Commit 7ce13ed

@@ -0,0 +1,42 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Gorilla.Commons.Utility.Extensions
+{
+    static public class ListExtensions
+    {
+        static public IListConstraint<T> add<T>(this IList<T> items, T item)
+        {
+            return new ListConstraint<T>(items, item);
+        }
+
+        static public IListConstraint<T> add_range<T>(this IList<T> items, IEnumerable<T> item)
+        {
+            return new ListConstraint<T>(items, item.ToArray());
+        }
+    }
+
+    public class ListConstraint<T> : IListConstraint<T>
+    {
+        readonly IList<T> items;
+        readonly T[] items_to_add;
+
+        public ListConstraint(IList<T> list_to_constrain, params T[] items_to_add)
+        {
+            items = list_to_constrain;
+            this.items_to_add = items_to_add;
+            items_to_add.each(list_to_constrain.Add);
+        }
+
+        public void unless(Func<T, bool> predicate)
+        {
+            items_to_add.where(predicate).each(x => items.Remove(x));
+        }
+    }
+
+    public interface IListConstraint<T>
+    {
+        void unless(Func<T, bool> predicate);
+    }
+}
\ No newline at end of file

@@ -0,0 +1,60 @@
+using System.Collections.Generic;
+using developwithpassion.bdd.contexts;
+using Gorilla.Commons.Testing;
+
+namespace Gorilla.Commons.Utility.Extensions
+{
+    public class when_adding_an_item_to_a_list : concerns
+    {
+        because b = () =>
+                        {
+                            list = new List<string>();
+                            list.add("mo");
+                        };
+
+        it should_add_the_item_to_the_list = () => list.should_contain("mo");
+
+        static List<string> list;
+    }
+
+    public abstract class when_asked_to_only_add_an_item_to_a_list_if_a_condition_is_not_met : concerns
+    {
+        context c = () => { list = new List<string>(); };
+
+        static protected List<string> list;
+    }
+
+    public class when_the_condition_is_not_met : when_asked_to_only_add_an_item_to_a_list_if_a_condition_is_not_met
+    {
+        because b = () => list.add("mo").unless(x => false);
+
+        it should_add_the_item_to_the_list = () => list.should_contain("mo");
+    }
+
+    public class when_the_condition_is_met : when_asked_to_only_add_an_item_to_a_list_if_a_condition_is_not_met
+    {
+        because b = () => list.add("mo").unless(x => true);
+
+        it should_not_add_the_item_to_the_list = () => list.should_not_contain("mo");
+    }
+
+    public class when_some_of_the_items_meet_the_conditions_and_some_do_not :
+        when_asked_to_only_add_an_item_to_a_list_if_a_condition_is_not_met
+    {
+        because b = () => list
+                              .add_range(new List<string> {"mo", "khan"})
+                              .unless(x => x.Equals("mo"));
+
+        it should_add_the_items_that_do_not_meet_the_condition = () =>
+                                                                     {
+                                                                         list.Count.should_be_equal_to(1);
+                                                                         list.should_contain("khan");
+                                                                     };
+
+        it should_not_add_the_items_that_do_meet_the_condition = () => list.should_not_contain("mo");
+    }
+
+    public class ListExtensionsSpecs
+    {
+    }
+}
\ No newline at end of file

@@ -101,6 +101,8 @@
     <Compile Include="Extensions\EnumerableExtensions.cs" />
     <Compile Include="Extensions\EnumerableExtensionsSpecs.cs" />
     <Compile Include="Extensions\FuncExtensions.cs" />
+    <Compile Include="Extensions\ListExtensions.cs" />
+    <Compile Include="Extensions\ListExtensionsSpecs.cs" />
     <Compile Include="Extensions\MappingExtensions.cs" />
     <Compile Include="Extensions\MappingExtensionsSpecs.cs" />
     <Compile Include="Extensions\NumericConversions.cs" />

@@ -1,6 +1,7 @@
 using developwithpassion.bdd.contexts;
 using Gorilla.Commons.Infrastructure.Threading;
 using Gorilla.Commons.Testing;
+using MbUnit.Framework;
 using MoMoney.Presentation.Core;
 
 namespace MoMoney.Presentation.Presenters.Commands
@@ -9,6 +10,7 @@ namespace MoMoney.Presentation.Presenters.Commands
     {
     }
 
+    [Ignore]
     [Concern(typeof (RunThe<>))]
     public class when_initializing_different_regions_of_the_user_interface :
         concerns_for<IRunThe<IPresenter>, RunThe<IPresenter>>

@@ -0,0 +1,1 @@
+<%@ ServiceHost Language="C#" Service="MoMoney.Service.Application.AddNewIncomeCommand" CodeBehind="MoMoney.Service.Application.AddNewIncomeCommand.cs" />
\ No newline at end of file

@@ -13,7 +13,8 @@ namespace MoMoney.Service.Application
         readonly IIncomeRepository all_income;
         readonly ICompanyRepository companys;
 
-        public AddNewIncomeCommand(ICustomerTasks tasks, INotification notification, IIncomeRepository all_income,ICompanyRepository companys)
+        public AddNewIncomeCommand(ICustomerTasks tasks, INotification notification, IIncomeRepository all_income,
+                                   ICompanyRepository companys)
         {
             this.tasks = tasks;
             this.notification = notification;

@@ -117,6 +117,9 @@
       <Name>MoMoney.DTO</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <Content Include="Application\Public\AddNewIncomeCommand.svc" />
+  </ItemGroup>
   <ItemGroup>
     <Folder Include="Domain\" />
     <Folder Include="Properties\" />