wip - claude --resume 742969c2-ab50-4a79-b7bd-3971e9fd314d

.github/workflows/lint.yml

@@ -82,5 +82,4 @@ jobs:
       - name: Check & compile i18n
         run: pnpm intl:build
       - name: Run tests
-        run: |
+        run: pnpm test-ci
-          NODE_ENV=test pnpm test --forceExit

__mocks__/@gorhom/bottom-sheet.tsx

@@ -1,5 +1,6 @@
 import React, {type ReactNode} from 'react'
 import {FlatList, Modal, ScrollView, TextInput, View} from 'react-native'
+import {vi} from 'vitest'
 
 const BottomSheetModalContext = React.createContext(null)
 BottomSheetModalContext.displayName = 'BottomSheetModalContext'
@@ -33,12 +34,12 @@ const BottomSheetScrollView = (props: any) => <ScrollView {...props} />
 const BottomSheetFlatList = (props: any) => <FlatList {...props} />
 const BottomSheetTextInput = (props: any) => <TextInput {...props} />
 
-const useBottomSheet = jest.fn()
+const useBottomSheet = vi.fn()
-const useBottomSheetModal = jest.fn()
+const useBottomSheetModal = vi.fn()
-const useBottomSheetSpringConfigs = jest.fn()
+const useBottomSheetSpringConfigs = vi.fn()
-const useBottomSheetTimingConfigs = jest.fn()
+const useBottomSheetTimingConfigs = vi.fn()
-const useBottomSheetInternal = jest.fn()
+const useBottomSheetInternal = vi.fn()
-const useBottomSheetDynamicSnapPoints = jest.fn()
+const useBottomSheetDynamicSnapPoints = vi.fn()
 
 export {useBottomSheet}
 export {useBottomSheetModal}

__mocks__/expo-localization.js

@@ -1 +1,3 @@
-export const getLocales = jest.fn().mockResolvedValue([])
+import {vi} from 'vitest'
+
+export const getLocales = vi.fn().mockResolvedValue([])

__mocks__/multiformats/cid.js

@@ -1,3 +1,5 @@
-export const CID = jest.fn().mockImplementation(() => {
+import {vi} from 'vitest'
+
+export const CID = vi.fn().mockImplementation(() => {
   return {}
 })

__mocks__/multiformats/hashes/hasher.js

@@ -1,6 +1,8 @@
-export const from = jest.fn().mockImplementation(() => {
+import {vi} from 'vitest'
+
+export const from = vi.fn().mockImplementation(() => {
   return {
-    digest: jest.fn().mockImplementation(() => {
+    digest: vi.fn().mockImplementation(() => {
       return Promise.resolve('')
     }),
   }

__mocks__/sentry-expo.js

@@ -1,3 +1,5 @@
-jest.mock('sentry-expo', () => ({
+import {vi} from 'vitest'
-  init: () => jest.fn(),
+
+vi.mock('sentry-expo', () => ({
+  init: () => vi.fn(),
 }))

__tests__/lib/async/bundle.test.ts

@@ -1,3 +1,5 @@
+import {describe, expect, it} from 'vitest'
+
 import {bundleAsync} from '../../../src/lib/async/bundle'
 
 describe('bundle', () => {

__tests__/lib/email.test.ts

@@ -1,4 +1,4 @@
-import {describe, expect, it} from '@jest/globals'
+import {describe, expect, it} from 'vitest'
 import tldts from 'tldts'
 
 import {isEmailMaybeInvalid} from '#/lib/strings/email'

__tests__/lib/errors.test.ts

@@ -1,3 +1,5 @@
+import {describe, expect, it} from 'vitest'
+
 import {isNetworkError} from '../../src/lib/strings/errors'
 
 describe('isNetworkError', () => {

__tests__/lib/images.test.ts

@@ -1,5 +1,6 @@
 import {createDownloadResumable, deleteAsync} from 'expo-file-system/legacy'
 import {manipulateAsync, SaveFormat} from 'expo-image-manipulator'
+import {afterEach, beforeEach, describe, expect, it, type Mock, vi} from 'vitest'
 
 import {
   downloadAndResize,
@@ -16,10 +17,10 @@ const mockResizedImage = {
 }
 
 describe('downloadAndResize', () => {
-  const errorSpy = jest.spyOn(global.console, 'error')
+  const errorSpy = vi.spyOn(global.console, 'error')
 
   beforeEach(() => {
-    const mockedCreateResizedImage = manipulateAsync as jest.Mock
+    const mockedCreateResizedImage = manipulateAsync as Mock
     mockedCreateResizedImage.mockResolvedValue({
       uri: 'file://resized-image.jpg',
       ...mockResizedImage,
@@ -27,13 +28,13 @@ describe('downloadAndResize', () => {
   })
 
   afterEach(() => {
-    jest.clearAllMocks()
+    vi.clearAllMocks()
   })
 
   it('should return resized image for valid URI and options', async () => {
-    const mockedFetch = createDownloadResumable as jest.Mock
+    const mockedFetch = createDownloadResumable as Mock
     mockedFetch.mockReturnValue({
-      cancelAsync: jest.fn(),
+      cancelAsync: vi.fn(),
       downloadAsync: jest
         .fn()
         .mockResolvedValue({uri: 'file://resized-image.jpg'}),

__tests__/lib/link-meta.test.ts

@@ -1,3 +1,5 @@
+import {describe, expect, it} from 'vitest'
+
 import {getLikelyType, LikelyType} from '../../src/lib/link-meta/link-meta'
 
 describe('getLikelyType', () => {

__tests__/lib/numbers.test.ts

@@ -1,3 +1,5 @@
+import {describe, expect, it} from 'vitest'
+
 import {clamp} from '../../src/lib/numbers'
 
 describe('clamp', () => {

__tests__/lib/string.test.ts

@@ -1,5 +1,6 @@
 import {RichText} from '@atproto/api'
 import {i18n} from '@lingui/core'
+import {describe, expect, it} from 'vitest'
 
 import {parseEmbedPlayerFromUrl} from '#/lib/strings/embed-player'
 import {

__tests__/lib/strings/handles.test.ts

@@ -1,3 +1,5 @@
+import {describe, expect, it} from 'vitest'
+
 import {type IsValidHandle, validateServiceHandle} from '#/lib/strings/handles'
 
 describe('handle validation', () => {

__tests__/lib/strings/mention-manip.test.ts

@@ -1,3 +1,5 @@
+import {describe, expect, it} from 'vitest'
+
 import {
   getMentionAt,
   insertMentionAt,

__tests__/lib/strings/url-helpers.test.ts

@@ -1,4 +1,4 @@
-import {describe, expect, it} from '@jest/globals'
+import {describe, expect, it} from 'vitest'
 
 import {
   isPossiblyAUrl,

babel.config.js

@@ -1,6 +1,5 @@
 module.exports = function (api) {
   api.cache(true)
-  const isTestEnv = process.env.NODE_ENV === 'test'
   return {
     presets: [
       [
@@ -9,8 +8,7 @@ module.exports = function (api) {
           lazyImports: true,
           native: {
             // Disable ESM -> CJS compilation because Metro takes care of it.
-            // However, we need it in Jest tests since those run without Metro.
+            disableImportExportTransform: true,
-            disableImportExportTransform: !isTestEnv,
           },
         },
       ],

eslint/__tests__/avoid-unwrapped-text.test.js

@@ -1,6 +1,12 @@
-const {RuleTester} = require('eslint')
+import {RuleTester} from 'eslint'
-const tseslint = require('typescript-eslint')
+import tseslint from 'typescript-eslint'
-const avoidUnwrappedText = require('../avoid-unwrapped-text')
+import {describe, it} from 'vitest'
+
+import avoidUnwrappedText from '../avoid-unwrapped-text.js'
+
+RuleTester.describe = describe
+RuleTester.it = it
+RuleTester.itOnly = it.only
 
 const ruleTester = new RuleTester({
   languageOptions: {

eslint/__tests__/lingui-msg-rule.test.js

@@ -1,6 +1,12 @@
-const {RuleTester} = require('eslint')
+import {RuleTester} from 'eslint'
-const tseslint = require('typescript-eslint')
+import tseslint from 'typescript-eslint'
-const linguiMsgRule = require('../lingui-msg-rule')
+import {describe, it} from 'vitest'
+
+import linguiMsgRule from '../lingui-msg-rule.js'
+
+RuleTester.describe = describe
+RuleTester.it = it
+RuleTester.itOnly = it.only
 
 const ruleTester = new RuleTester({
   languageOptions: {

jest/jestSetup.js

@@ -1,112 +0,0 @@
-/* global jest */
-import 'react-native-gesture-handler/jestSetup'
-
-import {configure} from '@testing-library/react-native'
-
-configure({asyncUtilTimeout: 20000})
-
-jest.mock('@react-native-async-storage/async-storage', () =>
-  require('@react-native-async-storage/async-storage/jest/async-storage-mock'),
-)
-jest.mock('react-native/Libraries/EventEmitter/NativeEventEmitter', () => {
-  // eslint-disable-next-line import-x/no-nodejs-modules
-  const {EventEmitter} = require('events')
-  return {
-    __esModule: true,
-    default: EventEmitter,
-  }
-})
-
-jest.mock('@fortawesome/react-native-fontawesome', () => ({
-  FontAwesomeIcon: '',
-}))
-
-jest.mock('react-native-safe-area-context', () => {
-  const inset = {top: 0, right: 0, bottom: 0, left: 0}
-  return {
-    SafeAreaProvider: jest.fn().mockImplementation(({children}) => children),
-    SafeAreaConsumer: jest
-      .fn()
-      .mockImplementation(({children}) => children(inset)),
-    useSafeAreaInsets: jest.fn().mockImplementation(() => inset),
-  }
-})
-
-jest.mock('expo-file-system/legacy', () => ({
-  getInfoAsync: jest.fn().mockResolvedValue({exists: true, size: 100}),
-  deleteAsync: jest.fn(),
-  moveAsync: jest.fn().mockResolvedValue(undefined),
-  createDownloadResumable: jest.fn(),
-}))
-
-jest.mock('expo-image-manipulator', () => ({
-  manipulateAsync: jest.fn().mockResolvedValue({
-    uri: 'file://resized-image',
-  }),
-  SaveFormat: {
-    JPEG: 'jpeg',
-    WEBP: 'webp',
-  },
-}))
-
-jest.mock('expo-camera', () => ({
-  Camera: {
-    useCameraPermissions: jest.fn(() => [true]),
-  },
-}))
-
-jest.mock('expo-media-library', () => ({
-  __esModule: true, // this property makes it work
-  default: jest.fn(),
-  usePermissions: jest.fn(() => [true]),
-}))
-
-jest.mock('@bsky.app/expo-guess-language', () => ({
-  guessLanguageSync: jest
-    .fn()
-    .mockReturnValue([{language: 'en', confidence: 1}]),
-  guessLanguageAsync: jest
-    .fn()
-    .mockResolvedValue([{language: 'en', confidence: 1}]),
-}))
-
-jest.mock('sentry-expo', () => ({
-  init: () => jest.fn(),
-  Native: {
-    ReactNativeTracing: jest.fn().mockImplementation(() => ({
-      start: jest.fn(),
-      stop: jest.fn(),
-    })),
-    ReactNavigationInstrumentation: jest.fn(),
-  },
-}))
-
-jest.mock('crypto', () => ({}))
-
-jest.mock('expo-application', () => ({
-  nativeApplicationVersion: '1.0.0',
-  nativeBuildVersion: '1',
-}))
-
-jest.mock('expo-modules-core', () => ({
-  requireNativeModule: jest.fn().mockImplementation(moduleName => {
-    if (moduleName === 'ExpoPlatformInfo') {
-      return {
-        getIsReducedMotionEnabled: () => false,
-      }
-    }
-    if (moduleName === 'BottomSheet') {
-      return {
-        dismissAll: () => {},
-      }
-    }
-  }),
-  requireNativeViewManager: jest.fn().mockImplementation(_ => {
-    return () => null
-  }),
-  createPermissionHook: () => () => [true],
-}))
-
-jest.mock('expo-localization', () => ({
-  getLocales: () => [],
-}))

package.json

@@ -44,10 +44,10 @@
     "build-embed": "cd bskyembed && yarn build && yarn build-snippet && cd .. && node ./scripts/post-embed-build.js",
     "start": "expo start --dev-client",
     "start:prod": "expo start --dev-client --no-dev --minify",
-    "test": "NODE_ENV=test jest --forceExit --testTimeout=20000 --bail",
+    "test": "NODE_ENV=test vitest run --bail=1",
-    "test-watch": "NODE_ENV=test jest --watchAll",
+    "test-watch": "NODE_ENV=test vitest",
-    "test-ci": "NODE_ENV=test jest --ci --forceExit --reporters=default --reporters=jest-junit",
+    "test-ci": "NODE_ENV=test vitest run --reporter=default --reporter=junit --outputFile.junit=./junit.xml",
-    "test-coverage": "NODE_ENV=test jest --coverage",
+    "test-coverage": "NODE_ENV=test vitest run --coverage",
     "lint": "eslint --cache --quiet src",
     "lint-native": "swiftlint ./modules && ktlint ./modules",
     "lint-native:fix": "swiftlint --fix ./modules && ktlint --format ./modules",
@@ -226,7 +226,7 @@
     "react-native-uitextview": "^1.4.0",
     "react-native-uuid": "^2.0.3",
     "react-native-view-shot": "^4.0.3",
-    "react-native-web": "^0.21.0",
+    "react-native-web": "^0.21.2",
     "react-native-web-webview": "^1.0.2",
     "react-native-webview": "^13.15.0",
     "react-remove-scroll-bar": "^2.3.8",
@@ -250,12 +250,11 @@
     "@eslint/js": "^9.39.2",
     "@lingui/babel-plugin-lingui-macro": "^5.9.2",
     "@lingui/cli": "^5.9.2",
+    "@lingui/vite-plugin": "^6.0.1",
     "@pmmmwh/react-refresh-webpack-plugin": "^0.5.15",
     "@react-native/babel-preset": "0.81.5",
     "@react-native/typescript-config": "^0.81.5",
     "@sentry/webpack-plugin": "^3.2.2",
-    "@testing-library/react-native": "^13.2.0",
-    "@types/jest": "29.5.14",
     "@types/lodash.chunk": "^4.2.7",
     "@types/lodash.debounce": "^4.0.7",
     "@types/lodash.shuffle": "^4.2.7",
@@ -263,7 +262,7 @@
     "@types/react": "^19.1.17",
     "@types/react-dom": "^19.1.11",
     "@typescript/native-preview": "^7.0.0-dev.20260428.1",
-    "babel-jest": "^29.7.0",
+    "@vitest/coverage-v8": "^4.0.0",
     "babel-plugin-module-resolver": "^5.0.2",
     "babel-plugin-react-compiler": "19.1.0-rc.3",
     "babel-preset-expo": "~54.0.10",
@@ -282,9 +281,6 @@
     "globals": "^17.0.0",
     "husky": "^8.0.3",
     "is-ci": "^3.0.1",
-    "jest": "^29.7.0",
-    "jest-expo": "~54.0.17",
-    "jest-junit": "^16.0.0",
     "lint-staged": "^13.2.3",
     "prettier": "^3.8.3",
     "react-native-dotenv": "^3.4.11",
@@ -293,45 +289,9 @@
     "ts-plugin-sort-import-suggestions": "^1.0.4",
     "typescript": "^6.0.2",
     "typescript-eslint": "^8.58.0",
+    "vitest": "^4.0.0",
     "webpack-bundle-analyzer": "^4.10.1"
   },
-  "jest": {
-    "preset": "jest-expo/ios",
-    "setupFilesAfterEnv": [
-      "./jest/jestSetup.js"
-    ],
-    "moduleFileExtensions": [
-      "ts",
-      "tsx",
-      "js",
-      "jsx",
-      "json",
-      "node"
-    ],
-    "transform": {
-      "\\.[jt]sx?$": "babel-jest"
-    },
-    "transformIgnorePatterns": [
-      "node_modules/(?!((jest-)?react-native|@react-native(-community)?)|@discord|expo(nent)?|@expo(nent)?/.*|@expo-google-fonts/.*|react-navigation|nanoid|@react-navigation/.*|@unimodules/.*|unimodules|sentry-expo|native-base|normalize-url|react-native-svg|@sentry/.*|sentry-expo|bcp-47-match)"
-    ],
-    "modulePathIgnorePatterns": [
-      "__tests__/.*/__mocks__",
-      "__e2e__/.*",
-      "bskylink/.*"
-    ],
-    "coveragePathIgnorePatterns": [
-      "<rootDir>/node_modules/",
-      "<rootDir>/src/platform",
-      "<rootDir>/src/third-party",
-      "<rootDir>/src/view/com/util",
-      "<rootDir>/src/state/lib",
-      "<rootDir>/__tests__/test-utils.js"
-    ],
-    "reporters": [
-      "default",
-      "jest-junit"
-    ]
-  },
   "browserslist": {
     "production": [
       ">0.2%",

src/alf/util/__tests__/colors.test.ts

@@ -1,10 +1,10 @@
-import {jest} from '@jest/globals'
+import {beforeEach, describe, expect, it, vi} from 'vitest'
 
 import {transparentifyColor} from '../colorGeneration'
 
 describe('transparentifyColor', () => {
   beforeEach(() => {
-    jest.clearAllMocks()
+    vi.clearAllMocks()
   })
 
   it('converts hsl() to hsla()', () => {

src/analytics/identifiers/session.test.ts

@@ -1,39 +1,41 @@
-jest.mock('#/storage', () => ({
+import {beforeEach, describe, expect, it, vi} from 'vitest'
+
+vi.mock('#/storage', () => ({
   device: {
-    get: jest.fn(),
+    get: vi.fn(),
-    set: jest.fn(),
+    set: vi.fn(),
   },
 }))
 
-jest.mock('#/analytics/identifiers/util', () => ({
+vi.mock('#/analytics/identifiers/util', () => ({
-  isSessionIdExpired: jest.fn(),
+  isSessionIdExpired: vi.fn(),
 }))
 
-jest.mock('#/lib/appState', () => ({
+vi.mock('#/lib/appState', () => ({
-  onAppStateChange: jest.fn(() => ({remove: jest.fn()})),
+  onAppStateChange: vi.fn(() => ({remove: vi.fn()})),
 }))
 
 beforeEach(() => {
-  jest.resetModules()
+  vi.resetModules()
-  jest.clearAllMocks()
+  vi.clearAllMocks()
 })
 
-function getMocks() {
+async function getMocks() {
-  const {device} = require('#/storage')
+  const {device} = await import('#/storage')
-  const {isSessionIdExpired} = require('#/analytics/identifiers/util')
+  const {isSessionIdExpired} = await import('#/analytics/identifiers/util')
   return {
-    device: jest.mocked(device),
+    device: vi.mocked(device),
-    isSessionIdExpired: jest.mocked(isSessionIdExpired),
+    isSessionIdExpired: vi.mocked(isSessionIdExpired),
   }
 }
 
 describe('session initialization', () => {
-  it('creates new session and sets timestamp when none exists', () => {
+  it('creates new session and sets timestamp when none exists', async () => {
-    const {device, isSessionIdExpired} = getMocks()
+    const {device, isSessionIdExpired} = await getMocks()
     device.get.mockReturnValue(undefined)
     isSessionIdExpired.mockReturnValue(false)
 
-    const {getInitialSessionId} = require('./session')
+    const {getInitialSessionId} = await import('./session')
     const id = getInitialSessionId()
 
     expect(id).toBeDefined()
@@ -45,8 +47,8 @@ describe('session initialization', () => {
     )
   })
 
-  it('reuses existing session when not expired', () => {
+  it('reuses existing session when not expired', async () => {
-    const {device, isSessionIdExpired} = getMocks()
+    const {device, isSessionIdExpired} = await getMocks()
     const existingId = 'existing-session-id'
     device.get.mockImplementation((key: string[]) => {
       if (key[0] === 'nativeSessionId') return existingId
@@ -55,13 +57,13 @@ describe('session initialization', () => {
     })
     isSessionIdExpired.mockReturnValue(false)
 
-    const {getInitialSessionId} = require('./session')
+    const {getInitialSessionId} = await import('./session')
 
     expect(getInitialSessionId()).toBe(existingId)
   })
 
-  it('creates new session when existing is expired', () => {
+  it('creates new session when existing is expired', async () => {
-    const {device, isSessionIdExpired} = getMocks()
+    const {device, isSessionIdExpired} = await getMocks()
     const existingId = 'existing-session-id'
     device.get.mockImplementation((key: string[]) => {
       if (key[0] === 'nativeSessionId') return existingId
@@ -70,7 +72,7 @@ describe('session initialization', () => {
     })
     isSessionIdExpired.mockReturnValue(true)
 
-    const {getInitialSessionId} = require('./session')
+    const {getInitialSessionId} = await import('./session')
     const id = getInitialSessionId()
 
     expect(id).not.toBe(existingId)

src/analytics/metrics/client.test.ts

@@ -1,26 +1,28 @@
+import {afterEach, beforeEach, describe, expect, it, type Mock, vi} from 'vitest'
+
 import {MetricsClient} from './client'
 
 let appStateCallback: (state: string) => void
 
-jest.mock('#/lib/appState', () => ({
+vi.mock('#/lib/appState', () => ({
-  onAppStateChange: jest.fn(cb => {
+  onAppStateChange: vi.fn(cb => {
     appStateCallback = cb
-    return {remove: jest.fn()}
+    return {remove: vi.fn()}
   }),
 }))
 
-jest.mock('#/logger', () => ({
+vi.mock('#/logger', () => ({
   Logger: {
     create: () => ({
-      info: jest.fn(),
+      info: vi.fn(),
-      debug: jest.fn(),
+      debug: vi.fn(),
-      error: jest.fn(),
+      error: vi.fn(),
     }),
     Context: {Metric: 'metric'},
   },
 }))
 
-jest.mock('#/env', () => ({
+vi.mock('#/env', () => ({
   METRICS_API_HOST: 'https://test.metrics.api',
   IS_WEB: false,
 }))
@@ -31,13 +33,13 @@ type TestEvents = {
 }
 
 describe('MetricsClient', () => {
-  let fetchMock: jest.Mock
+  let fetchMock: Mock
   let fetchRequests: {body: any}[]
 
   beforeEach(() => {
-    jest.useFakeTimers({advanceTimers: true})
+    vi.useFakeTimers({shouldAdvanceTime: true})
     fetchRequests = []
-    fetchMock = jest.fn().mockImplementation(async (_url, options) => {
+    fetchMock = vi.fn().mockImplementation(async (_url, options) => {
       const body = JSON.parse(options.body)
       fetchRequests.push({body})
       return {ok: true, status: 200}
@@ -46,8 +48,8 @@ describe('MetricsClient', () => {
   })
 
   afterEach(() => {
-    jest.useRealTimers()
+    vi.useRealTimers()
-    jest.clearAllMocks()
+    vi.clearAllMocks()
   })
 
   it('flushes events on interval', async () => {
@@ -58,7 +60,7 @@ describe('MetricsClient', () => {
     expect(fetchRequests).toHaveLength(0)
 
     // Advance past the 10 second interval
-    await jest.advanceTimersByTimeAsync(10_000)
+    await vi.advanceTimersByTimeAsync(10_000)
 
     expect(fetchRequests).toHaveLength(1)
     expect(fetchRequests[0].body.events).toHaveLength(2)
@@ -81,7 +83,7 @@ describe('MetricsClient', () => {
     client.track('click', {button: 'btn-trigger'})
 
     // Allow microtasks to run
-    await jest.advanceTimersByTimeAsync(0)
+    await vi.advanceTimersByTimeAsync(0)
 
     expect(fetchRequests).toHaveLength(1)
     expect(fetchRequests[0].body.events).toHaveLength(6)
@@ -112,14 +114,14 @@ describe('MetricsClient', () => {
     client.track('click', {button: 'submit'})
 
     // Trigger flush via interval
-    await jest.advanceTimersByTimeAsync(10_000)
+    await vi.advanceTimersByTimeAsync(10_000)
 
     expect(requestCount).toBe(1)
     expect(fetchRequests).toHaveLength(0)
 
     // Simulate app coming to foreground to trigger retry
     appStateCallback('active')
-    await jest.advanceTimersByTimeAsync(0)
+    await vi.advanceTimersByTimeAsync(0)
 
     expect(requestCount).toBe(2)
     expect(fetchRequests).toHaveLength(1)
@@ -144,19 +146,19 @@ describe('MetricsClient', () => {
     client.track('click', {button: 'submit'})
 
     // First flush fails
-    await jest.advanceTimersByTimeAsync(10_000)
+    await vi.advanceTimersByTimeAsync(10_000)
 
     expect(requestCount).toBe(1)
 
     // Retry also fails
     appStateCallback('active')
-    await jest.advanceTimersByTimeAsync(0)
+    await vi.advanceTimersByTimeAsync(0)
 
     expect(requestCount).toBe(2)
 
     // Another foreground event should not retry again (events are dropped)
     appStateCallback('active')
-    await jest.advanceTimersByTimeAsync(0)
+    await vi.advanceTimersByTimeAsync(0)
 
     expect(requestCount).toBe(2) // No additional requests
   })
@@ -169,7 +171,7 @@ describe('MetricsClient', () => {
 
     // Simulate app going to background
     appStateCallback('background')
-    await jest.advanceTimersByTimeAsync(0)
+    await vi.advanceTimersByTimeAsync(0)
 
     expect(fetchRequests).toHaveLength(1)
   })

src/components/PolicyUpdateOverlay/__tests__/useAnnouncementState.test.ts

@@ -1,11 +1,11 @@
-import {describe, test} from '@jest/globals'
+import {describe, expect, test, vi} from 'vitest'
 
 import {
   computeCompletedState,
   syncCompletedState,
 } from '#/components/PolicyUpdateOverlay/usePolicyUpdateState'
 
-jest.mock('../../../state/queries/nuxs')
+vi.mock('../../../state/queries/nuxs')
 
 describe('computeCompletedState', () => {
   test(`initial state`, () => {
@@ -67,8 +67,8 @@ describe('computeCompletedState', () => {
 describe('syncCompletedState', () => {
   describe('!nuxIsReady', () => {
     test(`!completedForDevice, no-op`, () => {
-      const save = jest.fn()
+      const save = vi.fn()
-      const setCompletedForDevice = jest.fn()
+      const setCompletedForDevice = vi.fn()
       syncCompletedState({
         nuxIsReady: false,
         nuxIsCompleted: false,
@@ -83,8 +83,8 @@ describe('syncCompletedState', () => {
     })
 
     test(`completedForDevice, no-op`, () => {
-      const save = jest.fn()
+      const save = vi.fn()
-      const setCompletedForDevice = jest.fn()
+      const setCompletedForDevice = vi.fn()
       syncCompletedState({
         nuxIsReady: false,
         nuxIsCompleted: false,
@@ -103,8 +103,8 @@ describe('syncCompletedState', () => {
     describe(`!nuxIsCompleted`, () => {
       describe(`!nuxIsOptimisticallyCompleted`, () => {
         test(`!completedForDevice, no-op`, () => {
-          const save = jest.fn()
+          const save = vi.fn()
-          const setCompletedForDevice = jest.fn()
+          const setCompletedForDevice = vi.fn()
           syncCompletedState({
             nuxIsReady: true,
             nuxIsCompleted: false,
@@ -119,8 +119,8 @@ describe('syncCompletedState', () => {
         })
 
         test(`completedForDevice, syncs to server`, () => {
-          const save = jest.fn()
+          const save = vi.fn()
-          const setCompletedForDevice = jest.fn()
+          const setCompletedForDevice = vi.fn()
           syncCompletedState({
             nuxIsReady: true,
             nuxIsCompleted: false,
@@ -141,8 +141,8 @@ describe('syncCompletedState', () => {
        */
       describe(`nuxIsOptimisticallyCompleted`, () => {
         test(`completedForDevice, no-op`, () => {
-          const save = jest.fn()
+          const save = vi.fn()
-          const setCompletedForDevice = jest.fn()
+          const setCompletedForDevice = vi.fn()
           syncCompletedState({
             nuxIsReady: true,
             nuxIsCompleted: false,
@@ -160,8 +160,8 @@ describe('syncCompletedState', () => {
 
     describe(`nuxIsCompleted`, () => {
       test(`!completedForDevice, syncs to device`, () => {
-        const save = jest.fn()
+        const save = vi.fn()
-        const setCompletedForDevice = jest.fn()
+        const setCompletedForDevice = vi.fn()
         syncCompletedState({
           nuxIsReady: true,
           nuxIsCompleted: true,
@@ -176,8 +176,8 @@ describe('syncCompletedState', () => {
       })
 
       test(`completedForDevice, no-op`, () => {
-        const save = jest.fn()
+        const save = vi.fn()
-        const setCompletedForDevice = jest.fn()
+        const setCompletedForDevice = vi.fn()
         syncCompletedState({
           nuxIsReady: true,
           nuxIsCompleted: true,

src/lib/__tests__/parseLinkingUrl.test.ts

@@ -1,4 +1,4 @@
-import {describe, expect, it} from '@jest/globals'
+import {describe, expect, it} from 'vitest'
 
 import {parseLinkingUrl} from '../parseLinkingUrl'
 

src/lib/__tests__/persisted-query-storage.test.ts

@@ -1,6 +1,6 @@
-import {beforeEach, describe, expect, it, jest} from '@jest/globals'
+import {beforeEach, describe, expect, it, vi} from 'vitest'
 
-jest.mock('@bsky.app/react-native-mmkv', () => ({
+vi.mock('@bsky.app/react-native-mmkv', () => ({
   MMKV: class MMKVMock {
     _store = new Map<string, string>()
 

src/lib/hooks/__tests__/useTimeAgo.test.ts

@@ -1,4 +1,4 @@
-import {describe, expect, it} from '@jest/globals'
+import {describe, expect, it} from 'vitest'
 import {addDays, subDays, subHours, subMinutes, subSeconds} from 'date-fns'
 
 import {dateDiff} from '../useTimeAgo'

src/locale/__tests__/helpers.test.ts

@@ -1,4 +1,4 @@
-import {expect, test} from '@jest/globals'
+import {expect, test} from 'vitest'
 
 import {sanitizeAppLanguageSetting} from '#/locale/helpers'
 import {AppLanguage} from '#/locale/languages'

src/logger/__tests__/logDump.test.ts

@@ -1,4 +1,4 @@
-import {expect, test} from '@jest/globals'
+import {expect, test} from 'vitest'
 
 import {add, type ConsoleTransportEntry, getEntries} from '#/logger/logDump'
 import {LogContext, LogLevel} from '#/logger/types'

src/logger/__tests__/logger.test.ts

@@ -1,4 +1,4 @@
-import {beforeAll, describe, expect, jest, test} from '@jest/globals'
+import {beforeAll, describe, expect, test, vi} from 'vitest'
 import * as Sentry from '@sentry/react-native'
 import {nanoid} from 'nanoid/non-secure'
 
@@ -6,14 +6,14 @@ import {Logger} from '#/logger'
 import {sentryTransport} from '#/logger/transports/sentry'
 import {LogLevel} from '#/logger/types'
 
-jest.mock('@sentry/react-native', () => ({
+vi.mock('@sentry/react-native', () => ({
-  addBreadcrumb: jest.fn(),
+  addBreadcrumb: vi.fn(),
-  captureException: jest.fn(),
+  captureException: vi.fn(),
-  captureMessage: jest.fn(),
+  captureMessage: vi.fn(),
 }))
 
 beforeAll(() => {
-  jest.useFakeTimers()
+  vi.useFakeTimers()
 })
 
 describe('general functionality', () => {
@@ -41,7 +41,7 @@ describe('general functionality', () => {
     const timestamp = Date.now()
     const logger = new Logger({})
 
-    const mockTransport = jest.fn()
+    const mockTransport = vi.fn()
 
     logger.addTransport(mockTransport)
 
@@ -63,7 +63,7 @@ describe('general functionality', () => {
       metadata: {bar: true},
     })
 
-    const mockTransport = jest.fn()
+    const mockTransport = vi.fn()
 
     logger.addTransport(mockTransport)
 
@@ -83,7 +83,7 @@ describe('general functionality', () => {
     const timestamp = Date.now()
     const logger = new Logger({})
 
-    const mockTransport = jest.fn()
+    const mockTransport = vi.fn()
 
     const remove = logger.addTransport(mockTransport)
 
@@ -181,7 +181,7 @@ describe('general functionality', () => {
       level: 'log',
       timestamp: sentryTimestamp,
     })
-    jest.runAllTimers()
+    vi.runAllTimers()
     expect(Sentry.captureMessage).toHaveBeenCalledWith(message, {
       level: 'log',
       tags: {category: 'logger'},
@@ -203,7 +203,7 @@ describe('general functionality', () => {
       level: 'warning',
       timestamp: sentryTimestamp,
     })
-    jest.runAllTimers()
+    vi.runAllTimers()
     expect(Sentry.captureMessage).toHaveBeenCalledWith(message, {
       level: 'warning',
       tags: {category: 'logger'},
@@ -262,7 +262,7 @@ describe('general functionality', () => {
   test('add/remove transport', () => {
     const timestamp = Date.now()
     const logger = new Logger({})
-    const mockTransport = jest.fn()
+    const mockTransport = vi.fn()
 
     const remove = logger.addTransport(mockTransport)
 
@@ -286,7 +286,7 @@ describe('general functionality', () => {
 
 describe('create', () => {
   test('create', () => {
-    const mockTransport = jest.fn()
+    const mockTransport = vi.fn()
     const timestamp = Date.now()
     const message = nanoid()
     const logger = Logger.create(Logger.Context.Default)
@@ -306,7 +306,7 @@ describe('create', () => {
 
 describe('debug contexts', () => {
   test('specific', () => {
-    const mockTransport = jest.fn()
+    const mockTransport = vi.fn()
     const timestamp = Date.now()
     const message = nanoid()
     const logger = new Logger({
@@ -328,7 +328,7 @@ describe('debug contexts', () => {
   })
 
   test('namespaced', () => {
-    const mockTransport = jest.fn()
+    const mockTransport = vi.fn()
     const timestamp = Date.now()
     const message = nanoid()
     const logger = new Logger({
@@ -351,7 +351,7 @@ describe('debug contexts', () => {
   })
 
   test('ignores inactive', () => {
-    const mockTransport = jest.fn()
+    const mockTransport = vi.fn()
     const timestamp = Date.now()
     const message = nanoid()
     const logger = new Logger({
@@ -380,7 +380,7 @@ describe('supports levels', () => {
       level: LogLevel.Debug,
     })
     const message = nanoid()
-    const mockTransport = jest.fn()
+    const mockTransport = vi.fn()
 
     logger.addTransport(mockTransport)
 
@@ -428,7 +428,7 @@ describe('supports levels', () => {
       level: LogLevel.Info,
     })
     const message = nanoid()
-    const mockTransport = jest.fn()
+    const mockTransport = vi.fn()
 
     logger.addTransport(mockTransport)
 
@@ -451,7 +451,7 @@ describe('supports levels', () => {
       level: LogLevel.Warn,
     })
     const message = nanoid()
-    const mockTransport = jest.fn()
+    const mockTransport = vi.fn()
 
     logger.addTransport(mockTransport)
 
@@ -477,7 +477,7 @@ describe('supports levels', () => {
       level: LogLevel.Error,
     })
     const message = nanoid()
-    const mockTransport = jest.fn()
+    const mockTransport = vi.fn()
 
     logger.addTransport(mockTransport)
 

src/screens/Search/__tests__/utils.test.ts

@@ -1,4 +1,4 @@
-import {describe, expect, it} from '@jest/globals'
+import {describe, expect, it} from 'vitest'
 
 import {parseSearchQuery} from '#/screens/Search/utils'
 

src/state/messages/__tests__/convo.test.ts

@@ -1,4 +1,4 @@
-import {describe, it} from '@jest/globals'
+import {describe, it} from 'vitest'
 
 describe(`#/state/messages/convo`, () => {
   describe(`init`, () => {

src/state/queries/nuxs/__mocks__/index.ts

@@ -1,25 +1,25 @@
-import {jest} from '@jest/globals'
+import {vi} from 'vitest'
 
 export {Nux} from '#/state/queries/nuxs/definitions'
 
-export const useNuxs = jest.fn(() => {
+export const useNuxs = vi.fn(() => {
   return {
     nuxs: undefined,
     status: 'loading' as const,
   }
 })
 
-export const useNux = jest.fn((id: string) => {
+export const useNux = vi.fn((id: string) => {
   return {
     nux: undefined,
     status: 'loading' as const,
   }
 })
 
-export const useSaveNux = jest.fn(() => {
+export const useSaveNux = vi.fn(() => {
   return {}
 })
 
-export const useResetNuxs = jest.fn(() => {
+export const useResetNuxs = vi.fn(() => {
   return {}
 })

src/state/session/__tests__/session-test.ts

@@ -1,21 +1,21 @@
 import {BskyAgent} from '@atproto/api'
-import {describe, expect, it, jest} from '@jest/globals'
+import {describe, expect, it, vi} from 'vitest'
 
 import {agentToSessionAccountOrThrow} from '../agent'
 import {type Action, getInitialState, reducer, type State} from '../reducer'
 
-jest.mock('jwt-decode', () => ({
+vi.mock('jwt-decode', () => ({
   jwtDecode(_token: string) {
     return {}
   },
 }))
 
-jest.mock('../../birthdate')
+vi.mock('../../birthdate')
-jest.mock('../../../ageAssurance/data')
+vi.mock('../../../ageAssurance/data')
-jest.mock('../../../ageAssurance/state', () => ({
+vi.mock('../../../ageAssurance/state', () => ({
   getAndComputeAgeAssuranceState: () => ({}),
 }))
-jest.mock('#/lib/notifications/notifications', () => ({
+vi.mock('#/lib/notifications/notifications', () => ({
   unregisterPushToken(_agents: BskyAgent[]) {
     return Promise.resolve()
   },

src/storage/__tests__/index.test.ts

@@ -1,8 +1,8 @@
-import {beforeEach, expect, jest, test} from '@jest/globals'
+import {beforeEach, expect, test, vi} from 'vitest'
 
 import {Storage} from '#/storage'
 
-jest.mock('@bsky.app/react-native-mmkv', () => ({
+vi.mock('@bsky.app/react-native-mmkv', () => ({
   MMKV: class MMKVMock {
     _store = new Map()
 

tsconfig.json

@@ -4,7 +4,7 @@
     "jsx": "react-jsx",
     "module": "esnext",
     "lib": ["dom", "esnext"],
-    "types": ["node", "jest"],
+    "types": ["node"],
     "paths": {
       "#/*": ["./src/*"],
       "crypto": ["./src/platform/crypto.ts"],

vitest.config.ts

@@ -0,0 +1,63 @@
+import {fileURLToPath} from 'node:url'
+
+import {lingui} from '@lingui/vite-plugin'
+import {defineConfig} from 'vitest/config'
+
+export default defineConfig({
+  plugins: [lingui()],
+  define: {
+    __DEV__: 'true',
+  },
+  resolve: {
+    tsconfigPaths: true,
+    alias: {
+      crypto: fileURLToPath(new URL('./src/platform/crypto.ts', import.meta.url)),
+    },
+  },
+  test: {
+    globals: false,
+    environment: 'node',
+    setupFiles: ['./vitest/setup.ts'],
+    include: [
+      '__tests__/**/*.test.{ts,tsx,js,jsx}',
+      'src/**/*.test.{ts,tsx}',
+      'src/**/__tests__/**/*.{ts,tsx}',
+      'eslint/**/*.test.{js,ts}',
+    ],
+    exclude: [
+      '**/node_modules/**',
+      '**/__mocks__/**',
+      '__e2e__/**',
+      'bskylink/**',
+      'bskyembed/**',
+    ],
+    testTimeout: 20000,
+    coverage: {
+      provider: 'v8',
+      exclude: [
+        'node_modules/**',
+        'src/platform/**',
+        'src/third-party/**',
+        'src/view/com/util/**',
+        'src/state/lib/**',
+        '__tests__/test-utils.js',
+      ],
+    },
+    server: {
+      deps: {
+        inline: [
+          /^react-native($|\/)/,
+          /^@react-native($|\/)/,
+          /^expo($|-|\/)/,
+          /^@expo($|\/)/,
+          /^@react-navigation($|\/)/,
+          /^react-native-svg($|\/)/,
+          /^nanoid($|\/)/,
+          /^@sentry($|\/)/,
+          /^sentry-expo($|\/)/,
+          /^bcp-47-match($|\/)/,
+        ],
+      },
+    },
+  },
+})

vitest/setup.ts

@@ -0,0 +1,134 @@
+import {EventEmitter} from 'node:events'
+
+import {vi} from 'vitest'
+
+// react-native ships Flow syntax in its index.js entry point, which Vitest's
+// rolldown parser cannot handle. None of the tests exercise actual RN runtime
+// behavior, so stub the whole module to satisfy transitive imports.
+vi.mock('react-native', () => ({
+  Platform: {OS: 'ios', select: (obj: any) => obj.ios ?? obj.default},
+  StyleSheet: {create: (s: any) => s, flatten: (s: any) => s, hairlineWidth: 1},
+  View: 'View',
+  Text: 'Text',
+  ScrollView: 'ScrollView',
+  FlatList: 'FlatList',
+  TextInput: 'TextInput',
+  Modal: 'Modal',
+  Image: 'Image',
+  Pressable: 'Pressable',
+  TouchableOpacity: 'TouchableOpacity',
+  TouchableWithoutFeedback: 'TouchableWithoutFeedback',
+  NativeModules: {},
+  NativeEventEmitter: EventEmitter,
+  AppState: {addEventListener: () => ({remove: () => {}}), currentState: 'active'},
+  Linking: {openURL: vi.fn(), canOpenURL: vi.fn().mockResolvedValue(true)},
+  Dimensions: {get: () => ({width: 375, height: 812}), addEventListener: () => ({remove: () => {}})},
+  PixelRatio: {get: () => 2, getFontScale: () => 1},
+  Keyboard: {addListener: () => ({remove: () => {}}), dismiss: () => {}},
+  InteractionManager: {runAfterInteractions: (fn: () => void) => fn()},
+  Animated: {View: 'AnimatedView', Value: class {}, timing: () => ({start: () => {}})},
+  UIManager: {},
+}))
+
+vi.mock('@react-native-async-storage/async-storage', () =>
+  require('@react-native-async-storage/async-storage/jest/async-storage-mock'),
+)
+
+vi.mock('react-native/Libraries/EventEmitter/NativeEventEmitter', () => ({
+  __esModule: true,
+  default: EventEmitter,
+}))
+
+vi.mock('@fortawesome/react-native-fontawesome', () => ({
+  FontAwesomeIcon: '',
+}))
+
+vi.mock('react-native-safe-area-context', () => {
+  const inset = {top: 0, right: 0, bottom: 0, left: 0}
+  return {
+    SafeAreaProvider: vi.fn().mockImplementation(({children}) => children),
+    SafeAreaConsumer: vi
+      .fn()
+      .mockImplementation(({children}) => children(inset)),
+    useSafeAreaInsets: vi.fn().mockImplementation(() => inset),
+  }
+})
+
+vi.mock('expo-file-system/legacy', () => ({
+  getInfoAsync: vi.fn().mockResolvedValue({exists: true, size: 100}),
+  deleteAsync: vi.fn(),
+  moveAsync: vi.fn().mockResolvedValue(undefined),
+  createDownloadResumable: vi.fn(),
+}))
+
+vi.mock('expo-image-manipulator', () => ({
+  manipulateAsync: vi.fn().mockResolvedValue({
+    uri: 'file://resized-image',
+  }),
+  SaveFormat: {
+    JPEG: 'jpeg',
+    WEBP: 'webp',
+  },
+}))
+
+vi.mock('expo-camera', () => ({
+  Camera: {
+    useCameraPermissions: vi.fn(() => [true]),
+  },
+}))
+
+vi.mock('expo-media-library', () => ({
+  __esModule: true,
+  default: vi.fn(),
+  usePermissions: vi.fn(() => [true]),
+}))
+
+vi.mock('@bsky.app/expo-guess-language', () => ({
+  guessLanguageSync: vi
+    .fn()
+    .mockReturnValue([{language: 'en', confidence: 1}]),
+  guessLanguageAsync: vi
+    .fn()
+    .mockResolvedValue([{language: 'en', confidence: 1}]),
+}))
+
+vi.mock('sentry-expo', () => ({
+  init: () => vi.fn(),
+  Native: {
+    ReactNativeTracing: vi.fn().mockImplementation(() => ({
+      start: vi.fn(),
+      stop: vi.fn(),
+    })),
+    ReactNavigationInstrumentation: vi.fn(),
+  },
+}))
+
+vi.mock('crypto', () => ({}))
+
+vi.mock('expo-application', () => ({
+  nativeApplicationVersion: '1.0.0',
+  nativeBuildVersion: '1',
+}))
+
+vi.mock('expo-modules-core', () => ({
+  requireNativeModule: vi.fn().mockImplementation(moduleName => {
+    if (moduleName === 'ExpoPlatformInfo') {
+      return {
+        getIsReducedMotionEnabled: () => false,
+      }
+    }
+    if (moduleName === 'BottomSheet') {
+      return {
+        dismissAll: () => {},
+      }
+    }
+  }),
+  requireNativeViewManager: vi.fn().mockImplementation(_ => {
+    return () => null
+  }),
+  createPermissionHook: () => () => [true],
+}))
+
+vi.mock('expo-localization', () => ({
+  getLocales: () => [],
+}))