migrate-to-shoehorn

To remove unsafe as type assertions in TypeScript test files, replace them with type-safe @total-typescript/shoehorn helpers like fromPartial() to maintain type safety while reducing boilerplate for partial test data.

The best way to replace as unknown as Type casts in TypeScript error testing is using the fromAny() helper from @total-typescript/shoehorn, which safely handles intentionally incorrect test data without requiring manual double as casts.

Reduce TypeScript test boilerplate for partial mock data by applying the fromPartial() helper, which allows you to specify only the properties relevant to the test case instead of faking all properties of large objects.

Migrating test assertions to shoehorn helpers does not modify production code, as the type-safe replacement patterns are applied strictly to TypeScript unit and integration test suites to adhere to TypeScript best practices.

You should replace as Type casts in your TypeScript test suite when you need to reduce test boilerplate for partial test data, eliminate double as casts for error testing, and enforce type safety without violating TypeScript best practices.