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Diffstat (limited to 'REORG.TODO/string/test-strncat.c')
| -rw-r--r-- | REORG.TODO/string/test-strncat.c | 322 |
1 files changed, 322 insertions, 0 deletions
diff --git a/REORG.TODO/string/test-strncat.c b/REORG.TODO/string/test-strncat.c new file mode 100644 index 0000000000..66d58e534d --- /dev/null +++ b/REORG.TODO/string/test-strncat.c @@ -0,0 +1,322 @@ +/* Test strncat functions. + Copyright (C) 2011-2017 Free Software Foundation, Inc. + Contributed by Intel Corporation. + + 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 + <http://www.gnu.org/licenses/>. */ + +#define TEST_MAIN +#ifndef WIDE +# define TEST_NAME "strncat" +#else +# define TEST_NAME "wcsncat" +#endif /* WIDE */ +#include "test-string.h" + +#ifndef WIDE +# define STRNCAT strncat +# define CHAR char +# define UCHAR unsigned char +# define SIMPLE_STRNCAT simple_strncat +# define STUPID_STRNCAT stupid_strncat +# define STRLEN strlen +# define MEMSET memset +# define MEMCPY memcpy +# define MEMCMP memcmp +# define BIG_CHAR CHAR_MAX +# define SMALL_CHAR 127 +#else +# include <wchar.h> +# define STRNCAT wcsncat +# define CHAR wchar_t +# define UCHAR wchar_t +# define SIMPLE_STRNCAT simple_wcsncat +# define STUPID_STRNCAT stupid_wcsncat +# define STRLEN wcslen +# define MEMSET wmemset +# define MEMCPY wmemcpy +# define MEMCMP wmemcmp +# define BIG_CHAR WCHAR_MAX +# define SMALL_CHAR 1273 +#endif /* WIDE */ + +typedef CHAR *(*proto_t) (CHAR *, const CHAR *, size_t); +CHAR *STUPID_STRNCAT (CHAR *, const CHAR *, size_t); +CHAR *SIMPLE_STRNCAT (CHAR *, const CHAR *, size_t); + +IMPL (STUPID_STRNCAT, 0) +IMPL (STRNCAT, 2) + +CHAR * +STUPID_STRNCAT (CHAR *dst, const CHAR *src, size_t n) +{ + CHAR *ret = dst; + while (*dst++ != '\0'); + --dst; + while (n--) + if ((*dst++ = *src++) == '\0') + return ret; + *dst = '\0'; + return ret; +} + +static void +do_one_test (impl_t *impl, CHAR *dst, const CHAR *src, size_t n) +{ + size_t k = STRLEN (dst); + if (CALL (impl, dst, src, n) != dst) + { + error (0, 0, "Wrong result in function %s %p != %p", impl->name, + CALL (impl, dst, src, n), dst); + ret = 1; + return; + } + + size_t len = STRLEN (src); + if (MEMCMP (dst + k, src, len + 1 > n ? n : len + 1) != 0) + { + error (0, 0, "Incorrect concatenation in function %s", + impl->name); + ret = 1; + return; + } + if (n < len && dst[k + n] != '\0') + { + error (0, 0, "There is no zero in the end of output string in %s", + impl->name); + ret = 1; + return; + } +} + +static void +do_test (size_t align1, size_t align2, size_t len1, size_t len2, + size_t n, int max_char) +{ + size_t i; + CHAR *s1, *s2; + + align1 &= 7; + if ((align1 + len1) * sizeof (CHAR) >= page_size) + return; + if ((align1 + n) * sizeof (CHAR) > page_size) + return; + align2 &= 7; + if ((align2 + len1 + len2) * sizeof (CHAR) >= page_size) + return; + if ((align2 + len1 + n) * sizeof (CHAR) > page_size) + return; + s1 = (CHAR *) (buf1) + align1; + s2 = (CHAR *) (buf2) + align2; + + for (i = 0; i < len1; ++i) + s1[i] = 32 + 23 * i % (max_char - 32); + s1[len1] = '\0'; + + for (i = 0; i < len2; i++) + s2[i] = 32 + 23 * i % (max_char - 32); + + FOR_EACH_IMPL (impl, 0) + { + s2[len2] = '\0'; + do_one_test (impl, s2, s1, n); + } +} + +static void +do_random_tests (void) +{ + size_t i, j, n, align1, align2, len1, len2, N; + UCHAR *p1 = (UCHAR *) (buf1 + page_size) - 512; + UCHAR *p2 = (UCHAR *) (buf2 + page_size) - 512; + UCHAR *p3 = (UCHAR *) buf1; + UCHAR *res; + fprintf (stdout, "Number of iterations in random test = %zd\n", + ITERATIONS); + for (n = 0; n < ITERATIONS; n++) + { + N = random () & 255; + align1 = random () & 31; + if (random () & 1) + align2 = random () & 31; + else + align2 = align1 + (random () & 24); + len1 = random () & 511; + if (len1 + align2 > 512) + len2 = random () & 7; + else + len2 = (512 - len1 - align2) * (random () & (1024 * 1024 - 1)) + / (1024 * 1024); + j = align1; + if (align2 + len2 > j) + j = align2 + len2; + if (len1 + j >= 511) + len1 = 510 - j - (random () & 7); + if (len1 >= 512) + len1 = 0; + if (align1 + len1 < 512 - 8) + { + j = 510 - align1 - len1 - (random () & 31); + if (j > 0 && j < 512) + align1 += j; + } + j = len1 + align1 + 64; + if (j > 512) + j = 512; + for (i = 0; i < j; i++) + { + if (i == len1 + align1) + p1[i] = 0; + else + { + p1[i] = random () & BIG_CHAR; + if (i >= align1 && i < len1 + align1 && !p1[i]) + p1[i] = (random () & SMALL_CHAR) + 3; + } + } + for (i = 0; i < len2; i++) + { + p3[i] = random () & BIG_CHAR; + if (!p3[i]) + p3[i] = (random () & SMALL_CHAR) + 3; + } + p3[len2] = 0; + + FOR_EACH_IMPL (impl, 1) + { + MEMSET (p2 - 64, '\1', align2 + 64); + MEMSET (p2 + align2 + len2 + 1, '\1', 512 - align2 - len2 - 1); + MEMCPY (p2 + align2, p3, len2 + 1); + res = (UCHAR *) CALL (impl, (CHAR *) (p2 + align2), + (CHAR *) (p1 + align1), N); + if (res != p2 + align2) + { + error (0, 0, "Iteration %zd - wrong result in function %s " + "(%zd, %zd, %zd, %zd, %zd) %p != %p", + n, impl->name, align1, align2, len1, len2, N, + res, p2 + align2); + ret = 1; + } + for (j = 0; j < align2 + 64; ++j) + { + if (p2[j - 64] != '\1') + { + error (0, 0, "Iteration %zd - garbage before dst, %s " + "%zd, %zd, %zd, %zd, %zd)", + n, impl->name, align1, align2, len1, len2, N); + ret = 1; + break; + } + } + if (MEMCMP (p2 + align2, p3, len2)) + { + error (0, 0, "Iteration %zd - garbage in string before, %s " + "(%zd, %zd, %zd, %zd, %zd)", + n, impl->name, align1, align2, len1, len2, N); + ret = 1; + } + + if ((len1 + 1) > N) + j = align2 + N + 1 + len2; + else + j = align2 + len1 + 1 + len2; + for (; j < 512; ++j) + { + if (p2[j] != '\1') + { + error (0, 0, "Iteration %zd - garbage after, %s " + "(%zd, %zd, %zd, %zd, %zd)", + n, impl->name, align1, align2, len1, len2, N); + ret = 1; + break; + } + } + if (len1 + 1 > N) + { + if (p2[align2 + N + len2] != '\0') + { + error (0, 0, "Iteration %zd - there is no zero at the " + "end of output string, %s (%zd, %zd, %zd, %zd, %zd)", + n, impl->name, align1, align2, len1, len2, N); + ret = 1; + } + } + if (MEMCMP (p1 + align1, p2 + align2 + len2, + (len1 + 1) > N ? N : len1 + 1)) + { + error (0, 0, "Iteration %zd - different strings, %s " + "(%zd, %zd, %zd, %zd, %zd)", + n, impl->name, align1, align2, len1, len2, N); + ret = 1; + } + } + } +} + +int +test_main (void) +{ + size_t i, n; + + test_init (); + + printf ("%28s", ""); + FOR_EACH_IMPL (impl, 0) + printf ("\t%s", impl->name); + putchar ('\n'); + + for (n = 2; n <= 2048; n*=4) + { + do_test (0, 2, 2, 2, n, SMALL_CHAR); + do_test (0, 0, 4, 4, n, SMALL_CHAR); + do_test (4, 0, 4, 4, n, BIG_CHAR); + do_test (0, 0, 8, 8, n, SMALL_CHAR); + do_test (0, 8, 8, 8, n, SMALL_CHAR); + + do_test (0, 2, 2, 2, SIZE_MAX, SMALL_CHAR); + do_test (0, 0, 4, 4, SIZE_MAX, SMALL_CHAR); + do_test (4, 0, 4, 4, SIZE_MAX, BIG_CHAR); + do_test (0, 0, 8, 8, SIZE_MAX, SMALL_CHAR); + do_test (0, 8, 8, 8, SIZE_MAX, SMALL_CHAR); + + for (i = 1; i < 8; ++i) + { + do_test (0, 0, 8 << i, 8 << i, n, SMALL_CHAR); + do_test (8 - i, 2 * i, 8 << i, 8 << i, n, SMALL_CHAR); + do_test (0, 0, 8 << i, 2 << i, n, SMALL_CHAR); + do_test (8 - i, 2 * i, 8 << i, 2 << i, n, SMALL_CHAR); + + do_test (0, 0, 8 << i, 8 << i, SIZE_MAX, SMALL_CHAR); + do_test (8 - i, 2 * i, 8 << i, 8 << i, SIZE_MAX, SMALL_CHAR); + do_test (0, 0, 8 << i, 2 << i, SIZE_MAX, SMALL_CHAR); + do_test (8 - i, 2 * i, 8 << i, 2 << i, SIZE_MAX, SMALL_CHAR); + } + + for (i = 1; i < 8; ++i) + { + do_test (i, 2 * i, 8 << i, 1, n, SMALL_CHAR); + do_test (2 * i, i, 8 << i, 1, n, BIG_CHAR); + do_test (i, i, 8 << i, 10, n, SMALL_CHAR); + + do_test (i, 2 * i, 8 << i, 1, SIZE_MAX, SMALL_CHAR); + do_test (2 * i, i, 8 << i, 1, SIZE_MAX, BIG_CHAR); + do_test (i, i, 8 << i, 10, SIZE_MAX, SMALL_CHAR); + } + } + + do_random_tests (); + return ret; +} + +#include <support/test-driver.c> |