[verified] feat: add timer customization and themes

src/features/settings/settings.test.ts

@@ -0,0 +1,70 @@
+import { IDBFactory } from 'fake-indexeddb'
+import { describe, expect, it } from 'vitest'
+import {
+  DEFAULT_SETTINGS,
+  normalizeSettings,
+  settingsToDurations,
+  type AppSettings,
+} from './settings'
+import { IndexedDbSettingsStore } from './settings-store'
+
+describe('application settings', () => {
+  it('uses an overlay default aligned with the slider step', () => {
+    expect(DEFAULT_SETTINGS.overlayOpacity).toBe(0.2)
+  })
+
+  it('converts duration settings from minutes to milliseconds', () => {
+    expect(settingsToDurations({
+      ...DEFAULT_SETTINGS,
+      focusMinutes: 40,
+      shortBreakMinutes: 8,
+      longBreakMinutes: 25,
+    })).toEqual({
+      focus: 40 * 60_000,
+      shortBreak: 8 * 60_000,
+      longBreak: 25 * 60_000,
+    })
+  })
+
+  it('normalizes persisted values to safe supported settings', () => {
+    expect(normalizeSettings({
+      focusMinutes: 999,
+      shortBreakMinutes: 0,
+      longBreakMinutes: 20.8,
+      fontId: 'unknown',
+      backgroundId: 'missing',
+      overlayOpacity: 4,
+      textColor: '<script>',
+    })).toEqual({
+      ...DEFAULT_SETTINGS,
+      focusMinutes: 120,
+      shortBreakMinutes: 1,
+      longBreakMinutes: 21,
+      overlayOpacity: 0.8,
+    })
+  })
+})
+
+describe('IndexedDbSettingsStore', () => {
+  it('returns null before any settings have been saved', async () => {
+    const store = new IndexedDbSettingsStore(new IDBFactory(), 'empty-settings')
+
+    await expect(store.load()).resolves.toBeNull()
+  })
+
+  it('persists and restores settings', async () => {
+    const store = new IndexedDbSettingsStore(new IDBFactory(), 'saved-settings')
+    const settings: AppSettings = {
+      ...DEFAULT_SETTINGS,
+      focusMinutes: 45,
+      fontId: 'serif',
+      backgroundId: 'forest',
+      overlayOpacity: 0.35,
+      textColor: '#fff2d6',
+    }
+
+    await store.save(settings)
+
+    await expect(store.load()).resolves.toEqual(settings)
+  })
+})