v0.11.1

src/engine/tests.rs

@@ -115,6 +115,37 @@ mod tests {
         assert!(!flow_timed_gate_update(&mut state, true, 30, start + chrono::Duration::seconds(32)));
     }
 
+    #[test]
+    fn flow_state_duration_respects_minimum_maximum_and_reset() {
+        let mut state = crate::models::FlowRuntimeNodeState::default();
+        let start = Utc.with_ymd_and_hms(2026, 9, 2, 12, 0, 0).unwrap();
+        assert_eq!(flow_state_duration_update(&mut state, true, 10, Some(30), start), (false, 0));
+        assert_eq!(flow_state_duration_update(&mut state, true, 10, Some(30), start + chrono::Duration::seconds(10)), (true, 10));
+        assert_eq!(flow_state_duration_update(&mut state, true, 10, Some(30), start + chrono::Duration::seconds(30)), (true, 30));
+        assert_eq!(flow_state_duration_update(&mut state, true, 10, Some(30), start + chrono::Duration::seconds(31)), (false, 31));
+        assert_eq!(flow_state_duration_update(&mut state, false, 10, Some(30), start + chrono::Duration::seconds(32)), (false, 0));
+        assert!(state.since.is_none());
+    }
+
+    #[test]
+    fn flow_change_gate_ignores_first_observation_and_detects_later_change() {
+        let mut state = crate::models::FlowRuntimeNodeState::default();
+        assert!(!flow_change_gate_update(&mut state, json!("off")));
+        assert!(!flow_change_gate_update(&mut state, json!("off")));
+        assert!(flow_change_gate_update(&mut state, json!("on")));
+        assert!(!flow_change_gate_update(&mut state, json!("on")));
+    }
+
+    #[test]
+    fn flow_rate_limit_prunes_rolling_window_and_blocks_at_limit() {
+        let mut state = crate::models::FlowRuntimeNodeState::default();
+        let start = Utc.with_ymd_and_hms(2026, 9, 2, 12, 0, 0).unwrap();
+        state.samples.push(crate::models::FlowRuntimeSample { at: start, value: 1.0 });
+        state.samples.push(crate::models::FlowRuntimeSample { at: start + chrono::Duration::seconds(10), value: 1.0 });
+        assert_eq!(flow_rate_limit_status(&mut state, 2, 60, start + chrono::Duration::seconds(20)), (false, 2));
+        assert_eq!(flow_rate_limit_status(&mut state, 2, 60, start + chrono::Duration::seconds(61)), (true, 1));
+    }
+
     #[test]
     fn flow_rolling_statistics_compute_mean_median_and_prune_window() {
         let mut state = crate::models::FlowRuntimeNodeState::default();