Improving stw and adding ability to clean-up mininet properly between runs.

Change-Id: Idb163bfa0cfd13b0ed7b9e4715ca7a2c0ffe69f6
diff --git a/tools/test/scenarios/smoke-internal.xml b/tools/test/scenarios/smoke-internal.xml
new file mode 100644
index 0000000..01c61d5
--- /dev/null
+++ b/tools/test/scenarios/smoke-internal.xml
@@ -0,0 +1,30 @@
+<!--
+  ~ Copyright 2016 Open Networking Laboratory
+  ~
+  ~ 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.
+  -->
+<scenario name="smoke-internal" description="Internals of ONOS smoke test">
+    <import file="${ONOS_SCENARIOS}/net-smoke.xml"/>
+
+    <import file="${ONOS_SCENARIOS}/archetypes.xml"/>
+    <dependency name="Archetypes" requires="~Net-Smoke"/>
+
+    <import file="${ONOS_SCENARIOS}/drivers-test.xml"/>
+    <dependency name="Drivers-Test" requires="~Net-Smoke,~Archetypes"/>
+
+    <import file="${ONOS_SCENARIOS}/meta-apps-test.xml"/>
+    <dependency name="Meta-App" requires="~Net-Smoke,~Drivers-Test"/>
+
+    <import file="${ONOS_SCENARIOS}/netcfg.xml"/>
+    <dependency name="Netcfg" requires="~Meta-App"/>
+</scenario>