Test migration to jest by hand

Apparently using regular expressions is way easier.

test/recordAnimationFrames/recordAnimationFrames.js

@@ -0,0 +1,21 @@
+const recordAnimationFrames = (callback, autoStart = true) => {
+let running = true,
+raf;
+const stop = () => {
+running = false;
+cancelAnimationFrame(raf);
+};
+const start = () => {
+running = true;
+run();
+};
+const run = () => {
+raf = requestAnimationFrame(() => {
+callback();
+if (running) run();
+
+};
+if (autoStart) start();
+return { start, stop };
+};
+module.exports = recordAnimationFrames;