[Test] Add test to check directory permissions wipe out

Test case:
1. Create a 1 brick pure distributed volume.
2. Start the volume and mount it on a client node using FUSE.
3. Create a directory on the mount point.
4. Check trusted.glusterfs.dht xattr on the backend brick.
5. Add brick to the volume using force.
6. Do lookup from the mount point.
7. Check the directory permissions from the backend bricks.
8. Check trusted.glusterfs.dht xattr on the backend bricks.
9. From mount point cd into the directory.
10. Check the directory permissions from backend bricks.
11. Check trusted.glusterfs.dht xattr on the backend bricks.

Change-Id: I1ba2c07560bf4bdbf7de5d3831e5de71173b64a2
Signed-off-by: kshithijiyer <kshithij.ki@gmail.com>

1 files changed, 132 insertions, 0 deletions

diff --git a/tests/functional/dht/test_wipe_out_directory_permissions.py b/tests/functional/dht/test_wipe_out_directory_permissions.py
new file mode 100644
index 000000000..485aaf0d5
--- /dev/null
+++ b/tests/functional/dht/test_wipe_out_directory_permissions.py
@@ -0,0 +1,132 @@
+#  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.
+
+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.brick_libs import get_all_bricks
+from glustolibs.gluster.brick_ops import add_brick
+from glustolibs.gluster.lib_utils import form_bricks_list
+from glustolibs.gluster.glusterdir import mkdir
+from glustolibs.gluster.glusterfile import get_file_stat, get_fattr
+
+
+@runs_on([['distributed'], ['glusterfs']])
+class TestDhtWipeOutDirectoryPremissions(GlusterBaseClass):
+
+    def setUp(self):
+
+        self.get_super_method(self, 'setUp')()
+
+        # Changing dist_count to 1
+        self.volume['voltype']['dist_count'] = 1
+
+        # Creating Volume and mounting the volume
+        ret = self.setup_volume_and_mount_volume([self.mounts[0]])
+        if not ret:
+            raise ExecutionError("Volume creation or mount failed: %s"
+                                 % self.volname)
+
+        # Assign a variable for the first_client
+        self.first_client = self.mounts[0].client_system
+
+    def tearDown(self):
+
+        # Unmounting and cleaning volume
+        ret = self.unmount_volume_and_cleanup_volume([self.mounts[0]])
+        if not ret:
+            raise ExecutionError("Unable to delete volume %s" % self.volname)
+
+        self.get_super_method(self, 'tearDown')()
+
+    def _check_permissions_of_dir(self):
+        """Check permissions of dir created."""
+        for brick_path in get_all_bricks(self.mnode, self.volname):
+            node, path = brick_path.split(":")
+            ret = get_file_stat(node, "{}/dir".format(path))
+            self.assertEqual(int(ret["access"]), 755,
+                             "Unexpected:Permissions of dir is %s and not %d"
+                             % (ret["access"], 755))
+        g.log.info("Permissions of dir directory is proper on all bricks")
+
+    def _check_trusted_glusterfs_dht_on_all_bricks(self):
+        """Check trusted.glusterfs.dht xattr on the backend bricks"""
+        bricks = get_all_bricks(self.mnode, self.volname)
+        possible_values = ["0x000000000000000000000000ffffffff",
+                           "0x00000000000000000000000000000000"]
+        for brick_path in bricks:
+            node, path = brick_path.split(":")
+            ret = get_fattr(node, "{}/dir".format(path),
+                            "trusted.glusterfs.dht")
+            self.assertEqual(
+                ret, possible_values[bricks.index(brick_path)],
+                "Value of trusted.glusterfs.dht is not as expected")
+        g.log.info("Successfully checked value of trusted.glusterfs.dht.")
+
+    def test_wipe_out_directory_permissions(self):
+        """
+        Test case:
+        1. Create a 1 brick pure distributed volume.
+        2. Start the volume and mount it on a client node using FUSE.
+        3. Create a directory on the mount point.
+        4. Check trusted.glusterfs.dht xattr on the backend brick.
+        5. Add brick to the volume using force.
+        6. Do lookup from the mount point.
+        7. Check the directory permissions from the backend bricks.
+        8. Check trusted.glusterfs.dht xattr on the backend bricks.
+        9. From mount point cd into the directory.
+        10. Check the directory permissions from backend bricks.
+        11. Check trusted.glusterfs.dht xattr on the backend bricks.
+        """
+        # Create a directory on the mount point
+        self.dir_path = "{}/dir".format(self.mounts[0].mountpoint)
+        ret = mkdir(self.first_client, self.dir_path)
+        self.assertTrue(ret, "Failed to create directory dir")
+
+        # Check trusted.glusterfs.dht xattr on the backend brick
+        self._check_trusted_glusterfs_dht_on_all_bricks()
+
+        # Add brick to the volume using force
+        brick_list = form_bricks_list(self.mnode, self.volname, 1,
+                                      self.servers, self.all_servers_info)
+        self.assertIsNotNone(brick_list,
+                             "Failed to get available space on mount point")
+        ret, _, _ = add_brick(self.mnode, self.volname, brick_list, force=True)
+        self.assertEqual(ret, 0, ("Volume {}: Add-brick failed".format
+                                  (self.volname)))
+
+        # Do a lookup from the mount point
+        cmd = "ls -lR {}".format(self.dir_path)
+        ret, _, _ = g.run(self.first_client, cmd)
+        self.assertEqual(ret, 0, "Failed to lookup")
+        g.log.info("Lookup successful")
+
+        # Check the directory permissions from the backend bricks
+        self._check_permissions_of_dir()
+
+        # Check trusted.glusterfs.dht xattr on the backend bricks
+        self._check_trusted_glusterfs_dht_on_all_bricks()
+
+        # From mount point cd into the directory
+        ret, _, _ = g.run(self.first_client, "cd {};cd ..;cd {}"
+                          .format(self.dir_path, self.dir_path))
+        self.assertEqual(ret, 0, "Unable to cd into dir from mount point")
+
+        # Check the directory permissions from backend bricks
+        self._check_permissions_of_dir()
+
+        # Check trusted.glusterfs.dht xattr on the backend bricks
+        self._check_trusted_glusterfs_dht_on_all_bricks()