Testing checklist

A serious smart-contract portfolio should make correctness visible.

Constructor

• accepts 0 bps;
• accepts 1000 bps;
• rejects 1001 bps;
• rejects zero platform wallet.

Lifecycle

• creates valid escrow;
• increments IDs;
• rejects invalid creation inputs;
• funds only from Created and only by the client;
• delivers only from Funded and only by the freelancer;
• approves only from Delivered and only by the client;
• refunds only after the deadline and only from Funded.

Accounting

• fee rounding is correct;
• freelancer balance is credited correctly;
• platform balance is credited correctly;
• withdrawal reduces internal balance;
• multiple tokens remain isolated;
• failed token transfers revert appropriately.