Added test!!!!!

src/test/data/WatchListTest.java

@@ -111,5 +111,15 @@ public class WatchListTest {
     @Test
     public void testUpdateEmptyList() {
         watchlist.updateList();
+        watchlist.addStock("MSFT");
+        watchlist.updateList();
+        //https://stackoverflow.com/questions/24104313/how-do-i-make-a-delay-in-java
+        try {
+            Thread.sleep(500);
+        } catch (Exception e) {
+            e.printStackTrace();
+            fail();
+        } 
+        watchlist.updateList();
     }
 }