Add request/cancelAnimationFrame to jest setup

Reviewed By: cpojer

Differential Revision: D5005587

fbshipit-source-id: 653c281df9025a75ed8eecd22a2e64eaf188bf3e

Libraries/Animated/src/__tests__/Animated-test.js

@@ -111,11 +111,6 @@ describe('Animated tests', () => {
 
 
     it('stops animation when detached', () => {
-      // jest environment doesn't have cancelAnimationFrame :(
-      if (!global.cancelAnimationFrame) {
-        global.cancelAnimationFrame = jest.fn();
-      }
-
       var anim = new Animated.Value(0);
       var callback = jest.fn();
 

Libraries/Animated/src/__tests__/AnimatedNative-test.js

@@ -55,11 +55,6 @@ describe('Native Animated', () => {
     nativeAnimatedModule.startListeningToAnimatedNodeValue = jest.fn();
     nativeAnimatedModule.stopAnimation = jest.fn();
     nativeAnimatedModule.stopListeningToAnimatedNodeValue = jest.fn();
-
-    // jest environment doesn't have cancelAnimationFrame :(
-    if (!global.cancelAnimationFrame) {
-      global.cancelAnimationFrame = jest.fn();
-    }
   });
 
   describe('Animated Value', () => {

jest/setup.js

@@ -19,6 +19,13 @@ global.__DEV__ = true;
 global.Promise = require.requireActual('promise');
 global.regeneratorRuntime = require.requireActual('regenerator-runtime/runtime');
 
+global.requestAnimationFrame = function(callback) {
+  setTimeout(callback, 0);
+};
+global.cancelAnimationFrame = function(id) {
+  clearTimeout(id);
+};
+
 jest
   .mock('setupDevtools')
   .mock('npmlog');