summaryrefslogtreecommitdiffstats
path: root/gnulib-tests/test-getline.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:11:47 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:11:47 +0000
commit758f820bcc0f68aeebac1717e537ca13a320b909 (patch)
tree48111ece75cf4f98316848b37a7e26356e00669e /gnulib-tests/test-getline.c
parentInitial commit. (diff)
downloadcoreutils-758f820bcc0f68aeebac1717e537ca13a320b909.tar.xz
coreutils-758f820bcc0f68aeebac1717e537ca13a320b909.zip
Adding upstream version 9.1.upstream/9.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--gnulib-tests/test-getline.c94
1 files changed, 94 insertions, 0 deletions
diff --git a/gnulib-tests/test-getline.c b/gnulib-tests/test-getline.c
new file mode 100644
index 0000000..a33b289
--- /dev/null
+++ b/gnulib-tests/test-getline.c
@@ -0,0 +1,94 @@
+/* Test of getline() function.
+ Copyright (C) 2007-2022 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
+ the Free Software Foundation, either version 3, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ 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, see <https://www.gnu.org/licenses/>. */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2007. */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (getline, ssize_t, (char **, size_t *, FILE *));
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "macros.h"
+
+int
+main (void)
+{
+ FILE *f;
+ char *line;
+ size_t len;
+ ssize_t result;
+
+ /* Create test file. */
+ f = fopen ("test-getline.txt", "wb");
+ if (!f || fwrite ("a\nA\nbc\nd\0f", 1, 10, f) != 10 || fclose (f) != 0)
+ {
+ fputs ("Failed to create sample file.\n", stderr);
+ remove ("test-getline.txt");
+ return 1;
+ }
+ f = fopen ("test-getline.txt", "rb");
+ if (!f)
+ {
+ fputs ("Failed to reopen sample file.\n", stderr);
+ remove ("test-getline.txt");
+ return 1;
+ }
+
+ /* Test initial allocation, which must include trailing NUL. */
+ line = NULL;
+ len = 0;
+ result = getline (&line, &len, f);
+ ASSERT (result == 2);
+ ASSERT (strcmp (line, "a\n") == 0);
+ ASSERT (2 < len);
+ free (line);
+
+ /* Test initial allocation again, with line = NULL and len != 0. */
+ line = NULL;
+ len = (size_t)(~0) / 4;
+ result = getline (&line, &len, f);
+ ASSERT (result == 2);
+ ASSERT (strcmp (line, "A\n") == 0);
+ ASSERT (2 < len);
+ free (line);
+
+ /* Test growth of buffer, must not leak. */
+ len = 1;
+ line = malloc (len);
+ result = getline (&line, &len, f);
+ ASSERT (result == 3);
+ ASSERT (strcmp (line, "bc\n") == 0);
+ ASSERT (3 < len);
+
+ /* Test embedded NULs and EOF behavior. */
+ result = getline (&line, &len, f);
+ ASSERT (result == 3);
+ ASSERT (memcmp (line, "d\0f", 4) == 0);
+ ASSERT (3 < len);
+
+ result = getline (&line, &len, f);
+ ASSERT (result == -1);
+
+ free (line);
+ fclose (f);
+ remove ("test-getline.txt");
+ return 0;
+}