[Test] Add tc to check updates in 'options' file on quorum changes

Test Steps:
1. Create and start a volume
2. Check the output of '/var/lib/glusterd/options' file
3. Store the value of 'global-option-version'
4. Set server-quorum-ratio to 70%
5. Check the output of '/var/lib/glusterd/options' file
6. Compare the value of 'global-option-version' and check
   if the value of 'server-quorum-ratio' is set to 70%

Change-Id: I5af40a1e05eb542e914e5766667c271cbbe126e8
Signed-off-by: nik-redhat <nladha@redhat.com>

1 files changed, 94 insertions, 0 deletions

diff --git a/tests/functional/glusterd/test_updates_in_options_file_on_quorum_changes.py b/tests/functional/glusterd/test_updates_in_options_file_on_quorum_changes.py
new file mode 100644
index 000000000..98a3ba53f
--- /dev/null
+++ b/tests/functional/glusterd/test_updates_in_options_file_on_quorum_changes.py
@@ -0,0 +1,94 @@
+#  Copyright (C) 2020 Red Hat, Inc. <http://www.redhat.com>
+#
+#  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 2 of the License, or
+#  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, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+"""
+    Test Description:
+    Tests to check the 'options' file is updated with quorum changes
+"""
+
+from glusto.core import Glusto as g
+from glustolibs.gluster.exceptions import ExecutionError
+from glustolibs.gluster.gluster_base_class import GlusterBaseClass, runs_on
+from glustolibs.gluster.volume_ops import set_volume_options
+
+
+@runs_on([['distributed', 'replicated', 'distributed-replicated',
+           'dispersed', 'distributed-dispersed',
+           'arbiter', 'distributed-arbiter'], ['glusterfs']])
+class TestUpdatesInOptionsFileOnQuorumChanges(GlusterBaseClass):
+    def setUp(self):
+        # calling GlusterBaseClass setUp
+        self.get_super_method(self, 'setUp')()
+
+        # Setting up Volume
+        ret = self.setup_volume()
+        if not ret:
+            raise ExecutionError("Volume creation/start failed: %s"
+                                 % self.volname)
+        g.log.info("Volme createdand started successfully : %s",
+                   self.volname)
+
+    def tearDown(self):
+        # stopping the volume and Cleaning up the volume
+        ret = self.cleanup_volume()
+        if not ret:
+            raise ExecutionError("Failed Cleanup the Volume %s" % self.volname)
+        g.log.info("Volume deleted successfully : %s", self.volname)
+
+        # Calling GlusterBaseClass tearDown
+        self.get_super_method(self, 'tearDown')()
+
+    def test_updates_in_options_file_on_quorum_changes(self):
+        """
+        Test Case:
+        1. Create and start a volume
+        2. Check the output of '/var/lib/glusterd/options' file
+        3. Store the value of 'global-option-version'
+        4. Set server-quorum-ratio to 70%
+        5. Check the output of '/var/lib/glusterd/options' file
+        6. Compare the value of 'global-option-version' and check
+           if the value of 'server-quorum-ratio' is set to 70%
+        """
+        # Checking 'options' file for quorum related entries
+        cmd = "cat /var/lib/glusterd/options | grep global-option-version"
+        ret, out, _ = g.run(self.mnode, cmd)
+        previous_global_option_version = out.split('=')
+
+        # Setting Quorum ratio in percentage
+        self.quorum_perecent = {'cluster.server-quorum-ratio': '70%'}
+        ret = set_volume_options(self.mnode, 'all', self.quorum_perecent)
+        self.assertTrue(ret, "Failed to set cluster.server-quorum-ratio"
+                        " option on volumes")
+        g.log.info("Successfully set cluster.server-quorum-ratio on cluster")
+
+        # Checking 'options' file for quorum related entries
+        cmd = "cat /var/lib/glusterd/options | grep global-option-version"
+        ret, out, _ = g.run(self.mnode, cmd)
+        new_global_option_version = out.split('=')
+        self.assertEqual(int(previous_global_option_version[1]) + 1,
+                         int(new_global_option_version[1]),
+                         "Failed:The global-option-version didn't change on a"
+                         " volume set operation")
+        g.log.info("The global-option-version was successfully updated in the"
+                   " options file")
+
+        cmd = "cat /var/lib/glusterd/options | grep server-quorum-ratio"
+        ret, out, _ = g.run(self.mnode, cmd)
+        out = out.split("%")
+        self.assertEqual(out[0], "cluster.server-quorum-ratio=70",
+                         "Server-quorum-ratio is not updated in options file")
+        g.log.info("The cluster.server-quorum-ratio was successfully set"
+                   " to 70 in the options  file")