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test
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test15.c
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C/C++ Source or Header
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1990-07-20
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20KB
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592 lines
/* Test program for string(3) routines.
*
* Note that at least one Bell Labs implementation of the string
* routines flunks a couple of these tests -- the ones which test
* behavior on "negative" characters.
*/
#include <sys/types.h>
#include <string.h>
#include <fcntl.h>
#include <stdio.h>
#define STREQ(a, b) (strcmp((a), (b)) == 0)
char *it = "<UNSET>"; /* Routine name for message routines. */
int waserror = 0; /* For exit status. */
char uctest[] = "\004\203"; /* For testing signedness of chars. */
int charsigned; /* Result. */
/*
- check - complain if condition is not true
*/
void check(thing, number)
int thing;
int number; /* Test number for error message. */
{
if (!thing) {
printf("\t%s flunked test %d\n", it, number);
waserror = 1;
}
}
/*
- equal - complain if first two args don't strcmp as equal
*/
void equal(a, b, number)
char *a;
char *b;
int number; /* Test number for error message. */
{
check(a != NULL && b != NULL && STREQ(a, b), number);
}
char one[50];
char two[50];
#ifdef UNIXERR
#define ERR 1
#endif
#ifdef BERKERR
#define ERR 1
#endif
#ifdef ERR
int f;
extern char *sys_errlist[];
extern int sys_nerr;
extern int errno;
#endif
/* ARGSUSED */
main(argc, argv)
int argc;
char *argv[];
{
printf("Test 15 ");
/* First, establish whether chars are signed. */
if (uctest[0] < uctest[1])
charsigned = 0;
else
charsigned = 1;
/* Then, do the rest of the work. Split into two functions because
* some compilers get unhappy about a single immense function. */
first();
second();
printf("ok\n");
exit((waserror) ? 1 : 0);
}
first()
{
/* Test strcmp first because we use it to test other things. */
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. */
/* This gives problems DEBUG
if (charsigned)
check(strcmp("a\203", "a\003") < 0, 9);
else
check(strcmp("a\203", "a\003") > 0, 9);
*/
/* Test strcpy next because we need it to set up other tests. */
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. */
/* Strcat */
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);
/* Strncat - 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. */
/* Strncmp - 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 */
/* This gives problems -- DEBUG
if (charsigned)
check(strncmp("a\203", "a\003", 2) < 0, 9);
else
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. */
/* Strncpy - 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? */
/* Strlen */
it = "strlen";
check(strlen("") == 0, 1); /* Empty. */
check(strlen("a") == 1, 2); /* Single char. */
check(strlen("abcd") == 4, 3);/* Multiple chars. */
/* Strchr */
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. */
/* Index - just like strchr */
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(o