51 lines
1.6 KiB
TypeScript
51 lines
1.6 KiB
TypeScript
import { existsSync, type FSWatcher, mkdtempSync, rmSync } from "node:fs";
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import { tmpdir } from "node:os";
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import { join } from "node:path";
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import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
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import { EventsWatcher } from "../src/events.js";
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import type { SlackBot, SlackEvent } from "../src/slack.js";
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describe("EventsWatcher fs.watch error handling", () => {
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let tempDir: string;
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beforeEach(() => {
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tempDir = mkdtempSync(join(tmpdir(), "mom-events-"));
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});
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afterEach(() => {
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if (tempDir && existsSync(tempDir)) {
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rmSync(tempDir, { recursive: true, force: true });
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}
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});
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it("retries the events fs watcher 5 seconds after an async error", async () => {
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vi.useFakeTimers();
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const slack = {
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enqueueEvent: vi.fn((_event: SlackEvent) => true),
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} as unknown as SlackBot;
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const eventsDir = join(tempDir, "events");
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const watcher = new EventsWatcher(eventsDir, slack);
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try {
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watcher.start();
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const watcherWithInternals = watcher as unknown as { watcher: FSWatcher | null };
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const originalWatcher = watcherWithInternals.watcher;
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expect(originalWatcher).not.toBeNull();
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expect(originalWatcher?.listenerCount("error")).toBeGreaterThan(0);
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originalWatcher?.emit("error", new Error("simulated EMFILE"));
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expect(watcherWithInternals.watcher).toBeNull();
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await vi.advanceTimersByTimeAsync(4999);
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expect(watcherWithInternals.watcher).toBeNull();
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await vi.advanceTimersByTimeAsync(1);
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expect(watcherWithInternals.watcher).not.toBeNull();
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expect(watcherWithInternals.watcher).not.toBe(originalWatcher);
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} finally {
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watcher.stop();
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vi.useRealTimers();
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}
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});
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});
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