public void WhenSelectingBadHandlerThenThrowsInvalidOperationException()
{
// Assign
DefaultCommandHandlerSelector resolver = this.CreateTestableService();
CommandHandlerRequest request = new CommandHandlerRequest(this.config, new BadCommand());
// Act & assert
Assert.Throws <InvalidOperationException>(() => resolver.SelectHandler(request));
}
public void WhenSelectingDuplicateHandlerThenThrowsInvalidOperationException()
{
// Assign
DefaultCommandHandlerSelector resolver = this.CreateTestableService();
CommandHandlerRequest request = new CommandHandlerRequest(this.config, new SimpleCommand());
this.config.Services.Replace(typeof(ICommandHandlerTypeResolver), new DuplicateCommandHandlerTypeResolver());
// Act & assert
Assert.Throws <InvalidOperationException>(() => resolver.SelectHandler(request));
}
public void WhenSelectingHandlerThenReturnHandlerDesciptor()
{
// Assign
DefaultCommandHandlerSelector resolver = this.CreateTestableService();
CommandHandlerRequest request = new CommandHandlerRequest(this.config, new SimpleCommand());
this.config.Services.Replace(typeof(ICommandHandlerTypeResolver), new SimpleCommandHandlerTypeResolver());
// Act
var descriptor = resolver.SelectHandler(request);
// Assert
Assert.NotNull(descriptor);
Assert.Equal(typeof(SimpleHandler1), descriptor.HandlerType);
Assert.Equal(typeof(SimpleCommand), descriptor.MessageType);
}