added checks using the youtube api on segment submission

src/utils/youtubeAPI.js

@@ -2,8 +2,18 @@ var config = require('../config.js');
 
 // YouTube API
 const YouTubeAPI = require("youtube-api");
-YouTubeAPI.authenticate({
-    type: "key",
-    key: config.youtubeAPIKey
-});
-module.exports = YouTubeAPI;
+
+var exportObject;
+// If in test mode, return a mocked youtube object
+//   otherwise return an authenticated youtube api
+if (config.mode === "test") {
+    exportObject = require("../../test/youtubeMock.js");
+} else {
+    YouTubeAPI.authenticate({
+        type: "key",
+        key: config.youtubeAPIKey
+    });
+    exportObject = YouTubeAPI;
+}
+
+module.exports = exportObject;