public void SingleRegistrationReturnsExpectedResult()
{
var handler =
new MessageHandler <Checkpoint>(typeof(object), (_, _) => new ValueTask <Checkpoint>(Checkpoint.None));
var sut = CommandResolve.WhenEqualToHandlerMessageType(new[] { handler });
Assert.Equal(handler, sut.Invoke(new object()));
}
public void ZeroRegistrationsThrows()
{
var sut = CommandResolve.WhenEqualToHandlerMessageType(Array.Empty <MessageHandler <Checkpoint> >());
var ex = Assert.Throws <CommandResolveException>(() => sut.Invoke(new object()));
Assert.Equal(typeof(object), ex.CommandType);
Assert.Equal(0, ex.HandlerCount);
}
public void MultipleRegistrationsThrow()
{
var sut = CommandResolve.WhenEqualToHandlerMessageType(new[] {
new MessageHandler <Checkpoint>(typeof(object), (_, _) => new ValueTask <Checkpoint>(Checkpoint.None)),
new MessageHandler <Checkpoint>(typeof(object), (_, _) => new ValueTask <Checkpoint>(Checkpoint.None))
});
var ex = Assert.Throws <CommandResolveException>(() => sut.Invoke(new object()));
Assert.Equal(typeof(object), ex.CommandType);
Assert.Equal(2, ex.HandlerCount);
}
public CommandDispatcher(IEnumerable <CommandHandlerModule> commandHandlerModules)
: this(CommandResolve.WhenEqualToHandlerMessageType(commandHandlerModules))
{
}