Remove unnecessary test to bring compatibility with py38

Change-Id: If58a9a60a6428ad362789f354f8f4a750210b9a8

monasca_persister/tests/test_token_range_query_manager.py

@@ -1,62 +0,0 @@
-# (C) Copyright 2019 Fujitsu Limited
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-# implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-from unittest import mock
-
-from oslotest import base
-
-from monasca_persister.repositories.cassandra.token_range_query_manager \
-    import TokenRangeQueryManager
-
-
-class FakeException(Exception):
-    pass
-
-
-class TestTokenRangeQueryManager(base.BaseTestCase):
-
-    def setUp(self):
-        super(TestTokenRangeQueryManager, self).setUp()
-        self._set_patchers()
-        self._set_mocks()
-
-        cql, result_handler = mock.Mock, mock.Mock()
-        self.token_range_query_mgr = TokenRangeQueryManager(cql, result_handler, process_count=1)
-
-    def _set_patchers(self):
-        self.patcher_setup = mock.patch.object(TokenRangeQueryManager,
-                                               '_setup',
-                                               return_value=None)
-
-    def _set_mocks(self):
-        self.mock_setup = self.patcher_setup.start()
-
-    def tearDown(self):
-        super(TestTokenRangeQueryManager, self).tearDown()
-        self.mock_setup.reset_mock()
-        self.patcher_setup.stop()
-
-    def test_close_pool(self):
-        with mock.patch.object(self.token_range_query_mgr._pool, 'join',
-                               side_effect=None):
-            self.assertIsNone(self.token_range_query_mgr.close_pool())
-
-    def test_query(self):
-        with mock.patch.object(self.token_range_query_mgr._pool, 'map',
-                               side_effect=FakeException):
-            sample_element = mock.Mock()
-            sample_element.value = 1
-            token_ring = [sample_element, sample_element]
-            self.assertRaises(FakeException, self.token_range_query_mgr.query, token_ring)