Fix epoch reward calculation bug and improve test coverage #6
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- fix critical bug in reward calculation using upperLookup correctly - convert require statements to if+revert for custom error support - add unchecked blocks to loops for gas optimization (~3 gas per iteration) - remove unused imports (Arrays, Math) - update solidity version to 0.8.27 for consistency gas improvements: - stake: -24 gas (-0.007%) - unstake: -32 gas (-0.017%) - withdrawReward(30 epochs): -90 gas (-0.017%)
- add 18 new test cases covering security, edge cases, and multi-user scenarios - add reentrancy protection tests - add maximum value handling tests - add gas benchmark suite for tracking optimization impact - test coverage increased from 49 to 67 tests (+37%) all tests passing
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Overview
This PR fixes a critical bug in the epoch reward calculation and adds comprehensive test coverage to improve contract security and reliability.
Changes
Contract Improvements
upperLookup()for each epochrequire()statements toif + revertpatternuncheckedblocks to 9 loops (~3 gas saved per iteration)Test Enhancements
Gas Impact
stake(): -24 gas (-0.007%)unstake(): -32 gas (-0.017%)withdrawReward(30 epochs): -90 gas (-0.017%)Testing
All 67 tests passing ✅