public void NumberOfPointsRequestHandler_SendsMessage_ForMessage(
            [NotNull, Frozen] ISelkieInMemoryBus bus,
            [NotNull] NumberOfPointsModel sut)
        {
            // Arrange
            SetNumberOfPoints(sut,
                              1);

            var message = new NumberOfPointsRequestMessage();

            // Act
            sut.NumberOfPointsRequestHandler(message);

            // Assert
            bus.Received().PublishAsync(Arg.Is <NumberOfPointsChangedMessage>(x => x.NumberOfPoints == 1));
        }
 internal void NumberOfPointsRequestHandler(NumberOfPointsRequestMessage message)
 {
     SendNumberOfPointsChangedMessage();
 }