[LTP] [PATCH v1] Add rename15 test

[Andrea Cervesato]

From: Andrea Cervesato <andrea.cervesato@suse.com>

This test has been extracted from symlink01 and it verifies that
rename() is working correctly on symlink() generated files, renaming
symbolic link and checking if stat() information are preserved.

Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
---
 runtest/smoketest                           |  2 +-
 runtest/syscalls                            |  2 +-
 testcases/kernel/syscalls/rename/.gitignore |  1 +
 testcases/kernel/syscalls/rename/rename15.c | 41 +++++++++++++++++++++
 4 files changed, 44 insertions(+), 2 deletions(-)
 create mode 100644 testcases/kernel/syscalls/rename/rename15.c

diff --git a/runtest/smoketest b/runtest/smoketest
index 83eebfe7b..19fa257d6 100644
--- a/runtest/smoketest
+++ b/runtest/smoketest
@@ -10,7 +10,7 @@ write01 write01
 symlink01 symlink01
 stat04 symlink01 -T stat04
 utime01A symlink01 -T utime01
-rename01A symlink01 -T rename01
+rename15 rename15
 splice02 splice02 -s 20
 df01_sh df01.sh
 shell_test01 echo "SUCCESS" | shell_pipe01.sh
diff --git a/runtest/syscalls b/runtest/syscalls
index 6e2407879..ae058153b 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -1158,7 +1158,6 @@ removexattr01 removexattr01
 removexattr02 removexattr02
 
 rename01 rename01
-rename01A symlink01 -T rename01
 rename03 rename03
 rename04 rename04
 rename05 rename05
@@ -1171,6 +1170,7 @@ rename11 rename11
 rename12 rename12
 rename13 rename13
 rename14 rename14
+rename15 rename15
 
 #renameat test cases
 renameat01 renameat01
diff --git a/testcases/kernel/syscalls/rename/.gitignore b/testcases/kernel/syscalls/rename/.gitignore
index f95cf7d21..d17b80f09 100644
--- a/testcases/kernel/syscalls/rename/.gitignore
+++ b/testcases/kernel/syscalls/rename/.gitignore
@@ -11,3 +11,4 @@
 /rename12
 /rename13
 /rename14
+/rename15
diff --git a/testcases/kernel/syscalls/rename/rename15.c b/testcases/kernel/syscalls/rename/rename15.c
new file mode 100644
index 000000000..ae7f330b6
--- /dev/null
+++ b/testcases/kernel/syscalls/rename/rename15.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *    Author: David Fenner
+ *    Copilot: Jon Hendrickson
+ * Copyright (C) 2024 Andrea Cervesato andrea.cervesato@suse.com
+ */
+
+/*\
+ * [Description]
+ *
+ * This test verifies that rename() is working correctly on symlink()
+ * generated files, renaming symbolic link and checking if stat() information
+ * are preserved.
+ */
+
+#include "tst_test.h"
+
+static void run(void)
+{
+	char *oldname = "my_symlink0";
+	char *newname = "asymlink";
+	struct stat oldsym_stat;
+	struct stat newsym_stat;
+
+	SAFE_SYMLINK(tst_get_tmpdir(), oldname);
+	SAFE_STAT(oldname, &oldsym_stat);
+
+	SAFE_RENAME(oldname, newname);
+	SAFE_STAT(newname, &newsym_stat);
+
+	TST_EXP_EQ_LI(oldsym_stat.st_ino, newsym_stat.st_ino);
+	TST_EXP_EQ_LI(oldsym_stat.st_dev, newsym_stat.st_dev);
+
+	SAFE_UNLINK(newname);
+}
+
+static struct tst_test test = {
+	.test_all = run,
+	.needs_tmpdir = 1,
+};
-- 
2.35.3