26324330806
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Ran 23 May 2026 05:18AM UTC

Jobs 1

Files 73

Run time 1min

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Committed 23 May 2026 05:13AM UTC coverage: 95.225%. Remained the same

Build # 26324330806

Build Type

push

github

Committed by

web-flow

Commit Message

test(driver-paxos): wait for follower promise sync before sampling fence epoch (#197)

`fence_check_rejects_stale_epoch_and_accepts_current` sampled the
follower's encoded promise immediately after `drive_until(
some_leader_elected, ...)` returned. That predicate only proves *some*
node sees itself as leader — the chosen follower may not have processed
the prepare yet, leaving its promise at `Ballot::default()` (encodes to
`Epoch(0)`). The driver's later fence check then observes the prepare
in flight and reports a different `current`, panicking the assertion.

Add a `drive_until(leader_epoch != Epoch(0) && leader_epoch ==
follower_epoch, 1_000)` between picking the follower and sampling. The
predicate short-circuits as soon as both nodes have promised to the
same ballot, so fast-path cost is unchanged.

Confirmed via `cargo test fence_check_rejects_stale_epoch_and_accepts_current`
20× in a loop: 20/20 pass, was previously seen failing on PR #191's CI.

Coverage Stats

9553 of 10032 relevant lines covered (95.23%)

523900.07 hits per line

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ID	Job ID	Ran	Files	Coverage
1	26324330806.1	23 May 2026 05:18AM UTC	73	95.23	GitHub Action Run

prisma-risk / tsoracle / 26324330806
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