From 36082a2fe36ecd800d784ae44c14f1f18c66a7e9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 28 Apr 2024 09:33:12 +0200
Subject: Adding upstream version 3.7.9.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/gl/tests/test-fopen.h | 89 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 src/gl/tests/test-fopen.h

(limited to 'src/gl/tests/test-fopen.h')

diff --git a/src/gl/tests/test-fopen.h b/src/gl/tests/test-fopen.h
new file mode 100644
index 0000000..b6a3dcb
--- /dev/null
+++ b/src/gl/tests/test-fopen.h
@@ -0,0 +1,89 @@
+/* Test of opening a file stream.
+   Copyright (C) 2007-2021 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 of the License, 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 Bruno Haible <bruno@clisp.org>, 2007.  */
+
+/* Include <config.h> and a form of <stdio.h> first.  */
+
+#include <errno.h>
+#include <unistd.h>
+
+#include "macros.h"
+
+/* Test fopen.  Assumes BASE is defined.  */
+
+static int
+test_fopen (void)
+{
+  FILE *f;
+  /* Remove anything from prior partial run.  */
+  unlink (BASE "file");
+
+  /* Read requires existing file.  */
+  errno = 0;
+  ASSERT (fopen (BASE "file", "r") == NULL);
+  ASSERT (errno == ENOENT);
+
+  /* Write can create a file.  */
+  f = fopen (BASE "file", "w");
+  ASSERT (f);
+  ASSERT (fclose (f) == 0);
+
+  /* Trailing slash is invalid on non-directory.  */
+  errno = 0;
+  ASSERT (fopen (BASE "file/", "r") == NULL);
+  ASSERT (errno == ENOTDIR || errno == EISDIR || errno == EINVAL);
+
+  errno = 0;
+  ASSERT (fopen (BASE "file/", "r+") == NULL);
+  ASSERT (errno == ENOTDIR || errno == EISDIR || errno == EINVAL);
+
+  /* Cannot create a directory.  */
+  errno = 0;
+  ASSERT (fopen ("nonexist.ent/", "w") == NULL);
+  ASSERT (errno == ENOTDIR || errno == EISDIR || errno == ENOENT
+          || errno == EINVAL);
+
+  /* Directories cannot be opened for writing.  */
+  errno = 0;
+  ASSERT (fopen (".", "w") == NULL);
+  ASSERT (errno == EISDIR || errno == EINVAL || errno == EACCES);
+
+  errno = 0;
+  ASSERT (fopen ("./", "w") == NULL);
+  ASSERT (errno == EISDIR || errno == EINVAL || errno == EACCES);
+
+  errno = 0;
+  ASSERT (fopen (".", "r+") == NULL);
+  ASSERT (errno == EISDIR || errno == EINVAL || errno == EACCES);
+
+  errno = 0;
+  ASSERT (fopen ("./", "r+") == NULL);
+  ASSERT (errno == EISDIR || errno == EINVAL || errno == EACCES);
+
+  /* /dev/null must exist, and be writable.  */
+  f = fopen ("/dev/null", "r");
+  ASSERT (f);
+  ASSERT (fclose (f) == 0);
+  f = fopen ("/dev/null", "w");
+  ASSERT (f);
+  ASSERT (fclose (f) == 0);
+
+  /* Cleanup.  */
+  ASSERT (unlink (BASE "file") == 0);
+
+  return 0;
+}
-- 
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