fix(test): remove unverifiable cross-chain assertion from integration test

[iap]

Summary

testBridgeToTransfersTokensCrossChain switched to fork B and checked the recipient balance, but Foundry fork tests cannot simulate supersim's async message relay — the contract doesn't exist on the other fork.

Fix

Assert only the source-chain burn (fully verifiable). Added NatSpec explaining the relay limitation.

Verification

CHAIN_A_RPC_URL=http://127.0.0.1:9545 CHAIN_B_RPC_URL=http://127.0.0.1:9546 CHAIN_B_CHAIN_ID=902 \
  FOUNDRY_PROFILE=integration forge test --match-path 'test/integration/**/*.t.sol' -v
# 2 passed, 0 failed

Summary by CodeRabbit

• Tests
  • Updated bridge integration test to verify only source-chain token burn behavior, as destination-chain recipient delivery cannot be reliably simulated in fork testing environments.

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Scanned Files

None

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: b6a259fd-595b-454e-9721-1bf00a38b296

📥 Commits

Reviewing files that changed from the base of the PR and between 218d460 and 7993465.

📒 Files selected for processing (1)

• contracts/test/integration/bridge/MARKBridgeIntegration.t.sol

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Walkthrough

The PR refines the cross-chain bridge integration test by removing destination-chain balance assertions that cannot be verified in fork environments. The test documentation is updated to explicitly state this limitation, and the forkB balance check is removed, leaving only the source-chain burn verification intact.

Changes

Cross-chain bridge test refinement

Layer / File(s)	Summary
Test scope and documentation update contracts/test/integration/bridge/MARKBridgeIntegration.t.sol	The testBridgeToTransfersTokensCrossChain test documentation clarifies that only the source-chain token burn is verified; the destination-chain balance check on forkB is removed because cross-chain message relay cannot be simulated in fork tests.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

Possibly related PRs

• trade/mark#46: Introduced the cross-chain bridge verification behavior in MARKBridgeIntegration.t.sol that this PR now modifies by removing destination-chain assertions.

Poem

🐰 A bridge test now lighter,

Cross-chain dreams take flight,

We fork one chain, not two—

Fork magic has its limits bright! ✨

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 inconclusive)

Check name	Status	Explanation	Resolution
Description check	❓ Inconclusive	The description addresses the key sections (Summary, Fix, Verification) but omits several required template sections like Scope, Risk Review, Governance, and Linked Context.	Complete the PR description by filling in the Scope checkboxes, Risk Review section, Governance section, and Linked Context to match the repository template.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and specifically describes the main change: removing an unverifiable cross-chain assertion from an integration test.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feature/fix-integration-test-cross-chain

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