From: Bruno Haible Date: Wed, 19 Jun 2024 23:31:21 +0000 (+0200) Subject: vasnwprintf tests: Add test of %s directive with large arguments. X-Git-Url: https://gitweb.git.savannah.gnu.org/gitweb/?a=commitdiff_plain;h=9bc7bceef85fc2524fadb558389d8d5bba1bd5d9;p=gnulib.git vasnwprintf tests: Add test of %s directive with large arguments. * tests/test-vasnwprintf-big.c: New file, based on tests/test-vasnprintf-big.c. * modules/vasnwprintf-extra-tests: New file. * modules/vasnwprintf-tests (Depends-on): Depend on it. --- diff --git a/ChangeLog b/ChangeLog index 2218550af3..5b465a7eb7 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,11 @@ +2024-06-19 Bruno Haible + + vasnwprintf tests: Add test of %s directive with large arguments. + * tests/test-vasnwprintf-big.c: New file, based on + tests/test-vasnprintf-big.c. + * modules/vasnwprintf-extra-tests: New file. + * modules/vasnwprintf-tests (Depends-on): Depend on it. + 2024-06-19 Bruno Haible vasnprintf, u*-asnprintf tests: Adjust memory need. diff --git a/modules/vasnwprintf-extra-tests b/modules/vasnwprintf-extra-tests new file mode 100644 index 0000000000..325bc8fa98 --- /dev/null +++ b/modules/vasnwprintf-extra-tests @@ -0,0 +1,18 @@ +Status: +longrunning-test + +Files: +tests/test-vasnwprintf-big.c +tests/macros.h + +Depends-on: +stdbool +stdint +physmem + +configure.ac: +AC_CHECK_FUNCS_ONCE([setrlimit]) + +Makefile.am: +TESTS += test-vasnwprintf-big +check_PROGRAMS += test-vasnwprintf-big diff --git a/modules/vasnwprintf-tests b/modules/vasnwprintf-tests index 5eb8a67d0c..77969fe346 100644 --- a/modules/vasnwprintf-tests +++ b/modules/vasnwprintf-tests @@ -6,6 +6,7 @@ Depends-on: wcscmp wmemcmp wmemcpy +vasnwprintf-extra-tests configure.ac: diff --git a/tests/test-vasnwprintf-big.c b/tests/test-vasnwprintf-big.c new file mode 100644 index 0000000000..30f123f15f --- /dev/null +++ b/tests/test-vasnwprintf-big.c @@ -0,0 +1,206 @@ +/* Test of [v]asnwprintf() with big results. + Copyright (C) 2024 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +/* Written by Bruno Haible , 2024. */ + +#include + +#include "vasnwprintf.h" + +#include "physmem.h" + +/* Get INT_MAX. */ +#include + +/* Get PTRDIFF_MAX. */ +#include + +#include +#include +#include +#include + +#if HAVE_SETRLIMIT +# include +# include +# include +#endif + +#include "macros.h" + +int +main () +{ +#if PTRDIFF_MAX == INT_MAX + fputs ("Skipping test: ptrdiff_t is not 64-bits wide\n", stderr); + return 77; +#else + bool skipped = false; + /* Disable core files that would be huge. */ +# if HAVE_SETRLIMIT && defined RLIMIT_CORE + struct rlimit rl; + rl.rlim_cur = rl.rlim_max = 0; + setrlimit (RLIMIT_CORE, &rl); +# endif + /* The test below needs about 25 GiB of memory: + $ time /usr/bin/time -f "Max RSS: %M KiB" ./test-vasnwprintf-big + Max RSS: 26216204 KiB + real 4m22,540s + user 4m6,322s + sys 0m16,203s + 5 GiB for the inputs and up to 20 GiB for temporary output buffers. */ + double needed = 25.0 * 1024 * 1024 * 1024; + double avail = physmem_claimable (1.0); + printf ("memory needed = %g MiB, available = %g MiB\n", + needed / 1024 / 1024, avail / 1024 / 1024); + if (avail >= needed) + { + /* Note: The malloc() calls can fail, due to ulimit of RLIMIT_DATA. + For example, on OpenBSD 7.5, the soft limit is 1.0 GiB or 1.5 GiB, + and you need "ulimit -d 26214400". */ + + /* Verify that asnwprintf() can return a string of size > 4 GiB. */ + { + size_t n1 = 3 * (INT_MAX / 4) + 10; + size_t n2 = 3 * (INT_MAX / 4) + 20; + char *s1; + char *s2; + + s1 = (char *) malloc (n1 + 1); + if (s1 != NULL) + { + memset (s1, 'a', n1); + s1[n1] = '\0'; + + s2 = (char *) malloc (n2 + 1); + if (s2 != NULL) + { + memset (s2, 'b', n2); + s1[n1] = '\0'; + + size_t len; + wchar_t *s = asnwprintf (NULL, &len, L"x%sy%sz", s1, s2); + if (s == NULL) + { + ASSERT (errno == ENOMEM); + skipped = true; + } + else + { + ASSERT (wcslen (s) == len); + ASSERT (len == n1 + n2 + 3); + size_t i; + for (i = 0; i <= len; i++) + s[i] = (i == 0 ? 'x' : + i <= n1 ? 'a' : + i == n1 + 1 ? 'y' : + i <= n1 + n2 + 1 ? 'b' : + i == n1 + n2 + 2 ? 'z' : + '\0'); + free (s); + } + free (s2); + } + free (s1); + } + } + + /* Verify that asnwprintf() can take a string of size > 2 GiB, < 4 GiB + as argument. */ + { + size_t n1 = 3 * (size_t) (INT_MAX / 2) + 10; + char *s1; + + s1 = (char *) malloc (n1 + 1); + if (s1 != NULL) + { + memset (s1, 'a', n1); + s1[n1] = '\0'; + + size_t len; + wchar_t *s = asnwprintf (NULL, &len, L"x%sy", s1); + if (s == NULL) + { + ASSERT (errno == ENOMEM); + skipped = true; + } + else + { + ASSERT (wcslen (s) == len); + ASSERT (len == n1 + 2); + size_t i; + for (i = 0; i <= len; i++) + s[i] = (i == 0 ? 'x' : + i <= n1 ? 'a' : + i == n1 + 1 ? 'y' : + '\0'); + free (s); + } + free (s1); + } + } + + /* Verify that asnwprintf() can take a string of size > 4 GiB + as argument. */ + { + size_t n1 = 5 * (size_t) (INT_MAX / 2) + 10; + if (n1 > (size_t) INT_MAX) + { + char *s1; + + s1 = (char *) malloc (n1 + 1); + if (s1 != NULL) + { + memset (s1, 'a', n1); + s1[n1] = '\0'; + + size_t len; + wchar_t *s = asnwprintf (NULL, &len, L"x%sy", s1); + if (s == NULL) + { + ASSERT (errno == ENOMEM); + skipped = true; + } + else + { + ASSERT (wcslen (s) == len); + ASSERT (len == n1 + 2); + size_t i; + for (i = 0; i <= len; i++) + s[i] = (i == 0 ? 'x' : + i <= n1 ? 'a' : + i == n1 + 1 ? 'y' : + '\0'); + free (s); + } + free (s1); + } + } + } + } + else + skipped = true; + + if (test_exit_status != EXIT_SUCCESS) + return test_exit_status; + if (skipped) + { + fputs ("Skipping test: not enough memory available\n", stderr); + return 77; + } + return 0; +#endif +}