netdev - [PATCH net-next v4 5/6] selftests: qdiscs: RED: Add nodrop tests

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Message-Id: <20200312231100.37180-6-petrm@mellanox.com>
Date:   Fri, 13 Mar 2020 01:10:59 +0200
From:   Petr Machata <petrm@...lanox.com>
To:     netdev@...r.kernel.org
Cc:     Petr Machata <petrm@...lanox.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Roman Mashak <mrv@...atatu.com>,
        Eric Dumazet <eric.dumazet@...il.com>, jhs@...atatu.com,
        xiyou.wangcong@...il.com, davem@...emloft.net, idosch@...lanox.com,
        mlxsw@...lanox.com
Subject: [PATCH net-next v4 5/6] selftests: qdiscs: RED: Add nodrop tests

Add tests for the new "nodrop" flag.

Signed-off-by: Petr Machata <petrm@...lanox.com>
---

Notes:
    v3:
    - Rename "taildrop" to "nodrop"
    
    v2:
    - Require nsPlugin in each RED test
    - Match end-of-line to catch cases of more flags reported than
      requested
    - Add a test for creation of non-ECN taildrop, which should fail

 .../tc-testing/tc-tests/qdiscs/red.json       | 68 +++++++++++++++++++
 1 file changed, 68 insertions(+)

diff --git a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/red.json b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/red.json
index b70a54464897..0703a2a255eb 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/red.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/red.json
@@ -113,5 +113,73 @@
             "$TC qdisc del dev $DUMMY handle 1: root",
             "$IP link del dev $DUMMY type dummy"
         ]
+    },
+    {
+        "id": "53e8",
+        "name": "Create RED with flags ECN, nodrop",
+        "category": [
+            "qdisc",
+            "red"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root red ecn nodrop limit 1M avpkt 1500 min 100K max 300K",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc red 1: root .* limit 1Mb min 100Kb max 300Kb ecn nodrop $",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "d091",
+        "name": "Fail to create RED with only nodrop flag",
+        "category": [
+            "qdisc",
+            "red"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root red nodrop limit 1M avpkt 1500 min 100K max 300K",
+        "expExitCode": "2",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc red",
+        "matchCount": "0",
+        "teardown": [
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "af8e",
+        "name": "Create RED with flags ECN, nodrop, harddrop",
+        "category": [
+            "qdisc",
+            "red"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root red ecn harddrop nodrop limit 1M avpkt 1500 min 100K max 300K",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc red 1: root .* limit 1Mb min 100Kb max 300Kb ecn harddrop nodrop $",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
     }
 ]
-- 
2.20.1