faultkit

Fault injection for testing error paths. Fail the Nth syscall and verify graceful handling.

Usage

use faultkit::FaultInjector;

let injector = FaultInjector::new();

// Fail the 3rd allocation
injector.set_fail_at(3);

// Your code runs normally for 2 allocations, then the 3rd fails
// Verify your code handles the failure gracefully

Why

Testing error paths is hard. Most code has unwrap() or ? on operations that "never fail" — until they do in production. faultkit lets you systematically test every error path by failing operations at specific points.

License

MIT