *st1, const char *st2,
 305                  const char *s1, size_t n1, const char *s2, size_t n2)
 306 {
 307     if (s1 == NULL && s2 == NULL)
 308       return 1;
 309     if (n1 != n2 || s1 == NULL || s2 == NULL || strncmp(s1, s2, n1) != 0) {
 310         test_fail_string_message(NULL, file, line, "string", st1, st2, "==",
 311                                  s1, s1 == NULL ? 0 : OPENSSL_strnlen(s1, n1),
 312                                  s2, s2 == NULL ? 0 : OPENSSL_strnlen(s2, n2));
 313         return 0;
 314     }
 315     return 1;
 316 }
 317
 318 int test_strn_ne(const char *file, int line, const char *st1, const char *st2,
 319                  const char *s1, size_t n1, const char *s2, size_t n2)
 320 {
 321     if ((s1 == NULL) ^ (s2 == NULL))
 322       return 1;
 323     if (n1 != n2 || s1 == NULL || strncmp(s1, s2, n1) == 0) {
 324         test_fail_string_message(NULL, file, line, "string", st1, st2, "!=",
 325                                  s1, s1 == NULL ? 0 : OPENSSL_strnlen(s1, n1),
 326                                  s2, s2 == NULL ? 0 : OPENSSL_strnlen(s2, n2));
 327         return 0;
 328     }
 329     return 1;
 330 }
 331
 332 int test_mem_eq(const char *file, int line, const char *st1, const char *st2,
 333                 const void *s1, size_t n1, const void *s2, size_t n2)
 334 {
 335     if (s1 == NULL && s2 == NULL)
 336         return 1;
 337     if (n1 != n2 || s1 == NULL || s2 == NULL || memcmp(s1, s2, n1) != 0) {
 338         test_fail_memory_message(NULL, file, line, "memory", st1, st2, "==",
 339                                  s1, n1, s2, n2);
 340         return 0;
 341     }
 342     return 1;
 343 }
 344
 345 int test_mem_ne(const char *file, int line, const char *st1, const char *st2,
 346                 const void *s1, size_t n1, const void *s2, size_t n2)
 347 {
 348     if ((s1 == NULL) ^ (s2 == NULL))
 349         return 1;
 350     if (n1 != n2)
 351         return 1;
 352     if (s1 == NULL || memcmp(s1, s2, n1) == 0) {
 353         test_fail_memory_message(NULL, file, line, "memory", st1, st2, "!=",
 354                                  s1, n1, s2, n2);
 355         return 0;
 356     }
 357     return 1;
 358 }
 359
 360 #define DEFINE_BN_COMPARISONS(opname, op, zero_cond)                    \
 361     int test_BN_ ## opname(const char *file, int line,                  \
 362                            const char *s1, const char *s2,              \
 363                            const BIGNUM *t1, const BIGNUM *t2)          \
 364     {                                                                   \
 365         if (BN_cmp(t1, t2) op 0)                                        \
 366             return 1;                                                   \
 367         test_fail_bignum_message(NULL, file, line, "BIGNUM", s1, s2,    \
 368                                  #op, t1, t2);                          \
 369         return 0;                                                       \
 370     }                                                                   \
 371     int test_BN_ ## opname ## _zero(const char *file, int line,         \
 372                                     const char *s, const BIGNUM *a)     \
 373     {                                                                   \
 374         if (a != NULL &&(zero_cond))                                    \
 375             return 1;                                                   \
 376         test_fail_bignum_mono_message(NULL, file, line, "BIGNUM",       \
 377                                       s, "0", #op, a);                  \
 378         return 0;                                                       \
 379     }
 380
 381 DEFINE_BN_COMPARISONS(eq, ==, BN_is_zero(a))
 382 DEFINE_BN_COMPARISONS(ne, !=, !BN_is_zero(a))
 383 DEFINE_BN_COMPARISONS(gt, >,  !BN_is_negative(a) && !BN_is_zero(a))
 384 DEFINE_BN_COMPARISONS(ge, >=, !BN_is_negative(a) || BN_is_zero(a))
 385 DEFINE_BN_COMPARISONS(lt, <,  BN_is_negative(a) && !BN_is_zero(a))
 386 DEFINE_BN_COMPARISONS(le, <=, BN_is_negative(a) || BN_is_zero(a))
 387
 388 int test_BN_eq_one(const char *file, int line, const char *s, const BIGNUM *a)
 389 {
 390     if (a != NULL && BN_is_one(a))
 391         return 1;
 392     test_fail_bignum_mono_message(NULL, file, line, "BIGNUM", s, "1", "==", a);
 393     return 0;
 394 }
 395
 396 int test_BN_odd(const char *file, int line, const char *s, const BIGNUM *a)
 397 {
 398     if (a != NULL && BN_is_odd(a))
 399         return 1;
 400     test_fail_bignum_mono_message(NULL, file, line, "BIGNUM", "ODD(", ")", s, a);
 401     return 0;
 402 }
 403
 404 int test_BN_even(const char *file, int line, const char *s, const BIGNUM *a)
 405 {
 406     if (a != NULL && !BN_is_odd(a))
 407         return 1;
 408     test_fail_bignum_mono_message(NULL, file, line, "BIGNUM", "EVEN(", ")", s,
 409                                   a);
 410     return 0;
 411 }
 412
 413 int test_BN_eq_word(const char *file, int line, const char *bns, const char *ws,
 414                     const BIGNUM *a, BN_ULONG w)
 415 {
 416     BIGNUM *bw;
 417
 418     if (a != NULL && BN_is_word(a, w))
 419         return 1;
 420     bw = BN_new();
 421     BN_set_word(bw, w);
 422     test_fail_bignum_message(NULL, file, line, "BIGNUM", bns, ws, "==", a, bw);
 423     BN_free(bw);
 424     return 0;
 425 }
 426
 427 int test_BN_abs_eq_word(const char *file, int line, const char *bns,
 428                         const char *ws, const BIGNUM *a, BN_ULONG w)
 429 {
 430     BIGNUM *bw, *aa;
 431
 432     if (a != NULL && BN_abs_is_word(a, w))
 433         return 1;
 434     bw = BN_new();
 435     aa = BN_dup(a);
 436     BN_set_negative(aa, 0);
 437     BN_set_word(bw, w);
 438     test_fail_bignum_message(NULL, file, line, "BIGNUM", bns, ws, "abs==",
 439                              aa, bw);
 440     BN_free(bw);
 441     BN_free(aa);
 442     return 0;
 443 }
 444
 445 static const char *print_time(const ASN1_TIME *t)
 446 {
 447     return t == NULL ? "<null>" : (const char *)ASN1_STRING_get0_data(t);
 448 }
 449
 450 #define DEFINE_TIME_T_COMPARISON(opname, op)                            \
 451     int test_time_t_ ## opname(const char *file, int line,              \
 452                                const char *s1, const char *s2,          \
 453                                const time_t t1, const time_t t2)        \
 454     {                                                                   \
 455         ASN1_TIME *at1 = ASN1_TIME_set(NULL, t1);                       \
 456         ASN1_TIME *at2 = ASN1_TIME_set(NULL, t2);                       \
 457         int r = at1 != NULL && at2 != NULL                              \
 458                 && ASN1_TIME_compare(at1, at2) op 0;                    \
 459         if (!r)                                                         \
 460             test_fail_message(NULL, file, line, "time_t", s1, s2, #op,  \
 461                               "[%s] compared to [%s]",                  \
 462                               print_time(at1), print_time(at2));        \
 463         ASN1_STRING_free(at1);                                          \
 464         ASN1_STRING_free(at2);                                          \
 465         return r;                                                       \
 466     }
 467 DEFINE_TIME_T_COMPARISON(eq, ==)
 468 DEFINE_TIME_T_COMPARISON(ne, !=)
 469 DEFINE_TIME_T_COMPARISON(gt, >)
 470 DEFINE_TIME_T_COMPARISON(ge, >=)
 471 DEFINE_TIME_T_COMPARISON(lt, <)
 472 DEFINE_TIME_T_COMPARISON(le, <=)