From fbb11701111693e105718b5c4390e659c15e8f4a Mon Sep 17 00:00:00 2001
From: Qu Wenruo <wqu@suse.com>
Date: Sun, 13 Nov 2022 14:32:39 +0800
Subject: [PATCH] btrfs-progs: tests: add test case for degraded raid5

The new test case will make sure btrfs check is fine checking a degraded
raid5 filesystem.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---
 tests/fsck-tests/060-degraded-check/test.sh | 36 +++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100755 tests/fsck-tests/060-degraded-check/test.sh

diff --git a/tests/fsck-tests/060-degraded-check/test.sh b/tests/fsck-tests/060-degraded-check/test.sh
new file mode 100755
index 00000000..6a1f50c8
--- /dev/null
+++ b/tests/fsck-tests/060-degraded-check/test.sh
@@ -0,0 +1,36 @@
+#!/bin/bash
+#
+# Make sure "btrfs check" can handle degraded raid5.
+#
+
+source "$TEST_TOP/common"
+
+check_prereq btrfs
+check_prereq mkfs.btrfs
+check_global_prereq losetup
+check_global_prereq wipefs
+
+setup_loopdevs 3
+prepare_loopdevs
+dev1=${loopdevs[1]}
+dev2=${loopdevs[2]}
+dev3=${loopdevs[3]}
+
+setup_root_helper
+
+# Run 1: victim is dev1
+run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f -m raid5 -d raid5 "${loopdevs[@]}"
+run_check $SUDO_HELPER wipefs -fa $dev1
+run_check $SUDO_HELPER "$TOP/btrfs" check $dev2
+
+# Run 2: victim is dev2
+run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f -m raid5 -d raid5 "${loopdevs[@]}"
+run_check $SUDO_HELPER wipefs -fa $dev2
+run_check $SUDO_HELPER "$TOP/btrfs" check $dev3
+
+# Run 3: victim is dev3
+run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f -m raid5 -d raid5 "${loopdevs[@]}"
+run_check $SUDO_HELPER wipefs -fa $dev3
+run_check $SUDO_HELPER "$TOP/btrfs" check $dev1
+
+cleanup_loopdevs