1 files changed, 21 insertions, 12 deletions
diff --git a/lib/internal/setImmediate.js b/lib/internal/setImmediate.js
index 7d15249..eb4ea63 100644
--- a/lib/internal/setImmediate.js
+++ b/lib/internal/setImmediate.js
@@ -1,21 +1,30 @@
 'use strict';
+
 import rest from 'lodash/rest';
 
-var _setImmediate = typeof setImmediate === 'function' && setImmediate;
+export var hasSetImmediate = typeof setImmediate === 'function' && setImmediate;
+export var hasNextTick = typeof process === 'object' && typeof process.nextTick === 'function';
+
+export function fallback(fn) {
+    setTimeout(fn, 0);
+}
+
+export function wrap(defer) {
+    return rest(function (fn, args) {
+         defer(function () {
+             fn.apply(null, args);
+         });
+     });
+}
 
 var _defer;
-if (_setImmediate) {
-    _defer = _setImmediate;
-} else if (typeof process === 'object' && typeof process.nextTick === 'function') {
+
+if (hasSetImmediate) {
+    _defer = setImmediate;
+} else if (hasNextTick) {
     _defer = process.nextTick;
 } else {
-    _defer = function(fn) {
-        setTimeout(fn, 0);
-    };
+    _defer = fallback;
 }
 
-export default rest(function (fn, args) {
-    _defer(function () {
-        fn.apply(null, args);
-    });
-});
+export default wrap(_defer);