WEB Carrier Counters + Status

Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>

src/web/telemetry/tests.rs

@@ -0,0 +1,59 @@
+use super::*;
+use crate::config::WebCarrier;
+use crate::web::manager::CarrierFailure;
+
+#[test]
+fn fixed_counter_sets_and_acceptor_guard_are_exact() {
+    let telemetry = WebTelemetry::new();
+    let guard = telemetry.acceptor_guard();
+    assert_eq!(telemetry.live_acceptors(), 1);
+    telemetry.record_rejection(WebRejectionReason::HttpConnectionCapacity);
+    telemetry.record_overload(WebHttpConnectionOverloadOutcome::Dropped);
+    telemetry.record_decoy(WebDecoyUpstreamOutcome::ConnectRefused);
+    telemetry.record_carrier_selection(
+        WebCarrier::Https,
+        WebCarrierSelectionDisposition::Cold,
+    );
+    telemetry.record_carrier_failure(
+        WebCarrier::Https,
+        WebCarrierFailurePhase::Provisional,
+        CarrierFailure::Network,
+    );
+    telemetry.record_carrier_learning(
+        WebCarrier::Https,
+        WebCarrierLearningOutcome::Recorded,
+    );
+    assert_eq!(telemetry.rejection_counters().len(), WebRejectionReason::ALL.len());
+    assert_eq!(
+        telemetry.overload_counters().len(),
+        WebHttpConnectionOverloadOutcome::ALL.len()
+    );
+    assert_eq!(
+        telemetry.decoy_counters().len(),
+        WebDecoyUpstreamOutcome::ALL.len()
+    );
+    assert_eq!(
+        telemetry.carrier_selection_counters().len(),
+        WebCarrier::ALL.len() * WebCarrierSelectionDisposition::ALL.len()
+    );
+    assert_eq!(
+        telemetry.carrier_failure_counters().len(),
+        WebCarrier::ALL.len()
+            * WebCarrierFailurePhase::ALL.len()
+            * CarrierFailure::ALL.len()
+    );
+    assert_eq!(
+        telemetry.carrier_learning_counters().len(),
+        WebCarrier::ALL.len() * WebCarrierLearningOutcome::ALL.len()
+    );
+    assert_eq!(
+        telemetry.rejection_total(WebRejectionReason::HttpConnectionCapacity),
+        1
+    );
+    assert_eq!(
+        telemetry.last_decoy().map(|value| value.0),
+        Some("connect_refused")
+    );
+    drop(guard);
+    assert_eq!(telemetry.live_acceptors(), 0);
+}