test/testutil.h

   1 /*
   2  * Copyright 2014-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (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 #ifndef HEADER_TESTUTIL_H
  11 # define HEADER_TESTUTIL_H
  12
  13 #include <stdarg.h>
  14
  15 #include <openssl/err.h>
  16 #include <openssl/e_os2.h>
  17
  18 /*-
  19  * Simple unit tests should implement register_tests().
  20  * To register tests, call ADD_TEST or ADD_ALL_TESTS:
  21  *
  22  * void register_tests(void)
  23  * {
  24  *     ADD_TEST(test_foo);
  25  *     ADD_ALL_TESTS(test_bar, num_test_bar);
  26  * }
  27  *
  28  * Tests that need to perform custom setup or read command-line arguments should
  29  * implement test_main():
  30  *
  31  * int test_main(int argc, char *argv[])
  32  * {
  33  *     int ret;
  34  *
  35  *     // Custom setup ...
  36  *
  37  *     ADD_TEST(test_foo);
  38  *     ADD_ALL_TESTS(test_bar, num_test_bar);
  39  *     // Add more tests ...
  40  *
  41  *     ret = run_tests(argv[0]);
  42  *
  43  *     // Custom teardown ...
  44  *
  45  *     return ret;
  46  * }
  47  */
  48
  49 /* Adds a simple test case. */
  50 # define ADD_TEST(test_function) add_test(#test_function, test_function)
  51
  52 /*
  53  * Simple parameterized tests. Calls test_function(idx) for each 0 <= idx < num.
  54  */
  55 # define ADD_ALL_TESTS(test_function, num) \
  56   add_all_tests(#test_function, test_function, num)
  57
  58 /*-
  59  * Test cases that share common setup should use the helper
  60  * SETUP_TEST_FIXTURE and EXECUTE_TEST macros for test case functions.
  61  *
  62  * SETUP_TEST_FIXTURE will call set_up() to create a new TEST_FIXTURE_TYPE
  63  * object called "fixture". It will also allocate the "result" variable used
  64  * by EXECUTE_TEST. set_up() should take a const char* specifying the test
  65  * case name and return a TEST_FIXTURE_TYPE by value.
  66  *
  67  * EXECUTE_TEST will pass fixture to execute_func() by value, call
  68  * tear_down(), and return the result of execute_func(). execute_func() should
  69  * take a TEST_FIXTURE_TYPE by value and return 1 on success and 0 on
  70  * failure.
  71  *
  72  * Unit tests can define their own SETUP_TEST_FIXTURE and EXECUTE_TEST
  73  * variations like so:
  74  *
  75  * #define SETUP_FOOBAR_TEST_FIXTURE()\
  76  *   SETUP_TEST_FIXTURE(FOOBAR_TEST_FIXTURE, set_up_foobar)
  77  *
  78  * #define EXECUTE_FOOBAR_TEST()\
  79  *   EXECUTE_TEST(execute_foobar, tear_down_foobar)
  80  *
  81  * Then test case functions can take the form:
  82  *
  83  * static int test_foobar_feature()
  84  *      {
  85  *      SETUP_FOOBAR_TEST_FIXTURE();
  86  *      [...set individual members of fixture...]
  87  *      EXECUTE_FOOBAR_TEST();
  88  *      }
  89  */
  90 # define SETUP_TEST_FIXTURE(TEST_FIXTURE_TYPE, set_up)\
  91     TEST_FIXTURE_TYPE fixture = set_up(TEST_CASE_NAME); \
  92     int result = 0
  93
  94 # define EXECUTE_TEST(execute_func, tear_down)\
  95         result = execute_func(fixture);\
  96         tear_down(fixture);\
  97         return result
  98
  99 /* Shorthand if tear_down does nothing. */
 100 # define EXECUTE_TEST_NO_TEARDOWN(execute_func)\
 101         result = execute_func(fixture);\
 102         return result
 103
 104 /*
 105  * TEST_CASE_NAME is defined as the name of the test case function where
 106  * possible; otherwise we get by with the file name and line number.
 107  */
 108 # if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L
 109 #  if defined(_MSC_VER)
 110 #   define TEST_CASE_NAME __FUNCTION__
 111 #  else
 112 #   define testutil_stringify_helper(s) #s
 113 #   define testutil_stringify(s) testutil_stringify_helper(s)
 114 #   define TEST_CASE_NAME __FILE__ ":" testutil_stringify(__LINE__)
 115 #  endif                        /* _MSC_VER */
 116 # else
 117 #  define TEST_CASE_NAME __func__
 118 # endif                         /* __STDC_VERSION__ */
 119
 120 /*
 121  * Internal helpers. Test programs shouldn't use these directly, but should
 122  * rather link to one of the helper main() methods.
 123  */
 124
 125 /* setup_test() should be called as the first thing in a test main(). */
 126 void setup_test(void);
 127 /*
 128  * finish_test() should be called as the last thing in a test main().
 129  * The result of run_tests() should be the input to finish_test().
 130  */
 131 __owur int finish_test(int ret);
 132
 133 void add_test(const char *test_case_name, int (*test_fn) ());
 134 void add_all_tests(const char *test_case_name, int (*test_fn)(int idx), int num);
 135 __owur int run_tests(const char *test_prog_name);
 136
 137 /*
 138  * Declarations for user defined functions
 139  */
 140 void register_tests(void);
 141 int test_main(int argc, char *argv[]);
 142
 143
 144 /*
 145  *  Test assumption verification helpers.
 146  */
 147
 148 #define PRINTF_FORMAT(a, b)
 149 #if defined(__GNUC__) && defined(__STDC_VERSION__)
 150   /*
 151    * Because we support the 'z' modifier, which made its appearance in C99,
 152    * we can't use __attribute__ with pre C99 dialects.
 153    */
 154 # if __STDC_VERSION__ >= 199901L
 155 #  undef PRINTF_FORMAT
 156 #  define PRINTF_FORMAT(a, b)   __attribute__ ((format(printf, a, b)))
 157 # endif
 158 #endif
 159
 160 #  define DECLARE_COMPARISON(type, name, opname)                        \
 161     int test_ ## name ## _ ## opname(const char *, int,                 \
 162                                      const char *, const char *,        \
 163                                      const type, const type);
 164
 165 # define DECLARE_COMPARISONS(type, name)                                \
 166     DECLARE_COMPARISON(type, name, eq)                                  \
 167     DECLARE_COMPARISON(type, name, ne)                                  \
 168     DECLARE_COMPARISON(type, name, lt)                                  \
 169     DECLARE_COMPARISON(type, name, le)                                  \
 170     DECLARE_COMPARISON(type, name, gt)                                  \
 171     DECLARE_COMPARISON(type, name, ge)
 172
 173 DECLARE_COMPARISONS(int, int)
 174 DECLARE_COMPARISONS(unsigned int, uint)
 175 DECLARE_COMPARISONS(char, char)
 176 DECLARE_COMPARISONS(unsigned char, uchar)
 177 DECLARE_COMPARISONS(long, long)
 178 DECLARE_COMPARISONS(unsigned long, ulong)
 179 DECLARE_COMPARISONS(size_t, size_t)
 180
 181 /*
 182  * Pointer comparisons against other pointers and null.
 183  * These functions return 1 if the test is true.
 184  * Otherwise, they return 0 and pretty-print diagnostics.
 185  * These should not be called directly, use the TEST_xxx macros below instead.
 186  */
 187 DECLARE_COMPARISON(void *, ptr, eq)
 188 DECLARE_COMPARISON(void *, ptr, ne)
 189 int test_ptr(const char *file, int line, const char *s, const void *p);
 190 int test_ptr_null(const char *file, int line, const char *s, const void *p);
 191
 192 /*
 193  * Equality tests for strings where NULL is a legitimate value.
 194  * These calls return 1 if the two passed strings compare true.
 195  * Otherwise, they return 0 and pretty-print diagnostics.
 196  * These should not be called directly, use the TEST_xxx macros below instead.
 197  */
 198 DECLARE_COMPARISON(char *, str, eq)
 199 DECLARE_COMPARISON(char *, str, ne)
 200
 201 /*
 202  * Same as above, but for strncmp.
 203  */
 204 int test_strn_eq(const char *file, int line, const char *, const char *,
 205                  const char *a, const char *b, size_t s);
 206 int test_strn_ne(const char *file, int line, const char *, const char *,
 207                  const char *a, const char *b, size_t s);
 208
 209 /*
 210  * Equality test for memory blocks where NULL is a legitimate value.
 211  * These calls return 1 if the two memory blocks compare true.
 212  * Otherwise, they return 0 and pretty-print diagnostics.
 213  * These should not be called directly, use the TEST_xxx macros below instead.
 214  */
 215 int test_mem_eq(const char *, int, const char *, const char *,
 216                 const void *, size_t, const void *, size_t);
 217 int test_mem_ne(const char *, int, const char *, const char *,
 218                 const void *, size_t, const void *, size_t);
 219
 220 /*
 221  * Check a boolean result for being true or false.
 222  * They return 1 if the condition is true (i.e. the value is non-zro).
 223  * Otherwise, they return 0 and pretty-prints diagnostics using |desc|.
 224  * These should not be called directly, use the TEST_xxx macros below instead.
 225  */
 226 int test_true(const char *file, int line, const char *s, int b);
 227 int test_false(const char *file, int line, const char *s, int b);
 228
 229 /*
 230  * Pretty print a failure message.
 231  * These should not be called directly, use the TEST_xxx macros below instead.
 232  */
 233 void test_error(const char *file, int line, const char *desc, ...)
 234     PRINTF_FORMAT(3, 4);
 235 void test_error_c90(const char *desc, ...) PRINTF_FORMAT(1, 2);
 236 void test_info(const char *file, int line, const char *desc, ...)
 237     PRINTF_FORMAT(3, 4);
 238 void test_info_c90(const char *desc, ...) PRINTF_FORMAT(1, 2);
 239
 240 /*
 241  * The following macros provide wrapper calls to the test functions with
 242  * a default description that indicates the file and line number of the error.
 243  *
 244  * The following macros guarantee to evaluate each argument exactly once.
 245  * This allows constructs such as: if(!TEST_ptr(ptr = OPENSSL_malloc(..)))
 246  * to produce better contextual output than:
 247  *      ptr = OPENSSL_malloc(..);
 248  *      if (!TEST_ptr(ptr))
 249  */
 250 # define TEST_int_eq(a, b)    test_int_eq(__FILE__, __LINE__, #a, #b, a, b)
 251 # define TEST_int_ne(a, b)    test_int_ne(__FILE__, __LINE__, #a, #b, a, b)
 252 # define TEST_int_lt(a, b)    test_int_lt(__FILE__, __LINE__, #a, #b, a, b)
 253 # define TEST_int_le(a, b)    test_int_le(__FILE__, __LINE__, #a, #b, a, b)
 254 # define TEST_int_gt(a, b)    test_int_gt(__FILE__, __LINE__, #a, #b, a, b)
 255 # define TEST_int_ge(a, b)    test_int_ge(__FILE__, __LINE__, #a, #b, a, b)
 256
 257 # define TEST_int_eq(a, b)    test_int_eq(__FILE__, __LINE__, #a, #b, a, b)
 258 # define TEST_int_ne(a, b)    test_int_ne(__FILE__, __LINE__, #a, #b, a, b)
 259 # define TEST_int_lt(a, b)    test_int_lt(__FILE__, __LINE__, #a, #b, a, b)
 260 # define TEST_int_le(a, b)    test_int_le(__FILE__, __LINE__, #a, #b, a, b)
 261 # define TEST_int_gt(a, b)    test_int_gt(__FILE__, __LINE__, #a, #b, a, b)
 262 # define TEST_int_ge(a, b)    test_int_ge(__FILE__, __LINE__, #a, #b, a, b)
 263
 264 # define TEST_uint_eq(a, b)   test_uint_eq(__FILE__, __LINE__, #a, #b, a, b)
 265 # define TEST_uint_ne(a, b)   test_uint_ne(__FILE__, __LINE__, #a, #b, a, b)
 266 # define TEST_uint_lt(a, b)   test_uint_lt(__FILE__, __LINE__, #a, #b, a, b)
 267 # define TEST_uint_le(a, b)   test_uint_le(__FILE__, __LINE__, #a, #b, a, b)
 268 # define TEST_uint_gt(a, b)   test_uint_gt(__FILE__, __LINE__, #a, #b, a, b)
 269 # define TEST_uint_ge(a, b)   test_uint_ge(__FILE__, __LINE__, #a, #b, a, b)
 270
 271 # define TEST_char_eq(a, b)   test_char_eq(__FILE__, __LINE__, #a, #b, a, b)
 272 # define TEST_char_ne(a, b)   test_char_ne(__FILE__, __LINE__, #a, #b, a, b)
 273 # define TEST_char_lt(a, b)   test_char_lt(__FILE__, __LINE__, #a, #b, a, b)
 274 # define TEST_char_le(a, b)   test_char_le(__FILE__, __LINE__, #a, #b, a, b)
 275 # define TEST_char_gt(a, b)   test_char_gt(__FILE__, __LINE__, #a, #b, a, b)
 276 # define TEST_char_ge(a, b)   test_char_ge(__FILE__, __LINE__, #a, #b, a, b)
 277
 278 # define TEST_uchar_eq(a, b)  test_uchar_eq(__FILE__, __LINE__, #a, #b, a, b)
 279 # define TEST_uchar_ne(a, b)  test_uchar_ne(__FILE__, __LINE__, #a, #b, a, b)
 280 # define TEST_uchar_lt(a, b)  test_uchar_lt(__FILE__, __LINE__, #a, #b, a, b)
 281 # define TEST_uchar_le(a, b)  test_uchar_le(__FILE__, __LINE__, #a, #b, a, b)
 282 # define TEST_uchar_gt(a, b)  test_uchar_gt(__FILE__, __LINE__, #a, #b, a, b)
 283 # define TEST_uchar_ge(a, b)  test_uchar_ge(__FILE__, __LINE__, #a, #b, a, b)
 284
 285 # define TEST_long_eq(a, b)   test_long_eq(__FILE__, __LINE__, #a, #b, a, b)
 286 # define TEST_long_ne(a, b)   test_long_ne(__FILE__, __LINE__, #a, #b, a, b)
 287 # define TEST_long_lt(a, b)   test_long_lt(__FILE__, __LINE__, #a, #b, a, b)
 288 # define TEST_long_le(a, b)   test_long_le(__FILE__, __LINE__, #a, #b, a, b)
 289 # define TEST_long_gt(a, b)   test_long_gt(__FILE__, __LINE__, #a, #b, a, b)
 290 # define TEST_long_ge(a, b)   test_long_ge(__FILE__, __LINE__, #a, #b, a, b)
 291
 292 # define TEST_ulong_eq(a, b)  test_ulong_eq(__FILE__, __LINE__, #a, #b, a, b)
 293 # define TEST_ulong_ne(a, b)  test_ulong_ne(__FILE__, __LINE__, #a, #b, a, b)
 294 # define TEST_ulong_lt(a, b)  test_ulong_lt(__FILE__, __LINE__, #a, #b, a, b)
 295 # define TEST_ulong_le(a, b)  test_ulong_le(__FILE__, __LINE__, #a, #b, a, b)
 296 # define TEST_ulong_gt(a, b)  test_ulong_gt(__FILE__, __LINE__, #a, #b, a, b)
 297 # define TEST_ulong_ge(a, b)  test_ulong_ge(__FILE__, __LINE__, #a, #b, a, b)
 298
 299 # define TEST_size_t_eq(a, b) test_size_t_eq(__FILE__, __LINE__, #a, #b, a, b)
 300 # define TEST_size_t_ne(a, b) test_size_t_ne(__FILE__, __LINE__, #a, #b, a, b)
 301 # define TEST_size_t_lt(a, b) test_size_t_lt(__FILE__, __LINE__, #a, #b, a, b)
 302 # define TEST_size_t_le(a, b) test_size_t_le(__FILE__, __LINE__, #a, #b, a, b)
 303 # define TEST_size_t_gt(a, b) test_size_t_gt(__FILE__, __LINE__, #a, #b, a, b)
 304 # define TEST_size_t_ge(a, b) test_size_t_ge(__FILE__, __LINE__, #a, #b, a, b)
 305
 306 # define TEST_ptr_eq(a, b)    test_ptr_eq(__FILE__, __LINE__, #a, #b, a, b)
 307 # define TEST_ptr_ne(a, b)    test_ptr_ne(__FILE__, __LINE__, #a, #b, a, b)
 308 # define TEST_ptr(a)          test_ptr(__FILE__, __LINE__, #a, a)
 309 # define TEST_ptr_null(a)     test_ptr_null(__FILE__, __LINE__, #a, a)
 310
 311 # define TEST_str_eq(a, b)    test_str_eq(__FILE__, __LINE__, #a, #b, a, b)
 312 # define TEST_str_ne(a, b)    test_str_ne(__FILE__, __LINE__, #a, #b, a, b)
 313 # define TEST_strn_eq(a, b, n) test_strn_eq(__FILE__, __LINE__, #a, #b, a, b, n)
 314 # define TEST_strn_ne(a, b, n) test_strn_ne(__FILE__, __LINE__, #a, #b, a, b, n)
 315
 316 # define TEST_mem_eq(a, m, b, n) test_mem_eq(__FILE__, __LINE__, #a, #b, a, m, b, n)
 317 # define TEST_mem_ne(a, m, b, n) test_mem_ne(__FILE__, __LINE__, #a, #b, a, m, b, n)
 318
 319 # define TEST_true(a)         test_true(__FILE__, __LINE__, #a, (a) != 0)
 320 # define TEST_false(a)        test_false(__FILE__, __LINE__, #a, (a) != 0)
 321
 322 /*
 323  * TEST_error(desc, ...) prints an informative error message in the standard
 324  * format.  |desc| is a printf format string.
 325  */
 326 # if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L
 327 #  define TEST_error         test_error_c90
 328 #  define TEST_info          test_info_c90
 329 # else
 330 #  define TEST_error(...)    test_error(__FILE__, __LINE__, __VA_ARGS__)
 331 #  define TEST_info(...)     test_info(__FILE__, __LINE__, __VA_ARGS__)
 332 # endif
 333
 334 /*
 335  * For "impossible" conditions such as malloc failures or bugs in test code,
 336  * where continuing the test would be meaningless. Note that OPENSSL_assert
 337  * is fatal, and is never compiled out.
 338  */
 339 # define TEST_check(condition)                  \
 340     do {                                        \
 341         if (!(condition)) {                     \
 342             ERR_print_errors_fp(stderr);        \
 343             OPENSSL_assert(!#condition);        \
 344         }                                       \
 345     } while (0)
 346 #endif                          /* HEADER_TESTUTIL_H */
 347
 348
 349 /*
 350  * The basic I/O functions used by the test framework.  These can be
 351  * overriden when needed. Note that if one is, then all must be.
 352  */
 353 void test_open_streams(void);
 354 void test_close_streams(void);
 355 /* The following ALL return the number of characters written */
 356 int test_puts_stdout(const char *str);
 357 int test_puts_stderr(const char *str);
 358 int test_vprintf_stdout(const char *fmt, va_list ap);
 359 int test_vprintf_stderr(const char *fmt, va_list ap);
 360 /* These return failure or success */
 361 int test_flush_stdout(void);
 362 int test_flush_stderr(void);
 363
 364 extern BIO *bio_out;
 365 extern BIO *bio_err;