v0.34.0_1

src/metrics/vhost/tests.rs

@@ -1,5 +1,23 @@
 mod vhost_tests {
     use super::*;
+    #[test]
+    fn exclusive_bins_reconstruct_exact_prometheus_cumulative_boundaries() {
+        let m = VhostMetrics::default();
+        m.active.store(5, Ordering::Relaxed);
+        for micros in [1, 5_000, 5_001, 25_000, 5_000_001] {
+            m.complete(200, false, std::time::Duration::from_micros(micros), 0, 1040);
+        }
+        let (cumulative, total) = m.duration_histogram();
+        assert_eq!(total, 5);
+        assert_eq!(cumulative, [2, 3, 4, 4, 4, 4, 4, 4, 4, 4]);
+        assert_eq!(n(&m.buckets[0]), 2);
+        assert_eq!(n(&m.buckets[1]), 1);
+        assert_eq!(n(&m.buckets[2]), 1);
+        assert_eq!(n(&m.buckets[10]), 1);
+        assert_eq!(n(&m.completed), 5);
+        assert_eq!(n(&m.active), 0);
+    }
+
     #[test]
     fn streaming_completion_and_histogram() {
         let m = VhostMetrics::default();
@@ -10,7 +28,12 @@ mod vhost_tests {
         assert_eq!(n(&m.status[4]), 1);
         assert_eq!(n(&m.buckets[1]), 0);
         assert_eq!(n(&m.buckets[2]), 1);
-        assert_eq!(n(&m.buckets[10]), 1);
+        assert_eq!(n(&m.buckets[10]), 0); // exclusive +Inf bin
+        let (buckets, count) = m.duration_histogram();
+        assert_eq!(buckets[1], 0);
+        assert_eq!(buckets[2], 1);
+        assert_eq!(buckets[9], 1);
+        assert_eq!(count, 1);
         let view = m.view();
         assert_eq!(view.requests, 0);
         assert_eq!(view.completed, 1);