X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-fclose.c;h=ecc60cd4f0f3f44510702dcdee9c82c1e552eb6b;hb=086fbef22c89b68e37680edd5b00211f96d6e1de;hp=a11eca96e39d29ddf7785d3921a06143786b69ef;hpb=3606b90f3c4a19708ef05140837f2aa307f2516f;p=gnulib.git

diff --git a/tests/test-fclose.c b/tests/test-fclose.c
index a11eca96e..ecc60cd4f 100644
--- a/tests/test-fclose.c
+++ b/tests/test-fclose.c
@@ -76,12 +76,35 @@ main (int argc, char **argv)
 
   /* Test that fclose() sets errno if someone else closes the stream
      fd behind the back of stdio.  */
-  f = fdopen (fd, "w+");
-  ASSERT (f);
-  ASSERT (close (fd) == 0);
-  errno = 0;
-  ASSERT (fclose (f) == EOF);
-  ASSERT (errno == EBADF);
+  {
+    FILE *fp = fdopen (fd, "w+");
+    ASSERT (fp != NULL);
+    ASSERT (close (fd) == 0);
+    errno = 0;
+    ASSERT (fclose (fp) == EOF);
+    ASSERT (errno == EBADF);
+  }
+
+  /* Test that fclose() sets errno if the stream was constructed with
+     an invalid file descriptor.  */
+  {
+    FILE *fp = fdopen (-1, "r");
+    if (fp != NULL)
+      {
+        errno = 0;
+        ASSERT (fclose (fp) == EOF);
+        ASSERT (errno == EBADF);
+      }
+  }
+  {
+    FILE *fp = fdopen (99, "r");
+    if (fp != NULL)
+      {
+        errno = 0;
+        ASSERT (fclose (fp) == EOF);
+        ASSERT (errno == EBADF);
+      }
+  }
 
   /* Clean up.  */
   ASSERT (remove (BASE) == 0);