jest configuration

Create jest folder, create setup.js file used after env

jest.config.js

@@ -2,6 +2,7 @@
 module.exports = {
   preset: 'react-native',
   setupFiles: ["./node_modules/react-native-gesture-handler/jestSetup.js"],
+  setupFilesAfterEnv:  ["./jest/setup.js"],
   extensionsToTreatAsEsm: ['.ts', '.tsx'],
   transformIgnorePatterns: [
 'node_modules/(?!((@)?react-native|react-native-url-polyfill|@react-navigation|react-native-track-player)/)',

jest/setup.js

@@ -0,0 +1,35 @@
+// https://github.com/doublesymmetry/react-native-track-player/issues/501
+jest.mock('react-native-track-player', () => {
+  return {
+    addEventListener: jest.fn(),
+    registerEventHandler: jest.fn(),
+    registerPlaybackService: jest.fn(),
+    setupPlayer: jest.fn(),
+    destroy: jest.fn(),
+    updateOptions: jest.fn(),
+    add: jest.fn(),
+    remove: jest.fn(),
+    skip: jest.fn(),
+    skipToNext: jest.fn(),
+    skipToPrevious: jest.fn(),
+    removeUpcomingTracks: jest.fn(),
+    // playback commands
+    reset: jest.fn(),
+    play: jest.fn(),
+    pause: jest.fn(),
+    stop: jest.fn(),
+    seekTo: jest.fn(),
+    setVolume: jest.fn(),
+    setRate: jest.fn(),
+    // player getters
+    getQueue: jest.fn(),
+    getTrack: jest.fn(),
+    getCurrentTrack: jest.fn(),
+    getVolume: jest.fn(),
+    getDuration: jest.fn(),
+    getPosition: jest.fn(),
+    getBufferedPosition: jest.fn(),
+    getState: jest.fn(),
+    getRate: jest.fn(),
+  };
+});