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import { getEventListeners } from "node:events";
import { describe, expect, it, vi } from "vitest";
import { createRuntimeChannel } from "./runtime-channel.js";
const dispatchRoutedChannelTurn = vi.hoisted(() => vi.fn(async () => ({ status: "handled" })));
vi.mock("../../channels/turn/lifecycle.js", async (importOriginal) => ({
...(await importOriginal<typeof import("../../channels/turn/lifecycle.js")>()),
dispatchRoutedChannelTurn,
}));
function requireWatcherEvent(mock: ReturnType<typeof vi.fn>, index: number) {
const event = mock.mock.calls[index]?.[0] as { type?: string } | undefined;
if (!event) {
throw new Error(`Expected watcher event ${index}`);
}
return event;
}
describe("inbound dispatch", () => {
it("carries the owning runtime reply dispatcher into routed channel turns", async () => {
const boundReplyDispatch = vi.fn();
const channel = createRuntimeChannel({ dispatchReplyFromConfig: boundReplyDispatch });
const turn = { channel: "qa-channel" } as Parameters<typeof channel.inbound.dispatch>[0];
await channel.inbound.dispatch(turn);
expect(dispatchRoutedChannelTurn).toHaveBeenCalledWith({
...turn,
dispatchReplyFromConfig: boundReplyDispatch,
});
});
});
describe("runtimeContexts", () => {
it("registers, resolves, watches, and unregisters contexts", () => {
const channel = createRuntimeChannel();
const onEvent = vi.fn();
const unsubscribe = channel.runtimeContexts.watch({
channelId: "matrix",
accountId: "default",
capability: "approval.native",
onEvent,
});
const lease = channel.runtimeContexts.register({
channelId: "matrix",
accountId: "default",
capability: "approval.native",
context: { client: "ok" },
});
expect(
channel.runtimeContexts.get<{ client: string }>({
channelId: "matrix",
accountId: "default",
capability: "approval.native",
}),
).toEqual({ client: "ok" });
expect(onEvent).toHaveBeenCalledWith({
type: "registered",
key: {
channelId: "matrix",
accountId: "default",
capability: "approval.native",
},
context: { client: "ok" },
});
lease.dispose();
expect(
channel.runtimeContexts.get({
channelId: "matrix",
accountId: "default",
capability: "approval.native",
}),
).toBeUndefined();
expect(onEvent).toHaveBeenLastCalledWith({
type: "unregistered",
key: {
channelId: "matrix",
accountId: "default",
capability: "approval.native",
},
});
unsubscribe();
});
it("auto-disposes registrations when the abort signal fires", () => {
const channel = createRuntimeChannel();
const controller = new AbortController();
const lease = channel.runtimeContexts.register({
channelId: "telegram",
accountId: "default",
capability: "approval.native",
context: { token: "abc" },
abortSignal: controller.signal,
});
controller.abort();
expect(
channel.runtimeContexts.get({
channelId: "telegram",
accountId: "default",
capability: "approval.native",
}),
).toBeUndefined();
lease.dispose();
});
it("removes its abort listener when the lease is disposed", () => {
const channel = createRuntimeChannel();
const controller = new AbortController();
const initialListenerCount = getEventListeners(controller.signal, "abort").length;
const lease = channel.runtimeContexts.register({
channelId: "telegram",
accountId: "default",
capability: "approval.native",
context: { token: "abc" },
abortSignal: controller.signal,
});
expect(getEventListeners(controller.signal, "abort")).toHaveLength(initialListenerCount + 1);
lease.dispose();
expect(getEventListeners(controller.signal, "abort")).toHaveLength(initialListenerCount);
});
it("removes the stale lease abort listener after a replacement registration", () => {
const channel = createRuntimeChannel();
const controller = new AbortController();
const initialListenerCount = getEventListeners(controller.signal, "abort").length;
const staleLease = channel.runtimeContexts.register({
channelId: "whatsapp",
accountId: "default",
capability: "connection.controller",
context: { token: "stale" },
abortSignal: controller.signal,
});
channel.runtimeContexts.register({
channelId: "whatsapp",
accountId: "default",
capability: "connection.controller",
context: { token: "replacement" },
abortSignal: controller.signal,
});
expect(getEventListeners(controller.signal, "abort")).toHaveLength(initialListenerCount + 2);
// Channel plugins dispose the previous lease after registering its replacement,
// so the stale token check must not skip listener cleanup.
staleLease.dispose();
expect(getEventListeners(controller.signal, "abort")).toHaveLength(initialListenerCount + 1);
expect(
channel.runtimeContexts.get({
channelId: "whatsapp",
accountId: "default",
capability: "connection.controller",
}),
).toEqual({ token: "replacement" });
});
it("does not register contexts when the abort signal is already aborted", () => {
const channel = createRuntimeChannel();
const onEvent = vi.fn();
const controller = new AbortController();
controller.abort();
channel.runtimeContexts.watch({
channelId: "matrix",
accountId: "default",
capability: "approval.native",
onEvent,
});
const lease = channel.runtimeContexts.register({
channelId: "matrix",
accountId: "default",
capability: "approval.native",
context: { client: "stale" },
abortSignal: controller.signal,
});
expect(
channel.runtimeContexts.get({
channelId: "matrix",
accountId: "default",
capability: "approval.native",
}),
).toBeUndefined();
expect(onEvent).not.toHaveBeenCalled();
lease.dispose();
});
it("isolates watcher exceptions so registration and disposal still complete", () => {
const channel = createRuntimeChannel();
const badWatcher = vi.fn((event) => {
throw new Error(`boom:${event.type}`);
});
const goodWatcher = vi.fn();
channel.runtimeContexts.watch({
channelId: "matrix",
accountId: "default",
capability: "approval.native",
onEvent: badWatcher,
});
channel.runtimeContexts.watch({
channelId: "matrix",
accountId: "default",
capability: "approval.native",
onEvent: goodWatcher,
});
const lease = channel.runtimeContexts.register({
channelId: "matrix",
accountId: "default",
capability: "approval.native",
context: { client: "ok" },
});
expect(
channel.runtimeContexts.get({
channelId: "matrix",
accountId: "default",
capability: "approval.native",
}),
).toEqual({ client: "ok" });
expect(requireWatcherEvent(badWatcher, 0).type).toBe("registered");
expect(requireWatcherEvent(goodWatcher, 0).type).toBe("registered");
lease.dispose();
expect(
channel.runtimeContexts.get({
channelId: "matrix",
accountId: "default",
capability: "approval.native",
}),
).toBeUndefined();
expect(requireWatcherEvent(badWatcher, 1).type).toBe("unregistered");
expect(requireWatcherEvent(goodWatcher, 1).type).toBe("unregistered");
});
it("auto-disposes when a watcher aborts during the registered event", () => {
const channel = createRuntimeChannel();
const controller = new AbortController();
const onEvent = vi.fn((event) => {
if (event.type === "registered") {
controller.abort();
}
});
channel.runtimeContexts.watch({
channelId: "matrix",
accountId: "default",
capability: "approval.native",
onEvent,
});
const lease = channel.runtimeContexts.register({
channelId: "matrix",
accountId: "default",
capability: "approval.native",
context: { client: "ok" },
abortSignal: controller.signal,
});
expect(
channel.runtimeContexts.get({
channelId: "matrix",
accountId: "default",
capability: "approval.native",
}),
).toBeUndefined();
expect(requireWatcherEvent(onEvent, 0).type).toBe("registered");
expect(requireWatcherEvent(onEvent, 1).type).toBe("unregistered");
lease.dispose();
});
});
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