I’ve been learning Solidity by building an escrow smart contract for milestone-based payments between clients and artists.

But instead of stopping at the happy path — I wanted to understand failure cases too.

So I used Foundry to write a full test suite that covers:
✅ role-based access control
✅ milestone validation
✅ reverts for unauthorized actions
✅ edge cases like double validation or overpayments
✅ gas profiling for critical functions

All contracts are modular for clarity:

• BaseContract.sol for storage
• ValidationContract.sol for validator flow
• EscrowContract.sol for deposits, refunds, and release
• ArtVault.sol ties it all together

Full repo with README, tests and gas report here:
→ https://github.com/HananeBendisari/ArtVault
Feedback welcome — especially from other Solidity learners or people who audit/test smart contracts regularly.