test token-revert bubble-up paths in LibFlow transfers

[thedavidmeister]

Summary

Three new fuzz tests, one per token standard, pinning that an underlying token revert propagates out of flow() rather than being caught and swallowed by SafeERC20 or the bare ERC721/ERC1155 interface calls in LibFlow.

• testFlowERC20TokenRevertBubblesUp — TOKEN_A.transferFrom reverts.
• testFlowERC721TokenRevertBubblesUp — TOKEN_B.safeTransferFrom reverts.
• testFlowERC1155TokenRevertBubblesUp — TOKEN_C.safeTransferFrom reverts.

Closes #331.

Test plan

• all 3 tests, 100 fuzz runs each

🤖 Generated with Claude Code

[coderabbitai]

Warning

Rate limit exceeded

@thedavidmeister has exceeded the limit for the number of commits that can be reviewed per hour. Please wait 34 minutes and 14 seconds before requesting another review.

To keep reviews running without waiting, you can enable usage-based add-on for your organization. This allows additional reviews beyond the hourly cap. Account admins can enable it under billing.

⌛ How to resolve this issue?

After the wait time has elapsed, a review can be triggered using the @coderabbitai review command as a PR comment. Alternatively, push new commits to this PR.

We recommend that you space out your commits to avoid hitting the rate limit.

🚦 How do rate limits work?

CodeRabbit enforces hourly rate limits for each developer per organization.

Our paid plans have higher rate limits than the trial, open-source and free plans. In all cases, we re-allow further reviews after a brief timeout.

Please see our FAQ for further information.

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: 41337219-3303-42c7-8e67-bf022b56f57b

📥 Commits

Reviewing files that changed from the base of the PR and between ceaea3c and 79fbf70.

📒 Files selected for processing (1)

• test/src/concrete/Flow.transfer.t.sol

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch 2026-05-05-issue-331-token-revert-bubble-tests

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}