Add assertions since parsing shellout output is quite fragile

Author: michaelklishin

projects/client/Unit/src/unit/Fixtures.cs

@@ -439,6 +439,8 @@ protected List<ConnectionInfo> ListConnections()
             // line: <[email protected]>	58713
             return lines.Select(s => {
               var columns = s.Split('\t');
+              Debug.Assert(!string.IsNullOrEmpty(columns[0]), "columns[0] is null or empty!");
+	      Debug.Assert(!string.IsNullOrEmpty(columns[1]), "columns[1] is null or empty!");
               return new ConnectionInfo(columns[0], Convert.ToUInt32(columns[1]));
             }).ToList();
         }