diff --git a/src/emuvim/test/unittests/test_emulator.py b/src/emuvim/test/unittests/test_emulator.py
index b5612a1..94db55f 100755
--- a/src/emuvim/test/unittests/test_emulator.py
+++ b/src/emuvim/test/unittests/test_emulator.py
@@ -117,6 +117,57 @@
 
 class testEmulatorNetworking( SimpleTestTopology ):
 
+    def testSDNChainingSingleService_withLearning(self):
+        """
+        Create a two data centers and interconnect them with additional
+        switches between them.
+        Uses Ryu SDN controller.
+        Connect the Docker hosts to different datacenters and setup the links between.
+        """
+        # create network
+        self.createNet(
+            nswitches=3, ndatacenter=2, nhosts=0, ndockers=0,
+            autolinkswitches=True,
+            controller=RemoteController,
+            enable_learning=True)
+        # setup links
+        self.net.addLink(self.dc[0], self.s[0])
+        self.net.addLink(self.s[2], self.dc[1])
+        # start Mininet network
+        self.startNet()
+
+        # add compute resources
+        vnf1 = self.dc[0].startCompute("vnf1", network=[{'id':'intf1', 'ip':'10.0.10.1/24'}])
+        vnf2 = self.dc[1].startCompute("vnf2", network=[{'id':'intf2', 'ip':'10.0.10.2/24'}])
+        # check number of running nodes
+        self.assertTrue(len(self.getContainernetContainers()) == 2)
+        self.assertTrue(len(self.net.hosts) == 2)
+        self.assertTrue(len(self.net.switches) == 5)
+        # check status
+        # check get status
+        s1 = self.dc[0].containers.get("vnf1").getStatus()
+        print s1
+        self.assertTrue(s1["name"] == "vnf1")
+        self.assertTrue(s1["state"]["Running"])
+        self.assertTrue(s1["network"][0]['intf_name'] == 'intf1')
+        self.assertTrue(s1["network"][0]['ip'] == '10.0.10.1/24')
+
+        s2 = self.dc[1].containers.get("vnf2").getStatus()
+        print s2
+        self.assertTrue(s2["name"] == "vnf2")
+        self.assertTrue(s2["state"]["Running"])
+        self.assertTrue(s2["network"][0]['intf_name'] == 'intf2')
+        self.assertTrue(s2["network"][0]['ip'] == '10.0.10.2/24')
+
+        # should be connected because learning = True
+        self.assertTrue(self.net.ping([vnf1, vnf2]) <= 0.0)
+        # setup links
+        self.net.setChain('vnf1', 'vnf2', 'intf1', 'intf2', bidirectional=True, cmd='add-flow')
+        # should still be connected
+        self.assertTrue(self.net.ping([vnf1, vnf2]) <= 0.0)
+        # stop Mininet network
+        self.stopNet()
+
     def testSDNChainingSingleService(self):
         """
         Create a two data centers and interconnect them with additional
diff --git a/src/emuvim/test/unittests/test_heatapi_keystone_get_token.json b/src/emuvim/test/unittests/test_heatapi_keystone_get_token.json
old mode 100644
new mode 100755
diff --git a/src/emuvim/test/unittests/test_heatapi_template_chaining.json b/src/emuvim/test/unittests/test_heatapi_template_chaining.json
old mode 100644
new mode 100755
diff --git a/src/emuvim/test/unittests/test_heatapi_template_create_stack.json b/src/emuvim/test/unittests/test_heatapi_template_create_stack.json
old mode 100644
new mode 100755
diff --git a/src/emuvim/test/unittests/test_heatapi_template_update_stack.json b/src/emuvim/test/unittests/test_heatapi_template_update_stack.json
old mode 100644
new mode 100755
diff --git a/src/emuvim/test/unittests/test_restapi.py b/src/emuvim/test/unittests/test_restapi.py
index ea0b693..268b12b 100755
--- a/src/emuvim/test/unittests/test_restapi.py
+++ b/src/emuvim/test/unittests/test_restapi.py
@@ -92,14 +92,19 @@
 
         print('network add vnf1 vnf2->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
         print('->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
-        subprocess.call("son-emu-cli network add -src vnf1 -dst vnf2 -b -c 10", shell=True)
+        output = subprocess.check_output("son-emu-cli network add -src vnf1 -dst vnf2 -b -c 10", shell=True)
+        self.assertTrue("add-flow" in output)
+        self.assertTrue("success" in output)
+
         print('network remove vnf1 vnf2->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
         print('->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
-        subprocess.call("son-emu-cli network remove -src vnf1 -dst vnf2 -b", shell=True)
+        output = subprocess.check_output("son-emu-cli network remove -src vnf1 -dst vnf2 -b", shell=True)
+        self.assertTrue("del-flows" in output)
+        self.assertTrue("success" in output)
 
         print('>>>>> checking --> son-emu-cli compute stop -d datacenter0 -n vnf2 ->>>>>>')
         print('->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
-        subprocess.call("son-emu-cli compute stop -d datacenter0 -n vnf2", shell=True)
+        output = subprocess.check_output("son-emu-cli compute stop -d datacenter0 -n vnf2", shell=True)
 
         # check number of running nodes
         self.assertTrue(len(self.getContainernetContainers()) == 2)
@@ -111,7 +116,6 @@
 
         print('>>>>> checking --> son-emu-cli compute list ->>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
         print('->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
-        subprocess.call("son-emu-cli compute list", shell=True)
         output = subprocess.check_output("son-emu-cli compute list", shell=True)
 
         # check datacenter list result
@@ -119,7 +123,6 @@
 
         print('>>>>> checking --> son-emu-cli compute status -d datacenter0 -n vnf1 ->>>>')
         print('->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
-        subprocess.call("son-emu-cli compute status -d datacenter0 -n vnf1", shell=True)
         output = subprocess.check_output("son-emu-cli compute status -d datacenter0 -n vnf1", shell=True)
         output = ast.literal_eval(output)
 
@@ -129,18 +132,13 @@
 
         print('>>>>> checking --> son-emu-cli datacenter list ->>>>>>>>>>>>>>>>>>>>>>>>>>')
         print('->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
-        subprocess.call("son-emu-cli datacenter list", shell=True)
         output = subprocess.check_output("son-emu-cli datacenter list", shell=True)
-
         # check datacenter list result
-
         self.assertTrue("datacenter0" in output)
 
         print('->>>>> checking --> son-emu-cli datacenter status -d datacenter0 ->>>>>>>>')
         print('->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
-        subprocess.call("son-emu-cli datacenter status -d datacenter0", shell=True)
         output = subprocess.check_output("son-emu-cli datacenter status -d datacenter0", shell=True)
-
         # check datacenter status result
         self.assertTrue("datacenter0" in output)