btrfs-progs: tests/fsck: Add test case to check if btrfs check can skip data csum...

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/tests/fsck-tests/031-metadatadump-check-data-csum/test.sh b/tests/fsck-tests/031-metadatadump-check-data-csum/test.sh
new file mode 100755 (executable)
index 0000000..30b0b7a
--- /dev/null
+++ b/tests/fsck-tests/031-metadatadump-check-data-csum/test.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+# To check if "btrfs check" can detect metadata dump (restored by btrfs-iamge)
+# and ignore --check-data-csum option
+
+source "$TEST_TOP/common"
+
+check_prereq btrfs
+check_prereq mkfs.btrfs
+check_prereq btrfs-image
+setup_root_helper
+prepare_test_dev
+
+run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f "$TEST_DEV"
+run_check_mount_test_dev
+
+run_check $SUDO_HELPER dd if=/dev/urandom of="$TEST_MNT/file" bs=4k count=16
+run_check_umount_test_dev
+
+run_check $SUDO_HELPER "$TOP/btrfs-image" "$TEST_DEV" "restored_image"
+
+# use prepare_test_dev() to wipe all existing data on $TEST_DEV
+# so there is no way that restored image could have mathcing data csum
+prepare_test_dev
+
+run_check $SUDO_HELPER "$TOP/btrfs-image" -r "restored_image" "$TEST_DEV"
+
+# Should not report any error
+run_check "$TOP/btrfs" check --check-data-csum "$TEST_DEV"
+
+rm -rf -- "restored_image*"