diff options
Diffstat (limited to 'tests/unit/network_services/libs/ixia_libs')
-rw-r--r-- | tests/unit/network_services/libs/ixia_libs/__init__.py | 0 | ||||
-rw-r--r-- | tests/unit/network_services/libs/ixia_libs/test_IxNet.py | 882 |
2 files changed, 882 insertions, 0 deletions
diff --git a/tests/unit/network_services/libs/ixia_libs/__init__.py b/tests/unit/network_services/libs/ixia_libs/__init__.py new file mode 100644 index 000000000..e69de29bb --- /dev/null +++ b/tests/unit/network_services/libs/ixia_libs/__init__.py diff --git a/tests/unit/network_services/libs/ixia_libs/test_IxNet.py b/tests/unit/network_services/libs/ixia_libs/test_IxNet.py new file mode 100644 index 000000000..9114b5163 --- /dev/null +++ b/tests/unit/network_services/libs/ixia_libs/test_IxNet.py @@ -0,0 +1,882 @@ +#!/usr/bin/env python + +# Copyright (c) 2016-2017 Intel Corporation +# +# 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. +# + +# Unittest for yardstick.network_services.libs.ixia_libs.IxNet + +from __future__ import absolute_import +import unittest +import mock + +from yardstick.network_services.libs.ixia_libs.IxNet.IxNet import IxNextgen +from yardstick.network_services.libs.ixia_libs.IxNet.IxNet import IP_VERSION_4 +from yardstick.network_services.libs.ixia_libs.IxNet.IxNet import IP_VERSION_6 + + +class TestIxNextgen(unittest.TestCase): + + def test___init__(self): + ixnet_gen = IxNextgen() + self.assertIsNone(ixnet_gen._bidir) + + @mock.patch("yardstick.network_services.libs.ixia_libs.IxNet.IxNet.IxNetwork") + @mock.patch("yardstick.network_services.libs.ixia_libs.IxNet.IxNet.sys") + def test_connect(self, mock_sys, mock_ix_network): + mock_ix_network.IxNet.return_value = mock_ixnet = mock.Mock() + + ixnet_gen = IxNextgen() + ixnet_gen.get_config = mock.MagicMock() + ixnet_gen.get_ixnet = mock.MagicMock() + + result = ixnet_gen._connect({"py_lib_path": "/tmp"}) + self.assertIsNotNone(result) + self.assertEqual(mock_ix_network.IxNet.call_count, 1) + self.assertEqual(mock_ixnet.connect.call_count, 1) + + def test_clear_ixia_config(self): + ixnet = mock.MagicMock() + ixnet.execute = mock.Mock() + + ixnet_gen = IxNextgen(ixnet) + + result = ixnet_gen.clear_ixia_config() + self.assertIsNone(result) + self.assertEqual(ixnet.execute.call_count, 1) + + def test_load_ixia_profile(self): + ixnet = mock.MagicMock() + ixnet.execute = mock.Mock() + + ixnet_gen = IxNextgen(ixnet) + + result = ixnet_gen.load_ixia_profile({}) + self.assertIsNone(result) + self.assertEqual(ixnet.execute.call_count, 1) + + def test_load_ixia_config(self): + ixnet = mock.MagicMock() + ixnet.execute = mock.Mock() + + ixnet_gen = IxNextgen(ixnet) + + result = ixnet_gen.ix_load_config({}) + self.assertIsNone(result) + self.assertEqual(ixnet.execute.call_count, 2) + + @mock.patch('yardstick.network_services.libs.ixia_libs.IxNet.IxNet.log') + def test_ix_assign_ports(self, mock_logger): + ixnet = mock.MagicMock() + ixnet.getList.return_value = [0, 1] + ixnet.getAttribute.side_effect = ['up', 'down'] + + config = { + 'chassis': '1.1.1.1', + 'card1': '1', + 'card2': '2', + 'port1': '2', + 'port2': '2', + } + + ixnet_gen = IxNextgen(ixnet) + ixnet_gen._cfg = config + + result = ixnet_gen.ix_assign_ports() + self.assertIsNone(result) + self.assertEqual(ixnet.execute.call_count, 1) + self.assertEqual(ixnet.commit.call_count, 1) + self.assertEqual(ixnet.getAttribute.call_count, 2) + self.assertEqual(mock_logger.error.call_count, 1) + + def test_ix_update_frame(self): + static_traffic_params = { + "private": { + "id": 1, + "bidir": "False", + "duration": 60, + "iload": "100", + "outer_l2": { + "dstmac": "00:00:00:00:00:03", + "framesPerSecond": True, + "framesize": { + "64B": "100", + "1KB": "0", + }, + "srcmac": "00:00:00:00:00:01" + }, + "outer_l3": { + "dscp": 0, + "dstip4": "152.16.40.20", + "proto": "udp", + "srcip4": "152.16.100.20", + "ttl": 32 + }, + "outer_l3v4": { + "dscp": 0, + "dstip4": "152.16.40.20", + "proto": "udp", + "srcip4": "152.16.100.20", + "ttl": 32 + }, + "outer_l3v6": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l4": { + "dstport": "2001", + "srcport": "1234" + }, + "traffic_type": "continuous" + }, + "public": { + "id": 2, + "bidir": "False", + "duration": 60, + "iload": "100", + "outer_l2": { + "dstmac": "00:00:00:00:00:04", + "framesPerSecond": False, + "framesize": {"64B": "100"}, + "srcmac": "00:00:00:00:00:01" + }, + "outer_l3": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l3v4": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l3v6": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l4": { + "dstport": "1234", + "srcport": "2001" + }, + "traffic_type": "continuous" + } + } + + ixnet = mock.MagicMock() + ixnet.remapIds.return_value = ["0"] + ixnet.setMultiAttribute.return_value = [1] + ixnet.commit.return_value = [1] + ixnet.getList.side_effect = [ + [1], + [1], + [1], + [ + "ethernet.header.destinationAddress", + "ethernet.header.sourceAddress", + ], + ] + + ixnet_gen = IxNextgen(ixnet) + + result = ixnet_gen.ix_update_frame(static_traffic_params) + self.assertIsNone(result) + self.assertEqual(ixnet.setMultiAttribute.call_count, 7) + self.assertEqual(ixnet.commit.call_count, 2) + + def test_ix_update_udp(self): + ixnet = mock.MagicMock() + + ixnet_gen = IxNextgen(ixnet) + + result = ixnet_gen.ix_update_udp({}) + self.assertIsNone(result) + + def test_ix_update_tcp(self): + ixnet = mock.MagicMock() + ixnet_gen = IxNextgen(ixnet) + + result = ixnet_gen.ix_update_tcp({}) + self.assertIsNone(result) + + def test_ix_start_traffic(self): + ixnet = mock.MagicMock() + ixnet.getList.return_value = [0] + ixnet.getAttribute.return_value = 'down' + + ixnet_gen = IxNextgen(ixnet) + + result = ixnet_gen.ix_start_traffic() + self.assertIsNone(result) + self.assertEqual(ixnet.getList.call_count, 1) + self.assertEqual(ixnet.execute.call_count, 3) + + def test_ix_stop_traffic(self): + ixnet = mock.MagicMock() + ixnet.getList.return_value = [0] + + ixnet_gen = IxNextgen(ixnet) + + result = ixnet_gen.ix_stop_traffic() + self.assertIsNone(result) + self.assertEqual(ixnet.getList.call_count, 1) + self.assertEqual(ixnet.execute.call_count, 1) + + def test_ix_get_statistics(self): + ixnet = mock.MagicMock() + ixnet.execute.return_value = "" + ixnet.getList.side_effect = [ + [ + '::ixNet::OBJ-/statistics/view:"Traffic Item Statistics"', + '::ixNet::OBJ-/statistics/view:"Port Statistics"', + ], + [ + '::ixNet::OBJ-/statistics/view:"Flow Statistics"', + ], + ] + + ixnet_gen = IxNextgen(ixnet) + + result = ixnet_gen.ix_get_statistics() + self.assertIsNotNone(result) + self.assertEqual(ixnet.getList.call_count, 2) + self.assertEqual(ixnet.execute.call_count, 20) + + def test_find_view_obj_no_where(self): + views = ['here', 'there', 'everywhere'] + result = IxNextgen.find_view_obj('no_where', views) + self.assertEqual(result, '') + + def test_add_ip_header_v4(self): + static_traffic_params = { + "private": { + "id": 1, + "bidir": "False", + "duration": 60, + "iload": "100", + "outer_l2": { + "dstmac": "00:00:00:00:00:03", + "framesPerSecond": True, + "framesize": {"64B": "100"}, + "srcmac": "00:00:00:00:00:01" + }, + "outer_l3": { + "dscp": 0, + "dstip4": "152.16.40.20", + "proto": "udp", + "srcip4": "152.16.100.20", + "count": 1024, + "ttl": 32 + }, + "outer_l3v4": { + "dscp": 0, + "dstip4": "152.16.40.20", + "proto": "udp", + "srcip4": "152.16.100.20", + "ttl": 32 + }, + "outer_l3v6": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l4": { + "dstport": "2001", + "srcport": "1234" + }, + "traffic_type": "continuous" + }, + "public": { + "id": 2, + "bidir": "False", + "duration": 60, + "iload": "100", + "outer_l2": { + "dstmac": "00:00:00:00:00:04", + "framesPerSecond": True, + "framesize": {"64B": "100"}, + "srcmac": "00:00:00:00:00:01" + }, + "outer_l3": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l3v4": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l3v6": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l4": { + "dstport": "1234", + "srcport": "2001" + }, + "traffic_type": "continuous" + } + } + + ixnet = mock.MagicMock() + ixnet.remapIds.return_value = ["0"] + ixnet.setMultiAttribute.return_value = [1] + ixnet.commit.return_value = [1] + ixnet.getList.side_effect = [[1], [0], [0], ["srcIp", "dstIp"]] + + ixnet_gen = IxNextgen(ixnet) + + result = ixnet_gen.add_ip_header(static_traffic_params, IP_VERSION_4) + self.assertIsNone(result) + self.assertGreater(ixnet.setMultiAttribute.call_count, 0) + self.assertEqual(ixnet.commit.call_count, 1) + + def test_add_ip_header_v4_nothing_to_do(self): + static_traffic_params = { + "private": { + "id": 1, + "bidir": "False", + "duration": 60, + "iload": "100", + "outer_l2": { + "dstmac": "00:00:00:00:00:03", + "framesPerSecond": True, + "framesize": {"64B": "100"}, + "srcmac": "00:00:00:00:00:01" + }, + "outer_l3": { + "dscp": 0, + "dstip4": "152.16.40.20", + "proto": "udp", + "srcip4": "152.16.100.20", + "count": 1024, + "ttl": 32 + }, + "outer_l3v4": { + "dscp": 0, + "dstip4": "152.16.40.20", + "proto": "udp", + "srcip4": "152.16.100.20", + "ttl": 32 + }, + "outer_l3v6": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l4": { + "dstport": "2001", + "srcport": "1234" + }, + "traffic_type": "continuous" + }, + "public": { + "id": 2, + "bidir": "False", + "duration": 60, + "iload": "100", + "outer_l2": { + "dstmac": "00:00:00:00:00:04", + "framesPerSecond": True, + "framesize": {"64B": "100"}, + "srcmac": "00:00:00:00:00:01" + }, + "outer_l3": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l3v4": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l3v6": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l4": { + "dstport": "1234", + "srcport": "2001" + }, + "traffic_type": "continuous" + } + } + + ixnet = mock.MagicMock() + ixnet.remapIds.return_value=["0"] + ixnet.setMultiAttribute.return_value = [1] + ixnet.commit.return_value = [1] + ixnet.getList.side_effect = [[1], [0, 1], [0], ["srcIp", "dstIp"]] + + ixnet_gen = IxNextgen(ixnet) + + result = ixnet_gen.add_ip_header(static_traffic_params, IP_VERSION_4) + self.assertIsNone(result) + self.assertGreater(ixnet.setMultiAttribute.call_count, 0) + self.assertEqual(ixnet.commit.call_count, 1) + + def test_add_ip_header_v6(self): + static_traffic_profile = { + "private": { + "id": 1, + "bidir": "False", + "duration": 60, + "iload": "100", + "outer_l2": { + "dstmac": "00:00:00:00:00:03", + "framesPerSecond": True, + "framesize": {"64B": "100"}, + "srcmac": "00:00:00:00:00:01" + }, + "outer_l3": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.40.20", + "proto": "udp", + "srcip4": "152.16.100.20", + "ttl": 32 + }, + "outer_l3v6": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l4": { + "dstport": "2001", + "srcport": "1234" + }, + "traffic_type": "continuous" + }, + "public": { + "id": 2, + "bidir": "False", + "duration": 60, + "iload": "100", + "outer_l2": { + "dstmac": "00:00:00:00:00:04", + "framesPerSecond": True, + "framesize": {"64B": "100"}, + "srcmac": "00:00:00:00:00:01" + }, + "outer_l3": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l3v6": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l4": { + "dstport": "1234", + "srcport": "2001" + }, + "traffic_type": "continuous" + } + } + + ixnet = mock.MagicMock() + ixnet.getList.side_effect = [[1], [1], [1], ["srcIp", "dstIp"]] + ixnet.remapIds.return_value = ["0"] + ixnet.setMultiAttribute.return_value = [1] + ixnet.commit.return_value = [1] + + ixnet_gen = IxNextgen(ixnet) + + result = ixnet_gen.add_ip_header(static_traffic_profile, IP_VERSION_6) + self.assertIsNone(result) + self.assertGreater(ixnet.setMultiAttribute.call_count, 0) + self.assertEqual(ixnet.commit.call_count, 1) + + def test_add_ip_header_v6_nothing_to_do(self): + static_traffic_params = { + "private": { + "id": 1, + "bidir": "False", + "duration": 60, + "iload": "100", + "outer_l2": { + "dstmac": "00:00:00:00:00:03", + "framesPerSecond": True, + "framesize": {"64B": "100"}, + "srcmac": "00:00:00:00:00:01" + }, + "outer_l3": { + "dscp": 0, + "dstip4": "152.16.40.20", + "proto": "udp", + "srcip4": "152.16.100.20", + "count": 1024, + "ttl": 32 + }, + "outer_l3v6": { + "dscp": 0, + "dstip4": "152.16.40.20", + "proto": "udp", + "srcip4": "152.16.100.20", + "ttl": 32 + }, + "outer_l4": { + "dstport": "2001", + "srcport": "1234" + }, + "traffic_type": "continuous" + }, + "public": { + "id": 2, + "bidir": "False", + "duration": 60, + "iload": "100", + "outer_l2": { + "dstmac": "00:00:00:00:00:04", + "framesPerSecond": True, + "framesize": {"64B": "100"}, + "srcmac": "00:00:00:00:00:01" + }, + "outer_l3": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l3v6": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l4": { + "dstport": "1234", + "srcport": "2001" + }, + "traffic_type": "continuous" + } + } + + ixnet = mock.MagicMock() + ixnet.getList.side_effect = [[1], [0, 1], [1], ["srcIP", "dstIP"]] + ixnet.remapIds.return_value = ["0"] + ixnet.setMultiAttribute.return_value = [1] + ixnet.commit.return_value = [1] + + ixnet_gen = IxNextgen(ixnet) + + result = ixnet_gen.add_ip_header(static_traffic_params, IP_VERSION_6) + self.assertIsNone(result) + self.assertEqual(ixnet.setMultiAttribute.call_count, 0) + + def test_set_random_ip_multi_attributes_bad_ip_version(self): + bad_ip_version = object() + ixnet_gen = IxNextgen(mock.Mock()) + mock1 = mock.Mock() + mock2 = mock.Mock() + mock3 = mock.Mock() + with self.assertRaises(ValueError): + ixnet_gen.set_random_ip_multi_attributes(mock1, bad_ip_version, mock2, mock3) + + def test_get_config(self): + tg_cfg = { + "vdu": [ + { + "external-interface": [ + { + "virtual-interface": { + "vpci": "0000:07:00.1", + }, + }, + { + "virtual-interface": { + "vpci": "0001:08:01.2", + }, + }, + ], + }, + ], + "mgmt-interface": { + "ip": "test1", + "tg-config": { + "dut_result_dir": "test2", + "version": "test3", + "ixchassis": "test4", + "tcl_port": "test5", + "py_lib_path": "test6", + }, + } + } + + expected = { + 'py_lib_path': 'test6', + 'machine': 'test1', + 'port': 'test5', + 'chassis': 'test4', + 'card1': '0000', + 'port1': '07', + 'card2': '0001', + 'port2': '08', + 'output_dir': 'test2', + 'version': 'test3', + 'bidir': True, + } + + result = IxNextgen.get_config(tg_cfg) + self.assertDictEqual(result, expected) + + def test_ix_update_ether(self): + static_traffic_params = { + "private": { + "id": 1, + "bidir": "False", + "duration": 60, + "iload": "100", + "outer_l2": { + "dstmac": "00:00:00:00:00:03", + "framesPerSecond": True, + "framesize": 64, + "srcmac": "00:00:00:00:00:01" + }, + "outer_l3": { + "dscp": 0, + "dstip4": "152.16.40.20", + "proto": "udp", + "srcip4": "152.16.100.20", + "ttl": 32 + }, + "outer_l3v4": { + "dscp": 0, + "dstip4": "152.16.40.20", + "proto": "udp", + "srcip4": "152.16.100.20", + "ttl": 32 + }, + "outer_l3v6": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l4": { + "dstport": "2001", + "srcport": "1234" + }, + "traffic_type": "continuous" + }, + "public": { + "id": 2, + "bidir": "False", + "duration": 60, + "iload": "100", + "outer_l2": { + "dstmac": "00:00:00:00:00:04", + "framesPerSecond": True, + "framesize": 64, + "srcmac": "00:00:00:00:00:01" + }, + "outer_l3": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l3v4": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l3v6": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l4": { + "dstport": "1234", + "srcport": "2001" + }, + "traffic_type": "continuous" + } + } + + ixnet = mock.MagicMock() + ixnet.setMultiAttribute.return_value = [1] + ixnet.commit.return_value = [1] + ixnet.getList.side_effect = [ + [1], + [1], + [1], + [ + "ethernet.header.destinationAddress", + "ethernet.header.sourceAddress", + ], + ] + + ixnet_gen = IxNextgen(ixnet) + + result = ixnet_gen.ix_update_ether(static_traffic_params) + self.assertIsNone(result) + self.assertGreater(ixnet.setMultiAttribute.call_count, 0) + + def test_ix_update_ether_nothing_to_do(self): + static_traffic_params = { + "private": { + "id": 1, + "bidir": "False", + "duration": 60, + "iload": "100", + "outer_l3": { + "dscp": 0, + "dstip4": "152.16.40.20", + "proto": "udp", + "srcip4": "152.16.100.20", + "ttl": 32 + }, + "outer_l3v4": { + "dscp": 0, + "dstip4": "152.16.40.20", + "proto": "udp", + "srcip4": "152.16.100.20", + "ttl": 32 + }, + "outer_l3v6": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l4": { + "dstport": "2001", + "srcport": "1234" + }, + "traffic_type": "continuous" + }, + "public": { + "id": 2, + "bidir": "False", + "duration": 60, + "iload": "100", + "outer_l3": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l3v4": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l3v6": { + "count": 1024, + "dscp": 0, + "dstip4": "152.16.100.20", + "proto": "udp", + "srcip4": "152.16.40.20", + "ttl": 32 + }, + "outer_l4": { + "dstport": "1234", + "srcport": "2001" + }, + "traffic_type": "continuous" + } + } + + ixnet = mock.MagicMock() + ixnet.setMultiAttribute.return_value = [1] + ixnet.commit.return_value = [1] + ixnet.getList.side_effect=[ + [1], + [1], + [1], + [ + "ethernet.header.destinationAddress", + "ethernet.header.sourceAddress", + ], + ] + + ixnet_gen = IxNextgen(ixnet) + + result = ixnet_gen.ix_update_ether(static_traffic_params) + self.assertIsNone(result) + self.assertEqual(ixnet.setMultiAttribute.call_count, 0) |