Fix jsdom

Author: bheston

packages/adaptive-ui/.mocha-jsdom.js

@@ -0,0 +1,7 @@
+// Fill in some gaps required by fast-element for testing in JSDOM
+
+import "jsdom-global/register.js";
+
+global.MutationObserver = window.MutationObserver;
+
+window.matchMedia = function() {}

packages/adaptive-ui/.mocharc.json

@@ -4,6 +4,6 @@
     "timeout": 5000,
     "spec": "dist/**/*.spec.js",
     "require": [
-        "jsdom-global/register"
+        "./.mocha-jsdom.js"
     ]
 }