From eaaad78db41724e5a18a42becb238bfc4e683998 Mon Sep 17 00:00:00 2001 From: Joe Simmons-Talbott Date: Fri, 21 Apr 2023 09:24:23 -0400 Subject: string: Add tests for strdup (BZ #30266) Copy strcpy tests for strdup. Covers some basic testcases with random strings. Add a zero-length string testcase. Reviewed-by: Adhemerval Zanella --- string/Makefile | 1 + string/test-strdup.c | 201 +++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 202 insertions(+) create mode 100644 string/test-strdup.c (limited to 'string') diff --git a/string/Makefile b/string/Makefile index c84b49aaa5..472e318aea 100644 --- a/string/Makefile +++ b/string/Makefile @@ -157,6 +157,7 @@ tests := \ test-strcmp \ test-strcpy \ test-strcspn \ + test-strdup \ test-strlen \ test-strncasecmp \ test-strncat \ diff --git a/string/test-strdup.c b/string/test-strdup.c new file mode 100644 index 0000000000..9378c7eaf0 --- /dev/null +++ b/string/test-strdup.c @@ -0,0 +1,201 @@ +/* Test and measure strdup functions. + Copyright (C) 2023 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include + +#ifdef WIDE +# include +# define CHAR wchar_t +# define sfmt "ls" +# define BIG_CHAR WCHAR_MAX +# define SMALL_CHAR 1273 +# define STRCMP wcscmp +# define MEMCMP wmemcmp +# define MEMSET wmemset +# define TCS TEST_COMPARE_STRING_WIDE +#else +# define CHAR char +# define sfmt "s" +# define BIG_CHAR CHAR_MAX +# define SMALL_CHAR 127 +# define STRCMP strcmp +# define MEMCMP memcmp +# define MEMSET memset +# define TCS TEST_COMPARE_STRING +#endif + +#ifndef STRDUP_RESULT +# define STRDUP_RESULT(dst, len) dst +# define TEST_MAIN +# ifndef WIDE +# define TEST_NAME "strdup" +# else +# define TEST_NAME "wcsdup" +# endif +# include "test-string.h" +# ifndef WIDE +# define STRDUP strdup +# else +# define STRDUP wcsdup +# endif +#endif + +typedef CHAR *(*proto_t) (const CHAR *); + +static void +do_zero_len_test (void) +{ + CHAR src[1] = { '\0' }; + CHAR *dst = STRDUP (src); + + TCS (dst, src); + free (dst); +} + +static void +do_one_test (const CHAR *src, + size_t len __attribute__((unused))) +{ + CHAR *dst = STRDUP (src); + + if (STRCMP (dst, src) != 0) + { + error (0, 0, + "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"", + TEST_NAME, dst, src); + ret = 1; + free (dst); + return; + } + free (dst); +} + +static void +do_test (size_t align1, size_t align2, size_t len, int max_char) +{ + size_t i; + CHAR *s1; +/* For wcsdup: align1 and align2 here mean alignment not in bytes, + but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t)) + len for wcschr here isn't in bytes but it's number of wchar_t symbols. */ + align1 &= 7; + if ((align1 + len) * sizeof (CHAR) >= page_size) + return; + + align2 &= 7; + if ((align2 + len) * sizeof (CHAR) >= page_size) + return; + + s1 = (CHAR *) (buf1) + align1; + + for (i = 0; i < len; i++) + s1[i] = 32 + 23 * i % (max_char - 32); + s1[len] = 0; + + do_one_test (s1, len); +} + +static void +do_random_tests (void) +{ + size_t i, j, n, align1, align2, len; + CHAR *p1 = (CHAR *)(buf1 + page_size) - 512; + CHAR *res; + + for (n = 0; n < ITERATIONS; n++) + { + /* align1 and align2 are expressed as wchar_t and not in bytes for wide + char test, and thus it will be equal to align times wchar_t size. + + For non wide version we need to check all alignments from 0 to 63 + since some assembly implementations have separate prolog for alignments + more 48. */ + + align1 = random () & (63 / sizeof (CHAR)); + if (random () & 1) + align2 = random () & (63 / sizeof (CHAR)); + else + align2 = align1 + (random () & 24); + len = random () & 511; + j = align1; + if (align2 > j) + j = align2; + if (len + j >= 511) + len = 510 - j - (random () & 7); + j = len + align1 + 64; + if (j > 512) + j = 512; + for (i = 0; i < j; i++) + { + if (i == len + align1) + p1[i] = 0; + else + { + p1[i] = random () & BIG_CHAR; + if (i >= align1 && i < len + align1 && !p1[i]) + p1[i] = (random () & SMALL_CHAR) + 3; + } + } + + res = STRDUP(p1 + align1); + TCS (res, (p1 + align1)); + free (res); + } +} + + +int +test_main (void) +{ + size_t i; + + test_init (); + + printf ("%23s", ""); + printf ("\t%s", TEST_NAME); + putchar ('\n'); + + for (i = 0; i < 16; ++i) + { + do_test (0, 0, i, SMALL_CHAR); + do_test (0, 0, i, BIG_CHAR); + do_test (0, i, i, SMALL_CHAR); + do_test (i, 0, i, BIG_CHAR); + } + + for (i = 1; i < 8; ++i) + { + do_test (0, 0, 8 << i, SMALL_CHAR); + do_test (8 - i, 2 * i, 8 << i, SMALL_CHAR); + } + + for (i = 1; i < 8; ++i) + { + do_test (i, 2 * i, 8 << i, SMALL_CHAR); + do_test (2 * i, i, 8 << i, BIG_CHAR); + do_test (i, i, 8 << i, SMALL_CHAR); + do_test (i, i, 8 << i, BIG_CHAR); + } + + do_zero_len_test (); + do_random_tests (); + + return ret; +} + +#include -- cgit 1.4.1