Tests use setUp rather than init

Test classes should put their initialization code into setUp rather
than __init__. It gets called when the test starts.

Change-Id: Ice0631c864334435b895bad145f3b5b14dc3bffc

keystone/tests/test_cache.py

@@ -74,9 +74,6 @@ class TestProxyValue(object):
 
 
 class CacheRegionTest(tests.TestCase):
-    def __init__(self, *args, **kwargs):
-        super(CacheRegionTest, self).__init__(*args, **kwargs)
-        self.region = None
 
     def setUp(self):
         super(CacheRegionTest, self).setUp()
@@ -215,9 +212,6 @@ class CacheRegionTest(tests.TestCase):
 
 
 class CacheNoopBackendTest(tests.TestCase):
-    def __init__(self, *args, **kwargs):
-        super(CacheNoopBackendTest, self).__init__(*args, **kwargs)
-        self.region = None
 
     def setUp(self):
         super(CacheNoopBackendTest, self).setUp()

keystone/tests/test_sql_migrate_extensions.py

@@ -140,8 +140,8 @@ class EndpointFilterExtension(test_sql_upgrade.SqlMigrateBase):
 class FederationExtension(test_sql_upgrade.SqlMigrateBase):
     """Test class for ensuring the Federation SQL."""
 
-    def __init__(self, *args, **kwargs):
-        super(FederationExtension, self).__init__(*args, **kwargs)
+    def setUp(self):
+        super(FederationExtension, self).setUp()
         self.identity_provider = 'identity_provider'
         self.federation_protocol = 'federation_protocol'
         self.mapping = 'mapping'

keystone/tests/test_v3_federation.py

@@ -40,9 +40,6 @@ class FederationTests(test_v3.RestfulTestCase):
     EXTENSION_NAME = 'federation'
     EXTENSION_TO_ADD = 'federation_extension'
 
-    def __init__(self, *args, **kwargs):
-        super(FederationTests, self).__init__(*args, **kwargs)
-
     def setup_database(self):
         super(FederationTests, self).setup_database()
         package_name = "%s.%s.migrate_repo" % (contrib.__name__,