Zakhar Timoshenko
1492f179eb
- Implemented SCSS styles for compact board in departures. - Created styles for feature discovery modal and its elements. - Added navigation styles for desktop and mobile views. - Developed FeatureDiscovery component with guided steps for user onboarding. - Introduced freshness utility to manage data freshness based on timestamps. - Added tests for freshness utility to ensure correct behavior across various scenarios.
41 lines
2.4 KiB
JavaScript
41 lines
2.4 KiB
JavaScript
import { test } from 'node:test';
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import assert from 'node:assert/strict';
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import { snapshotFreshness } from '../src/lib/freshness.ts';
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const now = Date.parse('2026-10-07T17:51:00.000Z');
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const ago = minutes => new Date(now - minutes * 60_000).toISOString();
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const snapshot = (minutes, updatedMinutes = minutes) => ({ data: { updatedAt: ago(updatedMinutes) }, savedAt: ago(minutes), saved: true });
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test('a just saved response remains fresh when used from storage', () => {
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assert.deepEqual(snapshotFreshness(snapshot(1), 'departures', now), {
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checkedAt: ago(1), ageMs: 60_000, isOld: false,
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});
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assert.equal(snapshotFreshness({ ...snapshot(1), saved: false }, 'departures', now).isOld, false);
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});
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test('age warnings follow resource needs rather than network connectivity', () => {
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assert.equal(snapshotFreshness(snapshot(29.9), 'departures', now).isOld, false);
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assert.equal(snapshotFreshness(snapshot(30), 'departures', now).isOld, true);
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for (const resource of ['timetable', 'journey']) {
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assert.equal(snapshotFreshness(snapshot(1439), resource, now).isOld, false);
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assert.equal(snapshotFreshness(snapshot(1440), resource, now).isOld, true);
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}
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assert.equal(snapshotFreshness(snapshot(14), 'alerts', now).isOld, false);
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assert.equal(snapshotFreshness(snapshot(15), 'alerts', now).isOld, true);
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});
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test('resaving an old server response cannot reset its freshness', () => {
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assert.equal(snapshotFreshness(snapshot(0, 45), 'departures', now).isOld, true);
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assert.equal(snapshotFreshness(snapshot(45, 0), 'departures', now).isOld, true);
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assert.equal(snapshotFreshness({ data: [], savedAt: ago(16) }, 'alerts', now).isOld, true);
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});
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test('unavailable, legacy and clock-skewed timestamps are handled conservatively', () => {
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assert.deepEqual(snapshotFreshness(undefined, 'departures', now), { checkedAt: null, ageMs: null, isOld: false });
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assert.equal(snapshotFreshness({ data: { updatedAt: 'invalid' }, savedAt: ago(1) }, 'departures', now).isOld, false);
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assert.equal(snapshotFreshness({ data: { updatedAt: ago(45) }, savedAt: 'invalid' }, 'departures', now).isOld, true);
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assert.deepEqual(snapshotFreshness({ data: {}, savedAt: 'invalid' }, 'departures', now), { checkedAt: null, ageMs: null, isOld: true });
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assert.equal(snapshotFreshness(snapshot(-5), 'departures', now).ageMs, 0);
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assert.equal(snapshotFreshness(snapshot(-5, 45), 'departures', now).isOld, true);
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});
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