Adding new unit tests and removed some unused functions

New unit tests help improve test coverage of common/Glusterfs.py code
Also removed a function that was no longer being used.

Change-Id: Iaa0eed3d2b9ffcc148c1e00b28322ebf93b3f13c
Signed-off-by: Thiago da Silva <thiago@redhat.com>
Reviewed-on: http://review.gluster.org/6053
Reviewed-by: Luis Pabon <lpabon@redhat.com>
Tested-by: Luis Pabon <lpabon@redhat.com>

gluster/swift/common/Glusterfs.py

@@ -21,10 +21,9 @@ import logging
 import urllib
 
 from ConfigParser import ConfigParser, NoSectionError, NoOptionError
-from swift.common.utils import TRUE_VALUES, search_tree
+from swift.common.utils import TRUE_VALUES
 from gluster.swift.common.fs_utils import do_ismount
-from gluster.swift.common.exceptions import GlusterfsException, \
-    FailureToMountError
+from gluster.swift.common.exceptions import FailureToMountError
 
 #
 # Read the fs.conf file once at startup (module load)
@@ -286,28 +285,3 @@ def _get_export_list():
                 export_list.append(item.split(':')[1].strip(' '))
 
     return export_list
-
-
-def get_mnt_point(vol_name, conf_dir=SWIFT_DIR, conf_file="object-server*"):
-    """
-    Read the object-server's configuration file and return
-    the device value.
-
-    :param vol_name: target GlusterFS volume name
-    :param conf_dir: Swift configuration directory root
-    :param conf_file: configuration file name for which to search
-    :returns full path to given target volume name
-    :raises GlusterfsException if unable to fetch mount point root from
-            configuration files
-    """
-    mnt_dir = ''
-    conf_files = search_tree(conf_dir, conf_file, '.conf')
-    if not conf_files:
-        raise GlusterfsException("Config file, %s, in directory, %s, "
-                                 "not found" % (conf_file, conf_dir))
-    _conf = ConfigParser()
-    if _conf.read(conf_files[0]):
-        mnt_dir = _conf.get('DEFAULT', 'devices', '')
-        return os.path.join(mnt_dir, vol_name)
-    else:
-        raise GlusterfsException("Config file, %s, is empty" % conf_files[0])

test/unit/common/test_Glusterfs.py

@@ -16,6 +16,8 @@
 import unittest
 import os, fcntl, errno, shutil
 import time
+import StringIO
+import mock
 from tempfile import mkdtemp
 import gluster.swift.common.Glusterfs as gfs
 
@@ -124,5 +126,111 @@ class TestGlusterfs(unittest.TestCase):
         finally:
             shutil.rmtree(tmpdir)
 
+    def test_get_drive_mount_point_name_unique_id_None(self):
+        """
+        Using the public method mount to test _get_drive_mount_point_name
+        """
+        try:
+            tmpdir = mkdtemp()
+            root   = os.path.join(tmpdir, 'mnt/gluster-object')
+            drive  = 'test'
+
+            _init_mock_variables(tmpdir)
+            gfs._allow_mount_per_server = True
+            self.assertTrue(gfs.mount(root, drive))
+        finally:
+            gfs._allow_mount_per_server = False
+            _reset_mock_variables()
+            shutil.rmtree(tmpdir)
+
+    def test_get_drive_mount_point_name_unique_id_exists(self):
+        """
+        Using the public method mount to test _get_drive_mount_point_name
+        and the _unique_id is already defined
+        """
+        try:
+            tmpdir = mkdtemp()
+            root   = os.path.join(tmpdir, 'mnt/gluster-object')
+            drive  = 'test'
+
+            _init_mock_variables(tmpdir)
+            gfs._allow_mount_per_server = True
+            gfs._unique_id = 0
+            self.assertTrue(gfs.mount(root, drive))
+        finally:
+            gfs._allow_mount_per_server = False
+            gfs._unique_id = None
+            _reset_mock_variables()
+            shutil.rmtree(tmpdir)
+
+    def test_invalid_drive_name(self):
+        try:
+            tmpdir = mkdtemp()
+            root   = os.path.join(tmpdir, 'mnt/gluster-object')
+            drive  = 'te st'
+
+            _init_mock_variables(tmpdir)
+            self.assertFalse(gfs.mount(root, drive))
+        finally:
+            _reset_mock_variables()
+            shutil.rmtree(tmpdir)
+
+    def test_already_mounted(self):
+        try:
+            tmpdir = mkdtemp()
+            root   = os.path.join(tmpdir, 'mnt/gluster-object')
+            drive  = 'test'
+
+            _init_mock_variables(tmpdir)
+            def mock_do_ismount(path):
+                return True
+
+            with mock.patch("gluster.swift.common.Glusterfs.do_ismount",
+                mock_do_ismount):
+                self.assertTrue(gfs.mount(root, drive))
+        finally:
+            _reset_mock_variables()
+            shutil.rmtree(tmpdir)
+
+    def test_get_export_list(self):
+        try:
+            tmpdir = mkdtemp()
+            root   = os.path.join(tmpdir, 'mnt/gluster-object')
+            drive  = 'test'
+
+            # undo mocking of _get_export_list
+            tmp_get_export_list = gfs._get_export_list
+            _init_mock_variables(tmpdir)
+            gfs._get_export_list = tmp_get_export_list
+
+            def mock_os_popen(cmd):
+                mock_string = """
+                Volume Name: test
+                Type: Distribute
+                Volume ID: 361cfe52-75c0-4a76-88af-0092a92270b5
+                Status: Started
+                Number of Bricks: 1
+                Transport-type: tcp
+                Bricks:
+                Brick1: myhost:/export/brick/test
+
+                Volume Name: test2
+                Type: Distribute
+                Volume ID: a6df4e2b-6040-4e19-96f1-b8d8c0a29528
+                Status: Started
+                Number of Bricks: 1
+                Transport-type: tcp
+                Bricks:
+                Brick1: myhost:/export/brick/test2
+                """
+                return StringIO.StringIO(mock_string)
+
+            # mock os_popen
+            with mock.patch('os.popen', mock_os_popen):
+                self.assertTrue(gfs.mount(root, drive))
+        finally:
+            _reset_mock_variables()
+            shutil.rmtree(tmpdir)
+
     def tearDown(self):
         _reset_mock_variables()

tox.ini

@@ -14,7 +14,7 @@ deps =
   --download-cache={homedir}/.pipcache
   -r{toxinidir}/tools/test-requires
 changedir = {toxinidir}/test/unit
-commands = nosetests -v --exe --with-xunit --with-coverage --cover-package gluster --cover-erase --cover-xml --cover-html --cover-branches {posargs}
+commands = nosetests -v --exe --with-xunit --with-coverage --cover-package gluster --cover-erase --cover-xml --cover-html --cover-branches --with-html-output {posargs}
 
 [tox:jenkins]
 downloadcache = ~/cache/pip