Add rate 'resolution' option for IXIA rfc2544 test

Rate resolution value is compared with the difference between
the rates in two consecutive iterations. If the difference
is smaller than the resolution, the test stops.

JIRA: YYARDSTICK-1592

Change-Id: I3f203d33d1688734a59a8f62f31e3ad238bc63b0
Signed-off-by: Serhiy Pshyk <serhiyx.pshyk@intel.com>

1 files changed, 45 insertions, 5 deletions

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 ef16676c7..3d12dddcf 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
@@ -584,8 +584,9 @@ class TestIXIARFC2544Profile(unittest.TestCase):
                         'Store-Forward_Max_latency_ns': 28}
                    }
         rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE)
+        rfc2544_profile._get_next_rate = mock.Mock(return_value=100.0)
         completed, samples = rfc2544_profile.get_drop_percentage(
-            samples, 0, 1, 4)
+            samples, 0, 1, 4, 0.1)
         self.assertTrue(completed)
         self.assertEqual(66.9, samples['TxThroughput'])
         self.assertEqual(66.833, samples['RxThroughput'])
@@ -608,8 +609,9 @@ class TestIXIARFC2544Profile(unittest.TestCase):
                    }
         rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE)
         rfc2544_profile.rate = 1000
+        rfc2544_profile._get_next_rate = mock.Mock(return_value=50.0)
         completed, samples = rfc2544_profile.get_drop_percentage(
-            samples, 0, 0.05, 4)
+            samples, 0, 0.05, 4, 0.1)
         self.assertFalse(completed)
         self.assertEqual(66.9, samples['TxThroughput'])
         self.assertEqual(66.833, samples['RxThroughput'])
@@ -630,8 +632,9 @@ class TestIXIARFC2544Profile(unittest.TestCase):
                    }
         rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE)
         rfc2544_profile.rate = 1000
+        rfc2544_profile._get_next_rate = mock.Mock(return_value=50.0)
         completed, samples = rfc2544_profile.get_drop_percentage(
-            samples, 0.2, 1, 4)
+            samples, 0.2, 1, 4, 0.1)
         self.assertFalse(completed)
         self.assertEqual(66.9, samples['TxThroughput'])
         self.assertEqual(66.833, samples['RxThroughput'])
@@ -653,8 +656,9 @@ class TestIXIARFC2544Profile(unittest.TestCase):
                    }
         rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE)
         rfc2544_profile.rate = 1000
+        rfc2544_profile._get_next_rate = mock.Mock(return_value=50.0)
         completed, samples = rfc2544_profile.get_drop_percentage(
-            samples, 0.2, 1, 4)
+            samples, 0.2, 1, 4, 0.1)
         self.assertFalse(completed)
         self.assertEqual(0.0, samples['TxThroughput'])
         self.assertEqual(66.833, samples['RxThroughput'])
@@ -674,14 +678,50 @@ class TestIXIARFC2544Profile(unittest.TestCase):
                         'Store-Forward_Max_latency_ns': 25}
                    }
         rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE)
+        rfc2544_profile._get_next_rate = mock.Mock(return_value=50.0)
         completed, samples = rfc2544_profile.get_drop_percentage(
-            samples, 0, 1, 4, first_run=True)
+            samples, 0, 1, 4, 0.1, first_run=True)
         self.assertTrue(completed)
         self.assertEqual(66.9, samples['TxThroughput'])
         self.assertEqual(66.833, samples['RxThroughput'])
         self.assertEqual(0.099651, samples['DropPercentage'])
         self.assertEqual(33.45, rfc2544_profile.rate)
 
+    def test_get_drop_percentage_resolution(self):
+        rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE)
+        rfc2544_profile._get_next_rate = mock.Mock(return_value=0.1)
+        samples = {'iface_name_1':
+                       {'in_packets': 1000, 'out_packets': 1000,
+                        'Store-Forward_Avg_latency_ns': 20,
+                        'Store-Forward_Min_latency_ns': 15,
+                        'Store-Forward_Max_latency_ns': 25},
+                   'iface_name_2':
+                       {'in_packets': 1005, 'out_packets': 1007,
+                        'Store-Forward_Avg_latency_ns': 20,
+                        'Store-Forward_Min_latency_ns': 15,
+                        'Store-Forward_Max_latency_ns': 25}
+                   }
+        rfc2544_profile.rate = 0.19
+        completed, _ = rfc2544_profile.get_drop_percentage(
+            samples, 0, 0.05, 4, 0.1)
+        self.assertTrue(completed)
+
+        samples = {'iface_name_1':
+                       {'in_packets': 1000, 'out_packets': 1000,
+                        'Store-Forward_Avg_latency_ns': 20,
+                        'Store-Forward_Min_latency_ns': 15,
+                        'Store-Forward_Max_latency_ns': 25},
+                   'iface_name_2':
+                       {'in_packets': 1005, 'out_packets': 1007,
+                        'Store-Forward_Avg_latency_ns': 20,
+                        'Store-Forward_Min_latency_ns': 15,
+                        'Store-Forward_Max_latency_ns': 25}
+                   }
+        rfc2544_profile.rate = 0.5
+        completed, _ = rfc2544_profile.get_drop_percentage(
+            samples, 0, 0.05, 4, 0.1)
+        self.assertFalse(completed)
+
 
 class TestIXIARFC2544PppoeScenarioProfile(unittest.TestCase):