diff options
Diffstat (limited to 'yardstick/tests/unit/network_services/helpers/test_dpdkbindnic_helper.py')
| -rw-r--r-- | yardstick/tests/unit/network_services/helpers/test_dpdkbindnic_helper.py | 632 |
1 files changed, 632 insertions, 0 deletions
diff --git a/yardstick/tests/unit/network_services/helpers/test_dpdkbindnic_helper.py b/yardstick/tests/unit/network_services/helpers/test_dpdkbindnic_helper.py new file mode 100644 index 000000000..e19311613 --- /dev/null +++ b/yardstick/tests/unit/network_services/helpers/test_dpdkbindnic_helper.py @@ -0,0 +1,632 @@ +# 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. + +import mock +import unittest + +import os + +from yardstick.common import exceptions +from yardstick.network_services.helpers.dpdkbindnic_helper import DpdkInterface +from yardstick.network_services.helpers.dpdkbindnic_helper import DpdkNode +from yardstick.network_services.helpers.dpdkbindnic_helper import DpdkBindHelper +from yardstick.network_services.helpers.dpdkbindnic_helper import DpdkBindHelperException +from yardstick.network_services.helpers.dpdkbindnic_helper import NETWORK_KERNEL +from yardstick.network_services.helpers.dpdkbindnic_helper import NETWORK_DPDK +from yardstick.network_services.helpers.dpdkbindnic_helper import CRYPTO_KERNEL +from yardstick.network_services.helpers.dpdkbindnic_helper import CRYPTO_DPDK +from yardstick.network_services.helpers.dpdkbindnic_helper import NETWORK_OTHER +from yardstick.network_services.helpers.dpdkbindnic_helper import CRYPTO_OTHER + + +NAME = "tg_0" + + +class TestDpdkInterface(unittest.TestCase): + + SAMPLE_NETDEVS = { + 'enp11s0': { + 'address': '0a:de:ad:be:ef:f5', + 'device': '0x1533', + 'driver': 'igb', + 'ifindex': '2', + 'interface_name': 'enp11s0', + 'operstate': 'down', + 'pci_bus_id': '0000:0b:00.0', + 'subsystem_device': '0x1533', + 'subsystem_vendor': '0x15d9', + 'vendor': '0x8086' + }, + 'lan': { + 'address': '0a:de:ad:be:ef:f4', + 'device': '0x153a', + 'driver': 'e1000e', + 'ifindex': '3', + 'interface_name': 'lan', + 'operstate': 'up', + 'pci_bus_id': '0000:00:19.0', + 'subsystem_device': '0x153a', + 'subsystem_vendor': '0x15d9', + 'vendor': '0x8086' + } + } + + SAMPLE_VM_NETDEVS = { + 'eth1': { + 'address': 'fa:de:ad:be:ef:5b', + 'device': '0x0001', + 'driver': 'virtio_net', + 'ifindex': '3', + 'interface_name': 'eth1', + 'operstate': 'down', + 'pci_bus_id': '0000:00:04.0', + 'vendor': '0x1af4' + } + } + + def test_parse_netdev_info(self): + output = """\ +/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/ifindex:2 +/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/address:0a:de:ad:be:ef:f5 +/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/operstate:down +/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/device/vendor:0x8086 +/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/device/device:0x1533 +/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/device/subsystem_vendor:0x15d9 +/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/device/subsystem_device:0x1533 +/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/driver:igb +/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/pci_bus_id:0000:0b:00.0 +/sys/devices/pci0000:00/0000:00:19.0/net/lan/ifindex:3 +/sys/devices/pci0000:00/0000:00:19.0/net/lan/address:0a:de:ad:be:ef:f4 +/sys/devices/pci0000:00/0000:00:19.0/net/lan/operstate:up +/sys/devices/pci0000:00/0000:00:19.0/net/lan/device/vendor:0x8086 +/sys/devices/pci0000:00/0000:00:19.0/net/lan/device/device:0x153a +/sys/devices/pci0000:00/0000:00:19.0/net/lan/device/subsystem_vendor:0x15d9 +/sys/devices/pci0000:00/0000:00:19.0/net/lan/device/subsystem_device:0x153a +/sys/devices/pci0000:00/0000:00:19.0/net/lan/driver:e1000e +/sys/devices/pci0000:00/0000:00:19.0/net/lan/pci_bus_id:0000:00:19.0 +""" + res = DpdkBindHelper.parse_netdev_info(output) + self.assertDictEqual(res, self.SAMPLE_NETDEVS) + + def test_parse_netdev_info_virtio(self): + output = """\ +/sys/devices/pci0000:00/0000:00:04.0/virtio1/net/eth1/ifindex:3 +/sys/devices/pci0000:00/0000:00:04.0/virtio1/net/eth1/address:fa:de:ad:be:ef:5b +/sys/devices/pci0000:00/0000:00:04.0/virtio1/net/eth1/operstate:down +/sys/devices/pci0000:00/0000:00:04.0/virtio1/net/eth1/device/vendor:0x1af4 +/sys/devices/pci0000:00/0000:00:04.0/virtio1/net/eth1/device/device:0x0001 +/sys/devices/pci0000:00/0000:00:04.0/virtio1/net/eth1/driver:virtio_net +""" + res = DpdkBindHelper.parse_netdev_info(output) + self.assertDictEqual(res, self.SAMPLE_VM_NETDEVS) + + def test_probe_missing_values(self): + mock_dpdk_node = mock.Mock() + mock_dpdk_node.netdevs = self.SAMPLE_NETDEVS.copy() + + interface = {'local_mac': '0a:de:ad:be:ef:f5'} + dpdk_intf = DpdkInterface(mock_dpdk_node, interface) + + dpdk_intf.probe_missing_values() + self.assertEqual(interface['vpci'], '0000:0b:00.0') + + interface['local_mac'] = '0a:de:ad:be:ef:f4' + dpdk_intf.probe_missing_values() + self.assertEqual(interface['vpci'], '0000:00:19.0') + + def test_probe_missing_values_no_update(self): + mock_dpdk_node = mock.Mock() + mock_dpdk_node.netdevs = self.SAMPLE_NETDEVS.copy() + del mock_dpdk_node.netdevs['enp11s0']['driver'] + del mock_dpdk_node.netdevs['lan']['driver'] + + interface = {'local_mac': '0a:de:ad:be:ef:f5'} + dpdk_intf = DpdkInterface(mock_dpdk_node, interface) + + dpdk_intf.probe_missing_values() + self.assertNotIn('vpci', interface) + self.assertNotIn('driver', interface) + + def test_probe_missing_values_negative(self): + mock_dpdk_node = mock.Mock() + mock_dpdk_node.netdevs.values.side_effect = ( + exceptions.IncorrectNodeSetup(error_msg='')) + + interface = {'local_mac': '0a:de:ad:be:ef:f5'} + dpdk_intf = DpdkInterface(mock_dpdk_node, interface) + + with self.assertRaises(exceptions.IncorrectConfig): + dpdk_intf.probe_missing_values() + + +class TestDpdkNode(unittest.TestCase): + + INTERFACES = [ + {'name': 'name1', + 'virtual-interface': { + 'local_mac': 404, + 'vpci': 'pci10', + }}, + {'name': 'name2', + 'virtual-interface': { + 'local_mac': 404, + 'vpci': 'pci2', + }}, + {'name': 'name3', + 'virtual-interface': { + 'local_mac': 404, + 'vpci': 'some-pci1', + }}, + ] + + def test_probe_dpdk_drivers(self): + mock_ssh_helper = mock.Mock() + mock_ssh_helper.execute.return_value = 0, '', '' + + interfaces = [ + {'name': 'name1', + 'virtual-interface': { + 'local_mac': 404, + 'vpci': 'pci10', + }}, + {'name': 'name2', + 'virtual-interface': { + 'local_mac': 404, + 'vpci': 'pci2', + }}, + {'name': 'name3', + 'virtual-interface': { + 'local_mac': 404, + 'vpci': 'some-pci1', + }}, + ] + + dpdk_node = DpdkNode(NAME, interfaces, mock_ssh_helper) + dpdk_helper = dpdk_node.dpdk_helper + + dpdk_helper.probe_real_kernel_drivers = mock.Mock() + dpdk_helper.real_kernel_interface_driver_map = { + 'pci1': 'driver1', + 'pci2': 'driver2', + 'pci3': 'driver3', + 'pci4': 'driver1', + 'pci6': 'driver3', + } + + dpdk_node._probe_dpdk_drivers() + self.assertNotIn('driver', interfaces[0]['virtual-interface']) + self.assertEqual(interfaces[1]['virtual-interface']['driver'], 'driver2') + self.assertEqual(interfaces[2]['virtual-interface']['driver'], 'driver1') + + def test_check(self): + def update(): + if not mock_force_rebind.called: + raise exceptions.IncorrectConfig(error_msg='') + + interfaces[0]['virtual-interface'].update({ + 'vpci': '0000:01:02.1', + 'local_ip': '10.20.30.40', + 'netmask': '255.255.0.0', + 'driver': 'ixgbe', + }) + + mock_ssh_helper = mock.Mock() + mock_ssh_helper.execute.return_value = 0, '', '' + + interfaces = [ + {'name': 'name1', + 'virtual-interface': { + 'local_mac': 404, + }}, + ] + + dpdk_node = DpdkNode(NAME, interfaces, mock_ssh_helper) + dpdk_node._probe_missing_values = mock_probe_missing = mock.Mock(side_effect=update) + dpdk_node._force_rebind = mock_force_rebind = mock.Mock() + + self.assertIsNone(dpdk_node.check()) + self.assertEqual(mock_probe_missing.call_count, 2) + + @mock.patch('yardstick.network_services.helpers.dpdkbindnic_helper.DpdkInterface') + def test_check_negative(self, mock_intf_type): + mock_ssh_helper = mock.Mock() + mock_ssh_helper.execute.return_value = 0, '', '' + + mock_intf_type().check.side_effect = exceptions.SSHError + + dpdk_node = DpdkNode(NAME, self.INTERFACES, mock_ssh_helper) + + with self.assertRaises(exceptions.IncorrectSetup): + dpdk_node.check() + + def test_probe_netdevs(self): + mock_ssh_helper = mock.Mock() + mock_ssh_helper.execute.return_value = 0, '', '' + + expected = {'key1': 500, 'key2': 'hello world'} + update = {'key1': 1000, 'key3': []} + + dpdk_node = DpdkNode(NAME, self.INTERFACES, mock_ssh_helper) + dpdk_helper = dpdk_node.dpdk_helper + dpdk_helper.find_net_devices = mock.Mock(side_effect=[expected, update]) + + self.assertDictEqual(dpdk_node.netdevs, {}) + dpdk_node._probe_netdevs() + self.assertDictEqual(dpdk_node.netdevs, expected) + + expected = {'key1': 1000, 'key2': 'hello world', 'key3': []} + dpdk_node._probe_netdevs() + self.assertDictEqual(dpdk_node.netdevs, expected) + + def test_probe_netdevs_setup_negative(self): + mock_ssh_helper = mock.Mock() + mock_ssh_helper.execute.return_value = 0, '', '' + + dpdk_node = DpdkNode(NAME, self.INTERFACES, mock_ssh_helper) + dpdk_helper = dpdk_node.dpdk_helper + dpdk_helper.find_net_devices = mock.Mock(side_effect=DpdkBindHelperException) + + with self.assertRaises(DpdkBindHelperException): + dpdk_node._probe_netdevs() + + def test_force_rebind(self): + mock_ssh_helper = mock.Mock() + mock_ssh_helper.execute.return_value = 0, '', '' + + dpdk_node = DpdkNode(NAME, self.INTERFACES, mock_ssh_helper) + dpdk_helper = dpdk_node.dpdk_helper + dpdk_helper.force_dpdk_rebind = mock_helper_func = mock.Mock() + + dpdk_node._force_rebind() + mock_helper_func.assert_called_once() + + +class TestDpdkBindHelper(unittest.TestCase): + bin_path = "/opt/nsb_bin" + EXAMPLE_OUTPUT = """ + +Network devices using DPDK-compatible driver +============================================ +0000:00:04.0 'Virtio network device' drv=igb_uio unused= +0000:00:05.0 'Virtio network device' drv=igb_uio unused= + +Network devices using kernel driver +=================================== +0000:00:03.0 'Virtio network device' if=ens3 drv=virtio-pci unused=igb_uio *Active* + +Other network devices +===================== +<none> + +Crypto devices using DPDK-compatible driver +=========================================== +<none> + +Crypto devices using kernel driver +================================== +<none> + +Other crypto devices +==================== +<none> +""" + + PARSED_EXAMPLE = { + NETWORK_DPDK: [ + {'active': False, + 'dev_type': 'Virtio network device', + 'driver': 'igb_uio', + 'iface': None, + 'unused': '', + 'vpci': '0000:00:04.0', + }, + {'active': False, + 'dev_type': 'Virtio network device', + 'driver': 'igb_uio', + 'iface': None, + 'unused': '', + 'vpci': '0000:00:05.0', + } + ], + NETWORK_KERNEL: [ + {'active': True, + 'dev_type': 'Virtio network device', + 'driver': 'virtio-pci', + 'iface': 'ens3', + 'unused': 'igb_uio', + 'vpci': '0000:00:03.0', + } + ], + CRYPTO_KERNEL: [], + CRYPTO_DPDK: [], + NETWORK_OTHER: [], + CRYPTO_OTHER: [], + } + + CLEAN_STATUS = { + NETWORK_KERNEL: [], + NETWORK_DPDK: [], + CRYPTO_KERNEL: [], + CRYPTO_DPDK: [], + NETWORK_OTHER: [], + CRYPTO_OTHER: [], + } + + ONE_INPUT_LINE = ("0000:00:03.0 'Virtio network device' if=ens3 " + "drv=virtio-pci unused=igb_uio *Active*") + + ONE_INPUT_LINE_PARSED = [{ + 'vpci': '0000:00:03.0', + 'dev_type': 'Virtio network device', + 'iface': 'ens3', + 'driver': 'virtio-pci', + 'unused': 'igb_uio', + 'active': True, + }] + + def test___init__(self): + conn = mock.Mock() + conn.provision_tool = mock.Mock(return_value='path_to_tool') + conn.join_bin_path.return_value = os.path.join(self.bin_path, DpdkBindHelper.DPDK_DEVBIND) + + dpdk_bind_helper = DpdkBindHelper(conn) + + self.assertEqual(conn, dpdk_bind_helper.ssh_helper) + self.assertEqual(self.CLEAN_STATUS, dpdk_bind_helper.dpdk_status) + self.assertIsNone(dpdk_bind_helper.status_nic_row_re) + self.assertEqual(dpdk_bind_helper.dpdk_devbind, + os.path.join(self.bin_path, dpdk_bind_helper.DPDK_DEVBIND)) + self.assertIsNone(dpdk_bind_helper._status_cmd_attr) + + def test__dpdk_execute(self): + conn = mock.Mock() + conn.execute = mock.Mock(return_value=(0, 'output', 'error')) + conn.provision_tool = mock.Mock(return_value='tool_path') + dpdk_bind_helper = DpdkBindHelper(conn) + self.assertEqual((0, 'output', 'error'), dpdk_bind_helper._dpdk_execute('command')) + + def test__dpdk_execute_failure(self): + conn = mock.Mock() + conn.execute = mock.Mock(return_value=(1, 'output', 'error')) + conn.provision_tool = mock.Mock(return_value='tool_path') + dpdk_bind_helper = DpdkBindHelper(conn) + with self.assertRaises(DpdkBindHelperException): + dpdk_bind_helper._dpdk_execute('command') + + def test__addline(self): + conn = mock.Mock() + + dpdk_bind_helper = DpdkBindHelper(conn) + + dpdk_bind_helper._add_line(NETWORK_KERNEL, self.ONE_INPUT_LINE) + + self.assertIsNotNone(dpdk_bind_helper.dpdk_status) + self.assertEqual(self.ONE_INPUT_LINE_PARSED, dpdk_bind_helper.dpdk_status[NETWORK_KERNEL]) + + def test__switch_active_dict_by_header(self): + line = "Crypto devices using DPDK-compatible driver" + olddict = 'olddict' + self.assertEqual(CRYPTO_DPDK, DpdkBindHelper._switch_active_dict(line, olddict)) + + def test__switch_active_dict_by_header_empty(self): + line = "<none>" + olddict = 'olddict' + self.assertEqual(olddict, DpdkBindHelper._switch_active_dict(line, olddict)) + + def test_parse_dpdk_status_output(self): + conn = mock.Mock() + + dpdk_bind_helper = DpdkBindHelper(conn) + + dpdk_bind_helper._parse_dpdk_status_output(self.EXAMPLE_OUTPUT) + + self.maxDiff = None + self.assertEqual(self.PARSED_EXAMPLE, dpdk_bind_helper.dpdk_status) + + def test_kernel_bound_pci_addresses(self): + mock_ssh_helper = mock.Mock() + mock_ssh_helper.execute.return_value = 0, '', '' + + expected = ['a', 'b', 3] + + dpdk_helper = DpdkBindHelper(mock_ssh_helper) + dpdk_helper.dpdk_status = { + NETWORK_DPDK: [{'vpci': 4}, {'vpci': 5}, {'vpci': 'g'}], + NETWORK_KERNEL: [{'vpci': 'a'}, {'vpci': 'b'}, {'vpci': 3}], + CRYPTO_DPDK: [], + } + + result = dpdk_helper.kernel_bound_pci_addresses + self.assertEqual(result, expected) + + def test_find_net_devices_negative(self): + mock_ssh_helper = mock.Mock() + mock_ssh_helper.execute.return_value = 1, 'error', 'debug' + + dpdk_helper = DpdkBindHelper(mock_ssh_helper) + + self.assertDictEqual(dpdk_helper.find_net_devices(), {}) + + def test_read_status(self): + conn = mock.Mock() + conn.execute = mock.Mock(return_value=(0, self.EXAMPLE_OUTPUT, '')) + conn.provision_tool = mock.Mock(return_value='path_to_tool') + + dpdk_bind_helper = DpdkBindHelper(conn) + + self.assertEqual(self.PARSED_EXAMPLE, dpdk_bind_helper.read_status()) + + def test__get_bound_pci_addresses(self): + conn = mock.Mock() + + dpdk_bind_helper = DpdkBindHelper(conn) + + dpdk_bind_helper._parse_dpdk_status_output(self.EXAMPLE_OUTPUT) + + self.assertEqual(['0000:00:04.0', '0000:00:05.0'], + dpdk_bind_helper._get_bound_pci_addresses(NETWORK_DPDK)) + self.assertEqual(['0000:00:03.0'], + dpdk_bind_helper._get_bound_pci_addresses(NETWORK_KERNEL)) + + def test_interface_driver_map(self): + conn = mock.Mock() + + dpdk_bind_helper = DpdkBindHelper(conn) + + dpdk_bind_helper._parse_dpdk_status_output(self.EXAMPLE_OUTPUT) + + self.assertEqual({'0000:00:04.0': 'igb_uio', + '0000:00:03.0': 'virtio-pci', + '0000:00:05.0': 'igb_uio', + }, + dpdk_bind_helper.interface_driver_map) + + def test_bind(self): + conn = mock.Mock() + conn.execute = mock.Mock(return_value=(0, '', '')) + conn.join_bin_path.return_value = os.path.join(self.bin_path, DpdkBindHelper.DPDK_DEVBIND) + + dpdk_bind_helper = DpdkBindHelper(conn) + dpdk_bind_helper.read_status = mock.Mock() + + dpdk_bind_helper.bind(['0000:00:03.0', '0000:00:04.0'], 'my_driver') + + conn.execute.assert_called_with('sudo /opt/nsb_bin/dpdk-devbind.py --force ' + '-b my_driver 0000:00:03.0 0000:00:04.0') + dpdk_bind_helper.read_status.assert_called_once() + + def test_bind_single_pci(self): + conn = mock.Mock() + conn.execute = mock.Mock(return_value=(0, '', '')) + conn.join_bin_path.return_value = os.path.join(self.bin_path, DpdkBindHelper.DPDK_DEVBIND) + + dpdk_bind_helper = DpdkBindHelper(conn) + dpdk_bind_helper.read_status = mock.Mock() + + dpdk_bind_helper.bind('0000:00:03.0', 'my_driver') + + conn.execute.assert_called_with('sudo /opt/nsb_bin/dpdk-devbind.py --force ' + '-b my_driver 0000:00:03.0') + dpdk_bind_helper.read_status.assert_called_once() + + def test_rebind_drivers(self): + conn = mock.Mock() + + dpdk_bind_helper = DpdkBindHelper(conn) + + dpdk_bind_helper.bind = mock.Mock() + dpdk_bind_helper.used_drivers = { + 'd1': ['0000:05:00.0'], + 'd3': ['0000:05:01.0', '0000:05:02.0'], + } + + dpdk_bind_helper.rebind_drivers() + + dpdk_bind_helper.bind.assert_any_call(['0000:05:00.0'], 'd1', True) + dpdk_bind_helper.bind.assert_any_call(['0000:05:01.0', '0000:05:02.0'], 'd3', True) + + def test_save_used_drivers(self): + conn = mock.Mock() + dpdk_bind_helper = DpdkBindHelper(conn) + dpdk_bind_helper.dpdk_status = self.PARSED_EXAMPLE + + dpdk_bind_helper.save_used_drivers() + + expected = { + 'igb_uio': ['0000:00:04.0', '0000:00:05.0'], + 'virtio-pci': ['0000:00:03.0'], + } + + self.assertDictEqual(expected, dpdk_bind_helper.used_drivers) + + def test_force_dpdk_rebind(self): + mock_ssh_helper = mock.Mock() + mock_ssh_helper.execute.return_value = 0, '', '' + + dpdk_helper = DpdkBindHelper(mock_ssh_helper, 'driver2') + dpdk_helper.dpdk_status = { + NETWORK_DPDK: [ + { + 'vpci': 'pci1', + }, + { + 'vpci': 'pci3', + }, + { + 'vpci': 'pci6', + }, + { + 'vpci': 'pci3', + }, + ] + } + dpdk_helper.real_kernel_interface_driver_map = { + 'pci1': 'real_driver1', + 'pci2': 'real_driver2', + 'pci3': 'real_driver1', + 'pci4': 'real_driver4', + 'pci6': 'real_driver6', + } + dpdk_helper.load_dpdk_driver = mock.Mock() + dpdk_helper.read_status = mock.Mock() + dpdk_helper.save_real_kernel_interface_driver_map = mock.Mock() + dpdk_helper.save_used_drivers = mock.Mock() + dpdk_helper.bind = mock_bind = mock.Mock() + + dpdk_helper.force_dpdk_rebind() + self.assertEqual(mock_bind.call_count, 2) + + def test_save_real_kernel_drivers(self): + mock_ssh_helper = mock.Mock() + mock_ssh_helper.execute.return_value = 0, '', '' + + dpdk_helper = DpdkBindHelper(mock_ssh_helper) + dpdk_helper.real_kernel_drivers = { + 'abc': '123', + } + dpdk_helper.real_kernel_interface_driver_map = { + 'abc': 'AAA', + 'def': 'DDD', + 'abs': 'AAA', + 'ghi': 'GGG', + } + + # save_used_drivers must be called before save_real_kernel_drivers can be + with self.assertRaises(AttributeError): + dpdk_helper.save_real_kernel_drivers() + + dpdk_helper.save_used_drivers() + + expected_used_drivers = { + 'AAA': ['abc', 'abs'], + 'DDD': ['def'], + 'GGG': ['ghi'], + } + dpdk_helper.save_real_kernel_drivers() + self.assertDictEqual(dpdk_helper.used_drivers, expected_used_drivers) + self.assertDictEqual(dpdk_helper.real_kernel_drivers, {}) + + def test_get_real_kernel_driver(self): + mock_ssh_helper = mock.Mock() + mock_ssh_helper.execute.side_effect = [ + (0, 'non-matching text', ''), + (0, 'pre Kernel modules: real_driver1', ''), + (0, 'before Ethernet middle Virtio network device after', ''), + ] + + dpdk_helper = DpdkBindHelper(mock_ssh_helper) + + self.assertIsNone(dpdk_helper.get_real_kernel_driver('abc')) + self.assertEqual(dpdk_helper.get_real_kernel_driver('abc'), 'real_driver1') + self.assertEqual(dpdk_helper.get_real_kernel_driver('abc'), DpdkBindHelper.VIRTIO_DRIVER) |