Merge commit 'a39d4083cab589d7cd6a13e8a4b8db8875261d75'

[gnulib.git] / tests / test-getdelim.c

diff --git a/tests/test-getdelim.c b/tests/test-getdelim.c
index dbb44a6..76aba82 100644 (file)
--- a/tests/test-getdelim.c
+++ b/tests/test-getdelim.c
@@ -1,5 +1,5 @@
 /* Test of getdelim() function.
-   Copyright (C) 2007-2009 Free Software Foundation, Inc.
+   Copyright (C) 2007-2014 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -12,8 +12,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Eric Blake <ebb9@byu.net>, 2007.  */
 
@@ -33,13 +32,13 @@ int
 main (void)
 {
   FILE *f;
-  char *line = NULL;
-  size_t len = 0;
+  char *line;
+  size_t len;
   ssize_t result;
 
   /* Create test file.  */
   f = fopen ("test-getdelim.txt", "wb");
-  if (!f || fwrite ("anbcnd\0f", 1, 8, f) != 8 || fclose (f) != 0)
+  if (!f || fwrite ("anAnbcnd\0f", 1, 10, f) != 10 || fclose (f) != 0)
     {
       fputs ("Failed to create sample file.\n", stderr);
       remove ("test-getdelim.txt");
@@ -54,13 +53,24 @@ main (void)
     }
 
   /* Test initial allocation, which must include trailing NUL.  */
+  line = NULL;
+  len = 0;
   result = getdelim (&line, &len, 'n', f);
   ASSERT (result == 2);
   ASSERT (strcmp (line, "an") == 0);
   ASSERT (2 < len);
+  free (line);
 
-  /* Test growth of buffer.  */
+  /* Test initial allocation again, with line = NULL and len != 0.  */
+  line = NULL;
+  len = (size_t)(~0) / 4;
+  result = getdelim (&line, &len, 'n', f);
+  ASSERT (result == 2);
+  ASSERT (strcmp (line, "An") == 0);
+  ASSERT (2 < len);
   free (line);
+
+  /* Test growth of buffer.  */
   line = malloc (1);
   len = 1;
   result = getdelim (&line, &len, 'n', f);