Add unit test for AddToWatchList

MarketDataUnitTests/MarketDataUnitTestClass.cs

@@ -47,6 +47,17 @@ public class MarketDataUnitTestClass
     return true;
   }
 
+  /// <summary>
+  /// AddToWatchList
+  /// </summary>
+  [TestMethod]
+  public void AddToWatchList()
+  {
+    List<String> symbols = new List<String>(new string[]{"SPY","^VIX"});
+    bool result = WatchListDA.AddToWatchList(symbols);
+    Assert.IsTrue(result);
+  }
+
   /// <summary>
   /// </summary>
   [TestMethod]