🗒️ Description

Fixes the ModExpInput.from_bytes parser to pad inputs when necessary, but also retain the unpadded input which later becomes the actual input to the precompile in the test.

Previous behavior

The ModExpInput.from_bytes parser would not pad and in fact modify the lengths passed to the pre-compile.

New behavior

The ModExpInput.from_bytes parser now pads the input before processing and calculating the gas but also retains the original input to then pass it unpadded to the pre-compile.

Affected tests

Only guido-4-even, but the gas calculation remained unaffected, the only change was the expected output.

🔗 Related Issues or PRs

N/A.

✅ Checklist

• All: Ran fast tox checks to avoid unnecessary CI fails, see also Code Standards and Enabling Pre-commit Checks:

  uvx --with=tox-uv tox -e lint,typecheck,spellcheck,markdownlint

• All: PR title adheres to the repo standard - it will be used as the squash commit message and should start type(scope):.
• All: Considered adding an entry to CHANGELOG.md.
• All: Considered updating the online docs in the ./docs/ directory.
• All: Set appropriate labels for the changes (only maintainers can apply labels).