Variable local_iface_name is read before it is set

Moving variable setting before reading
Verified via TC:
yardstick/samples/vnf_samples/nsut/ping/tc_ping_heat_context.yaml

JIRA: YARDSTICK-899

Change-Id: Ia2feac1ed4e67dccd02446ba27afc9d40e87be35
Signed-off-by: Jiri Prokes <jirix.x.prokes@intel.com>

2 files changed, 5 insertions, 6 deletions

diff --git a/tests/unit/network_services/vnf_generic/vnf/test_tg_ping.py b/tests/unit/network_services/vnf_generic/vnf/test_tg_ping.py
index c1b2d27eb..ab3570740 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_tg_ping.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_tg_ping.py
@@ -228,7 +228,7 @@ class TestPingTrafficGen(unittest.TestCase):
     CMD_KWARGS = {
         'target_ip': u'152.16.100.20',
         'local_ip': u'152.16.100.19',
-        'local_if_name': u'xe0',
+        'local_if_name': u'xe0_fake',
     }
 
     @mock.patch("yardstick.ssh.SSH")
@@ -270,7 +270,7 @@ class TestPingTrafficGen(unittest.TestCase):
         mock_ssh(ssh, spec=VnfSshHelper, exec_result=(0, "success", ""))
         ping_traffic_gen = PingTrafficGen('vnf1', self.VNFD_0)
         ping_traffic_gen.setup_helper.ssh_helper = mock.MagicMock(
-            **{"execute.return_value": (0, "success", "")})
+            **{"execute.return_value": (0, "xe0_fake", "")})
         self.assertIsInstance(ping_traffic_gen.ssh_helper, mock.Mock)
         self.assertEqual(ping_traffic_gen._result, {})
 
@@ -278,12 +278,12 @@ class TestPingTrafficGen(unittest.TestCase):
 
         self.assertEqual(
             ping_traffic_gen.vnfd_helper.interfaces[0]['virtual-interface']['local_iface_name'],
-            'success')
+            'xe0_fake')
         self.assertEqual(self.CMD_KWARGS, ping_traffic_gen.resource_helper.cmd_kwargs)
         self.assertIsNotNone(ping_traffic_gen._result)
 
     @mock.patch("yardstick.ssh.SSH")
-    def test_listen_traffic(self, ssh):
+    def test_listen_traffic(self, *args):
         ping_traffic_gen = PingTrafficGen('vnf1', self.VNFD_0)
         self.assertIsNone(ping_traffic_gen.listen_traffic({}))
 
diff --git a/yardstick/network_services/vnf_generic/vnf/tg_ping.py b/yardstick/network_services/vnf_generic/vnf/tg_ping.py
index 30a917862..5238a5f02 100644
--- a/yardstick/network_services/vnf_generic/vnf/tg_ping.py
+++ b/yardstick/network_services/vnf_generic/vnf/tg_ping.py
@@ -126,11 +126,10 @@ class PingTrafficGen(SampleVNFTrafficGen):
             "packets_received": 0,
             "rtt": 0,
         }
+        self.setup_helper.setup_vnf_environment()
         intf = self.vnfd_helper.interfaces[0]["virtual-interface"]
         self.resource_helper.cmd_kwargs = {
             'target_ip': IPv4Interface(intf["dst_ip"]).ip.exploded,
             'local_ip': IPv4Interface(intf["local_ip"]).ip.exploded,
             'local_if_name': intf["local_iface_name"].split('/')[0],
         }
-
-        self.setup_helper.setup_vnf_environment()