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diff --git a/tests/sys/geom/class/Makefile b/tests/sys/geom/class/Makefile
--- a/tests/sys/geom/class/Makefile
+++ b/tests/sys/geom/class/Makefile
@@ -19,6 +19,7 @@
TESTS_SUBDIRS+= stripe
TESTS_SUBDIRS+= union
TESTS_SUBDIRS+= uzip
+TESTS_SUBDIRS+= virstor
${PACKAGE}FILES+= geom_subr.sh
diff --git a/tests/sys/geom/class/virstor/Makefile b/tests/sys/geom/class/virstor/Makefile
new file mode 100644
--- /dev/null
+++ b/tests/sys/geom/class/virstor/Makefile
@@ -0,0 +1,9 @@
+PACKAGE= tests
+
+TESTSDIR= ${TESTSBASE}/sys/geom/class/${.CURDIR:T}
+
+ATF_TESTS_SH+= virstor_test
+
+${PACKAGE}FILES+= conf.sh
+
+.include <bsd.test.mk>
diff --git a/tests/sys/geom/class/virstor/conf.sh b/tests/sys/geom/class/virstor/conf.sh
new file mode 100644
--- /dev/null
+++ b/tests/sys/geom/class/virstor/conf.sh
@@ -0,0 +1,31 @@
+#!/bin/sh
+
+class="virstor"
+base=$(atf_get ident)
+TEST_VIRSTOR_DEVS_FILE="${TMPDIR}/test_virstor_devs.$(basename $0)"
+
+gvirstor_dev_setup()
+{
+ # Pick a random name and record it for cleanup.
+ local vdevbase="$(mktemp -u virstor.XXXXXX)" || aft_fail "mktemp"
+ echo "$vdevbase" >> "$TEST_VIRSTOR_DEVS_FILE"
+ eval "${1}='${vdevbase}'"
+}
+
+gvirstor_test_cleanup()
+{
+ local vdevbase
+ if [ -f "$TEST_VIRSTOR_DEVS_FILE" ]; then
+ while read vdevbase; do
+ if [ -c "/dev/$class/$vdevbase" ]; then
+ echo "# Destroying test virstor device:" \
+ "$vdevbase"
+ gvirstor destroy "$vdevbase"
+ fi
+ done < "$TEST_VIRSTOR_DEVS_FILE"
+ fi
+ geom_test_cleanup
+}
+
+ATF_TEST=true
+. `dirname $0`/../geom_subr.sh
diff --git a/tests/sys/geom/class/virstor/virstor_test.sh b/tests/sys/geom/class/virstor/virstor_test.sh
new file mode 100644
--- /dev/null
+++ b/tests/sys/geom/class/virstor/virstor_test.sh
@@ -0,0 +1,73 @@
+#
+# Copyright (c) 2024 Dell Inc. or its subsidiaries. All Rights Reserved.
+#
+# SPDX-License-Identifier: BSD-2-Clause
+#
+
+. $(atf_get_srcdir)/conf.sh
+
+atf_test_case basic cleanup
+basic_head()
+{
+ atf_set "descr" "geom virstor basic functional test"
+ atf_set "require.user" "root"
+}
+basic_body()
+{
+ geom_atf_test_setup
+ # Choose a virstor device name
+ gvirstor_dev_setup name
+
+ # Create an md backing device and initialize it with junk
+ psecsize=512
+ attach_md md -t swap -S $psecsize -s 5M || atf_fail "attach_md"
+ jot -b uninitialized 0 | dd status=none of=/dev/$md 2> /dev/null
+
+ # Create a virstor device
+ vsizemb=64
+ vsize=$((vsizemb * 1024 * 1024))
+ atf_check -o ignore -e ignore \
+ gvirstor label -v -s ${vsizemb}M -m 512 $name /dev/$md
+ devwait
+ vdev="/dev/$class/$name"
+
+ ssize=$(diskinfo $vdev | awk '{print $2}')
+ atf_check_equal $psecsize $ssize
+
+ size=$(diskinfo $vdev | awk '{print $3}')
+ atf_check_equal $vsize $size
+
+ # Write the first and last sectors of the virtual address space
+ hasha=$(jot -b a 0 | head -c $ssize | sha1)
+ hashz=$(jot -b z 0 | head -c $ssize | sha1)
+ zsector=$((vsize / ssize - 1))
+ jot -b a 0 | dd status=none of=$vdev bs=$ssize count=1 conv=notrunc
+ jot -b z 0 | dd status=none of=$vdev bs=$ssize count=1 conv=notrunc \
+ seek=$zsector
+
+ # Read back and compare
+ hashx=$(dd status=none if=$vdev bs=$ssize count=1 | sha1)
+ atf_check_equal $hasha $hashx
+ hashx=$(dd status=none if=$vdev bs=$ssize count=1 skip=$zsector | sha1)
+ atf_check_equal $hashz $hashx
+
+ # Destroy, then retaste and reload
+ atf_check -o ignore gvirstor destroy $name
+ true > /dev/$md
+ devwait
+
+ # Read back and compare
+ hashx=$(dd status=none if=$vdev bs=$ssize count=1 | sha1)
+ atf_check_equal $hasha $hashx
+ hashx=$(dd status=none if=$vdev bs=$ssize count=1 skip=$zsector | sha1)
+ atf_check_equal $hashz $hashx
+}
+basic_cleanup()
+{
+ gvirstor_test_cleanup
+}
+
+atf_init_test_cases()
+{
+ atf_add_test_case basic
+}

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