1 files changed, 13 insertions, 0 deletions
diff --git a/tests/lib/mocha-3.1.2/lib/browser/tty.js b/tests/lib/mocha-3.1.2/lib/browser/tty.js
new file mode 100644
index 0000000000..c77f7e99a6
--- /dev/null
+++ b/tests/lib/mocha-3.1.2/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];
+};