added unit testing, and started implementing unit tests...phew

node_modules/mocha/lib/browser/tty.js

@@ -0,0 +1,13 @@
+'use strict';
+
+exports.isatty = function isatty() {
+  return true;
+};
+
+exports.getWindowSize = function getWindowSize() {
+  if ('innerHeight' in global) {
+    return [global.innerHeight, global.innerWidth];
+  }
+  // In a Web Worker, the DOM Window is not available.
+  return [640, 480];
+};