How to unit test Service Stacks Redis Client with Moq - unit-testing

Question

I'm trying to understand how can I mock the IRedisClientsManager so that I can unit test the Handle Method below using Moq.
Cheers
public class PropertyCommandHandler : ICommandHandlerFor<PropertySaveRequest, PropertyCommandResult>
{
private readonly IRedisClientsManager _manager;
public PropertyCommandHandler(IRedisClientsManager manager)
{
this._manager = manager;
}
public PropertyCommandResult Handle(PropertySaveRequest request)
{
request.Property.OwnerId.ValidateArgumentRange();
using (var client =_manager.GetClient())
{
var propertyClient = client.As<Model.Property>();
var propertyKey = string.Format("property:{0}", request.Property.OwnerId);
propertyClient.SetEntry(propertyKey, request.Property);
client.AddItemToSet("property", request.Property.OwnerId.ToString());
}
return new PropertyCommandResult() {Success = true};
}
}
Which I call from the service like so
public class PropertyService : Service, IPropertyService
{
private readonly ICommandHandlerFor<PropertySaveRequest, PropertyCommandResult> _commandHandler;
public PropertyService(ICommandHandlerFor<PropertySaveRequest, PropertyCommandResult> commandHandler)
{
this._commandHandler = commandHandler;
}
public object Post(PropertySaveRequest request)
{
if (request.Property == null)
throw new HttpError(HttpStatusCode.BadRequest, "Property cannot be null");
var command = _commandHandler.Handle(request);
return command;
}
}
so far this has been the approach - not sure if on right track
[Test]
public void TestMethod1()
{
//arrange
_container = new WindsorContainer()
.Install(new PropertyInstaller());
var mock = new Mock<IRedisClientsManager>();
var instance = new Mock<RedisClient>();
mock.Setup(t => t.GetClient()).Returns(instance);
// cannot resolve method error on instance
// stuck ...
var service = _container.Resolve<IPropertyService>(mock);
}

Answer 1

In short, since RedisClient implements IRedisClient, did you try to create the mock using the interface?
var instance = new Mock<IRedisClient>();
why are you using a real container for your unit test?
You should use an auto-mocking container or simply (since you are already taking care of the mock manually) create a real instance of your test target supplying mocks as dependencies
var target= new PropertyCommandHandler(mock);
BTW IMHO a "command handler" that returns a value sounds like a smell...