NetBSD/regress/lib/libc/basename/test.c

95 lines
2.2 KiB
C

/* $NetBSD: test.c,v 1.2 2003/07/26 19:38:45 salo Exp $ */
/*
* Regression test for basename(3).
*
* Written by Jason R. Thorpe <thorpej@NetBSD.org>, Oct. 2002.
* Public domain.
*/
#include <assert.h>
#include <stdio.h>
#include <string.h>
#include <libgen.h>
struct {
const char *input;
const char *output;
} test_table[] = {
/*
* The following are taken from the "Sample Input and Output Strings
* for basename()" table in IEEE Std 1003.1-2001.
*/
{ "/usr/lib", "lib" },
{ "/usr/", "usr" },
{ "/", "/" },
{ "///", "/" },
{ "//usr//lib//", "lib" },
/*
* IEEE Std 1003.1-2001:
*
* If path is a null pointer or points to an empty string,
* basename() shall return a pointer to the string "." .
*/
{ "", "." },
{ NULL, "." },
/*
* IEEE Std 1003.1-2001:
*
* If the string is exactly "//", it is implementation-defined
* whether "/" or "//" is returned.
*
* The NetBSD implementation returns "/".
*/
{ "//", "/" },
{ NULL, NULL }
};
int main(int argc, char *argv[]);
int
main(int argc, char *argv[])
{
char testbuf[32], *base;
int i, rv = 0;
for (i = 0; test_table[i].output != NULL; i++) {
if (test_table[i].input != NULL) {
assert(strlen(test_table[i].input) < sizeof(testbuf));
strcpy(testbuf, test_table[i].input);
base = basename(testbuf);
} else
base = basename(NULL);
/*
* basename(3) is allowed to modify the input buffer.
* However, that is considered hostile by some programs,
* and so we elect to consider this an error.
*
* This is not a problem, as basename(3) is also allowed
* to return a pointer to a statically-allocated buffer
* (it is explicitly not required to be reentrant).
*/
if (test_table[i].input != NULL &&
strcmp(test_table[i].input, testbuf) != 0) {
fprintf(stderr,
"Input buffer for \"%s\" was modified\n",
test_table[i].input);
rv = 1;
}
/* Make sure the result is correct. */
if (strcmp(test_table[i].output, base) != 0) {
fprintf(stderr,
"Input \"%s\", output \"%s\", expected \"%s\"\n",
test_table[i].input == NULL ? "(null)"
: test_table[i].input,
base, test_table[i].output);
rv = 1;
}
}
exit(rv);
}