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Diffstat (limited to 'test/string/string.c')
| -rw-r--r-- | test/string/string.c | 993 |
1 files changed, 993 insertions, 0 deletions
diff --git a/test/string/string.c b/test/string/string.c new file mode 100644 index 000000000..c59262717 --- /dev/null +++ b/test/string/string.c @@ -0,0 +1,993 @@ +/* Tester for string functions. + Copyright (C) 1995, 1996, 1997, 1998, 1999 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* Make sure we don't test the optimized inline functions if we want to + test the real implementation. */ +#undef __USE_STRING_INLINES + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <strings.h> +#include <fcntl.h> + +#ifndef HAVE_GNU_LD +#define _sys_nerr sys_nerr +#define _sys_errlist sys_errlist +#endif + +#define STREQ(a, b) (strcmp((a), (b)) == 0) + +const char *it = "<UNSET>"; /* Routine name for message routines. */ +size_t errors = 0; + +/* Complain if condition is not true. */ +void +check (int thing, int number) +{ + if (!thing) + { + printf("%s flunked test %d\n", it, number); + ++errors; + } +} + +/* Complain if first two args don't strcmp as equal. */ +void +equal (const char *a, const char *b, int number) +{ + check(a != NULL && b != NULL && (strcmp(a, b)==0), number); +} + +char one[50]; +char two[50]; +char *cp; + +void +test_strcmp (void) +{ + it = "strcmp"; + check (strcmp ("", "") == 0, 1); /* Trivial case. */ + check (strcmp ("a", "a") == 0, 2); /* Identity. */ + check (strcmp ("abc", "abc") == 0, 3); /* Multicharacter. */ + check (strcmp ("abc", "abcd") < 0, 4); /* Length mismatches. */ + check (strcmp ("abcd", "abc") > 0, 5); + check (strcmp ("abcd", "abce") < 0, 6); /* Honest miscompares. */ + check (strcmp ("abce", "abcd") > 0, 7); + check (strcmp ("a\203", "a") > 0, 8); /* Tricky if char signed. */ + check (strcmp ("a\203", "a\003") > 0, 9); + + { + char buf1[0x40], buf2[0x40]; + int i, j; + for (i=0; i < 0x10; i++) + for (j = 0; j < 0x10; j++) + { + int k; + for (k = 0; k < 0x3f; k++) + { + buf1[j] = '0' ^ (k & 4); + buf2[j] = '4' ^ (k & 4); + } + buf1[i] = buf1[0x3f] = 0; + buf2[j] = buf2[0x3f] = 0; + for (k = 0; k < 0xf; k++) + { + int cnum = 0x10+0x10*k+0x100*j+0x1000*i; + check (strcmp (buf1+i,buf2+j) == 0, cnum); + buf1[i+k] = 'A' + i + k; + buf1[i+k+1] = 0; + check (strcmp (buf1+i,buf2+j) > 0, cnum+1); + check (strcmp (buf2+j,buf1+i) < 0, cnum+2); + buf2[j+k] = 'B' + i + k; + buf2[j+k+1] = 0; + check (strcmp (buf1+i,buf2+j) < 0, cnum+3); + check (strcmp (buf2+j,buf1+i) > 0, cnum+4); + buf2[j+k] = 'A' + i + k; + buf1[i] = 'A' + i + 0x80; + check (strcmp (buf1+i,buf2+j) > 0, cnum+5); + check (strcmp (buf2+j,buf1+i) < 0, cnum+6); + buf1[i] = 'A' + i; + } + } + } +} + +void +test_strcpy (void) +{ + int i; + it = "strcpy"; + check (strcpy (one, "abcd") == one, 1); /* Returned value. */ + equal (one, "abcd", 2); /* Basic test. */ + + (void) strcpy (one, "x"); + equal (one, "x", 3); /* Writeover. */ + equal (one+2, "cd", 4); /* Wrote too much? */ + + (void) strcpy (two, "hi there"); + (void) strcpy (one, two); + equal (one, "hi there", 5); /* Basic test encore. */ + equal (two, "hi there", 6); /* Stomped on source? */ + + (void) strcpy (one, ""); + equal (one, "", 7); /* Boundary condition. */ + + for (i = 0; i < 16; i++) + { + (void) strcpy (one + i, "hi there"); /* Unaligned destination. */ + equal (one + i, "hi there", 8 + (i * 2)); + (void) strcpy (two, one + i); /* Unaligned source. */ + equal (two, "hi there", 9 + (i * 2)); + } +} + +void +test_strcat (void) +{ + it = "strcat"; + (void) strcpy (one, "ijk"); + check (strcat (one, "lmn") == one, 1); /* Returned value. */ + equal (one, "ijklmn", 2); /* Basic test. */ + + (void) strcpy (one, "x"); + (void) strcat (one, "yz"); + equal (one, "xyz", 3); /* Writeover. */ + equal (one+4, "mn", 4); /* Wrote too much? */ + + (void) strcpy (one, "gh"); + (void) strcpy (two, "ef"); + (void) strcat (one, two); + equal (one, "ghef", 5); /* Basic test encore. */ + equal (two, "ef", 6); /* Stomped on source? */ + + (void) strcpy (one, ""); + (void) strcat (one, ""); + equal (one, "", 7); /* Boundary conditions. */ + (void) strcpy (one, "ab"); + (void) strcat (one, ""); + equal (one, "ab", 8); + (void) strcpy (one, ""); + (void) strcat (one, "cd"); + equal (one, "cd", 9); +} + +void +test_strncat (void) +{ + /* First test it as strcat, with big counts, then test the count + mechanism. */ + it = "strncat"; + (void) strcpy (one, "ijk"); + check (strncat (one, "lmn", 99) == one, 1); /* Returned value. */ + equal (one, "ijklmn", 2); /* Basic test. */ + + (void) strcpy (one, "x"); + (void) strncat (one, "yz", 99); + equal (one, "xyz", 3); /* Writeover. */ + equal (one+4, "mn", 4); /* Wrote too much? */ + + (void) strcpy (one, "gh"); + (void) strcpy (two, "ef"); + (void) strncat (one, two, 99); + equal (one, "ghef", 5); /* Basic test encore. */ + equal (two, "ef", 6); /* Stomped on source? */ + + (void) strcpy (one, ""); + (void) strncat (one, "", 99); + equal (one, "", 7); /* Boundary conditions. */ + (void) strcpy (one, "ab"); + (void) strncat (one, "", 99); + equal (one, "ab", 8); + (void) strcpy (one, ""); + (void) strncat (one, "cd", 99); + equal (one, "cd", 9); + + (void) strcpy (one, "ab"); + (void) strncat (one, "cdef", 2); + equal (one, "abcd", 10); /* Count-limited. */ + + (void) strncat (one, "gh", 0); + equal (one, "abcd", 11); /* Zero count. */ + + (void) strncat (one, "gh", 2); + equal (one, "abcdgh", 12); /* Count and length equal. */ +} + +void +test_strncmp (void) +{ + /* First test as strcmp with big counts, then test count code. */ + it = "strncmp"; + check (strncmp ("", "", 99) == 0, 1); /* Trivial case. */ + check (strncmp ("a", "a", 99) == 0, 2); /* Identity. */ + check (strncmp ("abc", "abc", 99) == 0, 3); /* Multicharacter. */ + check (strncmp ("abc", "abcd", 99) < 0, 4); /* Length unequal. */ + check (strncmp ("abcd", "abc", 99) > 0, 5); + check (strncmp ("abcd", "abce", 99) < 0, 6); /* Honestly unequal. */ + check (strncmp ("abce", "abcd", 99) > 0, 7); + check (strncmp ("a\203", "a", 2) > 0, 8); /* Tricky if '\203' < 0 */ + check (strncmp ("a\203", "a\003", 2) > 0, 9); + check (strncmp ("abce", "abcd", 3) == 0, 10); /* Count limited. */ + check (strncmp ("abce", "abc", 3) == 0, 11); /* Count == length. */ + check (strncmp ("abcd", "abce", 4) < 0, 12); /* Nudging limit. */ + check (strncmp ("abc", "def", 0) == 0, 13); /* Zero count. */ +} + +void +test_strncpy (void) +{ + /* Testing is a bit different because of odd semantics. */ + it = "strncpy"; + check (strncpy (one, "abc", 4) == one, 1); /* Returned value. */ + equal (one, "abc", 2); /* Did the copy go right? */ + + (void) strcpy (one, "abcdefgh"); + (void) strncpy (one, "xyz", 2); + equal (one, "xycdefgh", 3); /* Copy cut by count. */ + + (void) strcpy (one, "abcdefgh"); + (void) strncpy (one, "xyz", 3); /* Copy cut just before NUL. */ + equal (one, "xyzdefgh", 4); + + (void) strcpy (one, "abcdefgh"); + (void) strncpy (one, "xyz", 4); /* Copy just includes NUL. */ + equal (one, "xyz", 5); + equal (one+4, "efgh", 6); /* Wrote too much? */ + + (void) strcpy (one, "abcdefgh"); + (void) strncpy (one, "xyz", 5); /* Copy includes padding. */ + equal (one, "xyz", 7); + equal (one+4, "", 8); + equal (one+5, "fgh", 9); + + (void) strcpy (one, "abc"); + (void) strncpy (one, "xyz", 0); /* Zero-length copy. */ + equal (one, "abc", 10); + + (void) strncpy (one, "", 2); /* Zero-length source. */ + equal (one, "", 11); + equal (one+1, "", 12); + equal (one+2, "c", 13); + + (void) strcpy (one, "hi there"); + (void) strncpy (two, one, 9); + equal (two, "hi there", 14); /* Just paranoia. */ + equal (one, "hi there", 15); /* Stomped on source? */ +} + +void +test_strlen (void) +{ + it = "strlen"; + check (strlen ("") == 0, 1); /* Empty. */ + check (strlen ("a") == 1, 2); /* Single char. */ + check (strlen ("abcd") == 4, 3); /* Multiple chars. */ + { + char buf[4096]; + int i; + char *p; + for (i=0; i < 0x100; i++) + { + p = (char *) ((unsigned long int)(buf + 0xff) & ~0xff) + i; + strcpy (p, "OK"); + strcpy (p+3, "BAD/WRONG"); + check (strlen (p) == 2, 4+i); + } + } +} + +void +test_strchr (void) +{ + it = "strchr"; + check (strchr ("abcd", 'z') == NULL, 1); /* Not found. */ + (void) strcpy (one, "abcd"); + check (strchr (one, 'c') == one+2, 2); /* Basic test. */ + check (strchr (one, 'd') == one+3, 3); /* End of string. */ + check (strchr (one, 'a') == one, 4); /* Beginning. */ + check (strchr (one, '\0') == one+4, 5); /* Finding NUL. */ + (void) strcpy (one, "ababa"); + check (strchr (one, 'b') == one+1, 6); /* Finding first. */ + (void) strcpy (one, ""); + check (strchr (one, 'b') == NULL, 7); /* Empty string. */ + check (strchr (one, '\0') == one, 8); /* NUL in empty string. */ + { + char buf[4096]; + int i; + char *p; + for (i=0; i < 0x100; i++) + { + p = (char *) ((unsigned long int) (buf + 0xff) & ~0xff) + i; + strcpy (p, "OK"); + strcpy (p+3, "BAD/WRONG"); + check (strchr (p, '/') == NULL, 9+i); + } + } +} + +void +test_index (void) +{ + it = "index"; + check (index ("abcd", 'z') == NULL, 1); /* Not found. */ + (void) strcpy (one, "abcd"); + check (index (one, 'c') == one+2, 2); /* Basic test. */ + check (index (one, 'd') == one+3, 3); /* End of string. */ + check (index (one, 'a') == one, 4); /* Beginning. */ + check (index (one, '\0') == one+4, 5); /* Finding NUL. */ + (void) strcpy (one, "ababa"); + check (index (one, 'b') == one+1, 6); /* Finding first. */ + (void) strcpy (one, ""); + check (index (one, 'b') == NULL, 7); /* Empty string. */ + check (index (one, '\0') == one, 8); /* NUL in empty string. */ +} + +void +test_strrchr (void) +{ + it = "strrchr"; + check (strrchr ("abcd", 'z') == NULL, 1); /* Not found. */ + (void) strcpy (one, "abcd"); + check (strrchr (one, 'c') == one+2, 2); /* Basic test. */ + check (strrchr (one, 'd') == one+3, 3); /* End of string. */ + check (strrchr (one, 'a') == one, 4); /* Beginning. */ + check (strrchr (one, '\0') == one+4, 5); /* Finding NUL. */ + (void) strcpy (one, "ababa"); + check (strrchr (one, 'b') == one+3, 6); /* Finding last. */ + (void) strcpy (one, ""); + check (strrchr (one, 'b') == NULL, 7); /* Empty string. */ + check (strrchr (one, '\0') == one, 8); /* NUL in empty string. */ + { + char buf[4096]; + int i; + char *p; + for (i=0; i < 0x100; i++) + { + p = (char *) ((unsigned long int) (buf + 0xff) & ~0xff) + i; + strcpy (p, "OK"); + strcpy (p+3, "BAD/WRONG"); + check (strrchr (p, '/') == NULL, 9+i); + } + } +} + +void +test_rindex (void) +{ + it = "rindex"; + check (rindex ("abcd", 'z') == NULL, 1); /* Not found. */ + (void) strcpy (one, "abcd"); + check (rindex (one, 'c') == one+2, 2); /* Basic test. */ + check (rindex (one, 'd') == one+3, 3); /* End of string. */ + check (rindex (one, 'a') == one, 4); /* Beginning. */ + check (rindex (one, '\0') == one+4, 5); /* Finding NUL. */ + (void) strcpy (one, "ababa"); + check (rindex (one, 'b') == one+3, 6); /* Finding last. */ + (void) strcpy (one, ""); + check (rindex (one, 'b') == NULL, 7); /* Empty string. */ + check (rindex (one, '\0') == one, 8); /* NUL in empty string. */ +} + +void +test_strpbrk (void) +{ + it = "strpbrk"; + check(strpbrk("abcd", "z") == NULL, 1); /* Not found. */ + (void) strcpy(one, "abcd"); + check(strpbrk(one, "c") == one+2, 2); /* Basic test. */ + check(strpbrk(one, "d") == one+3, 3); /* End of string. */ + check(strpbrk(one, "a") == one, 4); /* Beginning. */ + check(strpbrk(one, "") == NULL, 5); /* Empty search list. */ + check(strpbrk(one, "cb") == one+1, 6); /* Multiple search. */ + (void) strcpy(one, "abcabdea"); + check(strpbrk(one, "b") == one+1, 7); /* Finding first. */ + check(strpbrk(one, "cb") == one+1, 8); /* With multiple search. */ + check(strpbrk(one, "db") == one+1, 9); /* Another variant. */ + (void) strcpy(one, ""); + check(strpbrk(one, "bc") == NULL, 10); /* Empty string. */ + (void) strcpy(one, ""); + check(strpbrk(one, "bcd") == NULL, 11); /* Empty string. */ + (void) strcpy(one, ""); + check(strpbrk(one, "bcde") == NULL, 12); /* Empty string. */ + check(strpbrk(one, "") == NULL, 13); /* Both strings empty. */ + (void) strcpy(one, "abcabdea"); + check(strpbrk(one, "befg") == one+1, 14); /* Finding first. */ + check(strpbrk(one, "cbr") == one+1, 15); /* With multiple search. */ + check(strpbrk(one, "db") == one+1, 16); /* Another variant. */ + check(strpbrk(one, "efgh") == one+6, 17); /* And yet another. */ +} + +void +test_strstr (void) +{ + it = "strstr"; + check(strstr("abcd", "z") == NULL, 1); /* Not found. */ + check(strstr("abcd", "abx") == NULL, 2); /* Dead end. */ + (void) strcpy(one, "abcd"); + check(strstr(one, "c") == one+2, 3); /* Basic test. */ + check(strstr(one, "bc") == one+1, 4); /* Multichar. */ + check(strstr(one, "d") == one+3, 5); /* End of string. */ + check(strstr(one, "cd") == one+2, 6); /* Tail of string. */ + check(strstr(one, "abc") == one, 7); /* Beginning. */ + check(strstr(one, "abcd") == one, 8); /* Exact match. */ + check(strstr(one, "abcde") == NULL, 9); /* Too long. */ + check(strstr(one, "de") == NULL, 10); /* Past end. */ + check(strstr(one, "") == one, 11); /* Finding empty. */ + (void) strcpy(one, "ababa"); + check(strstr(one, "ba") == one+1, 12); /* Finding first. */ + (void) strcpy(one, ""); + check(strstr(one, "b") == NULL, 13); /* Empty string. */ + check(strstr(one, "") == one, 14); /* Empty in empty string. */ + (void) strcpy(one, "bcbca"); + check(strstr(one, "bca") == one+2, 15); /* False start. */ + (void) strcpy(one, "bbbcabbca"); + check(strstr(one, "bbca") == one+1, 16); /* With overlap. */ +} + +void +test_strspn (void) +{ + it = "strspn"; + check(strspn("abcba", "abc") == 5, 1); /* Whole string. */ + check(strspn("abcba", "ab") == 2, 2); /* Partial. */ + check(strspn("abc", "qx") == 0, 3); /* None. */ + check(strspn("", "ab") == 0, 4); /* Null string. */ + check(strspn("abc", "") == 0, 5); /* Null search list. */ +} + +void +test_strcspn (void) +{ + it = "strcspn"; + check(strcspn("abcba", "qx") == 5, 1); /* Whole string. */ + check(strcspn("abcba", "cx") == 2, 2); /* Partial. */ + check(strcspn("abc", "abc") == 0, 3); /* None. */ + check(strcspn("", "ab") == 0, 4); /* Null string. */ + check(strcspn("abc", "") == 3, 5); /* Null search list. */ +} + +void +test_strtok (void) +{ + it = "strtok"; + (void) strcpy(one, "first, second, third"); + equal(strtok(one, ", "), "first", 1); /* Basic test. */ + equal(one, "first", 2); + equal(strtok((char *)NULL, ", "), "second", 3); + equal(strtok((char *)NULL, ", "), "third", 4); + check(strtok((char *)NULL, ", ") == NULL, 5); + (void) strcpy(one, ", first, "); + equal(strtok(one, ", "), "first", 6); /* Extra delims, 1 tok. */ + check(strtok((char *)NULL, ", ") == NULL, 7); + (void) strcpy(one, "1a, 1b; 2a, 2b"); + equal(strtok(one, ", "), "1a", 8); /* Changing delim lists. */ + equal(strtok((char *)NULL, "; "), "1b", 9); + equal(strtok((char *)NULL, ", "), "2a", 10); + (void) strcpy(two, "x-y"); + equal(strtok(two, "-"), "x", 11); /* New string before done. */ + equal(strtok((char *)NULL, "-"), "y", 12); + check(strtok((char *)NULL, "-") == NULL, 13); + (void) strcpy(one, "a,b, c,, ,d"); + equal(strtok(one, ", "), "a", 14); /* Different separators. */ + equal(strtok((char *)NULL, ", "), "b", 15); + equal(strtok((char *)NULL, " ,"), "c", 16); /* Permute list too. */ + equal(strtok((char *)NULL, " ,"), "d", 17); + check(strtok((char *)NULL, ", ") == NULL, 18); + check(strtok((char *)NULL, ", ") == NULL, 19); /* Persistence. */ + (void) strcpy(one, ", "); + check(strtok(one, ", ") == NULL, 20); /* No tokens. */ + (void) strcpy(one, ""); + check(strtok(one, ", ") == NULL, 21); /* Empty string. */ + (void) strcpy(one, "abc"); + equal(strtok(one, ", "), "abc", 22); /* No delimiters. */ + check(strtok((char *)NULL, ", ") == NULL, 23); + (void) strcpy(one, "abc"); + equal(strtok(one, ""), "abc", 24); /* Empty delimiter list. */ + check(strtok((char *)NULL, "") == NULL, 25); + (void) strcpy(one, "abcdefgh"); + (void) strcpy(one, "a,b,c"); + equal(strtok(one, ","), "a", 26); /* Basics again... */ + equal(strtok((char *)NULL, ","), "b", 27); + equal(strtok((char *)NULL, ","), "c", 28); + check(strtok((char *)NULL, ",") == NULL, 29); + equal(one+6, "gh", 30); /* Stomped past end? */ + equal(one, "a", 31); /* Stomped old tokens? */ + equal(one+2, "b", 32); + equal(one+4, "c", 33); +} + +void +test_strsep (void) +{ + it = "strsep"; + cp = strcpy(one, "first, second, third"); + equal(strsep(&cp, ", "), "first", 1); /* Basic test. */ + equal(one, "first", 2); + equal(strsep(&cp, ", "), "", 3); + equal(strsep(&cp, ", "), "second", 4); + equal(strsep(&cp, ", "), "", 5); + equal(strsep(&cp, ", "), "third", 6); + check(strsep(&cp, ", ") == NULL, 7); + cp = strcpy(one, ", first, "); + equal(strsep(&cp, ", "), "", 8); + equal(strsep(&cp, ", "), "", 9); + equal(strsep(&cp, ", "), "first", 10); /* Extra delims, 1 tok. */ + equal(strsep(&cp, ", "), "", 11); + equal(strsep(&cp, ", "), "", 12); + check(strsep(&cp, ", ") == NULL, 13); + cp = strcpy(one, "1a, 1b; 2a, 2b"); + equal(strsep(&cp, ", "), "1a", 14); /* Changing delim lists. */ + equal(strsep(&cp, ", "), "", 15); + equal(strsep(&cp, "; "), "1b", 16); + equal(strsep(&cp, ", "), "", 17); + equal(strsep(&cp, ", "), "2a", 18); + cp = strcpy(two, "x-y"); + equal(strsep(&cp, "-"), "x", 19); /* New string before done. */ + equal(strsep(&cp, "-"), "y", 20); + check(strsep(&cp, "-") == NULL, 21); + cp = strcpy(one, "a,b, c,, ,d "); + equal(strsep(&cp, ", "), "a", 22); /* Different separators. */ + equal(strsep(&cp, ", "), "b", 23); + equal(strsep(&cp, " ,"), "", 24); + equal(strsep(&cp, " ,"), "c", 25); /* Permute list too. */ + equal(strsep(&cp, " ,"), "", 26); + equal(strsep(&cp, " ,"), "", 27); + equal(strsep(&cp, " ,"), "", 28); + equal(strsep(&cp, " ,"), "d", 29); + equal(strsep(&cp, " ,"), "", 30); + check(strsep(&cp, ", ") == NULL, 31); + check(strsep(&cp, ", ") == NULL, 32); /* Persistence. */ + cp = strcpy(one, ", "); + equal(strsep(&cp, ", "), "", 33); + equal(strsep(&cp, ", "), "", 34); + equal(strsep(&cp, ", "), "", 35); + check(strsep(&cp, ", ") == NULL, 36); /* No tokens. */ + cp = strcpy(one, ""); + equal(strsep(&cp, ", "), "", 37); + check(strsep(&cp, ", ") == NULL, 38); /* Empty string. */ + cp = strcpy(one, "abc"); + equal(strsep(&cp, ", "), "abc", 39); /* No delimiters. */ + check(strsep(&cp, ", ") == NULL, 40); + cp = strcpy(one, "abc"); + equal(strsep(&cp, ""), "abc", 41); /* Empty delimiter list. */ + check(strsep(&cp, "") == NULL, 42); + (void) strcpy(one, "abcdefgh"); + cp = strcpy(one, "a,b,c"); + equal(strsep(&cp, ","), "a", 43); /* Basics again... */ + equal(strsep(&cp, ","), "b", 44); + equal(strsep(&cp, ","), "c", 45); + check(strsep(&cp, ",") == NULL, 46); + equal(one+6, "gh", 47); /* Stomped past end? */ + equal(one, "a", 48); /* Stomped old tokens? */ + equal(one+2, "b", 49); + equal(one+4, "c", 50); + + { + char text[] = "This,is,a,test"; + char *list = strdup (text); + equal (strsep (&list, ","), "This", 51); + equal (strsep (&list, ","), "is", 52); + equal (strsep (&list, ","), "a", 53); + equal (strsep (&list, ","), "test", 54); + check (strsep (&list, ",") == NULL, 55); + } + + cp = strcpy(one, "a,b, c,, ,d,"); + equal(strsep(&cp, ","), "a", 56); /* Different separators. */ + equal(strsep(&cp, ","), "b", 57); + equal(strsep(&cp, ","), " c", 58); /* Permute list too. */ + equal(strsep(&cp, ","), "", 59); + equal(strsep(&cp, ","), " ", 60); + equal(strsep(&cp, ","), "d", 61); + equal(strsep(&cp, ","), "", 62); + check(strsep(&cp, ",") == NULL, 63); + check(strsep(&cp, ",") == NULL, 64); /* Persistence. */ + + cp = strcpy(one, "a,b, c,, ,d,"); + equal(strsep(&cp, "xy,"), "a", 65); /* Different separators. */ + equal(strsep(&cp, "x,y"), "b", 66); + equal(strsep(&cp, ",xy"), " c", 67); /* Permute list too. */ + equal(strsep(&cp, "xy,"), "", 68); + equal(strsep(&cp, "x,y"), " ", 69); + equal(strsep(&cp, ",xy"), "d", 70); + equal(strsep(&cp, "xy,"), "", 71); + check(strsep(&cp, "x,y") == NULL, 72); + check(strsep(&cp, ",xy") == NULL, 73); /* Persistence. */ +} + +void +test_memcmp (void) +{ + it = "memcmp"; + check(memcmp("a", "a", 1) == 0, 1); /* Identity. */ + check(memcmp("abc", "abc", 3) == 0, 2); /* Multicharacter. */ + check(memcmp("abcd", "abce", 4) < 0, 3); /* Honestly unequal. */ + check(memcmp("abce", "abcd", 4) > 0, 4); + check(memcmp("alph", "beta", 4) < 0, 5); + check(memcmp("a\203", "a\003", 2) > 0, 6); + check(memcmp("abce", "abcd", 3) == 0, 7); /* Count limited. */ + check(memcmp("abc", "def", 0) == 0, 8); /* Zero count. */ +} + +void +test_memchr (void) +{ + it = "memchr"; + check(memchr("abcd", 'z', 4) == NULL, 1); /* Not found. */ + (void) strcpy(one, "abcd"); + check(memchr(one, 'c', 4) == one+2, 2); /* Basic test. */ + check(memchr(one, ~0xff|'c', 4) == one+2, 2); /* ignore highorder bits. */ + check(memchr(one, 'd', 4) == one+3, 3); /* End of string. */ + check(memchr(one, 'a', 4) == one, 4); /* Beginning. */ + check(memchr(one, '\0', 5) == one+4, 5); /* Finding NUL. */ + (void) strcpy(one, "ababa"); + check(memchr(one, 'b', 5) == one+1, 6); /* Finding first. */ + check(memchr(one, 'b', 0) == NULL, 7); /* Zero count. */ + check(memchr(one, 'a', 1) == one, 8); /* Singleton case. */ + (void) strcpy(one, "a\203b"); + check(memchr(one, 0203, 3) == one+1, 9); /* Unsignedness. */ + + /* now test all possible alignment and length combinations to catch + bugs due to unrolled loops (assuming unrolling is limited to no + more than 128 byte chunks: */ + { + char buf[128 + sizeof(long)]; + long align, len, i, pos; + + for (align = 0; align < (long) sizeof(long); ++align) { + for (len = 0; len < (long) (sizeof(buf) - align); ++len) { + for (i = 0; i < len; ++i) { + buf[align + i] = 'x'; /* don't depend on memset... */ + } + for (pos = 0; pos < len; ++pos) { +#if 0 + printf("align %d, len %d, pos %d\n", align, len, pos); +#endif + check(memchr(buf + align, 'x', len) == buf + align + pos, 10); + check(memchr(buf + align, 'x', pos) == NULL, 11); + buf[align + pos] = '-'; + } + } + } + } +} + +void +test_memcpy (void) +{ + it = "memcpy"; + check(memcpy(one, "abc", 4) == one, 1); /* Returned value. */ + equal(one, "abc", 2); /* Did the copy go right? */ + + (void) strcpy(one, "abcdefgh"); + (void) memcpy(one+1, "xyz", 2); + equal(one, "axydefgh", 3); /* Basic test. */ + + (void) strcpy(one, "abc"); + (void) memcpy(one, "xyz", 0); + equal(one, "abc", 4); /* Zero-length copy. */ + + (void) strcpy(one, "hi there"); + (void) strcpy(two, "foo"); + (void) memcpy(two, one, 9); + equal(two, "hi there", 5); /* Just paranoia. */ + equal(one, "hi there", 6); /* Stomped on source? */ +} + +void +test_memmove (void) +{ + it = "memmove"; + check(memmove(one, "abc", 4) == one, 1); /* Returned value. */ + equal(one, "abc", 2); /* Did the copy go right? */ + + (void) strcpy(one, "abcdefgh"); + (void) memmove(one+1, "xyz", 2); + equal(one, "axydefgh", 3); /* Basic test. */ + + (void) strcpy(one, "abc"); + (void) memmove(one, "xyz", 0); + equal(one, "abc", 4); /* Zero-length copy. */ + + (void) strcpy(one, "hi there"); + (void) strcpy(two, "foo"); + (void) memmove(two, one, 9); + equal(two, "hi there", 5); /* Just paranoia. */ + equal(one, "hi there", 6); /* Stomped on source? */ + + (void) strcpy(one, "abcdefgh"); + (void) memmove(one+1, one, 9); + equal(one, "aabcdefgh", 7); /* Overlap, right-to-left. */ + + (void) strcpy(one, "abcdefgh"); + (void) memmove(one+1, one+2, 7); + equal(one, "acdefgh", 8); /* Overlap, left-to-right. */ + + (void) strcpy(one, "abcdefgh"); + (void) memmove(one, one, 9); + equal(one, "abcdefgh", 9); /* 100% overlap. */ +} + +void +test_memccpy (void) +{ + /* First test like memcpy, then the search part The SVID, the only + place where memccpy is mentioned, says overlap might fail, so we + don't try it. Besides, it's hard to see the rationale for a + non-left-to-right memccpy. */ + it = "memccpy"; + check(memccpy(one, "abc", 'q', 4) == NULL, 1); /* Returned value. */ + equal(one, "abc", 2); /* Did the copy go right? */ + + (void) strcpy(one, "abcdefgh"); + (void) memccpy(one+1, "xyz", 'q', 2); + equal(one, "axydefgh", 3); /* Basic test. */ + + (void) strcpy(one, "abc"); + (void) memccpy(one, "xyz", 'q', 0); + equal(one, "abc", 4); /* Zero-length copy. */ + + (void) strcpy(one, "hi there"); + (void) strcpy(two, "foo"); + (void) memccpy(two, one, 'q', 9); + equal(two, "hi there", 5); /* Just paranoia. */ + equal(one, "hi there", 6); /* Stomped on source? */ + + (void) strcpy(one, "abcdefgh"); + (void) strcpy(two, "horsefeathers"); + check(memccpy(two, one, 'f', 9) == two+6, 7); /* Returned value. */ + equal(one, "abcdefgh", 8); /* Source intact? */ + equal(two, "abcdefeathers", 9); /* Copy correct? */ + + (void) strcpy(one, "abcd"); + (void) strcpy(two, "bumblebee"); + check(memccpy(two, one, 'a', 4) == two+1, 10); /* First char. */ + equal(two, "aumblebee", 11); + check(memccpy(two, one, 'd', 4) == two+4, 12); /* Last char. */ + equal(two, "abcdlebee", 13); + (void) strcpy(one, "xyz"); + check(memccpy(two, one, 'x', 1) == two+1, 14); /* Singleton. */ + equal(two, "xbcdlebee", 15); +} + +void +test_memset (void) +{ + int i; + + it = "memset"; + (void) strcpy(one, "abcdefgh"); + check(memset(one+1, 'x', 3) == one+1, 1); /* Return value. */ + equal(one, "axxxefgh", 2); /* Basic test. */ + + (void) memset(one+2, 'y', 0); + equal(one, "axxxefgh", 3); /* Zero-length set. */ + + (void) memset(one+5, 0, 1); + equal(one, "axxxe", 4); /* Zero fill. */ + equal(one+6, "gh", 5); /* And the leftover. */ + + (void) memset(one+2, 010045, 1); + equal(one, "ax\045xe", 6); /* Unsigned char convert. */ + + /* Non-8bit fill character. */ + memset (one, 0x101, sizeof (one)); + for (i = 0; i < sizeof (one); ++i) + check (one[i] == '\01', 7); + + /* Test for more complex versions of memset, for all alignments and + lengths up to 256. This test takes a little while, perhaps it should + be made weaker? */ + { + char data[512]; + int j; + int k; + int c; + + for (i = 0; i < 512; i++) + data[i] = 'x'; + for (c = 0; c <= 'y'; c += 'y') /* check for memset(,0,) and + memset(,'y',) */ + for (j = 0; j < 256; j++) + for (i = 0; i < 256; i++) + { + memset (data + i, c, j); + for (k = 0; k < i; k++) + if (data[k] != 'x') + goto fail; + for (k = i; k < i+j; k++) + { + if (data[k] != c) + goto fail; + data[k] = 'x'; + } + for (k = i+j; k < 512; k++) + if (data[k] != 'x') + goto fail; + continue; + + fail: + check (0, 8 + i + j * 256 + (c != 0) * 256 * 256); + } + } +} + +void +test_bcopy (void) +{ + /* Much like memcpy. Berklix manual is silent about overlap, so + don't test it. */ + it = "bcopy"; + (void) bcopy("abc", one, 4); + equal(one, "abc", 1); /* Simple copy. */ + + (void) strcpy(one, "abcdefgh"); + (void) bcopy("xyz", one+1, 2); + equal(one, "axydefgh", 2); /* Basic test. */ + + (void) strcpy(one, "abc"); + (void) bcopy("xyz", one, 0); + equal(one, "abc", 3); /* Zero-length copy. */ + + (void) strcpy(one, "hi there"); + (void) strcpy(two, "foo"); + (void) bcopy(one, two, 9); + equal(two, "hi there", 4); /* Just paranoia. */ + equal(one, "hi there", 5); /* Stomped on source? */ +} + +void +test_bzero (void) +{ + it = "bzero"; + (void) strcpy(one, "abcdef"); + bzero(one+2, 2); + equal(one, "ab", 1); /* Basic test. */ + equal(one+3, "", 2); + equal(one+4, "ef", 3); + + (void) strcpy(one, "abcdef"); + bzero(one+2, 0); + equal(one, "abcdef", 4); /* Zero-length copy. */ +} + +void +test_bcmp (void) +{ + it = "bcmp"; + check(bcmp("a", "a", 1) == 0, 1); /* Identity. */ + check(bcmp("abc", "abc", 3) == 0, 2); /* Multicharacter. */ + check(bcmp("abcd", "abce", 4) != 0, 3); /* Honestly unequal. */ + check(bcmp("abce", "abcd", 4) != 0, 4); + check(bcmp("alph", "beta", 4) != 0, 5); + check(bcmp("abce", "abcd", 3) == 0, 6); /* Count limited. */ + check(bcmp("abc", "def", 0) == 0, 8); /* Zero count. */ +} + +void +test_strerror (void) +{ + int f; + it = "strerror"; + f = open("/", O_WRONLY); /* Should always fail. */ + check(f < 0 && errno > 0 && errno < _sys_nerr, 1); + equal(strerror(errno), _sys_errlist[errno], 2); +} + +int +main (void) +{ + int status; + + /* Test strcmp first because we use it to test other things. */ + test_strcmp (); + + /* Test strcpy next because we need it to set up other tests. */ + test_strcpy (); + + /* strcat. */ + test_strcat (); + + /* strncat. */ + test_strncat (); + + /* strncmp. */ + test_strncmp (); + + /* strncpy. */ + test_strncpy (); + + /* strlen. */ + test_strlen (); + + /* strchr. */ + test_strchr (); + + /* index - just like strchr. */ + test_index (); + + /* strrchr. */ + test_strrchr (); + + /* rindex - just like strrchr. */ + test_rindex (); + + /* strpbrk - somewhat like strchr. */ + test_strpbrk (); + + /* strstr - somewhat like strchr. */ + test_strstr (); + + /* strspn. */ + test_strspn (); + + /* strcspn. */ + test_strcspn (); + + /* strtok - the hard one. */ + test_strtok (); + + /* strsep. */ + test_strsep (); + + /* memcmp. */ + test_memcmp (); + + /* memchr. */ + test_memchr (); + + /* memcpy - need not work for overlap. */ + test_memcpy (); + + /* memmove - must work on overlap. */ + test_memmove (); + + /* memccpy. */ + test_memccpy (); + + /* memset. */ + test_memset (); + + /* bcopy. */ + test_bcopy (); + + /* bzero. */ + test_bzero (); + + /* bcmp - somewhat like memcmp. */ + test_bcmp (); + + /* strerror - VERY system-dependent. */ + test_strerror (); + + + if (errors == 0) + { + status = EXIT_SUCCESS; + puts("No errors."); + } + else + { + status = EXIT_FAILURE; + printf("%d errors.\n", errors); + } + exit(status); +} |