glusterd test cases: validate volume create operation

In this test case, volume create operations such as creating volume
with non existing brick path, already used brick, already existing
volume name, bring the bricks to online with volume start force,
creating a volume with bricks in another cluster, creating a volume
when one of the brick node is down are validated.

Change-Id: I796c8e9023244c592c88116cf3baff52ddade48f
Signed-off-by: Sanju Rakonde <srakonde@redhat.com>

1 files changed, 200 insertions, 0 deletions

diff --git a/tests/functional/glusterd/test_volume_create.py b/tests/functional/glusterd/test_volume_create.py
new file mode 100644
index 000000000..ad4997925
--- /dev/null
+++ b/tests/functional/glusterd/test_volume_create.py
@@ -0,0 +1,200 @@
+#  Copyright (C) 2016-2017  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.
+
+from glusto.core import Glusto as g
+from glustolibs.gluster.gluster_base_class import GlusterBaseClass, runs_on
+from glustolibs.gluster.exceptions import ExecutionError
+from glustolibs.gluster.volume_ops import (volume_create, volume_start,
+                                           get_volume_list)
+from glustolibs.gluster.brick_libs import (get_all_bricks,
+                                           bring_bricks_offline,
+                                           wait_for_bricks_to_be_online)
+from glustolibs.gluster.volume_libs import setup_volume, cleanup_volume
+from glustolibs.gluster.peer_ops import (peer_detach_servers, peer_probe,
+                                         peer_probe_servers, is_peer_connected,
+                                         peer_detach)
+from glustolibs.gluster.lib_utils import form_bricks_list
+from glustolibs.gluster.gluster_init import start_glusterd, stop_glusterd
+import random
+
+
+@runs_on([['distributed'], ['glusterfs']])
+class TestVolumeCreate(GlusterBaseClass):
+
+    @classmethod
+    def setUpClass(cls):
+
+        # Calling GlusterBaseClass setUpClass
+        GlusterBaseClass.setUpClass.im_func(cls)
+
+        ret = cls.validate_peers_are_connected()
+        if not ret:
+            raise ExecutionError("Peers are not in connected state")
+
+    def tearDown(self):
+
+        # start glusterd on all servers
+        ret = start_glusterd(self.servers)
+        if not ret:
+            raise ExecutionError("Failed to start glusterd on all servers")
+
+        for server in self.servers:
+            ret = is_peer_connected(server, self.servers)
+            if not ret:
+                ret = peer_probe_servers(server, self.servers)
+                if not ret:
+                    raise ExecutionError("Failed to peer probe all "
+                                         "the servers")
+
+        # clean up all volumes
+        vol_list = get_volume_list(self.mnode)
+        if vol_list is None:
+            raise ExecutionError("Failed to get the volume list")
+
+        for volume in vol_list:
+            ret = cleanup_volume(self.mnode, volume)
+            if not ret:
+                raise ExecutionError("Unable to delete volume % s" % volume)
+            g.log.info("Volume deleted successfully : %s" % volume)
+
+        GlusterBaseClass.tearDown.im_func(self)
+
+    def test_volume_create(self):
+
+        # create and start a volume
+        self.volume['name'] = "first_volume"
+        self.volname = "first_volume"
+        ret = setup_volume(self.mnode, self.all_servers_info, self.volume)
+        self.assertTrue(ret, "Failed to create and start volume")
+
+        # bring a brick down and volume start force should bring it to online
+
+        g.log.info("Get all the bricks of the volume")
+        bricks_list = get_all_bricks(self.mnode, self.volname)
+        self.assertIsNotNone(bricks_list, "Failed to get the brick list")
+        g.log.info("Successfully got the list of bricks of volume")
+
+        ret = bring_bricks_offline(self.volname, bricks_list[0:2])
+        self.assertTrue(ret, "Failed to bring down the bricks")
+        g.log.info("Successfully brought the bricks down")
+
+        ret, _, _ = volume_start(self.mnode, self.volname, force=True)
+        self.assertEqual(ret, 0, "Failed to start the volume")
+        g.log.info("Volume start with force is success")
+
+        ret = wait_for_bricks_to_be_online(self.mnode, self.volname)
+        self.assertTrue(ret, "Failed to bring the bricks online")
+        g.log.info("Volume start with force successfully brought all the "
+                   "bricks online")
+
+        # create volume with previously used bricks and different volume name
+        self.volname = "second_volume"
+        ret, _, _ = volume_create(self.mnode, self.volname, bricks_list)
+        self.assertNotEqual(ret, 0, "Expected: It should fail to create a "
+                            "volume with previously used bricks. Actual:"
+                            "Successfully created the volume with previously"
+                            " used bricks")
+        g.log.info("Failed to create the volume with previously used bricks")
+
+        # create a volume with already existing volume name
+        self.volume['name'] = "first_volume"
+        ret = setup_volume(self.mnode, self.all_servers_info, self.volume)
+        self.assertTrue(ret, "Expected: It should fail to create a volume"
+                        " with already existing volume name. Actual: "
+                        "Successfully created the volume with "
+                        "already existing volname")
+        g.log.info("Failed to create the volume with already existing volname")
+
+        # creating a volume with non existing brick path should fail
+
+        self.volname = "second_volume"
+        bricks_list = form_bricks_list(self.mnode, self.volname,
+                                       len(self.servers), self.servers,
+                                       self.all_servers_info)
+        nonexisting_brick_index = random.randint(0, len(bricks_list) - 1)
+        non_existing_brick = bricks_list[nonexisting_brick_index].split(":")[0]
+        non_existing_path = ":/brick/non_existing_path"
+        non_existing_brick = non_existing_brick + non_existing_path
+        bricks_list[nonexisting_brick_index] = non_existing_brick
+
+        ret, _, _ = volume_create(self.mnode, self.volname, bricks_list)
+        self.assertNotEqual(ret, 0, "Expected: Creating a volume with non "
+                            "existing brick path should fail. Actual: "
+                            "Successfully created the volume with "
+                            "non existing brick path")
+        g.log.info("Failed to create the volume with non existing brick path")
+
+        # cleanup the volume and peer detach all servers. form two clusters,try
+        # to create a volume with bricks whose nodes are in different clusters
+
+        # cleanup volumes
+        vol_list = get_volume_list(self.mnode)
+        self.assertIsNotNone(vol_list, "Failed to get the volume list")
+
+        for volume in vol_list:
+            ret = cleanup_volume(self.mnode, volume)
+            self.assertTrue(ret, "Unable to delete volume % s" % volume)
+
+        # peer detach all servers
+        ret = peer_detach_servers(self.mnode, self.servers)
+        self.assertTrue(ret, "Peer detach to all servers is failed")
+        g.log.info("Peer detach to all the servers is success")
+
+        # form cluster 1
+        ret, _, _ = peer_probe(self.servers[0], self.servers[1])
+        self.assertEqual(ret, 0, "Peer probe from %s to %s is failed"
+                         % (self.servers[0], self.servers[1]))
+        g.log.info("Peer probe is success from %s to %s"
+                   % (self.servers[0], self.servers[1]))
+
+        # form cluster 2
+        ret, _, _ = peer_probe(self.servers[2], self.servers[3])
+        self.assertEqual(ret, 0, "Peer probe from %s to %s is failed"
+                         % (self.servers[2], self.servers[3]))
+        g.log.info("Peer probe is success from %s to %s"
+                   % (self.servers[2], self.servers[3]))
+
+        # Creating a volume with bricks which are part of another
+        # cluster should fail
+        ret = setup_volume(self.mnode, self.all_servers_info, self.volume)
+        self.assertFalse(ret, "Expected: Creating a volume with bricks"
+                         " which are part of another cluster should fail."
+                         " Actual: Successfully created the volume with "
+                         "bricks which are part of another cluster")
+        g.log.info("Failed to create the volume with bricks which are "
+                   "part of another cluster")
+
+        # form a cluster, bring a node down. try to create a volume when one of
+        # the brick node is down
+        ret, _, _ = peer_detach(self.servers[2], self.servers[3])
+        self.assertEqual(ret, 0, "Peer detach is failed")
+        g.log.info("Peer detach is success")
+
+        ret = peer_probe_servers(self.mnode, self.servers)
+        self.assertTrue(ret, "Peer probe is failed")
+        g.log.info("Peer probe to all the servers is success")
+
+        random_server = self.servers[random.randint(1, len(self.servers) - 1)]
+        ret = stop_glusterd(random_server)
+        self.assertTrue(ret, "Glusterd is stopped successfully")
+
+        self.volume['name'] = "third_volume"
+        ret = setup_volume(self.mnode, self.all_servers_info, self.volume)
+        self.assertFalse(ret, "Expected: It should fail to create a volume "
+                         "when one of the node is down. Actual: Successfully "
+                         "created the volume with bbrick whose node is down")
+
+        g.log.info("Failed to create the volume with brick whose node is down")