Add a simple test for ANA state transition handling.

Signed-off-by: Hannes Reinecke <hare at suse.com>
---
 tests/nvme/018     | 153 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/nvme/018.out |  18 +++++++
 2 files changed, 171 insertions(+)
 create mode 100755 tests/nvme/018
 create mode 100644 tests/nvme/018.out

diff --git a/tests/nvme/018 b/tests/nvme/018
new file mode 100755
index 0000000..b7f9e00
--- /dev/null
+++ b/tests/nvme/018

@@ -0,0 +1,153 @@
+#!/bin/bash
+#
+# Regression test for ANA base support
+#
+# Copyright (C) 2018 Hannes Reinecke
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+. tests/nvme/rc
+
+DESCRIPTION="test ANA optimized/transitioning/inaccessible support"
+QUICK=1
+
+switch_nvmet_anagroup() {
+	local port1="$1"
+	local port2="$2"
+	local mode="$3"
+
+	echo "ANA state ${mode}"
+
+	if [ "${mode}" = "change" ] ; then
+		_set_nvmet_anagroup_state "${port1}" "1" "change"
+		_set_nvmet_anagroup_state "${port1}" "2" "change"
+		_set_nvmet_anagroup_state "${port2}" "1" "change"
+		_set_nvmet_anagroup_state "${port2}" "2" "change"
+	elif [ "${mode}" = "failover" ] ; then
+		_set_nvmet_anagroup_state "${port1}" "1" "inaccessible"
+		_set_nvmet_anagroup_state "${port1}" "2" "optimized"
+		_set_nvmet_anagroup_state "${port2}" "1" "optimized"
+		_set_nvmet_anagroup_state "${port2}" "2" "inaccessible"
+	else
+		_set_nvmet_anagroup_state "${port1}" "1" "optimized"
+		_set_nvmet_anagroup_state "${port1}" "2" "inaccessible"
+		_set_nvmet_anagroup_state "${port2}" "1" "inaccessible"
+		_set_nvmet_anagroup_state "${port2}" "2" "optimized"
+	fi
+}
+
+requires() {
+	_have_program nvme && _have_module nvme-loop && _have_module loop && \
+		_have_configfs && _have_fio