Replace use of testtools.testcase.TestSkipped

This has been deprecated for removal [1]. Use the stdlib variant
instead.

[1] https://github.com/testing-cabal/testtools/commit/59b890db3c

Change-Id: Iab4a5b050f9960b1e125aa9dd657cc690f06d32f
Signed-off-by: Stephen Finucane <stephenfin@redhat.com>

tooz/tests/__init__.py

@@ -16,6 +16,7 @@
 
 import functools
 import os
+import unittest
 
 import fixtures
 from oslo_utils import uuidutils
@@ -34,7 +35,7 @@ def _skip_decorator(func):
         try:
             return func(*args, **kwargs)
         except tooz.NotImplemented as e:
-            raise testcase.TestSkipped(str(e))
+            raise unittest.SkipTest(str(e))
     return skip_if_not_implemented
 
 

tooz/tests/test_coordination.py

@@ -16,6 +16,7 @@
 
 import threading
 import time
+import unittest
 from unittest import mock
 import urllib
 
@@ -304,15 +305,16 @@ class TestAPI(tests.TestWithCoordinator):
 
     def test_heartbeat(self):
         if not self._coord.requires_beating:
-            raise testcase.TestSkipped("Test not applicable (heartbeating"
-                                       " not required)")
+            raise unittest.SkipTest(
+                "Test not applicable (heartbeating not required)"
+            )
         self._coord.heartbeat()
 
     def test_heartbeat_loop(self):
         if not self._coord.requires_beating:
-            raise testcase.TestSkipped("Test not applicable (heartbeating"
-                                       " not required)")
-
+            raise unittest.SkipTest(
+                "Test not applicable (heartbeating not required)"
+            )
         heart = self._coord.heart
         self.assertFalse(heart.is_alive())
         heart.start()