test(continuous): per-instance trigger-miss hook#542
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… process global The previous `FORCE_TAKE_MISS_COUNT` static in `shared_best.rs` was a process-global AtomicU64, so under `cargo test` (all tests in one process, parallel threads) any other continuous-mode test calling `SharedBest::take()` in its build loop could consume the forced miss intended for `smoke_continuous_trigger_miss_fallback_publishes_candidate`, causing the fallback test to pass vacuously or perturbing a sibling test. Replace the global with a per-builder `Arc<AtomicU64>` seeded from a new `initial_force_take_miss_count` field on `FlashblocksConfig` (and `FlashblocksArgs`, `#[arg(skip)]`). `OpPayloadBuilderInner` holds the Arc (`#[cfg(test)]`), clones it into every `SharedBest` via `start_flashblock_interval`, and `SharedBest::take()` does the decrement on `self.force_take_miss` rather than the global. The test sets `initial_force_take_miss_count: 1` in its `OpRbuilderArgs` literal; all global hook infrastructure (`ForceTakeMissGuard`, `force_next_take_misses`, `should_force_take_miss`, and the `continuous_test_hooks` re-exports) is deleted. Verified with both `cargo nextest run` and `cargo test`.
avalonche
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Jun 16, 2026
| /// Number of forced `SharedBest::take()` misses for test isolation. | ||
| /// Consumed only under `#[cfg(test)]`; else always 0. | ||
| #[arg(skip)] | ||
| pub initial_force_take_miss_count: u64, |
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can this not be refactored such that the test instance can be configured with a test SharedBest instance with test config?
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Fallback test was flaky with the force trigger-miss hook, that relied on a process-global count that any concurrent test could consume. Replaced with per-builder Arc.