[PATCH] dts: remove redundant test suite

[Paul Szczepanek <paul.szczepanek@arm.com>]

The test suite served as a demonstration of the Scapy traffic generator
implementation. Now that we have a test suite that uses DPDK code (via
testpmd), there is no reason to keep the test suite, as there's no
expectation it'll be actually used in any setup.

Signed-off-by: Juraj Linkeš <juraj.linkes@pantheon.tech>
Signed-off-by: Paul Szczepanek <paul.szczepanek@arm.com>
---
 dts/framework/test_suite.py                  | 36 -------------
 dts/framework/testbed_model/linux_session.py | 22 +-------
 dts/framework/testbed_model/node.py          |  2 -
 dts/framework/testbed_model/os_session.py    | 34 ------------
 dts/framework/testbed_model/sut_node.py      |  8 ---
 dts/tests/TestSuite_os_udp.py                | 54 --------------------
 6 files changed, 1 insertion(+), 155 deletions(-)
 delete mode 100644 dts/tests/TestSuite_os_udp.py

diff --git a/dts/framework/test_suite.py b/dts/framework/test_suite.py
index 7a75334cfa..adee01f031 100644
--- a/dts/framework/test_suite.py
+++ b/dts/framework/test_suite.py
@@ -209,42 +209,6 @@ def tear_down_test_case(self) -> None:
         This is done after *each* test case.
         """
 
-    def configure_testbed_ipv4(self, restore: bool = False) -> None:
-        """Configure IPv4 addresses on all testbed ports.
-
-        The configured ports are:
-
-        * SUT ingress port,
-        * SUT egress port,
-        * TG ingress port,
-        * TG egress port.
-
-        Args:
-            restore: If :data:`True`, will remove the configuration instead.
-        """
-        delete = True if restore else False
-        enable = False if restore else True
-        self._configure_ipv4_forwarding(enable)
-        self.sut_node.configure_port_ip_address(
-            self._sut_ip_address_egress, self._sut_port_egress, delete
-        )
-        self.sut_node.configure_port_state(self._sut_port_egress, enable)
-        self.sut_node.configure_port_ip_address(
-            self._sut_ip_address_ingress, self._sut_port_ingress, delete
-        )
-        self.sut_node.configure_port_state(self._sut_port_ingress, enable)
-        self.tg_node.configure_port_ip_address(
-            self._tg_ip_address_ingress, self._tg_port_ingress, delete
-        )
-        self.tg_node.configure_port_state(self._tg_port_ingress, enable)
-        self.tg_node.configure_port_ip_address(
-            self._tg_ip_address_egress, self._tg_port_egress, delete
-        )
-        self.tg_node.configure_port_state(self._tg_port_egress, enable)
-
-    def _configure_ipv4_forwarding(self, enable: bool) -> None:
-        self.sut_node.configure_ipv4_forwarding(enable)
-
     def send_packet_and_capture(
         self,
         packet: Packet,
diff --git a/dts/framework/testbed_model/linux_session.py b/dts/framework/testbed_model/linux_session.py
index 544a665b83..f87efb8f18 100644
--- a/dts/framework/testbed_model/linux_session.py
+++ b/dts/framework/testbed_model/linux_session.py
@@ -10,8 +10,7 @@
 """
 
 import json
-from ipaddress import IPv4Interface, IPv6Interface
-from typing import TypedDict, Union
+from typing import TypedDict
 
 from typing_extensions import NotRequired
 
@@ -179,25 +178,6 @@ def _update_port_attr(self, port: Port, attr_value: str | None, attr_name: str)
                 f"Attempted to get '{attr_name}' of port {port.pci}, but it doesn't exist."
             )
 
-    def configure_port_state(self, port: Port, enable: bool) -> None:
-        """Overrides :meth:`~.os_session.OSSession.configure_port_state`."""
-        state = "up" if enable else "down"
-        self.send_command(f"ip link set dev {port.logical_name} {state}", privileged=True)
-
-    def configure_port_ip_address(
-        self,
-        address: Union[IPv4Interface, IPv6Interface],
-        port: Port,
-        delete: bool,
-    ) -> None:
-        """Overrides :meth:`~.os_session.OSSession.configure_port_ip_address`."""
-        command = "del" if delete else "add"
-        self.send_command(
-            f"ip address {command} {address} dev {port.logical_name}",
-            privileged=True,
-            verify=True,
-        )
-
     def configure_port_mtu(self, mtu: int, port: Port) -> None:
         """Overrides :meth:`~.os_session.OSSession.configure_port_mtu`."""
         self.send_command(
diff --git a/dts/framework/testbed_model/node.py b/dts/framework/testbed_model/node.py
index 6031eaf937..85144f6f4e 100644
--- a/dts/framework/testbed_model/node.py
+++ b/dts/framework/testbed_model/node.py
@@ -96,8 +96,6 @@ def __init__(self, node_config: NodeConfiguration):
     def _init_ports(self) -> None:
         self.ports = [Port(self.name, port_config) for port_config in self.config.ports]
         self.main_session.update_ports(self.ports)
-        for port in self.ports:
-            self.configure_port_state(port)
 
     def set_up_test_run(
         self,
diff --git a/dts/framework/testbed_model/os_session.py b/dts/framework/testbed_model/os_session.py
index 294f5b36ba..62add7a4df 100644
--- a/dts/framework/testbed_model/os_session.py
+++ b/dts/framework/testbed_model/os_session.py
@@ -25,9 +25,7 @@
 from abc import ABC, abstractmethod
 from collections.abc import Iterable
 from dataclasses import dataclass
-from ipaddress import IPv4Interface, IPv6Interface
 from pathlib import Path, PurePath, PurePosixPath
-from typing import Union
 
 from framework.config import Architecture, NodeConfiguration
 from framework.logger import DTSLogger
@@ -521,30 +519,6 @@ def update_ports(self, ports: list[Port]) -> None:
             ports: The ports to update.
         """
 
-    @abstractmethod
-    def configure_port_state(self, port: Port, enable: bool) -> None:
-        """Enable/disable `port` in the operating system.
-
-        Args:
-            port: The port to configure.
-            enable: If :data:`True`, enable the port, otherwise shut it down.
-        """
-
-    @abstractmethod
-    def configure_port_ip_address(
-        self,
-        address: Union[IPv4Interface, IPv6Interface],
-        port: Port,
-        delete: bool,
-    ) -> None:
-        """Configure an IP address on `port` in the operating system.
-
-        Args:
-            address: The address to configure.
-            port: The port to configure.
-            delete: If :data:`True`, remove the IP address, otherwise configure it.
-        """
-
     @abstractmethod
     def configure_port_mtu(self, mtu: int, port: Port) -> None:
         """Configure `mtu` on `port`.
@@ -553,11 +527,3 @@ def configure_port_mtu(self, mtu: int, port: Port) -> None:
             mtu: Desired MTU value.
             port: Port to set `mtu` on.
         """
-
-    @abstractmethod
-    def configure_ipv4_forwarding(self, enable: bool) -> None:
-        """Enable IPv4 forwarding in the operating system.
-
-        Args:
-            enable: If :data:`True`, enable the forwarding, otherwise disable it.
-        """
diff --git a/dts/framework/testbed_model/sut_node.py b/dts/framework/testbed_model/sut_node.py
index be3faf7474..14d77c50a6 100644
--- a/dts/framework/testbed_model/sut_node.py
+++ b/dts/framework/testbed_model/sut_node.py
@@ -488,14 +488,6 @@ def run_dpdk_app(
             f"{app_path} {eal_params}", timeout, privileged=True, verify=True
         )
 
-    def configure_ipv4_forwarding(self, enable: bool) -> None:
-        """Enable/disable IPv4 forwarding on the node.
-
-        Args:
-            enable: If :data:`True`, enable the forwarding, otherwise disable it.
-        """
-        self.main_session.configure_ipv4_forwarding(enable)
-
     def bind_ports_to_driver(self, for_dpdk: bool = True) -> None:
         """Bind all ports on the SUT to a driver.
 
diff --git a/dts/tests/TestSuite_os_udp.py b/dts/tests/TestSuite_os_udp.py
deleted file mode 100644
index beaa5f425d..0000000000
--- a/dts/tests/TestSuite_os_udp.py
+++ /dev/null
@@ -1,54 +0,0 @@
-# SPDX-License-Identifier: BSD-3-Clause
-# Copyright(c) 2023 PANTHEON.tech s.r.o.
-
-"""Basic IPv4 OS routing test suite.
-
-Configure SUT node to route traffic from if1 to if2.
-Send a packet to the SUT node, verify it comes back on the second port on the TG node.
-"""
-
-from scapy.layers.inet import IP, UDP  # type: ignore[import-untyped]
-from scapy.layers.l2 import Ether  # type: ignore[import-untyped]
-
-from framework.test_suite import TestSuite, func_test
-
-
-class TestOsUdp(TestSuite):
-    """IPv4 UDP OS routing test suite."""
-
-    def set_up_suite(self) -> None:
-        """Set up the test suite.
-
-        Setup:
-            Bind the SUT ports to the OS driver, configure the ports and configure the SUT
-            to route traffic from if1 to if2.
-        """
-        self.sut_node.bind_ports_to_driver(for_dpdk=False)
-        self.configure_testbed_ipv4()
-
-    @func_test
-    def test_os_udp(self) -> None:
-        """Basic UDP IPv4 traffic test case.
-
-        Steps:
-            Send a UDP packet.
-        Verify:
-            The packet with proper addresses arrives at the other TG port.
-        """
-        packet = Ether() / IP() / UDP()
-
-        received_packets = self.send_packet_and_capture(packet)
-
-        expected_packet = self.get_expected_packet(packet)
-
-        self.verify_packets(expected_packet, received_packets)
-
-    def tear_down_suite(self) -> None:
-        """Tear down the test suite.
-
-        Teardown:
-            Remove the SUT port configuration configured in setup.
-        """
-        self.configure_testbed_ipv4(restore=True)
-        # Assume other suites will likely need dpdk driver
-        self.sut_node.bind_ports_to_driver(for_dpdk=True)
-- 
2.39.2