Regression Testing

Preventing bugs from returning.

Once you’ve fixed a bug, use Grat to ensure it never returns.

Exporting Test Cases

Use the grat export command to turn a failed mainnet transaction into a local unit test.

grat export <tx-hash> --format test

Integrating with CI

Add the exported test cases to your Rust test suite. Grat ensures the test environment perfectly matches the mainnet state where the bug first occurred.