Added test for VM automatic start on host boot

Reasons:
    - VMs should not start automatically on host boot
Changes:
    - Added test for VM automatic start

Implements blueprint: vm-auto-start

Change-Id: I91cb0f3e9176d0cd5130d94377b6346d18748452

fuel_health/tests/cloudvalidation/test_vm_auto_start.py

@@ -0,0 +1,57 @@
+# Copyright 2015 Mirantis, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+from fuel_health import cloudvalidation
+
+
+class VMBootTest(cloudvalidation.CloudValidationTest):
+    """Cloud Validation Test class for VMs."""
+
+    def _check_host_boot(self, host):
+        """Test resume_guest_state_on_host_boot option on compute node.
+            By default, this option is set to False.
+        """
+
+        err_msg = ('The option "resume_guest_state_on_host_boot" '
+                   'is set to True at compute node {host}, so it can be '
+                   'broken down by the paused VMs after host boot.'
+                   ).format(host=host)
+
+        cmd = ('grep ^[^#]*\s*resume_guests_state_on_host_boot\s*=\s*True '
+               '/etc/nova/nova.conf')
+
+        cmd_timeout = 5
+        step = 1
+        action = 'check host boot option'
+
+        out, err = self.verify(cmd_timeout, self._run_ssh_cmd, step, err_msg,
+                               action, host, cmd)
+
+        auto_host_boot_disabled = not out and not err
+        self.verify_response_true(auto_host_boot_disabled, err_msg, 1)
+
+    def test_guests_state_on_host_boot(self):
+        """Check host boot configuration on compute nodes
+        Target component: Nova
+
+        Scenario:
+            1. Check host boot configuration on compute nodes
+
+        Duration: 20 s.
+
+        Available since release: 2015.1.0-8.0
+        """
+
+        for host in self.computes:
+            self._check_host_boot(host)