File size: 2,935 Bytes
1f21206 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | import { beforeEach, describe, expect, it } from 'vitest'
import {
APP_ZOOM_STORAGE_KEY,
LEGACY_UI_ZOOM_STORAGE_KEY,
applyAppZoomLevel,
getAppZoomKeyboardAction,
initializeAppZoom,
nextAppZoomLevel,
normalizeAppZoomLevel,
} from './appZoom'
describe('appZoom', () => {
beforeEach(() => {
window.localStorage.clear()
document.documentElement.removeAttribute('data-app-zoom-mode')
document.documentElement.removeAttribute('data-app-zoom-percent')
document.documentElement.style.removeProperty('--app-zoom')
document.body.style.removeProperty('zoom')
})
it('normalizes, clamps, and steps app zoom levels', () => {
expect(normalizeAppZoomLevel('1.25')).toBe(1.25)
expect(normalizeAppZoomLevel('bad')).toBe(1)
expect(normalizeAppZoomLevel(4)).toBe(2)
expect(normalizeAppZoomLevel(0.1)).toBe(0.5)
expect(nextAppZoomLevel(1, 'in')).toBe(1.1)
expect(nextAppZoomLevel(1, 'out')).toBe(0.9)
expect(nextAppZoomLevel(1.7, 'reset')).toBe(1)
})
it('applies browser fallback zoom and preserves valid persisted zoom', async () => {
window.localStorage.setItem(APP_ZOOM_STORAGE_KEY, '1.2')
await initializeAppZoom()
expect(document.documentElement.getAttribute('data-app-zoom-mode')).toBe('css')
expect(document.documentElement.getAttribute('data-app-zoom-percent')).toBe('120')
expect(document.documentElement.style.getPropertyValue('--app-zoom')).toBe('1.2')
expect(window.localStorage.getItem(APP_ZOOM_STORAGE_KEY)).toBe('1.2')
})
it('reads the legacy UI zoom key when the app zoom key is absent', async () => {
window.localStorage.setItem(LEGACY_UI_ZOOM_STORAGE_KEY, '1.25')
await initializeAppZoom()
expect(document.documentElement.getAttribute('data-app-zoom-percent')).toBe('125')
expect(window.localStorage.getItem(APP_ZOOM_STORAGE_KEY)).toBeNull()
})
it('persists app zoom changes', async () => {
await applyAppZoomLevel(1.3)
expect(window.localStorage.getItem(APP_ZOOM_STORAGE_KEY)).toBe('1.3')
expect(document.documentElement.style.getPropertyValue('--app-zoom')).toBe('1.3')
})
it('maps IDE-style zoom shortcuts by platform', () => {
expect(getAppZoomKeyboardAction({
altKey: false,
code: 'Equal',
ctrlKey: false,
key: '=',
metaKey: true,
} as KeyboardEvent, 'MacIntel')).toBe('in')
expect(getAppZoomKeyboardAction({
altKey: false,
code: 'Minus',
ctrlKey: true,
key: '-',
metaKey: false,
} as KeyboardEvent, 'Win32')).toBe('out')
expect(getAppZoomKeyboardAction({
altKey: false,
code: 'Numpad0',
ctrlKey: true,
key: '0',
metaKey: false,
} as KeyboardEvent, 'Linux x86_64')).toBe('reset')
expect(getAppZoomKeyboardAction({
altKey: true,
code: 'Equal',
ctrlKey: true,
key: '=',
metaKey: false,
} as KeyboardEvent, 'Win32')).toBeNull()
})
})
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