Fix broken exception handling on unit tests

Unit tests are now broken for python-manilaclient. We used to
expect an argparse exception for some cases but now we should be
expecting a ParserException.

Change-Id: Ibf47932ff848906d8d71a0affe2af564ba962abb

manilaclient/tests/unit/osc/v2/test_share.py

@@ -13,7 +13,6 @@
 #   under the License.
 #
 
-import argparse
 import ddt
 from unittest import mock
 import uuid
@@ -1052,7 +1051,7 @@ class TestShareList(TestShare):
         verifylist = [
             ("limit", -2),
         ]
-        self.assertRaises(argparse.ArgumentTypeError, self.check_parser,
+        self.assertRaises(osc_utils.ParserException, self.check_parser,
                           self.cmd, arglist, verifylist)
 
     def test_share_list_name_description_filter(self):

manilaclient/tests/unit/osc/v2/test_share_groups.py

@@ -11,21 +11,17 @@
 #   under the License.
 #
 
-import argparse
 from unittest import mock
 import uuid
 
 from osc_lib import exceptions
 from osc_lib import exceptions as osc_exceptions
-
 from osc_lib import utils as oscutils
 
-from manilaclient.osc import utils
-
 from manilaclient import api_versions
-
+from manilaclient.osc import utils
 from manilaclient.osc.v2 import share_groups as osc_share_groups
-
+from manilaclient.tests.unit.osc import osc_utils
 from manilaclient.tests.unit.osc.v2 import fakes as manila_fakes
 
 
@@ -795,7 +791,7 @@ class TestShareGroupList(TestShareGroup):
         verifylist = [
             ("limit", -2),
         ]
-        self.assertRaises(argparse.ArgumentTypeError, self.check_parser,
+        self.assertRaises(osc_utils.ParserException, self.check_parser,
                           self.cmd, arglist, verifylist)
 
     # TODO(archanaserver): Add test cases for share-server-id,