simonsonjack
diff --git a/‎Algorithm.CSharp/CustomUniverseWithBenchmarkRegressionAlgorithm.cs‎
Lines changed: 8 additions & 0 deletions b/‎Algorithm.CSharp/CustomUniverseWithBenchmarkRegressionAlgorithm.cs‎
Lines changed: 8 additions & 0 deletions
diff --git a/‎Algorithm.Python/CustomBenchmarkAlgorithm.py‎
Lines changed: 5 additions & 1 deletion b/‎Algorithm.Python/CustomBenchmarkAlgorithm.py‎
Lines changed: 5 additions & 1 deletion
@@ -60,6 +60,14 @@ public override void Initialize()
 
             // internal daily resolution
             SetBenchmark("SPY");
+
+            Symbol symbol;
+            if (!SymbolCache.TryGetSymbol("SPY", out symbol)
+                || !ReferenceEquals(_spy, symbol))
+            {
+                throw new Exception("We expected 'SPY' to be added to the Symbol cache," +
+                                    " since the algorithm is also using it");
+            }
         }
 
         /// <summary>
 
@@ -42,4 +42,8 @@ def OnData(self, data):
         '''OnData event is the primary entry point for your algorithm. Each new data point will be pumped in here.'''
         if not self.Portfolio.Invested:
             self.SetHoldings("SPY", 1)
-            self.Debug("Purchased Stock")
+            self.Debug("Purchased Stock")
+
+        tupleResult = SymbolCache.TryGetSymbol("AAPL", None)
+        if tupleResult[0]:
+            raise Exception("Benchmark Symbol is not expected to be added to the Symbol cache")