| /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| |
| #include "errno-util.h" |
| #include "stdio-util.h" |
| #include "string-util.h" |
| #include "tests.h" |
| |
| TEST(strerror_not_threadsafe) { |
| /* Just check that strerror really is not thread-safe. */ |
| log_info("strerror(%d) → %s", 200, strerror(200)); |
| log_info("strerror(%d) → %s", 201, strerror(201)); |
| log_info("strerror(%d) → %s", INT_MAX, strerror(INT_MAX)); |
| |
| log_info("strerror(%d), strerror(%d) → %p, %p", 200, 201, strerror(200), strerror(201)); |
| |
| /* This call is not allowed, because the first returned string becomes invalid when |
| * we call strerror the second time: |
| * |
| * log_info("strerror(%d), strerror(%d) → %s, %s", 200, 201, strerror(200), strerror(201)); |
| */ |
| } |
| |
| TEST(STRERROR) { |
| /* Just check that STRERROR really is thread-safe. */ |
| log_info("STRERROR(%d) → %s", 200, STRERROR(200)); |
| log_info("STRERROR(%d) → %s", 201, STRERROR(201)); |
| log_info("STRERROR(%d), STRERROR(%d) → %s, %s", 200, 201, STRERROR(200), STRERROR(201)); |
| |
| const char *a = STRERROR(200), *b = STRERROR(201); |
| assert_se(strstr(a, "200")); |
| assert_se(strstr(b, "201")); |
| |
| /* Check with negative values */ |
| assert_se(streq(a, STRERROR(-200))); |
| assert_se(streq(b, STRERROR(-201))); |
| |
| const char *c = STRERROR(INT_MAX); |
| char buf[DECIMAL_STR_MAX(int)]; |
| xsprintf(buf, "%d", INT_MAX); /* INT_MAX is hexadecimal, use printf to convert to decimal */ |
| log_info("STRERROR(%d) → %s", INT_MAX, c); |
| assert_se(strstr(c, buf)); |
| } |
| |
| TEST(STRERROR_OR_ELSE) { |
| log_info("STRERROR_OR_ELSE(0, \"EOF\") → %s", STRERROR_OR_EOF(0)); |
| log_info("STRERROR_OR_ELSE(EPERM, \"EOF\") → %s", STRERROR_OR_EOF(EPERM)); |
| log_info("STRERROR_OR_ELSE(-EPERM, \"EOF\") → %s", STRERROR_OR_EOF(-EPERM)); |
| } |
| |
| TEST(PROTECT_ERRNO) { |
| errno = 12; |
| { |
| PROTECT_ERRNO; |
| errno = 11; |
| } |
| assert_se(errno == 12); |
| } |
| |
| static void test_unprotect_errno_inner_function(void) { |
| PROTECT_ERRNO; |
| |
| errno = 2222; |
| } |
| |
| TEST(UNPROTECT_ERRNO) { |
| errno = 4711; |
| |
| PROTECT_ERRNO; |
| |
| errno = 815; |
| |
| UNPROTECT_ERRNO; |
| |
| assert_se(errno == 4711); |
| |
| test_unprotect_errno_inner_function(); |
| |
| assert_se(errno == 4711); |
| } |
| |
| DEFINE_TEST_MAIN(LOG_INFO); |