Support for constraint violation and not found standard error codes

.gitignore

@@ -1,3 +1,4 @@
 *.vs/
 *bin/
 *obj/
+*.user

YuckQi.Domain.sln

@@ -1,13 +1,19 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 16
-VisualStudioVersion = 16.0.30804.86
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31919.166
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "YuckQi.Domain", "src\YuckQi.Domain\YuckQi.Domain.csproj", "{D1B3FB54-0212-41AE-AB29-30AD97269375}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "YuckQi.Domain.Validation", "src\YuckQi.Domain.Validation\YuckQi.Domain.Validation.csproj", "{A620A320-F2E9-43A7-858C-9BAF1D76CD8E}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "YuckQi.Domain.Services", "src\YuckQi.Domain.Services\YuckQi.Domain.Services.csproj", "{0F24D228-C35A-4DB0-BD64-3E33A3D02B02}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "YuckQi.Domain.Services", "src\YuckQi.Domain.Services\YuckQi.Domain.Services.csproj", "{0F24D228-C35A-4DB0-BD64-3E33A3D02B02}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "YuckQi.Domain.Validation.UnitTests", "test\YuckQi.Domain.Validation.UnitTests\YuckQi.Domain.Validation.UnitTests.csproj", "{153AC057-A111-4A2D-950B-8FB331A1124E}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Tests", "Tests", "{5B0AF740-A98C-402C-BE34-FD3E95384BA3}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Unit Tests", "Unit Tests", "{4012738B-4956-416F-AC49-28E5F00297B3}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -27,10 +33,18 @@ Global
 		{0F24D228-C35A-4DB0-BD64-3E33A3D02B02}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{0F24D228-C35A-4DB0-BD64-3E33A3D02B02}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{0F24D228-C35A-4DB0-BD64-3E33A3D02B02}.Release|Any CPU.Build.0 = Release|Any CPU
+		{153AC057-A111-4A2D-950B-8FB331A1124E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{153AC057-A111-4A2D-950B-8FB331A1124E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{153AC057-A111-4A2D-950B-8FB331A1124E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{153AC057-A111-4A2D-950B-8FB331A1124E}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(NestedProjects) = preSolution
+		{153AC057-A111-4A2D-950B-8FB331A1124E} = {4012738B-4956-416F-AC49-28E5F00297B3}
+		{4012738B-4956-416F-AC49-28E5F00297B3} = {5B0AF740-A98C-402C-BE34-FD3E95384BA3}
+	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {7B79E244-ED98-4357-89F3-0E9586941E8B}
 	EndGlobalSection

YuckQi.Domain.sln.DotSettings

@@ -6,6 +6,7 @@
 	<s:Int64 x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/KEEP_BLANK_LINES_IN_CODE/@EntryValue">1</s:Int64>
 	<s:Int64 x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/KEEP_BLANK_LINES_IN_DECLARATIONS/@EntryValue">1</s:Int64>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/SPACE_AFTER_LOGICAL_NOT_OP/@EntryValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/SPACE_WITHIN_SINGLE_LINE_ARRAY_INITIALIZER_BRACES/@EntryValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/WRAP_LINES/@EntryValue">False</s:Boolean>
 	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ECSharpKeepExistingMigration/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ECSharpPlaceEmbeddedOnSameLineMigration/@EntryIndexedValue">True</s:Boolean>

src/YuckQi.Domain.Services/YuckQi.Domain.Services.csproj

@@ -1,10 +1,10 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <Authors>Kevin J Lambert</Authors>
-    <Version>0.6.0</Version>
+    <Version>1.1.0</Version>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
     <Description>A .NET library for bootstrapping a domain services project.</Description>
   </PropertyGroup>

src/YuckQi.Domain.Validation/Result.cs

@@ -10,7 +10,7 @@ public class Result
 
         public IReadOnlyCollection<ResultDetail> Detail { get; }
 
-        public Boolean IsValid => Detail == null || Detail.All(t => t.Type != ResultType.Error);
+        public Boolean IsValid => Detail != null && Detail.Any(t => t.Type == ResultType.Error);
 
         #endregion
 
@@ -19,7 +19,7 @@ public class Result
 
         public Result(IReadOnlyCollection<ResultDetail> detail)
         {
-            Detail = detail;
+            Detail = detail ?? Array.Empty<ResultDetail>();
         }
 
         #endregion
@@ -36,13 +36,26 @@ public class Result<T> : Result
 
         #region Constructors
 
-        public Result(ResultDetail detail) : base(new List<ResultDetail> {detail}) { }
+        public Result(ResultDetail detail) : base(new List<ResultDetail> { detail }) { }
 
         public Result(T payload, IReadOnlyCollection<ResultDetail> detail = null) : base(detail)
         {
             Payload = payload;
         }
 
         #endregion
+
+
+        #region Public Methods
+
+        public static Result<T> ConstraintViolation<TKey>(TKey key, String message = null) where TKey : struct => new Result<T>(ResultDetail.ConstraintViolation<T, TKey>(key, message));
+
+        public Boolean IsConstraintConflict => Detail.Any(t => String.Equals(t.Code, ResultCode.ConstraintViolation));
+
+        public Boolean IsNotFound => Detail.Any(t => String.Equals(t.Code, ResultCode.NotFound));
+
+        public static Result<T> NotFound<TKey>(TKey key, String message = null) where TKey : struct => new Result<T>(ResultDetail.NotFound<T, TKey>(key, message));
+
+        #endregion
     }
 }

src/YuckQi.Domain.Validation/ResultCode.cs

@@ -20,7 +20,9 @@ public readonly struct ResultCode
 
         #region Constants
 
+        public static readonly ResultCode ConstraintViolation = new ResultCode(nameof(ConstraintViolation));
         public static readonly ResultCode InvalidRequestDetail = new ResultCode(nameof(InvalidRequestDetail));
+        public static readonly ResultCode NotFound = new ResultCode(nameof(NotFound));
 
         #endregion
 

src/YuckQi.Domain.Validation/ResultDetail.cs

@@ -11,6 +11,14 @@ public class ResultDetail
         #endregion
 
 
+        #region Constants
+
+        public static ResultDetail ConstraintViolation<T, TKey>(TKey key, String message = null) where TKey : struct => new ResultDetail(ResultCode.ConstraintViolation, ResultMessage.ConstraintConflict<T, TKey>(key, message));
+        public static ResultDetail NotFound<T, TKey>(TKey key, String message = null) where TKey : struct => new ResultDetail(ResultCode.NotFound, ResultMessage.NotFound<T, TKey>(key, message));
+
+        #endregion
+
+
         #region Properties
 
         public ResultMessage Message { get; }

src/YuckQi.Domain.Validation/ResultMessage.cs

@@ -21,5 +21,13 @@ public ResultMessage(String id, String text = null)
         }
 
         #endregion
+
+
+        #region Public Methods
+
+        public static ResultMessage ConstraintConflict<T, TKey>(TKey key, String message = null) where TKey : struct => new ResultMessage($"{ResultCode.ConstraintViolation.GetHashCode()}", message ?? $"'{typeof(T).Name}' '{key}' already exists.");
+        public static ResultMessage NotFound<T, TKey>(TKey key, String message = null) where TKey : struct => new ResultMessage($"{ResultCode.NotFound.GetHashCode()}", message ?? $"'{typeof(T).Name}' '{key}' could not be found.");
+
+        #endregion
     }
 }

src/YuckQi.Domain.Validation/YuckQi.Domain.Validation.csproj

@@ -4,7 +4,7 @@
     <TargetFramework>netstandard2.0</TargetFramework>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <Authors>Kevin J Lambert</Authors>
-    <Version>1.0.0</Version>
+    <Version>1.1.0</Version>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
     <Description>A .NET library providing domain validation fundamentals.</Description>
   </PropertyGroup>

src/YuckQi.Domain/YuckQi.Domain.csproj

@@ -4,7 +4,7 @@
     <TargetFramework>netstandard2.0</TargetFramework>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <Authors>Kevin J Lambert</Authors>
-    <Version>1.0.0</Version>
+    <Version>1.1.0</Version>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
     <Description>A .NET library for bootstrapping a domain model project.</Description>
   </PropertyGroup>

test/YuckQi.Domain.Validation.UnitTests/ResultCodeTests.cs

@@ -0,0 +1,20 @@
+using NUnit.Framework;
+
+namespace YuckQi.Domain.Validation.UnitTests;
+
+public class ResultCodeTests
+{
+    [SetUp]
+    public void Setup() { }
+
+    [Test]
+    public void ResultCode_WithSameCode_HasSameHashCode()
+    {
+        var a = new ResultCode("test");
+        var hashCodeA = a.GetHashCode();
+        var b = new ResultCode("test");
+        var hashCodeB = b.GetHashCode();
+
+        Assert.AreEqual(hashCodeA, hashCodeB);
+    }
+}

test/YuckQi.Domain.Validation.UnitTests/YuckQi.Domain.Validation.UnitTests.csproj

@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <Nullable>enable</Nullable>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
+    <PackageReference Include="NUnit" Version="3.13.2" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.0.0" />
+    <PackageReference Include="coverlet.collector" Version="3.1.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\src\YuckQi.Domain.Validation\YuckQi.Domain.Validation.csproj" />
+  </ItemGroup>
+
+</Project>