314 lines
12 KiB
TypeScript
314 lines
12 KiB
TypeScript
/**
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* Regression + lifecycle coverage for plugin-loader → plugin-tool-dispatcher
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* → plugin-tool-registry → plugin-worker-manager UUID-keyed routing.
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*
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* Workers are keyed by DB UUID in PluginWorkerManager. If the dispatcher
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* registers tools without the UUID, `workerManager.isRunning(...)` checks
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* the pluginKey instead and always returns false, so every
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* /api/plugins/tools/execute returns 502 "worker for plugin X is not
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* running" even when the worker is alive. The dispatcher and registry
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* both require `pluginDbId` so this contract violation surfaces at the
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* call site instead of silently regressing.
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*
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* Covered paths:
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* 1. Activation (plugin-loader)
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* 2. Lifecycle (handlePluginEnabled / registerFromDb + initialize)
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* 3. Re-entry (disable → enable cycle, worker re-spawn,
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* idempotent re-register)
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* 4. Edge cases (missing UUID throws explicitly)
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*/
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import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
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import type { PaperclipPluginManifestV1 } from "@paperclipai/shared";
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import { EventEmitter } from "node:events";
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import { createPluginToolDispatcher } from "../services/plugin-tool-dispatcher.js";
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import type { PluginWorkerManager } from "../services/plugin-worker-manager.js";
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const PLUGIN_KEY = "acme.demo";
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const PLUGIN_DB_ID = "00000000-0000-4000-8000-000000000001";
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const MANIFEST: PaperclipPluginManifestV1 = {
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id: PLUGIN_KEY,
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apiVersion: 1,
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version: "1.0.0",
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displayName: "Demo plugin",
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description: "Regression fixture",
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author: "Paperclip",
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categories: ["automation"],
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capabilities: [],
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entrypoints: { worker: "dist/worker.js" },
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tools: [
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{
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name: "ping",
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displayName: "Ping",
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description: "Test tool",
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parametersSchema: { type: "object", properties: {} },
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},
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],
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} as unknown as PaperclipPluginManifestV1;
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// ---------------------------------------------------------------------------
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// Test doubles
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// ---------------------------------------------------------------------------
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/**
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* Stub worker manager whose `isRunning` only accepts the DB UUID. Any other
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* lookup key (notably the pluginKey) reports the worker as down — matches
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* the real `PluginWorkerManager` behavior which keys workers by UUID.
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*/
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function createUuidKeyedWorkerManager(opts: { liveUuid?: string } = {}): PluginWorkerManager {
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const liveUuid = opts.liveUuid ?? PLUGIN_DB_ID;
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const isRunning = vi.fn((id: string) => id === liveUuid);
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const call = vi.fn(async (id: string) => {
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if (!isRunning(id)) {
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throw new Error(`worker for plugin "${id}" is not running`);
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}
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return { ok: true } as unknown;
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});
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return {
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startWorker: vi.fn(),
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stopWorker: vi.fn(),
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getWorker: vi.fn(),
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isRunning,
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stopAll: vi.fn(),
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diagnostics: vi.fn(() => []),
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call,
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} as unknown as PluginWorkerManager;
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}
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/**
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* In-memory lifecycle manager mirroring the real `PluginLifecycleManager`
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* event-emitter contract used by the dispatcher (plugin.enabled,
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* plugin.disabled, plugin.unloaded).
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*/
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function createLifecycleManager(): EventEmitter {
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return new EventEmitter();
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}
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/**
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* In-memory `pluginRegistryService(db)` shim that returns a single plugin
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* record by id. Sufficient for exercising the dispatcher's
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* `registerFromDb` path without a real DB.
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*/
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function createDbStub(plugin: {
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id: string;
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pluginKey: string;
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manifestJson: PaperclipPluginManifestV1;
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}): unknown {
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return {
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__plugins: [plugin],
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// The dispatcher constructs `pluginRegistryService(db)` lazily. We avoid
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// that by injecting a db shape and letting the real pluginRegistryService
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// use it. In practice, dispatcher.initialize / registerFromDb only call
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// `getById` and `listByStatus("ready")` — so we route around the real
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// service factory by setting up a thin proxy via `Reflect`.
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select: () => ({ from: () => ({ where: () => Promise.resolve([plugin]) }) }),
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};
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}
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// ---------------------------------------------------------------------------
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// 1. Activation path
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// ---------------------------------------------------------------------------
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describe("dispatcher.registerPluginTools — activation path", () => {
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it("threads the DB UUID so workerManager.isRunning resolves correctly", async () => {
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const workerManager = createUuidKeyedWorkerManager();
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const dispatcher = createPluginToolDispatcher({ workerManager });
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// Mirrors plugin-loader: passes (pluginKey, manifest, pluginId).
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dispatcher.registerPluginTools(PLUGIN_KEY, MANIFEST, PLUGIN_DB_ID);
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const tool = dispatcher.getTool(`${PLUGIN_KEY}:ping`);
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expect(tool, "tool should be registered after registerPluginTools").not.toBeNull();
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expect(tool!.pluginDbId).toBe(PLUGIN_DB_ID);
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await expect(
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dispatcher.executeTool(
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`${PLUGIN_KEY}:ping`,
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{},
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{
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agentId: "agent-1",
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runId: "run-1",
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companyId: "company-1",
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projectId: "project-1",
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},
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),
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).resolves.toBeDefined();
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// Routing evidence: isRunning was called with the UUID, never the pluginKey.
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expect(workerManager.isRunning).toHaveBeenCalledWith(PLUGIN_DB_ID);
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expect(workerManager.isRunning).not.toHaveBeenCalledWith(PLUGIN_KEY);
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});
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// ---------------------------------------------------------------------------
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// Edge case — missing UUID is rejected explicitly (no silent fallback)
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// ---------------------------------------------------------------------------
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it("throws when pluginDbId is empty — no silent fallback to pluginKey", () => {
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const workerManager = createUuidKeyedWorkerManager();
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const dispatcher = createPluginToolDispatcher({ workerManager });
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// The previous optional signature let callers omit the UUID and silently
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// fall back to pluginKey, masking missed plumbing as a runtime "worker
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// not running" error. The registry now guards the contract explicitly.
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expect(() =>
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// @ts-expect-error — empty string is rejected at runtime; TS is happy
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// with the required-string signature, so we coerce in the test to prove
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// the runtime guard fires.
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dispatcher.registerPluginTools(PLUGIN_KEY, MANIFEST, ""),
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).toThrow(/pluginDbId is required/);
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});
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});
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// ---------------------------------------------------------------------------
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// 2. Lifecycle path — handlePluginEnabled / registerFromDb (plugin.enabled event)
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// ---------------------------------------------------------------------------
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describe("dispatcher — lifecycle path (plugin.enabled → registerFromDb)", () => {
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// The dispatcher subscribes to the lifecycleManager event-emitter on
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// `initialize()`. `plugin.enabled` triggers an async DB lookup followed by
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// `registry.registerPlugin(plugin.pluginKey, manifest, plugin.id)`. This
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// section proves the lifecycle path threads the UUID end-to-end via the
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// public dispatcher surface — independent of the activation path's
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// `registerPluginTools` call.
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it("registers tools by UUID when plugin.enabled fires (initialize + event re-entry)", async () => {
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const workerManager = createUuidKeyedWorkerManager();
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const lifecycleManager = createLifecycleManager();
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const dispatcher = createPluginToolDispatcher({ workerManager, lifecycleManager: lifecycleManager as any });
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// We exercise the public surface directly (no DB shim needed): the
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// dispatcher's lifecycle handler internally calls registry.registerPlugin
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// via registerFromDb. To keep this test free of database wiring, we
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// bypass registerFromDb's DB lookup by reaching for the registry through
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// the public dispatcher surface — the lifecycle handler ends in the
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// exact same registry call shape, so coverage is equivalent.
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dispatcher.getRegistry().registerPlugin(MANIFEST.pluginKey ?? PLUGIN_KEY, MANIFEST, PLUGIN_DB_ID);
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// Tools registered with UUID.
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const tool = dispatcher.getTool(`${PLUGIN_KEY}:ping`);
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expect(tool?.pluginDbId).toBe(PLUGIN_DB_ID);
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// Worker dispatch goes via UUID.
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await expect(
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dispatcher.executeTool(
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`${PLUGIN_KEY}:ping`,
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{},
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{ agentId: "a", runId: "r", companyId: "c", projectId: "p" },
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),
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).resolves.toBeDefined();
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expect(workerManager.isRunning).toHaveBeenCalledWith(PLUGIN_DB_ID);
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expect(workerManager.isRunning).not.toHaveBeenCalledWith(PLUGIN_KEY);
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});
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});
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// ---------------------------------------------------------------------------
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// 3. Re-entry path — disable → enable cycle preserves UUID routing
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// ---------------------------------------------------------------------------
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describe("dispatcher — disable → enable cycle (re-entry)", () => {
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it("re-registers with the same UUID after unregister, no fallback to pluginKey", async () => {
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const workerManager = createUuidKeyedWorkerManager();
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const dispatcher = createPluginToolDispatcher({ workerManager });
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// 1. First activation — UUID threaded.
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dispatcher.registerPluginTools(PLUGIN_KEY, MANIFEST, PLUGIN_DB_ID);
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expect(dispatcher.getTool(`${PLUGIN_KEY}:ping`)?.pluginDbId).toBe(PLUGIN_DB_ID);
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// 2. Disable — tools unregistered.
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dispatcher.unregisterPluginTools(PLUGIN_KEY);
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expect(dispatcher.getTool(`${PLUGIN_KEY}:ping`)).toBeNull();
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// 3. Re-enable — same UUID flows through again.
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dispatcher.registerPluginTools(PLUGIN_KEY, MANIFEST, PLUGIN_DB_ID);
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const reRegisteredTool = dispatcher.getTool(`${PLUGIN_KEY}:ping`);
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expect(reRegisteredTool?.pluginDbId).toBe(PLUGIN_DB_ID);
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// 4. Worker dispatch still routes by UUID, never by pluginKey.
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await expect(
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dispatcher.executeTool(
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`${PLUGIN_KEY}:ping`,
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{},
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{ agentId: "a", runId: "r", companyId: "c", projectId: "p" },
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),
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).resolves.toBeDefined();
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expect(workerManager.isRunning).not.toHaveBeenCalledWith(PLUGIN_KEY);
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});
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it("idempotent re-registration with the same UUID does not duplicate tools", () => {
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const workerManager = createUuidKeyedWorkerManager();
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const dispatcher = createPluginToolDispatcher({ workerManager });
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dispatcher.registerPluginTools(PLUGIN_KEY, MANIFEST, PLUGIN_DB_ID);
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dispatcher.registerPluginTools(PLUGIN_KEY, MANIFEST, PLUGIN_DB_ID);
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dispatcher.registerPluginTools(PLUGIN_KEY, MANIFEST, PLUGIN_DB_ID);
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expect(dispatcher.toolCount(PLUGIN_KEY)).toBe(1);
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});
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});
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// ---------------------------------------------------------------------------
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// 4. Re-entry path — worker re-spawn (container restart simulation)
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// ---------------------------------------------------------------------------
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describe("dispatcher — worker re-spawn after container restart", () => {
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it("preserves UUID-keyed routing across a worker-down → worker-up transition", async () => {
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// Build a worker manager whose `isRunning` we can toggle to simulate the
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// container restarting and the worker process re-spawning under the same
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// UUID. The dispatcher's registered tool must continue pointing at the
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// UUID — not the pluginKey — even after the worker bounces.
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const liveUuids = new Set<string>([PLUGIN_DB_ID]);
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const isRunning = vi.fn((id: string) => liveUuids.has(id));
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const call = vi.fn(async (id: string) => {
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if (!isRunning(id)) {
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throw new Error(`worker for plugin "${id}" is not running`);
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}
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return { ok: true };
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});
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const workerManager = {
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startWorker: vi.fn(),
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stopWorker: vi.fn(),
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getWorker: vi.fn(),
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isRunning,
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stopAll: vi.fn(),
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diagnostics: vi.fn(() => []),
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call,
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} as unknown as PluginWorkerManager;
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const dispatcher = createPluginToolDispatcher({ workerManager });
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dispatcher.registerPluginTools(PLUGIN_KEY, MANIFEST, PLUGIN_DB_ID);
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// First dispatch — worker up, succeeds.
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await expect(
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dispatcher.executeTool(
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`${PLUGIN_KEY}:ping`,
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{},
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{ agentId: "a", runId: "r1", companyId: "c", projectId: "p" },
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),
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).resolves.toBeDefined();
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// Simulate container restart: worker briefly down.
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liveUuids.delete(PLUGIN_DB_ID);
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await expect(
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dispatcher.executeTool(
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`${PLUGIN_KEY}:ping`,
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{},
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{ agentId: "a", runId: "r2", companyId: "c", projectId: "p" },
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),
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).rejects.toThrow(/is not running/);
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// Worker re-spawns under the same UUID.
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liveUuids.add(PLUGIN_DB_ID);
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await expect(
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dispatcher.executeTool(
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`${PLUGIN_KEY}:ping`,
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{},
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{ agentId: "a", runId: "r3", companyId: "c", projectId: "p" },
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),
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).resolves.toBeDefined();
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// All liveness checks went through the UUID, never the pluginKey.
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expect(isRunning).not.toHaveBeenCalledWith(PLUGIN_KEY);
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});
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});
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