Enhance GovernorWithParams Testing: Edge Cases, Refactoring, and Documentation

[techvoyagerX]

🧐 Motivation
The current tests for the GovernorWithParams extension cover nominal cases and primary signature-based voting scenarios. However, there is an opportunity to further improve the robustness and maintainability of these tests by:

• Expanding edge case coverage (e.g., testing empty or malformed parameters and multiple sequential signature votes)
• Refactoring duplicate signature verification logic into a shared helper function
• Clarifying address comparisons for consistency (using .address or .target appropriately)
• Enhancing inline documentation to better explain vote weight calculations and signature validations

📝 Details

• Edge Case Testing:

  • Added tests to check for proper reversion when voting with empty parameters.
  • Included tests to verify that multiple sequential signature votes are handled correctly with nonce checks.

• Refactoring:

  • Extracted a helper function (signVote) for signing votes, reducing duplicate code in both EOA and EIP-1271 signature tests.

• Documentation & Consistency:

  • Updated inline comments to improve clarity on parameter manipulations and signature verification logic.
  • Standardized address comparisons in the deployment check section.

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