//! Failover and circuit-breaker tests.

//!

//! These tests do NOT spin up the Bonsai classifier (it would require loading

//! the 8B GGUF model). Instead, they verify the primitives used by the router:

//! the `HealthTracker` circuit breaker.

use brainrouter::health::HealthTracker;

#[test]

fn circuit_breaker_opens_after_threshold_failures() {

let tracker = HealthTracker::new();

let key = "manifest";

// Initially healthy

assert!(tracker.is_healthy(key));

// Report the threshold number of failures (3 per implementation)

tracker.report_failure(key);

tracker.report_failure(key);

assert!(tracker.is_healthy(key), "still healthy below threshold");

tracker.report_failure(key);

// Now the circuit should be open

assert!(!tracker.is_healthy(key), "circuit should be open after 3 failures");

}

#[test]

fn reporting_success_resets_circuit() {

let tracker = HealthTracker::new();

let key = "manifest";

// Trip the breaker

tracker.report_failure(key);

tracker.report_failure(key);

tracker.report_failure(key);

assert!(!tracker.is_healthy(key));

// Success reports should reset it

tracker.report_success(key);

assert!(tracker.is_healthy(key));

}

#[test]

fn independent_providers_have_independent_state() {

let tracker = HealthTracker::new();

// Break one provider

tracker.report_failure("manifest");

tracker.report_failure("manifest");

tracker.report_failure("manifest");

assert!(!tracker.is_healthy("manifest"));

// The other provider is unaffected

assert!(tracker.is_healthy("llama-swap"));

}