feat(core): run bounded real gateway sessions

core/tests/protocol_fixtures.rs

@@ -533,6 +533,16 @@ fn reassembly_discards_conflicts_and_expires_after_250_ms() {
     assert_eq!(reassembler.expired_units(), 1);
 }
 
+#[test]
+fn reassembly_expires_at_exactly_250_ms() {
+    let mut reassembler = Reassembler::new();
+    let expiring = MediaFragment::new_video(2, 1, 0, 2, vec![1]).expect("fragment");
+    reassembler.push(expiring, 10).expect("first");
+    let next = MediaFragment::new_video(3, 1, 0, 2, vec![1]).expect("fragment");
+    reassembler.push(next, 260).expect("expiry sweep");
+    assert_eq!(reassembler.expired_units(), 1);
+}
+
 #[test]
 fn reassembly_rejects_a_complete_unit_above_one_mebibyte() {
     let mut reassembler = Reassembler::new();
@@ -565,6 +575,14 @@ fn input_features_and_feedback_booleans_fail_closed() {
     );
 }
 
+#[test]
+fn disconnected_gateway_feedback_is_provider_free_control() {
+    assert_eq!(
+        decode_feedback(&decode_hex("5647463101130000")).expect("disconnected feedback"),
+        FeedbackEvent::Disconnected
+    );
+}
+
 #[test]
 fn fec_feedback_enforces_rc5_go_field_invariants_on_decode_and_encode() {
     for invalid in [