[PATCH v2] xfs: Add test for too-small device with stripe geometry

[Pavel Reichl <preichl@redhat.com>]

Verify hat an attempt to create a too-small device with stripe geometry,
is handled gracefully instead of hitting an assert in align_ag_geometry()

Signed-off-by: Pavel Reichl <preichl@redhat.com>
---
 tests/xfs/260     | 52 +++++++++++++++++++++++++++++++++++++++++++++++
 tests/xfs/260.out |  2 ++
 tests/xfs/group   |  1 +
 3 files changed, 55 insertions(+)
 create mode 100755 tests/xfs/260
 create mode 100644 tests/xfs/260.out

diff --git a/tests/xfs/260 b/tests/xfs/260
new file mode 100755
index 00000000..4e81d634
--- /dev/null
+++ b/tests/xfs/260
@@ -0,0 +1,52 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2020 YOUR NAME HERE.  All Rights Reserved.
+#
+# FS QA Test 260
+#
+# Verify that an attempt to create a too-small device with stripe geometry,
+# is handled gracefully instead of hitting an assert in align_ag_geometry()
+#
+# This test verifies the problem fixed in kernel with commit
+# (mkfs.xfs: fix ASSERT on too-small device with stripe geometry)
+#
+
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1	# failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+	cd /
+	rm -f $tmp.*
+	rm -f $localfile
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+
+# remove previous $seqres.full before test
+rm -f $seqres.full
+
+echo 'Silence is golden'
+
+_supported_fs xfs
+_supported_os Linux
+_require_test
+
+localfile=$TEST_DIR/260.$$
+
+truncate --size=10444800 $localfile
+
+$MKFS_XFS_PROG -dsu=65536,sw=1 $localfile >> $seqres.full 2>&1
+
+[ $? -ne 1 ] && echo "${MKFS_XFS_PROG} should fail gracefully"
+
+# success, all done
+status=0
+exit
diff --git a/tests/xfs/260.out b/tests/xfs/260.out
new file mode 100644
index 00000000..18ca517c
--- /dev/null
+++ b/tests/xfs/260.out
@@ -0,0 +1,2 @@
+QA output created by 260
+Silence is golden
diff --git a/tests/xfs/group b/tests/xfs/group
index ed0d389e..7a6dfed7 100644
--- a/tests/xfs/group
+++ b/tests/xfs/group
@@ -257,6 +257,7 @@
 257 auto quick clone
 258 auto quick clone
 259 auto quick
+260 auto quick mkfs
 261 auto quick quota
 262 dangerous_fuzzers dangerous_scrub dangerous_online_repair
 263 auto quick quota
-- 
2.26.2