Record project continuation changes

2026-05-12 21:02:29 +03:00
parent 3059d1d7a3
commit 8f69d53193
339 changed files with 101111 additions and 1769 deletions
@@ -188,3 +188,71 @@ func TestPeerConnectionManagerProbesRelayControlLease(t *testing.T) {
 		t.Fatalf("unexpected tracker snapshot: %+v", snapshot)
 	}
 }
+
+func TestPeerConnectionManagerFallsBackAcrossEndpointCandidates(t *testing.T) {
+	now := time.Date(2026, 4, 30, 12, 0, 0, 0, time.UTC)
+	current := now
+	server := httptest.NewServer(Server{
+		Local: PeerIdentity{ClusterID: "cluster-1", NodeID: "node-b"},
+	}.Handler())
+	defer server.Close()
+
+	local := PeerIdentity{ClusterID: "cluster-1", NodeID: "node-a"}
+	cache := NewPeerCache(PeerCacheConfig{
+		Local: local,
+		PeerEndpointCandidates: map[string][]PeerEndpointCandidate{
+			"node-b": {
+				{
+					EndpointID:       "node-b-dead",
+					NodeID:           "node-b",
+					Transport:        "direct_http",
+					Address:          "http://127.0.0.1:1",
+					Reachability:     "private",
+					ConnectivityMode: "private_lan",
+					Priority:         1,
+				},
+				{
+					EndpointID:       "node-b-live",
+					NodeID:           "node-b",
+					Transport:        "direct_http",
+					Address:          server.URL,
+					Reachability:     "private",
+					ConnectivityMode: "private_lan",
+					Priority:         2,
+				},
+			},
+		},
+		WarmPeerLimit: 1,
+		Now:           now,
+	})
+	tracker := NewPeerConnectionTracker(cache.Snapshot(), now)
+	manager := NewPeerConnectionManager(PeerConnectionManagerConfig{
+		Local:        local,
+		PeerCache:    cache,
+		Tracker:      tracker,
+		HTTPClient:   &http.Client{Timeout: 100 * time.Millisecond},
+		ProbeTimeout: 100 * time.Millisecond,
+		Now: func() time.Time {
+			current = current.Add(10 * time.Millisecond)
+			return current
+		},
+	})
+
+	cycle := manager.ProbeOnce(context.Background())
+	if cycle.Attempted != 1 || cycle.Succeeded != 1 || cycle.Failed != 0 || len(cycle.Results) != 1 {
+		t.Fatalf("unexpected cycle: %+v", cycle)
+	}
+	result := cycle.Results[0]
+	if result.LinkStatus != PeerConnectionProbeReachable || result.SelectedCandidateID != "node-b-live" || result.SelectedEndpoint != server.URL {
+		t.Fatalf("fallback did not select live candidate: %+v", result)
+	}
+	if len(result.CandidateResults) != 2 ||
+		result.CandidateResults[0].LinkStatus != PeerConnectionProbeUnreachable ||
+		result.CandidateResults[1].LinkStatus != PeerConnectionProbeReachable {
+		t.Fatalf("candidate probe trail mismatch: %+v", result.CandidateResults)
+	}
+	snapshot := tracker.Snapshot()
+	if snapshot.Ready != 1 || len(snapshot.Entries) != 1 || snapshot.Entries[0].BestCandidateID != "node-b-live" || snapshot.Entries[0].Endpoint != server.URL {
+		t.Fatalf("tracker did not retain selected candidate: %+v", snapshot)
+	}
+}