refactor app directory structure and add tests

tests/node_modules/nightwatch/lib/api/client-commands/pause.js

@@ -0,0 +1,46 @@
+var util = require('util');
+var events = require('events');
+
+/**
+ * Suspends the test for the given time in milliseconds. If the milliseconds argument is missing it will suspend the test indefinitely
+ *
+ * ```
+ * this.demoTest = function (browser) {
+ *   browser.pause(1000);
+ *   // or suspend indefinitely
+ *   browser.pause();
+ * };
+ * ```
+ *
+ * @method pause
+ * @param {number} ms The number of milliseconds to wait.
+ * @param {function} [callback] Optional callback function to be called when the command finishes.
+ * @api commands
+ */
+
+function Pause() {
+  events.EventEmitter.call(this);
+}
+
+util.inherits(Pause, events.EventEmitter);
+
+Pause.prototype.command = function(ms, cb) {
+  var self = this;
+  // If we don't pass the milliseconds, the client will
+  // be suspended indefinitely
+  if (!ms) {
+    return this;
+  }
+  setTimeout(function() {
+    // if we have a callback, call it right before the complete event
+    if (cb) {
+      cb.call(self.client.api);
+    }
+
+    self.emit('complete');
+  }, ms);
+
+  return this;
+};
+
+module.exports = Pause;