public void CommandBus_Should_Throw_NotImplementedException_If_Handler_Not_Found()
{
// Arrange
var resolver = new Mock <IResolver>();
var command = this.random.Create <SampleCommand>();
var bus = new CommandBus(resolver.Object);
void action(CommandBus c) => c.Send(command);
// Action && Assert
bus.Invoking(action).Should()
.Throw <NotImplementedException>()
.WithMessage($"Handler not found for command '{command.GetType().Name}'");
}