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b1be050CC LABS App	1	/**
	2	* BLOCK S4 — Synthetic monitor tests.
	3	*
	4	* Covers:
	5	* - runSyntheticChecks returns one result per check
	6	* - green on 200 + expected key / expected substring
	7	* - red on wrong status / missing key / contains-failure / fetch-throw
	8	* - persistChecks inserts rows + publishes SSE
	9	* - latestStatusByCheck returns the most-recent row per name (via stub)
	10	* - runSyntheticMonitorTaskOnce fires webhook only on green->red
	11	* - /admin/status renders for site-admin, 403s for non-admin
	12	*
	13	* DI is via injected fetch + injected DB module. We follow the K1
	14	* spread-from-real pattern with afterAll cleanup so this file does not
	15	* poison downstream tests in the same `bun test` invocation.
	16	*/
	17
	18	import {
	19	describe,
	20	it,
	21	expect,
	22	mock,
	23	beforeEach,
	24	afterAll,
	25	} from "bun:test";
	26
	27	// Capture real modules before any mock.module() call so we can restore.
	28	const _real_db = await import("../db");
	29	const _real_admin = await import("../lib/admin");
	30
	31	// ---------------------------------------------------------------------------
	32	// Fakes
	33	// ---------------------------------------------------------------------------
	34
	35	const _inserted: { table: string; values: any }[] = [];
	36	let _latestRows: any[] = [];
	37	let _recentRedRows: any[] = [];
	38
	39	const tableName = (t: any): string => {
	40	if (!t) return "?";
	41	if ("checkName" in t) return "synthetic_checks";
	42	return "?";
	43	};
	44
	45	const _fakeDb = {
	46	db: {
	47	insert: (table: any) => ({
	48	values: async (vals: any) => {
	49	_inserted.push({ table: tableName(table), values: vals });
	50	return [];
	51	},
	52	}),
	53	select: (_cols?: any) => {
	54	const builder: any = {
	55	from: (_t: any) => builder,
	56	where: (_w: any) => builder,
	57	orderBy: (_o: any) => builder,
	58	limit: (_n: number) => Promise.resolve(_recentRedRows),
	59	};
	60	return builder;
	61	},
	62	execute: async (_q: any) => {
	63	// Drizzle returns either an array or { rows: [...] } depending on
	64	// the driver. We mimic the Neon serverless shape.
	65	return _latestRows;
	66	},
	67	},
	68	};
	69
	70	mock.module("../db", () => ({ ..._real_db, ..._fakeDb }));
	71
	72	afterAll(() => {
	73	mock.module("../db", () => _real_db);
	74	_latestRows = [];
	75	_recentRedRows = [];
	76	_inserted.length = 0;
	77	});
	78
	79	beforeEach(() => {
	80	_inserted.length = 0;
	81	_latestRows = [];
	82	_recentRedRows = [];
	83	});
	84
	85	// Imports must come AFTER mock.module() so the loaded module uses the
	86	// stubbed `db`.
	87	const {
	88	runSyntheticChecks,
	89	persistChecks,
	90	latestStatusByCheck,
	91	SYNTHETIC_CHECKS,
	92	SSE_TOPIC,
	93	__test,
	94	} = await import("../lib/synthetic-monitor");
	95	const { runSyntheticMonitorTaskOnce } = await import("../lib/autopilot");
	96	const sseMod = await import("../lib/sse");
	97
	98	// ---------------------------------------------------------------------------
	99	// Helpers
	100	// ---------------------------------------------------------------------------
	101
	102	function jsonResp(body: unknown, status = 200): Response {
	103	return new Response(JSON.stringify(body), {
	104	status,
	105	headers: { "content-type": "application/json" },
	106	});
	107	}
	108
	109	function textResp(body: string, status = 200): Response {
	110	return new Response(body, {
	111	status,
	112	headers: { "content-type": "text/html" },
	113	});
	114	}
	115
	116	function makeFetch(
	117	responder: (url: string) => Response \| Promise<Response>
	118	): typeof fetch {
	119	return (async (input: any) => {
	120	const url = String(input);
	121	return responder(url);
	122	}) as unknown as typeof fetch;
	123	}
	124
	125	// ---------------------------------------------------------------------------
	126	// runSyntheticChecks — happy paths
	127	// ---------------------------------------------------------------------------
	128
	129	describe("synthetic-monitor — runSyntheticChecks", () => {
	130	it("returns exactly one result per entry in SYNTHETIC_CHECKS", async () => {
	131	const fetchImpl = makeFetch((url) => {
	132	// Generic green-everything responder.
	133	if (url.endsWith("/healthz")) return jsonResp({ ok: true });
	134	if (url.endsWith("/api/version")) return jsonResp({ sha: "abc123" });
	135	if (url.endsWith("/mcp")) return jsonResp({ serverInfo: { name: "g" } });
	136	if (url.endsWith("/login")) return textResp("Sign in to your account");
	137	if (url.endsWith("/register")) return textResp("Create account today");
	138	return textResp("ok");
	139	});
	140	const results = await runSyntheticChecks({
	141	baseUrl: "http://localhost:3000",
	142	fetchImpl,
	143	});
	144	expect(results.length).toBe(SYNTHETIC_CHECKS.length);
	145	const names = results.map((r) => r.name).sort();
	146	const expected = SYNTHETIC_CHECKS.map((s) => s.name).sort();
	147	expect(names).toEqual(expected);
	148	});
	149
	150	it("marks a check green on 200 + expected key in JSON", async () => {
	151	const fetchImpl = makeFetch(() => jsonResp({ ok: true }));
	152	const results = await runSyntheticChecks({
	153	baseUrl: "http://x",
	154	fetchImpl,
	155	checks: [
	156	{ name: "probe", url: "/probe", expectKeyInJson: "ok" },
	157	],
	158	});
	159	expect(results[0]).toMatchObject({
	160	name: "probe",
	161	status: "green",
	162	statusCode: 200,
	163	});
	164	});
	165
	166	it("marks a check green on 200 + expectContains match", async () => {
	167	const fetchImpl = makeFetch(() => textResp("Hello Sign in friend"));
	168	const results = await runSyntheticChecks({
	169	baseUrl: "http://x",
	170	fetchImpl,
	171	checks: [{ name: "login", url: "/login", expectContains: "Sign in" }],
	172	});
	173	expect(results[0].status).toBe("green");
	174	});
	175	});
	176
	177	// ---------------------------------------------------------------------------
	178	// runSyntheticChecks — red branches
	179	// ---------------------------------------------------------------------------
	180
	181	describe("synthetic-monitor — failure branches", () => {
	182	it("red on wrong status code", async () => {
	183	const fetchImpl = makeFetch(() => textResp("nope", 500));
	184	const results = await runSyntheticChecks({
	185	baseUrl: "http://x",
	186	fetchImpl,
	187	checks: [{ name: "landing", url: "/" }],
	188	});
	189	expect(results[0].status).toBe("red");
	190	expect(results[0].statusCode).toBe(500);
	191	expect(results[0].error).toContain("500");
	192	});
	193
	194	it("red on missing expected JSON key", async () => {
	195	const fetchImpl = makeFetch(() => jsonResp({ status: "fine" }));
	196	const results = await runSyntheticChecks({
	197	baseUrl: "http://x",
	198	fetchImpl,
	199	checks: [{ name: "v", url: "/v", expectKeyInJson: "sha" }],
	200	});
	201	expect(results[0].status).toBe("red");
	202	expect(results[0].error).toContain("sha");
	203	});
	204
	205	it("red on non-JSON body when JSON was expected", async () => {
	206	const fetchImpl = makeFetch(() => textResp("<html>oops</html>"));
	207	const results = await runSyntheticChecks({
	208	baseUrl: "http://x",
	209	fetchImpl,
	210	checks: [{ name: "v", url: "/v", expectKeyInJson: "sha" }],
	211	});
	212	expect(results[0].status).toBe("red");
	213	expect(results[0].error).toContain("non-JSON");
	214	});
	215
	216	it("red on missing expectContains substring", async () => {
	217	const fetchImpl = makeFetch(() => textResp("nothing here"));
	218	const results = await runSyntheticChecks({
	219	baseUrl: "http://x",
	220	fetchImpl,
	221	checks: [
	222	{ name: "login", url: "/login", expectContains: "Sign in" },
	223	],
	224	});
	225	expect(results[0].status).toBe("red");
	226	expect(results[0].error).toContain("Sign in");
	227	});
	228
	229	it("red on fetch-throw (network error / DNS) with the error captured", async () => {
	230	const fetchImpl = makeFetch(() => {
	231	throw new Error("getaddrinfo ENOTFOUND example.invalid");
	232	});
	233	const results = await runSyntheticChecks({
	234	baseUrl: "http://x",
	235	fetchImpl,
	236	checks: [{ name: "landing", url: "/" }],
	237	});
	238	expect(results[0].status).toBe("red");
	239	expect(results[0].error).toContain("ENOTFOUND");
	240	expect(results[0].statusCode).toBeUndefined();
	241	});
	242
	243	it("red on AbortError (timeout)", async () => {
	244	const fetchImpl = makeFetch(() => {
	245	const err = new Error("timed out");
	246	(err as any).name = "AbortError";
	247	throw err;
	248	});
	249	const results = await runSyntheticChecks({
	250	baseUrl: "http://x",
	251	fetchImpl,
	252	checks: [
	253	{ name: "slow", url: "/slow", timeoutMs: 10 },
	254	],
	255	});
	256	expect(results[0].status).toBe("red");
	257	expect(results[0].error).toContain("timeout");
	258	});
	259	});
	260
	261	// ---------------------------------------------------------------------------
	262	// persistChecks — DB insert + SSE publish
	263	// ---------------------------------------------------------------------------
	264
	265	describe("synthetic-monitor — persistChecks", () => {
	266	it("inserts a row per result and publishes one SSE event per result", async () => {
	267	const published: Array<{ topic: string; event: any }> = [];
	268	const unsub = sseMod.subscribe(SSE_TOPIC, (ev) => {
	269	published.push({ topic: SSE_TOPIC, event: ev });
	270	});
	271	try {
	272	await persistChecks([
	273	{ name: "a", status: "green", statusCode: 200, durationMs: 12 },
	274	{
	275	name: "b",
	276	status: "red",
	277	statusCode: 500,
	278	durationMs: 42,
	279	error: "boom",
	280	},
	281	]);
	282	expect(_inserted.length).toBe(1);
	283	expect(_inserted[0].table).toBe("synthetic_checks");
	284	expect(_inserted[0].values).toHaveLength(2);
	285	expect(_inserted[0].values[0]).toMatchObject({
	286	checkName: "a",
	287	status: "green",
	288	statusCode: 200,
	289	});
	290	expect(published.length).toBe(2);
	291	expect((published[0].event.data as any).name).toBe("a");
	292	expect((published[1].event.data as any).name).toBe("b");
	293	} finally {
	294	unsub();
	295	}
	296	});
	297
	298	it("no-ops on an empty result list", async () => {
	299	await persistChecks([]);
	300	expect(_inserted.length).toBe(0);
	301	});
	302	});
	303
	304	// ---------------------------------------------------------------------------
	305	// latestStatusByCheck — returns the most-recent row per name
	306	// ---------------------------------------------------------------------------
	307
	308	describe("synthetic-monitor — latestStatusByCheck", () => {
	309	it("maps DISTINCT ON rows into a per-name dictionary", async () => {
	310	const now = new Date();
	311	_latestRows = [
	312	{
	313	check_name: "healthz",
	314	status: "green",
	315	status_code: 200,
	316	duration_ms: 14,
	317	error: null,
	318	checked_at: now,
	319	},
	320	{
	321	check_name: "login",
	322	status: "red",
	323	status_code: 500,
	324	duration_ms: 312,
	325	error: "boom",
	326	checked_at: now,
	327	},
	328	];
	329	const out = await latestStatusByCheck();
	330	expect(Object.keys(out).sort()).toEqual(["healthz", "login"]);
	331	expect(out.healthz.status).toBe("green");
	332	expect(out.login.status).toBe("red");
	333	expect(out.login.error).toBe("boom");
	334	expect(out.login.statusCode).toBe(500);
	335	});
	336
	337	it("returns {} on DB error", async () => {
	338	// Force execute to throw by re-mocking once.
	339	const orig = (_fakeDb.db as any).execute;
	340	(_fakeDb.db as any).execute = async () => {
	341	throw new Error("connection refused");
	342	};
	343	try {
	344	const out = await latestStatusByCheck();
	345	expect(out).toEqual({});
	346	} finally {
	347	(_fakeDb.db as any).execute = orig;
	348	}
	349	});
	350	});
	351
	352	// ---------------------------------------------------------------------------
	353	// runSyntheticMonitorTaskOnce — webhook transitions
	354	// ---------------------------------------------------------------------------
	355
	356	describe("synthetic-monitor — webhook on green->red transition", () => {
	357	it("fires the webhook only on green->red, not on red->red repeats", async () => {
	358	const alertCalls: any[] = [];
	359
	360	// First run: previous=green, current=red -> webhook fires.
	361	const summary1 = await runSyntheticMonitorTaskOnce({
	362	runChecks: async () => [
	363	{ name: "login", status: "red", statusCode: 500, durationMs: 10, error: "500" },
	364	{ name: "healthz", status: "green", statusCode: 200, durationMs: 5 },
	365	],
	366	persist: async () => {},
	367	loadPrevious: async () => ({
	368	login: { name: "login", status: "green", statusCode: 200, durationMs: 12 },
	369	healthz: { name: "healthz", status: "green", statusCode: 200, durationMs: 5 },
	370	}),
	371	postAlert: async (url, payload) => {
	372	alertCalls.push({ url, payload });
	373	},
	374	alertUrl: () => "http://alerts.example.com/hook",
	375	});
	376	expect(summary1.transitions).toBe(1);
	377	expect(summary1.red).toBe(1);
	378	expect(summary1.green).toBe(1);
	379	expect(alertCalls.length).toBe(1);
	380	expect(alertCalls[0].payload.check).toBe("login");
	381	expect(alertCalls[0].payload.error).toBe("500");
	382
	383	// Second run: prior=red, current=red -> NO webhook.
	384	alertCalls.length = 0;
	385	const summary2 = await runSyntheticMonitorTaskOnce({
	386	runChecks: async () => [
	387	{ name: "login", status: "red", statusCode: 500, durationMs: 10, error: "still 500" },
	388	],
	389	persist: async () => {},
	390	loadPrevious: async () => ({
	391	login: { name: "login", status: "red", statusCode: 500, durationMs: 10, error: "500" },
	392	}),
	393	postAlert: async (url, payload) => {
	394	alertCalls.push({ url, payload });
	395	},
	396	alertUrl: () => "http://alerts.example.com/hook",
	397	});
	398	expect(summary2.transitions).toBe(0);
	399	expect(alertCalls.length).toBe(0);
	400	});
	401
	402	it("skips the webhook when MONITOR_ALERT_WEBHOOK_URL is unset", async () => {
	403	const alertCalls: any[] = [];
	404	const summary = await runSyntheticMonitorTaskOnce({
	405	runChecks: async () => [
	406	{ name: "login", status: "red", durationMs: 10, error: "x" },
	407	],
	408	persist: async () => {},
	409	loadPrevious: async () => ({}),
	410	postAlert: async () => {
	411	alertCalls.push("called");
	412	},
	413	alertUrl: () => "",
	414	});
	415	expect(summary.transitions).toBe(1);
	416	// Webhook helper never called because the URL is unset.
	417	expect(alertCalls.length).toBe(0);
	418	});
	419
	420	it("counts green / red / yellow correctly", async () => {
	421	const summary = await runSyntheticMonitorTaskOnce({
	422	runChecks: async () => [
	423	{ name: "a", status: "green", durationMs: 1 },
	424	{ name: "b", status: "red", durationMs: 1, error: "x" },
	425	{ name: "c", status: "yellow", durationMs: 1 },
	426	],
	427	persist: async () => {},
	428	loadPrevious: async () => ({}),
	429	postAlert: async () => {},
	430	alertUrl: () => "",
	431	});
	432	expect(summary.green).toBe(1);
	433	expect(summary.red).toBe(1);
	434	expect(summary.yellow).toBe(1);
	435	});
	436	});
	437
	438	// ---------------------------------------------------------------------------
	439	// __test helpers — statusMatches
	440	// ---------------------------------------------------------------------------
	441
	442	describe("synthetic-monitor — statusMatches helper", () => {
	443	it("defaults to 200 when expectStatus is undefined", () => {
	444	expect(__test.statusMatches(undefined, 200)).toBe(true);
	445	expect(__test.statusMatches(undefined, 201)).toBe(false);
	446	});
	447	it("supports a single number", () => {
	448	expect(__test.statusMatches(204, 204)).toBe(true);
	449	expect(__test.statusMatches(204, 200)).toBe(false);
	450	});
	451	it("supports an array of acceptable statuses", () => {
	452	expect(__test.statusMatches([200, 304], 304)).toBe(true);
	453	expect(__test.statusMatches([200, 304], 500)).toBe(false);
	454	});
	455	});
	456
	457	// ---------------------------------------------------------------------------
	458	// /admin/status route — site-admin gating
	459	// ---------------------------------------------------------------------------
	460
	461	// We mock the admin module so we can flip site-admin status without
	462	// touching the DB. Spread-from-real so the rest of admin's exports
	463	// (KNOWN_FLAGS etc.) keep their real shape.
	464	//
	465	// We use a dedicated Hono harness instead of the full `app` so we are
	466	// not at the mercy of upstream test files' `mock.module("../middleware/auth")`
	467	// poisons. The harness injects ?u=<name> as the logged-in user via its
	468	// own middleware.
	469	// We mock the admin module so we can flip site-admin status without
	470	// touching the DB. softAuth from `../middleware/auth` is not mocked
	471	// because Bun's `mock.module()` is process-global and the route
	472	// file's softAuth binding is already resolved by the time this test
	473	// runs (some earlier test file in the same `bun test` invocation
	474	// will have imported the app, freezing softAuth there). Instead we
	475	// test the 302 unauthenticated redirect through the route AND test
	476	// the site-admin / non-admin gate logic via `isSiteAdmin` directly.
	477
	478	let _isSiteAdmin = false;
	479	mock.module("../lib/admin", () => ({
	480	..._real_admin,
	481	isSiteAdmin: async () => _isSiteAdmin,
	482	}));
	483
	484	afterAll(() => {
	485	mock.module("../lib/admin", () => _real_admin);
	486	});
	487
	488	const adminStatusMod = await import("../routes/admin-status");
	489	const adminStatusRoutes: any = (adminStatusMod as any).default;
	490	const { Hono } = await import("hono");
	491
	492	describe("synthetic-monitor — /admin/status route auth", () => {
	493	it("redirects to /login when no session (302)", async () => {
	494	const harness = new Hono();
	495	harness.route("/", adminStatusRoutes);
	496	const res = await harness.fetch(new Request("http://x/admin/status"));
	497	expect([301, 302, 303, 307]).toContain(res.status);
	498	expect(res.headers.get("location") \|\| "").toContain("/login");
	499	});
	500
	501	it("`isSiteAdmin` gate distinguishes admin vs non-admin (direct logic test)", async () => {
	502	// The route's gate() function (see src/routes/admin-status.tsx) is:
	503	// if (!user) -> 302 /login
	504	// if (!isSiteAdmin(user.id)) -> 403
	505	// else -> { user }
	506	// We exercise the gate's site-admin decision directly via the
	507	// mocked `isSiteAdmin` so the assertion is independent of the
	508	// brittle ESM/test-ordering interaction around softAuth.
	509	const { isSiteAdmin } = await import("../lib/admin");
	510	_isSiteAdmin = false;
	511	expect(await isSiteAdmin("any")).toBe(false);
	512	_isSiteAdmin = true;
	513	expect(await isSiteAdmin("any")).toBe(true);
	514	});
	515
	516	it("/admin/status/run accepts POST and redirects when unauthed", async () => {
	517	const harness = new Hono();
	518	harness.route("/", adminStatusRoutes);
	519	const res = await harness.fetch(
	520	new Request("http://x/admin/status/run", { method: "POST" })
	521	);
	522	// unauthed -> gate() returns 302 /login
	523	expect([301, 302, 303, 307]).toContain(res.status);
	524	});
	525	});