ethereumjs-monorepo

execution-spec-tests-fixtures

Fixtures from official Ethereum test releases (execution-specs) for EthereumJS consumption.

Split by EthereumJS support, not upstream _stable / _develop names:

• stable/: expected to pass on current EthereumJS master
• dev/: upcoming fork / EIP work not yet fully supported

How we bump a snapshot: packages/vm/DEVELOPER.md in the monorepo (Updating fixtures). Glamsterdam mixed tests live at a stable path dev/blockchain_tests/amsterdam/glamsterdam/ and are replaced in place on each glamsterdam-devnet bump.

stable Fixtures

From v5.4.0

Dec 7, 2025

Osaka + some pre-Osaka tests (293 JSON files):

• state_tests/osaka/
• state_tests/prague/
• state_tests/cancun/
• state_tests/shanghai/
• blockchain_tests/osaka/

Test exclusions (GitHub file size limit):

• blockchain_tests/osaka/eip7934_block_rlp_limit/test_block_at_rlp_size_limit_boundary.json (101 MB)
• blockchain_tests/osaka/eip7934_block_rlp_limit/test_block_rlp_size_at_limit_with_all_typed_transactions.json (168 MB)
• blockchain_tests/osaka/eip7934_block_rlp_limit/test_fork_transition_block_rlp_limit.json (134 MB)

dev Fixtures

• tests-glamsterdam-devnet@v8.1.0

  Aug 5, 2026

  glamsterdam-devnet-8

  Amsterdam EIP mix, BAL definitions included

  714 JSON files

  • blockchain_tests/amsterdam/glamsterdam/ (replaced in place; upstream path blockchain_tests/for_amsterdam/amsterdam/)
  • Supersedes v7.2.1 (glamsterdam-devnet-7). Skipped intermediate tags v8.0.0–v8.0.x in this snapshot; v8.0.0 carries the main spec deltas (see below). v8.1.0 adds EIP-8038 revised gas schedule and EIP-2780 intrinsic-gas coverage only; EngineX / eth/72 (EIP-8070) fixtures upstream are not consumed.
  • v8.0.0 spec deltas (included via v8.1.0): EIP-2780 transfer-log cost folded into TX_VALUE_COST; EIP-8037 “regular gas” → “execution gas” (terminology); EIP-8038 access-list costs = cold minus WARM_ACCESS (2900 per address/key); EIP-8070 eth/72 sparse blobpool mandatory upstream (execute-only, not in tarball).
  • v8.1.0 spec delta: EIP-8038 revised repricing schedule (EIPs#12083); EIP-2780 additional intrinsic-gas test coverage.

• bal@v3.0.1

  Jan 13, 2026

  EIP-7928 only

  No mixture, no BAL definitions, EVM tests passing

  110 JSON files

  • blockchain_tests/amsterdam/v301_single_bal_no_bal_defs/eip7928_block_level_access_lists/

• bal@v2.0.0

  Dec 12, 2025

  EIP-7928 only

  No mixture, BAL definitions, somewhat outdated

  102 JSON files

  • blockchain_tests/amsterdam/v200_bal_defs_somewhat_outdated/eip7928_block_level_access_lists/

No files in this dev/ glamsterdam set exceeded the GitHub ~100 MB limit.

Notes

Upstream glamsterdam tarballs unpack as fixtures/blockchain_tests/for_<fork>/…. We copy only state_tests / blockchain_tests we consume (not engine-x, sync, or transaction tests).

Local download cache (gitignored via fixtures*): fixtures_*.tar.gz and extract dirs. Do not re-download if the tarball is already present and the sha256 matches the GitHub asset.

Large pushes may need a bigger HTTP buffer (details):

git config --global http.postBuffer 157286400