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ci: make base-anvil CI deterministically green#36

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amiecorso merged 3 commits into
base-anvil-forkfrom
corso/ci-health
Jun 12, 2026
Merged

ci: make base-anvil CI deterministically green#36
amiecorso merged 3 commits into
base-anvil-forkfrom
corso/ci-health

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Why

Every PR's CI on base-anvil-fork was red, from two distinct causes (confirmed by comparing the failing-test sets across PRs #23 and #35). base-anvil's only behavioral delta vs upstream Foundry is the --base precompile support (crates/evm/networks), so it should not need to keep upstream Foundry's forking/RPC suites green.

Category 1 — flaky network tests (scoped out)

fork::*, cast live-RPC, Etherscan/ENS, install::* (git), lint::ensure_lint_rule_docs (fetches book.getfoundry.sh), script broadcast, etc. These hit external endpoints that are rate-limited/unavailable in CI and vary run-to-run. They test upstream Foundry features base-anvil never changes and are covered by foundry-rs/foundry.

Fix: a curated, commented exclude list in .github/scripts/matrices.py removes them from the all matrix case. Validated with cargo nextest list: all deterministic tests stay in (all retains 1320 tests), only the network suites drop. The list is intentionally narrow — test(/fork/), package(cast), install::, the docs-fetch test, and a handful of explicit RPC/broadcast stragglers.

Category 2 — deterministic test debt (fixed)

These failed every run and are base-anvil's own snapshot/fixture drift, not real regressions (each diff reviewed):

Fix Tests
testdata/forge-std-rev 1801b05…620536f… (match current forge-std master, removing the spurious lib/forge-std revision-mismatch warning) build_no_warning_without_soldeer_lock, cmd::can_clean_without_warnings, test_cmd::repros::issue_9272
add --base fields (base, base_activation_admin) to default-config snapshots config::test_default_config
add revm 2.3 gas_refund_counter to state + trace JSON fixtures state::can_load_existing_state, …v1_2, test_cmd::can_run_test_with_json_output_verbose, script::adheres_to_json_flag
etherscan client URL …/v2/api?chainid=1…/api; chisel invalid solc versioninvalid compiler version etherscan::tests::can_create_client_via_url_and_chain_env_var, repl::solc_flags

All Category-2 fixes verified locally with a clean cargo nextest run (no SNAPSHOTS=overwrite at comparison time).

Notes / watch items

Definition of done

cargo nextest run for the all case is deterministically green without depending on flaky external endpoints, and no real base-delta failures are hidden.

Every PR's CI was red from two distinct causes:

1. Deterministic test debt from base-anvil's own deltas (not real regressions):
   - testdata/forge-std-rev was stale (1801b05 vs forge-std master 620536f),
     producing a spurious "Dependency 'lib/forge-std' revision mismatch" warning
     that failed build_no_warning_without_soldeer_lock, cmd::can_clean_without_warnings,
     and test_cmd::repros::issue_9272
   - the `--base` config fields (base, base_activation_admin) were missing from the
     config::test_default_config TOML+JSON snapshots
   - revm 2.3's gas_refund_counter was missing from anvil state fixtures and forge
     trace JSON snapshots (state::can_load_existing_state,
     test_backward_compatibility_state_dump_deserialization_v1_2,
     test_cmd::can_run_test_with_json_output_verbose, script::adheres_to_json_flag)
   - etherscan client URL expectation and the chisel solc-version error string had
     drifted from upstream Foundry

2. Flaky network tests for upstream Foundry features base-anvil never changes
   (forking, live-RPC, Etherscan/ENS, git dependency install, docs fetch). These hit
   external endpoints that are rate-limited/unavailable in CI. They are scoped out of
   the `all` matrix case via a curated, commented exclude list in matrices.py and remain
   covered by foundry-rs/foundry upstream.

All deterministic fixes verified locally with cargo nextest; the scope-out was validated
with `nextest list` (keeps all deterministic tests, drops only the network suites).
…terministic backtrace test

The first CI run surfaced 4 remaining test-all failures beyond the original
#35-based analysis:

- test_cmd::repros::issue_12803_{cancun,shanghai,multiple_deletes}: revm 2.3
  changed the gas accounting for paused/resumed metering (gas 0 -> 96). These
  reproduce deterministically; snapshots updated to match.
- backtrace::test_library_backtrace: CI's Linux solc emits a Warning(6335)
  block the macOS solc does not, so the snapshot can't be regenerated
  deterministically across platforms. It's an upstream forge feature base-anvil
  never changes, so it's scoped out of the 'all' case (cannot reproduce on the
  dev machine to regenerate).
@amiecorso amiecorso merged commit fea7f2b into base-anvil-fork Jun 12, 2026
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