test: add jest

src/__tests__/utils.test.ts

@@ -0,0 +1,16 @@
+import localeEN from '../i18n/locales/en'
+import localeZH from '../i18n/locales/zh'
+import { highlightJSON } from '../utils'
+
+test('highlightJSON', () => {
+  const str = JSON.stringify({ a: 1, b: '2' })
+  expect(highlightJSON(str)).toMatch('key')
+  expect(highlightJSON(str)).toMatch('number')
+  expect(highlightJSON(str)).toMatch('string')
+})
+
+test('check locales completeness', () => {
+  const zh = Reflect.ownKeys(localeZH).sort()
+  const en = Reflect.ownKeys(localeEN).sort()
+  expect(zh).toEqual(en)
+})

src/utils/constant.ts

@@ -97,7 +97,7 @@ export const NONE = 'none'
 
 export const TRIGGER_PROBABILITY = 0.1
 
-export const SPECIAL_AVATARS: Readonly<AvatarOption>[] = [
+export const SPECIAL_AVATARS: Readonly<AvatarOption[]> = [
   {
     wrapperShape: 'squircle',
     background: {

src/utils/index.ts

@@ -102,7 +102,7 @@ export function getRandomAvatarOption(
   return avatarOption
 }
 
-export function getSpecialAvatarOption() {
+export function getSpecialAvatarOption(): AvatarOption {
   return SPECIAL_AVATARS[Math.floor(Math.random() * SPECIAL_AVATARS.length)]
 }