TestON/tests/USECASE/SegmentRouting/QOS/dependencies/QOSTest.py

from tests.USECASE.SegmentRouting.dependencies.Testcaselib import \
    Testcaselib as run
from tests.USECASE.SegmentRouting.dependencies.trex import Trex
from tests.USECASE.SegmentRouting.dependencies.up4 import UP4
import json


class QOSTest:

    def runTest(self, main, test_idx, n_switches):
        run.initTest(main)
        main.log.info(main.Cluster.numCtrls)
        main.Cluster.setRunningNode(3)
        run.installOnos(main, skipPackage=True, cliSleep=5)

        main.step("Start P4rt client and setup TRex")
        # Use the first available ONOS instance CLI
        onos_cli = main.Cluster.active(0).CLI
        up4 = UP4()
        trex = Trex()
        # Get the P4RT client connected to UP4 in the first available ONOS instance
        up4.setup(main.Cluster.active(0).p4rtUp4, no_host=True)
        trex.setup(main.TRexClient)

        try:
            main.step("Program UPF entities via UP4")
            up4.attachUes()
            up4.verifyUp4Flow(onos_cli)

            # Load traffic config for the current test case
            main.step("Load test JSON config")
            cfgFile = main.configPath + "/tests/" + "CASE_%d.json" % test_idx
            with open(cfgFile) as cfg:
                testCfg = json.load(cfg)

            for flow in testCfg["flows"]:
                trex.createFlow(flow)
            results = trex.sendAndReceiveTraffic(testCfg["duration"])
            main.step("Verify congestion")
            trex.verifyCongestion(
                results,
                multiplier=float(testCfg.get("multiplier", "1"))
            )

            main.step("Log port and flow stats")
            trex.logPortStats()
            for flow in testCfg["flows"]:
                trex.logFlowStats(flow)

            # Assert Flow Stats
            for flow in testCfg["flows"]:
                if trex.isFlowStats(flow):
                    main.step("{}: Assert RX Packets".format(flow))
                    trex.assertRxPackets(flow)
                    main.step("{}: Assert Dropped Packets".format(flow))
                    trex.assertDroppedPacket(flow)
                    main.step("{}: Assert 90 Percentile Latency".format(flow))
                    trex.assert90PercentileLatency(flow)
                    main.step("{}: Assert 99.9 Percentile Latency".format(flow))
                    trex.assert99_9PercentileLatency(flow)
        finally:
            main.step("Remove UPF entities via UP4")
            up4.detachUes()
            up4.verifyNoUesFlow(onos_cli)

            main.step("Teardown")
            trex.teardown()
            up4.teardown()
            run.cleanup(main)