Add kitchen tests for logging

Change-Id: Ie5bf0be675633f251cc74cb54f00696abf008639
diff --git a/tests/pillar/single.sls b/tests/pillar/single.sls
index 1998406..d52812d 100644
--- a/tests/pillar/single.sls
+++ b/tests/pillar/single.sls
@@ -28,6 +28,15 @@
       location: /etc/keystone/fernet-keys/
     notification: false
     notification_format: cadf
+    logging:
+      log_appender: false
+      log_handlers:
+        watchedfile:
+          enabled: true
+        fluentd:
+          enabled: false
+        ossyslog:
+          enabled: false
     extra_config:
       federation:
         cache_group_membership_in_db: true