+ /* Test behaviour for invalid file descriptors. */
+ {
+ errno = 0;
+ ASSERT (fchdir (-1) == -1);
+ ASSERT (errno == EBADF);
+ }
+ {
+ close (99);
+ errno = 0;
+ ASSERT (fchdir (99) == -1);
+ ASSERT (errno == EBADF);
+ }
+
+ /* Check for other failure cases. */