uptime-monitoring/test/webhook.spec.ts

import { applyD1Migrations, env, type D1Migration } from "cloudflare:test";
import { afterEach, beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
import { sendIncidentAlert } from "../src/worker/notifications/webhook";
import type { Monitor } from "../src/worker/checks/run-check";

describe("incident webhooks", () => {
	beforeAll(async () => {
		const testEnv = env as Env & { TEST_MIGRATIONS: D1Migration[] };
		await applyD1Migrations(testEnv.DB, testEnv.TEST_MIGRATIONS);
	});
	beforeEach(async () => {
		await env.DB.prepare("DELETE FROM notification_settings").run();
		const now = Date.now();
		await env.DB.prepare("INSERT INTO notification_settings (id, webhook_url, webhook_enabled, created_at, updated_at) VALUES (1, 'https://hooks.example.test/events', 1, ?, ?)").bind(now, now).run();
	});
	afterEach(() => vi.unstubAllGlobals());

	const monitor = {
		id: 7, name: "API", url: "https://api.example.com", method: "GET", expectedStatus: 200,
		intervalSeconds: 300, timeoutMs: 10000, enabled: true, alertsEnabled: true, lastOk: true,
		lastStatusCode: 200, lastLatencyMs: 30, lastError: null, lastCheckedAt: null,
		createdAt: new Date(), updatedAt: new Date(),
	} satisfies Monitor;

	it("sends the compact down payload", async () => {
		const fetchMock = vi.fn(async () => new Response(null, { status: 204 }));
		vi.stubGlobal("fetch", fetchMock);
		const at = new Date("2026-08-28T03:25:00Z");
		expect(await sendIncidentAlert(env, { monitor, kind: "opened", result: { ok: false, statusCode: 500, latencyMs: 42, error: "Down" }, at })).toBe(true);
		const [, init] = fetchMock.mock.calls[0];
		expect(JSON.parse(String(init?.body))).toEqual({
			event: "down",
			monitor: { id: 7, name: "API", url: "https://api.example.com" },
			statusCode: 500,
			error: "Down",
			at: "2026-08-28T03:25:00.000Z",
		});
	});

	it("swallows webhook network failures", async () => {
		vi.stubGlobal("fetch", vi.fn(async () => { throw new Error("network unavailable"); }));
		await expect(sendIncidentAlert(env, { monitor, kind: "resolved", result: { ok: true, statusCode: 200, latencyMs: 20, error: null }, at: new Date() })).resolves.toBe(false);
	});
});