fix inet dns test

Author: jenniexie

src/test-apps/happy/tests/standalone/inet/test_inet_dns_01.py

@@ -40,11 +40,13 @@ class test_inet_dns(unittest.TestCase):
     def setUp(self):
         if "WEAVE_SYSTEM_CONFIG_USE_LWIP" in os.environ.keys() and os.environ["WEAVE_SYSTEM_CONFIG_USE_LWIP"] == "1":
             self.using_lwip = True
+            topology_shell_script = os.path.dirname(os.path.realpath(__file__)) + \
+            "/topology/two_nodes_on_tap_wifi.sh"
         else:
             self.using_lwip = False
+            topology_shell_script = os.path.dirname(os.path.realpath(__file__)) + \
+            "/topology/two_nodes_wifi.sh"
 
-        topology_shell_script = os.path.dirname(os.path.realpath(__file__)) + \
-            "/topology/two_nodes_on_tap_wifi.sh"
         output = subprocess.call([topology_shell_script])
 
     def tearDown(self):

src/test-apps/happy/tests/standalone/inet/topology/two_nodes_on_tap_wifi.sh

@@ -26,5 +26,4 @@ happy-node-add node01
 happy-node-add --ap onhub
 happy-node-join onhub Home
 happy-node-join --tap node01 Home
-happy-network-route --prefix 10.0.1.0 Home onhub
 happy-internet --node onhub --interface ${IFACE} --isp ${IFACE//[0-9]/} --seed 249

src/test-apps/happy/tests/standalone/inet/topology/two_nodes_wifi.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+#
+#    Copyright (c) 2017 Nest Labs, Inc.
+#    All rights reserved.
+#
+#    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.
+#
+
+# Steps to manually build 2 nodes happy topology for dns resolution test
+IFACE=$(route | grep '^default' | grep -o '[^ ]*$')
+happy-state-delete
+happy-network-add Home wifi
+happy-network-address --id Home --add 10.0.1.0
+happy-node-add node01
+happy-node-add --ap onhub
+happy-node-join onhub Home
+happy-node-join node01 Home
+happy-network-route --prefix 10.0.1.0 Home onhub
+happy-internet --node onhub --interface ${IFACE} --isp ${IFACE//[0-9]/} --seed 249