Help with Mock.Arrange public method

[Javier]

Hi I would like to test this piece of code:

/// <summary>
    /// Represents the Automatic Warehouse add in
    /// </summary>
    ///  /// <seealso cref=""/>
    public class AutomaticWarehouseKpiAddInn: IKeyPerformanceIndicatorAddIn
    {

        /// <summary>
        /// Gets or sets the configuration extension service.
        /// </summary>
        [Dependency]
        public IConfigurationExtensionService ConfigurationExtensionService { get; set; }

        public void Initialize()
        {
            ConfigurationExtensionService.RegisterExtension(typeof(AutomaticWarehouseCommanderAddInConfiguration),
                                                             new AutomaticWarehouseCommanderConveyorConfigConverter());
        }
    }

And I tried to test it like this:

[TestMethod]
      public void InitializeRegisterExtensionCorrectly()
      {
          IConfigurationExtensionService configurationExtensionService = Mock.Create<ConverterConfigurationBuilder>();

          AutomaticWarehouseKpiAddInn automaticWarehouseKpiAddInn = new AutomaticWarehouseKpiAddInn
              {
                  ConfigurationExtensionService = configurationExtensionService
              };
          Mock.Arrange(() => configurationExtensionService.RegisterExtension(null, null)).MustBeCalled();
          automaticWarehouseKpiAddInn.Initialize();

          Mock.Assert(configurationExtensionService);
      }

What I am doing wrong?

[Kaloyan]

Hi Javier,

I assume you will need to pass correctly matching arguments in the arrange. For example, if your RegisterExtension method is implemented like so:

void RegisterExtension(Type automaticWarehouseCommanderAddInConfiguration,
            AutomaticWarehouseCommanderConveyorConfigConverter aWCCCC);

You will need to change the null arguments in the arrange with matchers:

Mock.Arrange(() => configurationExtensionService.RegisterExtension(Arg.IsAny<Type>(),
                Arg.IsAny<AutomaticWarehouseCommanderConveyorConfigConverter>()))
                .MustBeCalled();

Another approach is to completely ignore the arguments in the arrange:

Mock.Arrange(() => configurationExtensionService.RegisterExtension(null, null))
                .IgnoreArguments()
                .MustBeCalled();

I hope this helps. Contact us again if you need further assistance.

Regards,
Kaloyan
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