Initial Commit

packages/networking/network/network-discovery-hybrid/tests/integration.test.ts

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+/**
+ * Integration suite for `HybridDiscoveryManager`.
+ *
+ * Per the spec (Phase 6 of the proposal): exercises the orchestrator
+ * against real `DiscoveryStrategy` implementations (the in-package
+ * `TestStrategy` real fixture under `tests/setup/test-strategy.ts`),
+ * NOT mocks. NO `vi.mock` / `jest.mock` / `__mocks__` anywhere in this
+ * suite. The five shipped Wave-2 sibling discovery packages are
+ * dependency-graph imported via `dep-graph-siblings.test.ts` (separate
+ * file) to prove they are reachable as optional peer-deps — but the
+ * orchestrator-level behaviour assertions in THIS file run against the
+ * faster, deterministic `TestStrategy` so the suite is hermetic.
+ *
+ * Scenarios covered:
+ *   1. Register all five Wave-2 sibling IDs + verify peer dedup with
+ *      `PeerSource` correctness.
+ *   2. Degrade one strategy and verify fallback to next-healthiest.
+ *   3. Lifecycle (start all → stop → restart) idempotency.
+ */
+import { describe, expect, it } from "@suaveplan/testing/runner";
+import { HybridDiscoveryManager } from "../src/index.js";
+import { makePeer, TestStrategy } from "./setup/test-strategy.js";
+
+describe("HybridDiscoveryManager — integration against real strategies", () => {
+    it("registers all five Wave-2 sibling ids and dedupes with PeerSource provenance", {
+        timeout: 10_000,
+    }, async () => {
+        // Shared peer "alice" is observed by 3 strategies; "bob" by 2;
+        // "charlie" by 1; each strategy also contributes a unique peer.
+        const sharedAlice = makePeer("alice", "shared");
+        const sharedBob = makePeer("bob", "shared");
+
+        const peerJs = new TestStrategy({
+            name: "peerjs",
+            peers: [sharedAlice, makePeer("uniq-peerjs", "peerjs")],
+        });
+        const trystero = new TestStrategy({
+            name: "trystero",
+            peers: [
+                sharedAlice,
+                sharedBob,
+                makePeer("uniq-trystero", "trystero"),
+            ],
+        });
+        const crdt = new TestStrategy({
+            name: "crdt",
+            peers: [sharedAlice, makePeer("uniq-crdt", "crdt")],
+        });
+        const webtorrent = new TestStrategy({
+            name: "webtorrent",
+            peers: [sharedBob, makePeer("uniq-webtorrent", "webtorrent")],
+        });
+        const gundb = new TestStrategy({
+            name: "gundb",
+            peers: [
+                makePeer("charlie", "gundb"),
+                makePeer("uniq-gundb", "gundb"),
+            ],
+        });
+
+        const m = new HybridDiscoveryManager({
+            strategy: "hybrid",
+            strategies: [
+                { id: "peerjs", priority: "primary", strategy: peerJs },
+                { id: "trystero", priority: "primary", strategy: trystero },
+                { id: "crdt", priority: "fallback", strategy: crdt },
+                {
+                    id: "webtorrent",
+                    priority: "fallback",
+                    strategy: webtorrent,
+                },
+                { id: "gundb", priority: "backup", strategy: gundb },
+            ],
+        });
+
+        await m.start();
+        const peers = await m.discover(2000);
+        // Unique peer ids: alice, bob, charlie, uniq-peerjs, uniq-trystero,
+        // uniq-crdt, uniq-webtorrent, uniq-gundb = 8.
+        expect(peers).toHaveLength(8);
+
+        const status = m.getStatus();
+        // PeerSource provenance: alice → 3 strategies; bob → 2; charlie → 1
+        // Cross-check via the per-strategy peer counts.
+        expect(status.peersByStrategy.peerjs).toBe(2);
+        expect(status.peersByStrategy.trystero).toBe(3);
+        expect(status.peersByStrategy.crdt).toBe(2);
+        expect(status.peersByStrategy.webtorrent).toBe(2);
+        expect(status.peersByStrategy.gundb).toBe(2);
+        expect(status.totalPeers).toBe(8);
+        expect(status.activeStrategies).toEqual([
+            "peerjs",
+            "trystero",
+            "crdt",
+            "webtorrent",
+            "gundb",
+        ]);
+
+        await m.stop();
+    });
+
+    it("degrades one strategy and falls back to the next healthiest", {
+        timeout: 10_000,
+    }, async () => {
+        const primary = new TestStrategy({
+            name: "peerjs",
+            peers: [makePeer("a", "peerjs")],
+        });
+        // Initially-failing factory that the fallback path will retry.
+        let factoryAttempts = 0;
+        const m = new HybridDiscoveryManager({
+            strategy: "hybrid",
+            autoFallback: true,
+            strategies: [
+                { id: "peerjs", priority: "primary", strategy: primary },
+                {
+                    id: "trystero",
+                    priority: "fallback",
+                    factory: async () => {
+                        factoryAttempts += 1;
+                        if (factoryAttempts === 1) {
+                            // Simulate "signaling broken" on first attempt;
+                            // the orchestrator records UNHEALTHY and treats
+                            // it as dormant. NO mocks.
+                            throw new Error("signaling unreachable");
+                        }
+                        return new TestStrategy({
+                            name: "trystero",
+                            peers: [makePeer("b", "trystero")],
+                        });
+                    },
+                },
+            ],
+        });
+
+        await m.start();
+        // Engineered degradation: cut the primary's signal. NO mocks.
+        primary.setAvailable(false);
+
+        // Drive the health-check directly so the suite stays under 10 s.
+        await (
+            m as unknown as {
+                strategyManager: { runHealthCheck(): Promise<void> };
+            }
+        ).strategyManager.runHealthCheck();
+
+        const status = m.getStatus();
+        const trysteroHealth = status.strategies.find(
+            (s) => s.id === "trystero"
+        );
+        expect(trysteroHealth?.active).toBe(true);
+        expect(factoryAttempts).toBe(2);
+
+        await m.stop();
+    });
+
+    it("lifecycle: start → stop → restart is idempotent + safe", {
+        timeout: 10_000,
+    }, async () => {
+        const s1 = new TestStrategy({
+            name: "peerjs",
+            peers: [makePeer("a", "peerjs")],
+        });
+        const s2 = new TestStrategy({
+            name: "trystero",
+            peers: [makePeer("b", "trystero")],
+        });
+        const m = new HybridDiscoveryManager({
+            strategy: "hybrid",
+            strategies: [
+                { id: "peerjs", priority: "primary", strategy: s1 },
+                { id: "trystero", priority: "fallback", strategy: s2 },
+            ],
+        });
+
+        await m.start();
+        let peers = await m.discover(1000);
+        expect(peers).toHaveLength(2);
+
+        await m.stop();
+        expect(await m.isAvailable()).toBe(false);
+
+        // Restart — verify everything is functional again.
+        await m.start();
+        peers = await m.discover(1000);
+        expect(peers).toHaveLength(2);
+        expect(s1.startedCount).toBe(2);
+        expect(s2.startedCount).toBe(2);
+
+        await m.stop();
+    });
+
+    it("shipped Wave-2 sibling packages are importable as optional peer-deps", {
+        timeout: 10_000,
+    }, async () => {
+        // Pure dep-graph reachability check — verifies that the five
+        // sibling packages are present in the workspace and that the
+        // hybrid orchestrator can dynamically load them via the factory
+        // path. We import the package's class symbols and assert they
+        // exist; we do NOT instantiate (each has transport-specific
+        // construction requirements that are exercised in the sibling's
+        // own test suite).
+        const peerjs = await import("@suaveplan/network-discovery-peerjs");
+        const crdt = await import("@suaveplan/network-discovery-crdt");
+        const trystero = await import("@suaveplan/network-discovery-trystero");
+        const webtorrent = await import(
+            "@suaveplan/network-discovery-webtorrent"
+        );
+        const gundb = await import("@suaveplan/network-discovery-gundb");
+
+        expect(peerjs.PeerJSDiscovery).toBeDefined();
+        expect(crdt.CRDTDiscovery).toBeDefined();
+        expect(trystero.TrysteroDiscovery).toBeDefined();
+        expect(webtorrent.WebTorrentDiscovery).toBeDefined();
+        expect(gundb.GunDBDiscovery).toBeDefined();
+    });
+});