Add "volume host failover" command

Add "volume host failover" command in volume v2 (v2 only).

Change-Id: Ia39e6d20bf5c9d3096e46f3432804a240827548d
Implements: bp cinder-command-support

1 files changed, 31 insertions, 0 deletions

diff --git a/openstackclient/tests/unit/volume/v2/test_volume_host.py b/openstackclient/tests/unit/volume/v2/test_volume_host.py
index aad7bb0b..b024329a 100644
--- a/openstackclient/tests/unit/volume/v2/test_volume_host.py
+++ b/openstackclient/tests/unit/volume/v2/test_volume_host.py
@@ -35,6 +35,7 @@ class TestVolumeHostSet(TestVolumeHost):
         self.host_mock.freeze_host.return_value = None
         self.host_mock.thaw_host.return_value = None
 
+        # Get the command object to mock
         self.cmd = volume_host.SetVolumeHost(self.app, None)
 
     def test_volume_host_set_nothing(self):
@@ -84,3 +85,33 @@ class TestVolumeHostSet(TestVolumeHost):
         self.host_mock.freeze_host.assert_called_with(self.service.host)
         self.host_mock.thaw_host.assert_not_called()
         self.assertIsNone(result)
+
+
+class TestVolumeHostFailover(TestVolumeHost):
+
+    service = host_fakes.FakeService.create_one_service()
+
+    def setUp(self):
+        super(TestVolumeHostFailover, self).setUp()
+
+        self.host_mock.failover_host.return_value = None
+
+        # Get the command object to mock
+        self.cmd = volume_host.FailoverVolumeHost(self.app, None)
+
+    def test_volume_host_failover(self):
+        arglist = [
+            '--volume-backend', 'backend_test',
+            self.service.host,
+        ]
+        verifylist = [
+            ('volume_backend', 'backend_test'),
+            ('host', self.service.host),
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        result = self.cmd.take_action(parsed_args)
+
+        self.host_mock.failover_host.assert_called_with(
+            self.service.host, 'backend_test')
+        self.assertIsNone(result)