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1	// Tests for the passkey-backup banner visibility rule. node test/backup.test.mjs
2	import assert from "node:assert/strict";
3	import { autoRestoreRequested, backupBannerState, parseReturnNonce, parseRestoreReturn, REMIND_RUNGS_MS } from "../web/static/backup.js";
4
5	let failures = 0;
6	async function test(name, fn) {
7	try {
8	await fn();
9	console.log("PASS " + name);
10	} catch (e) {
11	console.log("FAIL " + name + " — " + (e && e.message));
12	failures++;
13	}
14	}
15
16	const DAY = 24 * 60 * 60 * 1000;
17	const now = 1_700_000_000_000; // a fixed "now" so snooze comparisons are deterministic
18
19	await test("home space links request automatic restore by exact marker", () => {
20	assert.equal(autoRestoreRequested("?restore=1"), true);
21	assert.equal(autoRestoreRequested("?thread=7&restore=1"), true);
22	assert.equal(autoRestoreRequested("?restore=0"), false);
23	assert.equal(autoRestoreRequested("?restored=1"), false);
24	});
25
26	await test("not enrolled + not snoozed → show", () => {
27	assert.equal(backupBannerState({ enrolled: false, dismissed: false, snoozedUntil: 0, now }), "show");
28	});
29
30	await test("enrolled → hidden", () => {
31	assert.equal(backupBannerState({ enrolled: true, dismissed: false, snoozedUntil: 0, now }), "hidden");
32	});
33
34	await test("snoozed in the future → hidden", () => {
35	assert.equal(backupBannerState({ enrolled: false, dismissed: false, snoozedUntil: now + 7 * DAY, now }), "hidden");
36	});
37
38	await test("snooze expired → show", () => {
39	assert.equal(backupBannerState({ enrolled: false, dismissed: false, snoozedUntil: now - DAY, now }), "show");
40	});
41
42	await test("permanently dismissed → hidden", () => {
43	assert.equal(backupBannerState({ enrolled: false, dismissed: true, snoozedUntil: 0, now }), "hidden");
44	});
45
46	await test("enrolled wins even if the snooze has expired", () => {
47	assert.equal(backupBannerState({ enrolled: true, dismissed: false, snoozedUntil: now - DAY, now }), "hidden");
48	});
49
50	// The deferral schedule: a setup-time skip keeps the banner quiet until each
51	// escalating rung (24h → 72h → 1w) is due; past the rungs, classic rules apply.
52	await test("setup skip: quiet before the 24h rung, shows once due", () => {
53	const base = { enrolled: false, dismissed: false, snoozedUntil: 0, deferredAt: now, remindStage: 0 };
54	assert.equal(backupBannerState({ ...base, now: now + DAY - 1 }), "hidden");
55	assert.equal(backupBannerState({ ...base, now: now + DAY }), "show");
56	});
57
58	await test("setup skip: each dismissal advances to the next rung", () => {
59	const base = { enrolled: false, dismissed: false, snoozedUntil: 0, deferredAt: now };
60	assert.equal(backupBannerState({ ...base, remindStage: 1, now: now + DAY + 1 }), "hidden", "72h rung not yet due");
61	assert.equal(backupBannerState({ ...base, remindStage: 1, now: now + 3 * DAY }), "show");
62	assert.equal(backupBannerState({ ...base, remindStage: 2, now: now + 6 * DAY }), "hidden", "final rung not yet due");
63	assert.equal(backupBannerState({ ...base, remindStage: 2, now: now + 7 * DAY }), "show");
64	});
65
66	await test("setup skip: past the final rung the classic snooze rule owns it", () => {
67	const base = { enrolled: false, dismissed: false, deferredAt: now, remindStage: REMIND_RUNGS_MS.length };
68	assert.equal(backupBannerState({ ...base, snoozedUntil: now + 30 * DAY, now: now + 8 * DAY }), "hidden");
69	assert.equal(backupBannerState({ ...base, snoozedUntil: 0, now: now + 8 * DAY }), "show");
70	});
71
72	await test("setup skip: enrolment or opt-out silences the schedule", () => {
73	const due = now + 2 * DAY;
74	assert.equal(backupBannerState({ enrolled: true, dismissed: false, snoozedUntil: 0, deferredAt: now, remindStage: 0, now: due }), "hidden");
75	assert.equal(backupBannerState({ enrolled: false, dismissed: true, snoozedUntil: 0, deferredAt: now, remindStage: 0, now: due }), "hidden");
76	});
77
78	// parseReturnNonce: pull our one-time nonce out of the /enroll return fragment.
79	await test("return nonce parses from a lone marker", () => {
80	assert.equal(parseReturnNonce("#lchat_backup=abc123"), "abc123");
81	});
82	await test("return nonce is URL-decoded", () => {
83	assert.equal(parseReturnNonce("#lchat_backup=a%2Fb%2Bc"), "a/b+c");
84	});
85	await test("return nonce parses when not first in the fragment", () => {
86	assert.equal(parseReturnNonce("#foo=1&lchat_backup=xyz"), "xyz");
87	});
88	await test("no marker → empty", () => {
89	assert.equal(parseReturnNonce("#something-else"), "");
90	assert.equal(parseReturnNonce(""), "");
91	assert.equal(parseReturnNonce("#lchat_backupZZZ=nope"), "");
92	});
93
94	// parseRestoreReturn: pull { nonce, wrapped } out of the /restore return fragment.
95	function b64url(s) {
96	return Buffer.from(s, "utf8").toString("base64").replace(/\+/g, "-").replace(/\//g, "_").replace(/=+$/, "");
97	}
98	await test("restore return parses nonce + wrapped", () => {
99	const h = "#lchat_restore=" + b64url(JSON.stringify({ nonce: "n1", wrapped: "w1" }));
100	assert.deepEqual(parseRestoreReturn(h), { nonce: "n1", wrapped: "w1" });
101	});
102	await test("restore return: no marker → null", () => {
103	assert.equal(parseRestoreReturn("#something"), null);
104	assert.equal(parseRestoreReturn(""), null);
105	});
106	await test("restore return: malformed base64 → null", () => {
107	assert.equal(parseRestoreReturn("#lchat_restore=%%%"), null);
108	});
109	await test("restore return: valid base64 but missing fields → null", () => {
110	assert.equal(parseRestoreReturn("#lchat_restore=" + b64url(JSON.stringify({ nonce: "n" }))), null);
111	});
112
113	console.log(failures === 0 ? "\nALL PASSED" : `\n${failures} FAILED`);
114	process.exit(failures === 0 ? 0 : 1);
115