[LTP] [RFC PATCH 1/5] shell lib: Add support for test cleanup

[Petr Vorel]

From: Cyril Hrubis <chrubis@suse.cz>

Reviewed-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
---
The same as in:
https://patchwork.ozlabs.org/project/ltp/patch/20250214112135.18947-3-chrubis@suse.cz/

 testcases/lib/run_tests.sh                    |  4 +++-
 .../lib/tests/shell_loader_brk_cleanup.sh     | 20 +++++++++++++++++++
 testcases/lib/tests/shell_loader_cleanup.sh   | 20 +++++++++++++++++++
 testcases/lib/tst_env.sh                      |  4 ++++
 4 files changed, 47 insertions(+), 1 deletion(-)
 create mode 100755 testcases/lib/tests/shell_loader_brk_cleanup.sh
 create mode 100755 testcases/lib/tests/shell_loader_cleanup.sh

diff --git a/testcases/lib/run_tests.sh b/testcases/lib/run_tests.sh
index 321f74e5fe..128cee3377 100755
--- a/testcases/lib/run_tests.sh
+++ b/testcases/lib/run_tests.sh
@@ -9,6 +9,7 @@ shell_loader_filesystems.sh
 shell_loader_kconfigs.sh
 shell_loader_supported_archs.sh
 shell_loader_tcnt.sh
+shell_loader_cleanup.sh
 shell_test01
 shell_test02
 shell_test03
@@ -21,7 +22,8 @@ TESTS_TBROK="
 shell_loader_invalid_block.sh
 shell_loader_invalid_metadata.sh
 shell_loader_no_metadata.sh
-shell_loader_wrong_metadata.sh"
+shell_loader_wrong_metadata.sh
+shell_loader_brk_cleanup.sh"
 
 TESTS_TCONF="shell_test06"
 
diff --git a/testcases/lib/tests/shell_loader_brk_cleanup.sh b/testcases/lib/tests/shell_loader_brk_cleanup.sh
new file mode 100755
index 0000000000..8c704a5406
--- /dev/null
+++ b/testcases/lib/tests/shell_loader_brk_cleanup.sh
@@ -0,0 +1,20 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (c) 2024-2025 Cyril Hrubis <chrubis@suse.cz>
+#
+# ---
+# env
+# {
+# }
+# ---
+
+TST_CLEANUP=cleanup
+
+. tst_loader.sh
+
+cleanup()
+{
+	tst_res TINFO "Cleanup runs"
+}
+
+tst_brk TBROK "Test exits"
diff --git a/testcases/lib/tests/shell_loader_cleanup.sh b/testcases/lib/tests/shell_loader_cleanup.sh
new file mode 100755
index 0000000000..fb7bbdf5a9
--- /dev/null
+++ b/testcases/lib/tests/shell_loader_cleanup.sh
@@ -0,0 +1,20 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (c) 2024-2025 Cyril Hrubis <chrubis@suse.cz>
+#
+# ---
+# env
+# {
+# }
+# ---
+
+TST_CLEANUP=do_cleanup
+
+. tst_loader.sh
+
+do_cleanup()
+{
+	tst_res TINFO "Cleanup executed"
+}
+
+tst_res TPASS "Test is executed"
diff --git a/testcases/lib/tst_env.sh b/testcases/lib/tst_env.sh
index 68f9a0daa9..b13bab37c3 100644
--- a/testcases/lib/tst_env.sh
+++ b/testcases/lib/tst_env.sh
@@ -35,3 +35,7 @@ tst_brk_()
 
 alias tst_res="tst_res_ $tst_script_name \$LINENO"
 alias tst_brk="tst_brk_ $tst_script_name \$LINENO"
+
+if [ -n "$TST_CLEANUP" ]; then
+	trap $TST_CLEANUP EXIT
+fi
-- 
2.47.2