diff options
Diffstat (limited to 'tests/portable/mkstemp-t.c')
-rw-r--r-- | tests/portable/mkstemp-t.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/tests/portable/mkstemp-t.c b/tests/portable/mkstemp-t.c new file mode 100644 index 0000000..20a83fc --- /dev/null +++ b/tests/portable/mkstemp-t.c @@ -0,0 +1,80 @@ +/* + * mkstemp test suite. + * + * The canonical version of this file is maintained in the rra-c-util package, + * which can be found at <http://www.eyrie.org/~eagle/software/rra-c-util/>. + * + * Written by Russ Allbery <eagle@eyrie.org> + * + * The authors hereby relinquish any claim to any copyright that they may have + * in this work, whether granted under contract or by operation of law or + * international treaty, and hereby commit to the public, at large, that they + * shall not, at any time in the future, seek to enforce any copyright in this + * work against any person or entity, or prevent any person or entity from + * copying, publishing, distributing or creating derivative works of this + * work. + */ + +#include <config.h> +#include <portable/system.h> + +#include <errno.h> +#include <sys/stat.h> + +#include <tests/tap/basic.h> + +int test_mkstemp(char *template); + +int +main(void) +{ + int fd; + char template[] = "tsXXXXXXX"; + char tooshort[] = "XXXXX"; + char bad1[] = "/foo/barXXXXX"; + char bad2[] = "/foo/barXXXXXX.out"; + char buffer[256]; + struct stat st1, st2; + ssize_t length; + + plan(20); + + /* First, test a few error messages. */ + errno = 0; + is_int(-1, test_mkstemp(tooshort), "too short of template"); + is_int(EINVAL, errno, "...with correct errno"); + is_string("XXXXX", tooshort, "...and template didn't change"); + errno = 0; + is_int(-1, test_mkstemp(bad1), "bad template"); + is_int(EINVAL, errno, "...with correct errno"); + is_string("/foo/barXXXXX", bad1, "...and template didn't change"); + errno = 0; + is_int(-1, test_mkstemp(bad2), "template doesn't end in XXXXXX"); + is_int(EINVAL, errno, "...with correct errno"); + is_string("/foo/barXXXXXX.out", bad2, "...and template didn't change"); + errno = 0; + + /* Now try creating a real file. */ + fd = test_mkstemp(template); + ok(fd >= 0, "mkstemp works with valid template"); + ok(strcmp(template, "tsXXXXXXX") != 0, "...and template changed"); + ok(strncmp(template, "tsX", 3) == 0, "...and didn't touch first X"); + ok(access(template, F_OK) == 0, "...and the file exists"); + + /* Make sure that it's the same file as template refers to now. */ + ok(stat(template, &st1) == 0, "...and stat of template works"); + ok(fstat(fd, &st2) == 0, "...and stat of open file descriptor works"); + ok(st1.st_ino == st2.st_ino, "...and they're the same file"); + unlink(template); + + /* Make sure the open mode is correct. */ + length = strlen(template); + is_int(length, write(fd, template, length), "write to open file works"); + ok(lseek(fd, 0, SEEK_SET) == 0, "...and rewind works"); + is_int(length, read(fd, buffer, length), "...and the data is there"); + buffer[length] = '\0'; + is_string(template, buffer, "...and matches what we wrote"); + close(fd); + + return 0; +} |