Add RFC2544 iteration status field

 Added new RFC2544 iteration status field into the
testcase result to be able to exctract the best
RX/TX throughput value from each iteration.

 The field equal "Success" if the trhoughput value is in the
given drop percentage range and "Failure" otherwise.

JIRA: YARDSTICK-1389

Change-Id: I2fb2ef036b63a0e7bbf3d6c6568d3bdffa488e1f
Signed-off-by: Mytnyk, Volodymyr <volodymyrx.mytnyk@intel.com>
(cherry picked from commit 0ff5b131fa3f93f8d47b46c2f13661c5b88d37a1)

5 files changed, 36 insertions, 10 deletions

diff --git a/yardstick/network_services/traffic_profile/ixia_rfc2544.py b/yardstick/network_services/traffic_profile/ixia_rfc2544.py
index 44bf2eafc..1bd67555c 100644
--- a/yardstick/network_services/traffic_profile/ixia_rfc2544.py
+++ b/yardstick/network_services/traffic_profile/ixia_rfc2544.py
@@ -28,6 +28,8 @@ class IXIARFC2544Profile(trex_traffic_profile.TrexProfile):
     DOWNLINK = 'downlink'
     DROP_PERCENT_ROUND = 6
     RATE_ROUND = 5
+    STATUS_SUCCESS = "Success"
+    STATUS_FAIL = "Failure"
 
     def __init__(self, yaml_data):
         super(IXIARFC2544Profile, self).__init__(yaml_data)
@@ -159,7 +161,7 @@ class IXIARFC2544Profile(trex_traffic_profile.TrexProfile):
         self._ixia_traffic_generate(traffic, ixia_obj)
         return first_run
 
-    def get_drop_percentage(self, samples, tol_min, tolerance,
+    def get_drop_percentage(self, samples, tol_min, tolerance, precision,
                             first_run=False):
         completed = False
         drop_percent = 100
@@ -193,6 +195,10 @@ class IXIARFC2544Profile(trex_traffic_profile.TrexProfile):
         else:
             completed = True
 
+        LOG.debug("tolerance=%s, tolerance_precision=%s drop_percent=%s "
+                  "completed=%s", tolerance, precision, drop_percent,
+                  completed)
+
         latency_ns_avg = float(
             sum([samples[iface]['Store-Forward_Avg_latency_ns']
             for iface in samples])) / num_ifaces
@@ -203,6 +209,10 @@ class IXIARFC2544Profile(trex_traffic_profile.TrexProfile):
             sum([samples[iface]['Store-Forward_Max_latency_ns']
             for iface in samples])) / num_ifaces
 
+        samples['Status'] = self.STATUS_FAIL
+        if round(drop_percent, precision) <= tolerance:
+            samples['Status'] = self.STATUS_SUCCESS
+
         samples['TxThroughput'] = tx_throughput
         samples['RxThroughput'] = rx_throughput
         samples['DropPercentage'] = drop_percent
diff --git a/yardstick/network_services/vnf_generic/vnf/sample_vnf.py b/yardstick/network_services/vnf_generic/vnf/sample_vnf.py
index a09f2a7a9..21719cbf0 100644
--- a/yardstick/network_services/vnf_generic/vnf/sample_vnf.py
+++ b/yardstick/network_services/vnf_generic/vnf/sample_vnf.py
@@ -13,6 +13,7 @@
 # limitations under the License.
 
 import logging
+import decimal
 from multiprocessing import Queue, Value, Process
 import os
 import posixpath
@@ -499,6 +500,7 @@ class Rfc2544ResourceHelper(object):
         self._rfc2544 = None
         self._tolerance_low = None
         self._tolerance_high = None
+        self._tolerance_precision = None
 
     @property
     def rfc2544(self):
@@ -519,6 +521,12 @@ class Rfc2544ResourceHelper(object):
         return self._tolerance_high
 
     @property
+    def tolerance_precision(self):
+        if self._tolerance_precision is None:
+            self.get_rfc_tolerance()
+        return self._tolerance_precision
+
+    @property
     def correlated_traffic(self):
         if self._correlated_traffic is None:
             self._correlated_traffic = \
@@ -537,9 +545,13 @@ class Rfc2544ResourceHelper(object):
 
     def get_rfc_tolerance(self):
         tolerance_str = self.get_rfc2544('allowed_drop_rate', self.DEFAULT_TOLERANCE)
-        tolerance_iter = iter(sorted(float(t.strip()) for t in tolerance_str.split('-')))
-        self._tolerance_low = next(tolerance_iter)
-        self._tolerance_high = next(tolerance_iter, self.tolerance_low)
+        tolerance_iter = iter(sorted(
+            decimal.Decimal(t.strip()) for t in tolerance_str.split('-')))
+        tolerance_low = next(tolerance_iter)
+        tolerance_high = next(tolerance_iter, tolerance_low)
+        self._tolerance_precision = abs(tolerance_high.as_tuple().exponent)
+        self._tolerance_high = float(tolerance_high)
+        self._tolerance_low = float(tolerance_low)
 
 
 class SampleVNFDeployHelper(object):
diff --git a/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py b/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py
index 558a62935..89f8194c0 100644
--- a/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py
+++ b/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py
@@ -107,6 +107,7 @@ class IxiaResourceHelper(ClientResourceHelper):
 
         min_tol = self.rfc_helper.tolerance_low
         max_tol = self.rfc_helper.tolerance_high
+        precision = self.rfc_helper.tolerance_precision
         default = "00:00:00:00:00:00"
 
         self._build_ports()
@@ -134,7 +135,7 @@ class IxiaResourceHelper(ClientResourceHelper):
                                                 traffic_profile.config.duration)
 
                 completed, samples = traffic_profile.get_drop_percentage(
-                    samples, min_tol, max_tol, first_run=first_run)
+                    samples, min_tol, max_tol, precision, first_run=first_run)
                 self._queue.put(samples)
 
                 if completed:
diff --git a/yardstick/tests/unit/network_services/traffic_profile/test_ixia_rfc2544.py b/yardstick/tests/unit/network_services/traffic_profile/test_ixia_rfc2544.py
index 0759ecebd..5b39b6cd1 100644
--- a/yardstick/tests/unit/network_services/traffic_profile/test_ixia_rfc2544.py
+++ b/yardstick/tests/unit/network_services/traffic_profile/test_ixia_rfc2544.py
@@ -586,7 +586,8 @@ class TestIXIARFC2544Profile(unittest.TestCase):
                         'Store-Forward_Max_latency_ns': 28}
                    }
         rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE)
-        completed, samples = rfc2544_profile.get_drop_percentage(samples, 0, 1)
+        completed, samples = rfc2544_profile.get_drop_percentage(
+            samples, 0, 1, 4)
         self.assertTrue(completed)
         self.assertEqual(66.9, samples['TxThroughput'])
         self.assertEqual(66.833, samples['RxThroughput'])
@@ -610,7 +611,7 @@ class TestIXIARFC2544Profile(unittest.TestCase):
         rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE)
         rfc2544_profile.rate = 1000
         completed, samples = rfc2544_profile.get_drop_percentage(
-            samples, 0, 0.05)
+            samples, 0, 0.05, 4)
         self.assertFalse(completed)
         self.assertEqual(66.9, samples['TxThroughput'])
         self.assertEqual(66.833, samples['RxThroughput'])
@@ -632,7 +633,7 @@ class TestIXIARFC2544Profile(unittest.TestCase):
         rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE)
         rfc2544_profile.rate = 1000
         completed, samples = rfc2544_profile.get_drop_percentage(
-            samples, 0.2, 1)
+            samples, 0.2, 1, 4)
         self.assertFalse(completed)
         self.assertEqual(66.9, samples['TxThroughput'])
         self.assertEqual(66.833, samples['RxThroughput'])
@@ -655,7 +656,7 @@ class TestIXIARFC2544Profile(unittest.TestCase):
         rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE)
         rfc2544_profile.rate = 1000
         completed, samples = rfc2544_profile.get_drop_percentage(
-            samples, 0.2, 1)
+            samples, 0.2, 1, 4)
         self.assertFalse(completed)
         self.assertEqual(0.0, samples['TxThroughput'])
         self.assertEqual(66.833, samples['RxThroughput'])
@@ -676,7 +677,7 @@ class TestIXIARFC2544Profile(unittest.TestCase):
                    }
         rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE)
         completed, samples = rfc2544_profile.get_drop_percentage(
-            samples, 0, 1, first_run=True)
+            samples, 0, 1, 4, first_run=True)
         self.assertTrue(completed)
         self.assertEqual(66.9, samples['TxThroughput'])
         self.assertEqual(66.833, samples['RxThroughput'])
diff --git a/yardstick/tests/unit/network_services/vnf_generic/vnf/test_sample_vnf.py b/yardstick/tests/unit/network_services/vnf_generic/vnf/test_sample_vnf.py
index 4a1d8c30e..c9d42fb3e 100644
--- a/yardstick/tests/unit/network_services/vnf_generic/vnf/test_sample_vnf.py
+++ b/yardstick/tests/unit/network_services/vnf_generic/vnf/test_sample_vnf.py
@@ -1206,6 +1206,7 @@ class TestRfc2544ResourceHelper(unittest.TestCase):
         self.assertIsNone(rfc2544_resource_helper._tolerance_high)
         self.assertEqual(rfc2544_resource_helper.tolerance_high, 0.15)
         self.assertEqual(rfc2544_resource_helper._tolerance_high, 0.15)
+        self.assertEqual(rfc2544_resource_helper._tolerance_precision, 2)
         scenario_helper.scenario_cfg = {}  # ensure that resource_helper caches
         self.assertEqual(rfc2544_resource_helper.tolerance_high, 0.15)
 
@@ -1240,6 +1241,7 @@ class TestRfc2544ResourceHelper(unittest.TestCase):
         rfc2544_resource_helper = Rfc2544ResourceHelper(scenario_helper)
 
         self.assertEqual(rfc2544_resource_helper.tolerance_high, 0.2)
+        self.assertEqual(rfc2544_resource_helper._tolerance_precision, 1)
 
     def test_property_tolerance_low_not_range(self):
         scenario_helper = ScenarioHelper('name1')