tests/e2e: add e2e test to reproduce issue 18089

[MadhavJivrajani]

e2e for https://github.com/etcd-io/etcd/issues/18089

The goal is to reproduce a DELETE event being dropped in a watch after a compaction occurs on the revision where the deletion took place. In order to reproduce this, we perform the following sequence (steps for reproduction thanks to @ahrtr):

• PUT k v2 (assume returned revision = r2)
• PUT k v3 (assume returned revision = r3)
• PUT k v4 (assume returned revision = r4)
• DELETE k (assume returned revision = r5)
• PUT k v6 (assume returned revision = r6)
• COMPACT r5
• WATCH rev=r5

We should get the DELETE event (r5) followed by the PUT event (r6). However, currently we only get the PUT event with returned revision of r6 (key=k, val=v6).

/assign @ahrtr @serathius @siyuanfoundation

[MadhavJivrajani]

/assign @serathius @ahrtr @siyuanfoundation @jmhbnz @fuweid

[MadhavJivrajani]

/retest

[MadhavJivrajani]

/test all

[siyuanfoundation]

Very nice! Thank you @MadhavJivrajani

[serathius]

cc @ahrtr

[serathius]

Please fix pull-etcd-verify

[ahrtr]

Can we add the test case into watch_test.go? I see that there is an existing watch_delay_test.go, I think we can rename it to watch_test.go if there is no strong objection.

[MadhavJivrajani]

@ahrtr can you PTAL again?

[ahrtr]

/retest

[MadhavJivrajani]

/retest