[WIP] Daemon & CLI

iota-daemon-lib/tests/daemon_health.rs

@@ -0,0 +1,29 @@
+use iota_daemon_lib::{DaemonRuntime, StartupPhase};
+use iota_ipc::{ComponentId, HealthStatus, LifecyclePhase};
+
+#[test]
+fn component_failures_are_independent_and_recovery_is_scoped() {
+    let runtime = DaemonRuntime::new();
+    runtime.set_component_degraded(ComponentId::Omikron, "offline".into());
+    runtime.set_component_failed(ComponentId::Web, "bind failed".into());
+    runtime.set_startup_phase(StartupPhase::Ready);
+    let snapshot = runtime.snapshot();
+    assert_eq!(snapshot.lifecycle, LifecyclePhase::Ready);
+    assert_eq!(snapshot.overall_health, HealthStatus::Degraded);
+    assert_eq!(
+        snapshot.components[&ComponentId::Omikron].status,
+        HealthStatus::Degraded
+    );
+    runtime.set_component_healthy(ComponentId::Web, None);
+    assert_eq!(
+        runtime.snapshot().components[&ComponentId::Omikron].status,
+        HealthStatus::Degraded
+    );
+}
+
+#[test]
+fn critical_failure_is_failed_but_optional_degradation_is_not() {
+    let runtime = DaemonRuntime::new();
+    runtime.set_component_failed(ComponentId::Storage, "database unavailable".into());
+    assert_eq!(runtime.snapshot().overall_health, HealthStatus::Failed);
+}