Index: frontend/node_modules/raf/test.js
===================================================================
--- frontend/node_modules/raf/test.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/raf/test.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,62 @@
+var test = require('tape')
+  , raf = require('./index.js')
+
+test('continues to emit events', function(t) {
+  t.plan(11)
+
+  var start = new Date().getTime()
+    , times = 0
+
+  raf(function tick(dt) {
+    t.ok(dt >= 0, 'time has passed: ' + dt)
+    if(++times == 10) {
+      var elapsed = (new Date().getTime() - start)
+      t.ok(elapsed >= 150, 'should take at least 9 frames worth of wall time: ' + elapsed)
+      t.end()
+    } else {
+      raf(tick)
+    }
+  })
+})
+
+test('cancel removes callbacks from queue', function(t) {
+  t.plan(6)
+
+  function cb1() { cb1.called = true }
+  function cb2() { cb2.called = true }
+  function cb3() { cb3.called = true }
+
+  var handle1 = raf(cb1)
+  t.ok(handle1, 'returns a handle')
+  var handle2 = raf(cb2)
+  t.ok(handle2, 'returns a handle')
+  var handle3 = raf(cb3)
+  t.ok(handle3, 'returns a handle')
+
+  raf.cancel(handle2)
+
+  raf(function() {
+    t.ok(cb1.called, 'callback was invoked')
+    t.notOk(cb2.called, 'callback was cancelled')
+    t.ok(cb3.called, 'callback was invoked')
+    t.end()
+  })
+})
+
+test('raf should throw on errors', function(t) {
+  t.plan(1)
+
+  var onError = function() {
+    t.pass('error bubbled up to event loop')
+  }
+
+  if(typeof window !== 'undefined') {
+    window.onerror = onError
+  } else if(typeof process !== 'undefined') {
+    process.on('uncaughtException', onError)
+  }
+
+  raf(function() {
+    throw new Error('foo')
+  })
+})