Add basic test to make sure the functionality works as expected.
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Signed-off-by: Gao Xiang <hsiangkao@xxxxxxxxxx>
---
tests/xfs/990 | 73 +++++++++++++++++++++++++++++++++++++++++++++++
tests/xfs/990.out | 12 ++++++++
tests/xfs/group | 1 +
3 files changed, 86 insertions(+)
create mode 100755 tests/xfs/990
create mode 100644 tests/xfs/990.out
diff --git a/tests/xfs/990 b/tests/xfs/990
new file mode 100755
index 00000000..ec2592f6
--- /dev/null
+++ b/tests/xfs/990
@@ -0,0 +1,73 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2021 Red Hat, Inc. All Rights Reserved.
+#
+# FS QA Test 990
+#
+# XFS shrinkfs basic functionality test
+#
+# This test attempts to shrink with a small size (512K), half AG size and
+# an out-of-bound size (agsize + 1) to observe if it works as expected.
+#
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1 # failure is the default!
+trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+test_shrink()
+{
+ $XFS_GROWFS_PROG -D"$1" $SCRATCH_MNT >> $seqres.full 2>&1
+ ret=$?
+
+ _scratch_unmount
+ _check_scratch_fs
+ _scratch_mount
+
+ $XFS_INFO_PROG $SCRATCH_MNT 2>&1 | _filter_mkfs 2>$tmp.growfs >/dev/null
+ . $tmp.growfs
+ [ $ret -eq 0 -a $1 -eq $dblocks ]
+}
+
+# real QA test starts here
+_supported_fs xfs
+_require_xfs_scratch_shrink
+
+rm -f $seqres.full
+echo "Format and mount"
+
+# agcount = 1 is forbidden on purpose, and need to ensure shrinking to
+# 2 AGs isn't feasible yet. So agcount = 3 is the minimum number now.
+_scratch_mkfs -dsize="$((512 * 1024 * 1024))" -dagcount=3 2>&1 | \
+ tee -a $seqres.full | _filter_mkfs 2>$tmp.mkfs
+. $tmp.mkfs
+t_dblocks=$dblocks
+_scratch_mount >> $seqres.full
+
+echo "Shrink fs (small size)"
+test_shrink $((t_dblocks-512*1024/dbsize)) || \
+ echo "Shrink fs (small size) failure"
+
+echo "Shrink fs (half AG)"
+test_shrink $((t_dblocks-agsize/2)) || \
+ echo "Shrink fs (half AG) failure"
+
+echo "Shrink fs (out-of-bound)"
+test_shrink $((t_dblocks-agsize-1)) && \
+ echo "Shrink fs (out-of-bound) failure"
+[ $dblocks -ne $((t_dblocks-agsize/2)) ] && \
+ echo "dblocks changed after shrinking failure"
+
+$XFS_INFO_PROG $SCRATCH_MNT >> $seqres.full
+echo "*** done"
+
+# success, all done
+status=0
+exit
diff --git a/tests/xfs/990.out b/tests/xfs/990.out
new file mode 100644
index 00000000..812f89ef
--- /dev/null
+++ b/tests/xfs/990.out
@@ -0,0 +1,12 @@
+QA output created by 990
+Format and mount
+meta-data=DDEV isize=XXX agcount=N, agsize=XXX blks
+data = bsize=XXX blocks=XXX, imaxpct=PCT
+ = sunit=XXX swidth=XXX, unwritten=X
+naming =VERN bsize=XXX
+log =LDEV bsize=XXX blocks=XXX
+realtime =RDEV extsz=XXX blocks=XXX, rtextents=XXX
+Shrink fs (small size)
+Shrink fs (half AG)
+Shrink fs (out-of-bound)
+*** done
diff --git a/tests/xfs/group b/tests/xfs/group
index fe83f82d..472c8f9a 100644
--- a/tests/xfs/group
+++ b/tests/xfs/group
@@ -520,3 +520,4 @@
537 auto quick
538 auto stress
539 auto quick mount
+990 auto quick growfs shrinkfs
--
2.27.0
