Squashed commit of the following:

References #5. commit 595ba47 Author: Jan-Willem Spuij <[email protected]> Date: Tue Nov 26 17:48:41 2019 +0100 Formatting. commit ad385e1 Author: Jan-Willem Spuij <[email protected]> Date: Tue Nov 26 17:37:15 2019 +0100 Convenience methods for unit tests. References #5. commit 0957bda Author: Jan-Willem Spuij <[email protected]> Date: Mon Nov 25 23:03:08 2019 +0100 comments commit 9cdb534 Author: Jan-Willem Spuij <[email protected]> Date: Mon Nov 25 22:59:56 2019 +0100 Bugfix reentrancy commit aaa9b2b Author: Jan-Willem Spuij <[email protected]> Date: Mon Nov 25 13:48:24 2019 +0100 More work on unit tests. commit 261049a Author: Jan-Willem Spuij <[email protected]> Date: Sun Nov 24 22:31:29 2019 +0100 More unit tests. commit 2899f90 Author: Jan-Willem Spuij <[email protected]> Date: Sun Nov 24 17:38:15 2019 +0100 Start with unit tests. Implemented Computed Value observe.
jspuij · Nov 28, 2019 · 02c08ca · 02c08ca
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diff --git a/src/Cortex.Net/Api/ActionExtensions.cs b/src/Cortex.Net/Api/ActionExtensions.cs
@@ -30,7 +30,7 @@ public static partial class ActionExtensions
         /// <param name="action">The action itself.</param>
         public static void RunInAction(this ISharedState sharedState, Action action)
         {
-            CreateAction(sharedState, null, null, action)();
+            CreateAction(sharedState, "<unnamed action>", null, action)();
         }
 
         /// <summary>

diff --git a/src/Cortex.Net/Api/ActionExtensions.generated.cs b/src/Cortex.Net/Api/ActionExtensions.generated.cs
@@ -32,7 +32,7 @@ public static partial class ActionExtensions
         /// <param name="action">The action itself.</param>
         public static Action CreateAction(this ISharedState sharedState, Action action)
         {
-            return CreateAction(sharedState, null, null, action);
+            return CreateAction(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>
@@ -80,7 +80,7 @@ public static Action CreateAction(this ISharedState sharedState, string actionNa
         /// <param name="action">The action itself.</param>
         public static Action<T1> CreateAction<T1>(this ISharedState sharedState, Action<T1> action)
         {
-            return CreateAction<T1>(sharedState, null, null, action);
+            return CreateAction<T1>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>
@@ -128,7 +128,7 @@ public static Action<T1> CreateAction<T1>(this ISharedState sharedState, string
         /// <param name="action">The action itself.</param>
         public static Action<T1,T2> CreateAction<T1,T2>(this ISharedState sharedState, Action<T1,T2> action)
         {
-            return CreateAction<T1,T2>(sharedState, null, null, action);
+            return CreateAction<T1,T2>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>
@@ -176,7 +176,7 @@ public static Action<T1,T2> CreateAction<T1,T2>(this ISharedState sharedState, s
         /// <param name="action">The action itself.</param>
         public static Action<T1,T2,T3> CreateAction<T1,T2,T3>(this ISharedState sharedState, Action<T1,T2,T3> action)
         {
-            return CreateAction<T1,T2,T3>(sharedState, null, null, action);
+            return CreateAction<T1,T2,T3>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>
@@ -224,7 +224,7 @@ public static Action<T1,T2,T3> CreateAction<T1,T2,T3>(this ISharedState sharedSt
         /// <param name="action">The action itself.</param>
         public static Action<T1,T2,T3,T4> CreateAction<T1,T2,T3,T4>(this ISharedState sharedState, Action<T1,T2,T3,T4> action)
         {
-            return CreateAction<T1,T2,T3,T4>(sharedState, null, null, action);
+            return CreateAction<T1,T2,T3,T4>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>
@@ -272,7 +272,7 @@ public static Action<T1,T2,T3,T4> CreateAction<T1,T2,T3,T4>(this ISharedState sh
         /// <param name="action">The action itself.</param>
         public static Action<T1,T2,T3,T4,T5> CreateAction<T1,T2,T3,T4,T5>(this ISharedState sharedState, Action<T1,T2,T3,T4,T5> action)
         {
-            return CreateAction<T1,T2,T3,T4,T5>(sharedState, null, null, action);
+            return CreateAction<T1,T2,T3,T4,T5>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>
@@ -320,7 +320,7 @@ public static Action<T1,T2,T3,T4,T5> CreateAction<T1,T2,T3,T4,T5>(this ISharedSt
         /// <param name="action">The action itself.</param>
         public static Action<T1,T2,T3,T4,T5,T6> CreateAction<T1,T2,T3,T4,T5,T6>(this ISharedState sharedState, Action<T1,T2,T3,T4,T5,T6> action)
         {
-            return CreateAction<T1,T2,T3,T4,T5,T6>(sharedState, null, null, action);
+            return CreateAction<T1,T2,T3,T4,T5,T6>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>
@@ -368,7 +368,7 @@ public static Action<T1,T2,T3,T4,T5,T6> CreateAction<T1,T2,T3,T4,T5,T6>(this ISh
         /// <param name="action">The action itself.</param>
         public static Action<T1,T2,T3,T4,T5,T6,T7> CreateAction<T1,T2,T3,T4,T5,T6,T7>(this ISharedState sharedState, Action<T1,T2,T3,T4,T5,T6,T7> action)
         {
-            return CreateAction<T1,T2,T3,T4,T5,T6,T7>(sharedState, null, null, action);
+            return CreateAction<T1,T2,T3,T4,T5,T6,T7>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>
@@ -416,7 +416,7 @@ public static Action<T1,T2,T3,T4,T5,T6,T7> CreateAction<T1,T2,T3,T4,T5,T6,T7>(th
         /// <param name="action">The action itself.</param>
         public static Action<T1,T2,T3,T4,T5,T6,T7,T8> CreateAction<T1,T2,T3,T4,T5,T6,T7,T8>(this ISharedState sharedState, Action<T1,T2,T3,T4,T5,T6,T7,T8> action)
         {
-            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8>(sharedState, null, null, action);
+            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>
@@ -464,7 +464,7 @@ public static Action<T1,T2,T3,T4,T5,T6,T7,T8> CreateAction<T1,T2,T3,T4,T5,T6,T7,
         /// <param name="action">The action itself.</param>
         public static Action<T1,T2,T3,T4,T5,T6,T7,T8,T9> CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9>(this ISharedState sharedState, Action<T1,T2,T3,T4,T5,T6,T7,T8,T9> action)
         {
-            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9>(sharedState, null, null, action);
+            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>
@@ -512,7 +512,7 @@ public static Action<T1,T2,T3,T4,T5,T6,T7,T8,T9> CreateAction<T1,T2,T3,T4,T5,T6,
         /// <param name="action">The action itself.</param>
         public static Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10> CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10>(this ISharedState sharedState, Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10> action)
         {
-            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10>(sharedState, null, null, action);
+            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>
@@ -560,7 +560,7 @@ public static Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10> CreateAction<T1,T2,T3,T4,T5
         /// <param name="action">The action itself.</param>
         public static Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11> CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11>(this ISharedState sharedState, Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11> action)
         {
-            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11>(sharedState, null, null, action);
+            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>
@@ -608,7 +608,7 @@ public static Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11> CreateAction<T1,T2,T3,T
         /// <param name="action">The action itself.</param>
         public static Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12> CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12>(this ISharedState sharedState, Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12> action)
         {
-            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12>(sharedState, null, null, action);
+            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>
@@ -656,7 +656,7 @@ public static Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12> CreateAction<T1,T2,
         /// <param name="action">The action itself.</param>
         public static Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13> CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13>(this ISharedState sharedState, Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13> action)
         {
-            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13>(sharedState, null, null, action);
+            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>
@@ -704,7 +704,7 @@ public static Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13> CreateAction<T1
         /// <param name="action">The action itself.</param>
         public static Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14> CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14>(this ISharedState sharedState, Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14> action)
         {
-            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14>(sharedState, null, null, action);
+            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>
@@ -752,7 +752,7 @@ public static Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14> CreateActio
         /// <param name="action">The action itself.</param>
         public static Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15> CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15>(this ISharedState sharedState, Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15> action)
         {
-            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15>(sharedState, null, null, action);
+            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>
@@ -800,7 +800,7 @@ public static Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15> CreateA
         /// <param name="action">The action itself.</param>
         public static Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16> CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16>(this ISharedState sharedState, Action<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16> action)
         {
-            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16>(sharedState, null, null, action);
+            return CreateAction<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>

diff --git a/src/Cortex.Net/Api/ActionExtensions.generated.tt b/src/Cortex.Net/Api/ActionExtensions.generated.tt
@@ -56,7 +56,7 @@ namespace Cortex.Net.Api
         /// <param name="action">The action itself.</param>
         public static Action<#=typeArgs#> CreateAction<#=typeArgs#>(this ISharedState sharedState, Action<#=typeArgs#> action)
         {
-            return CreateAction<#=typeArgs#>(sharedState, null, null, action);
+            return CreateAction<#=typeArgs#>(sharedState, "<unnamed action>", null, action);
         }
 
 	    /// <summary>

diff --git a/src/Cortex.Net/Api/SharedStateObservableExtensions.cs b/src/Cortex.Net/Api/SharedStateObservableExtensions.cs
@@ -181,5 +181,28 @@ public static IDictionary<TKey, TValue> Dictionary<TKey, TValue>(this ISharedSta
 
             return new ObservableDictionary<TKey, TValue>(sharedState, enhancer, initialValues, name);
         }
+
+        /// <summary>
+        /// Creates a computed value.
+        /// </summary>
+        /// <typeparam name="T">The type of the elements.</typeparam>
+        /// <param name="sharedState">The shared state to operate on.</param>
+        /// <param name="getter">The getter function to use.</param>
+        /// <param name="name">The name of the observable collection.</param>
+        /// <returns>The computed value.</returns>
+        public static IComputedValue<T> Computed<T>(this ISharedState sharedState, Func<T> getter, string name = null)
+        {
+            if (sharedState is null)
+            {
+                throw new ArgumentNullException(nameof(sharedState));
+            }
+
+            if (string.IsNullOrEmpty(name))
+            {
+                name = $"{nameof(ComputedValue<T>)}@{sharedState.GetUniqueId()}";
+            }
+
+            return new ComputedValue<T>(sharedState, new ComputedValueOptions<T>(getter, name));
+        }
     }
 }
diff --git a/src/Cortex.Net/Core/ActionExtensions.cs b/src/Cortex.Net/Core/ActionExtensions.cs
@@ -33,7 +33,7 @@ public static partial class ActionExtensions
         /// <param name="scope">The scope of the action.</param>
         /// <param name="arguments">The arguments to the action.</param>
         /// <returns>An <see cref="ActionRunInfo"/> instance containing the information on the currently running action.</returns>
-        private static ActionRunInfo StartAction(ISharedState sharedState, string actionName, object scope, object[] arguments)
+        internal static ActionRunInfo StartAction(ISharedState sharedState, string actionName, object scope, object[] arguments)
         {
             var notifySpy = !string.IsNullOrEmpty(actionName);
             var previousDerivation = sharedState.StartUntracked();
@@ -74,7 +74,7 @@ private static ActionRunInfo StartAction(ISharedState sharedState, string action
         /// Ends an action using the specified <see cref="ActionRunInfo"/> instance.
         /// </summary>
         /// <param name="actionRunInfo">The run info about the action.</param>
-        private static void EndAction(ActionRunInfo actionRunInfo)
+        internal static void EndAction(ActionRunInfo actionRunInfo)
         {
             if (actionRunInfo.SharedState.CurrentActionId != actionRunInfo.ActionId)
             {