void before_each()
 {
     _channel = new GenericHandlerForTesting <OneGenerationOfCellStatesAggregated>();
     _subject = new CellStateAggregator(_channel);
     _subject.Consume(new GameInitiated
     {
         grid = new GridBuilder().SetGridSizeTo(2).Build()
     });
 }
 void before_each()
 {
     _channel = new GenericHandlerForTesting<OneGenerationOfCellStatesAggregated>();
     _subject = new CellStateAggregator(_channel);
     _subject.Consume(new GameInitiated
     {
         grid = new GridBuilder().SetGridSizeTo(2).Build()
     });
 }