Domain Invariant Assertion

Verify domain invariants by analyzing Go source and test files to identify properties like non-negative balances and state transitions, checking their enforcement status, and reporting missing invariants or inadequate test coverage.

Domain invariants are properties that must always hold true, such as zero-sum transfers. They need test coverage to prevent subtle bugs and ensure business logic integrity across all code paths.

Check for missing invariants by analyzing source and test files to inventory existing properties, validate state machine transitions, and identify critical business logic rules that should exist but are absent.

Yes, invariant verification works with financial application logic by checking that account balances never go below zero, transfer amounts are positive, and account state transitions adhere to defined lifecycles.

The best way to audit test coverage is to systematically evaluate source and test files to assess the extent to which critical domain invariants are covered, reporting on enforcement status and missing tests.

Start using domain invariant assertion by running it against your models and service directories to automatically discover, inventory, and validate invariants across the analyzed Go source files.