1 files changed, 28 insertions, 0 deletions
diff --git a/src/privateMocks.js b/src/privateMocks.js
new file mode 100644
index 00000000..6d9fb34f
--- /dev/null
+++ b/src/privateMocks.js
@@ -0,0 +1,28 @@
+function createMockStyleSheet(doc, wind) {
+  doc = doc ? doc[0] : document;
+  wind = wind || window;
+
+  var node = doc.createElement('style');
+  var head = doc.getElementsByTagName('head')[0];
+  head.appendChild(node);
+
+  var ss = doc.styleSheets[doc.styleSheets.length - 1];
+
+  return {
+    addRule : function(selector, styles) {
+      try {
+        ss.insertRule(selector + '{ ' + styles + '}', 0);
+      }
+      catch(e) {
+        try {
+          ss.addRule(selector, styles);
+        }
+        catch(e) {}
+      }
+    },
+
+    destroy : function() {
+      head.removeChild(node);
+    }
+  };
+};