Migrate to TUnit for unit testing (#714)

Author: viceroypenguin

Directory.Build.props

@@ -4,6 +4,7 @@
 
 	<Nullable>enable</Nullable>
 	<WarningsAsErrors>$(WarningsAsErrors);nullable;</WarningsAsErrors>
+    <Features>strict</Features>
 
 	<ImplicitUsings>enable</ImplicitUsings>
 

Directory.Packages.props

@@ -5,8 +5,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-	<PackageVersion Include="coverlet.collector" Version="6.0.2" />
-	<PackageVersion Include="coverlet.msbuild" Version="6.0.2" />
+	<PackageVersion Include="coverlet.collector" Version="6.0.3" />
+	<PackageVersion Include="coverlet.msbuild" Version="6.0.3" />
 	<PackageVersion Include="DocFx.App" Version="2.78.2" />
 	<PackageVersion Include="DotNet.ReproducibleBuilds" Version="1.2.25" />
 	<PackageVersion Include="GitHubActionsTestLogger" Version="2.4.1" />
@@ -23,17 +23,10 @@
 	<PackageVersion Include="System.Linq.Async" Version="6.0.1" />
 	<PackageVersion Include="System.Memory" Version="4.5.5" />
 	<PackageVersion Include="ThisAssembly.Resources" Version="1.4.3" />
-	<PackageVersion Include="xunit" Version="2.9.2" />
+    <PackageVersion Include="TUnit.Engine" Version="0.6.15" />
+    <PackageVersion Include="xunit.v3.assert" Version="1.0.0" />
   </ItemGroup>
-
-  <ItemGroup Condition=" '$(TargetFramework)' != 'netcoreapp3.1' ">
-	<PackageVersion Include="xunit.runner.visualstudio" Version="2.8.2" PrivateAssets="All" />
-  </ItemGroup>
-
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp3.1' ">
-	<PackageVersion Include="xunit.runner.visualstudio" Version="2.4.5" PrivateAssets="All" />
-  </ItemGroup>
-
+  
   <ItemGroup>
 	<GlobalPackageReference Include="Meziantou.Analyzer" Version="2.0.184" />
 	<GlobalPackageReference Include="PolySharp" Version="1.15.0" />

Source/SuperLinq.Async/SuperLinq.Async.csproj

@@ -5,7 +5,6 @@
   <PropertyGroup>
 	<AssemblyName>SuperLinq.Async</AssemblyName>
 	<RootNamespace>SuperLinq.Async</RootNamespace>
-	<TargetFrameworks>netstandard2.0;$(TargetFrameworks)</TargetFrameworks>
 
 	<IsAotCompatible Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net7.0'))">true</IsAotCompatible>
   </PropertyGroup>
@@ -21,9 +20,6 @@
 
 	<PublishRepositoryUrl>true</PublishRepositoryUrl>
 	<RepositoryUrl>https://github.com/viceroypenguin/SuperLinq</RepositoryUrl>
-
-	<IncludeSymbols>true</IncludeSymbols>
-	<SymbolPackageFormat>snupkg</SymbolPackageFormat>
   </PropertyGroup>
 
   <PropertyGroup>

Source/SuperLinq/SuperLinq.csproj

@@ -5,7 +5,6 @@
   <PropertyGroup>
     <AssemblyName>SuperLinq</AssemblyName>
     <RootNamespace>SuperLinq</RootNamespace>
-    <TargetFrameworks>netstandard2.0;$(TargetFrameworks)</TargetFrameworks>
 
     <PolySharpIncludeRuntimeSupportedAttributes>true</PolySharpIncludeRuntimeSupportedAttributes>
 
@@ -23,9 +22,6 @@
 
     <PublishRepositoryUrl>true</PublishRepositoryUrl>
     <RepositoryUrl>https://github.com/viceroypenguin/SuperLinq</RepositoryUrl>
-
-    <IncludeSymbols>true</IncludeSymbols>
-    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
   </PropertyGroup>
 
   <PropertyGroup>
@@ -167,7 +163,7 @@
     <PackageReference Include="Microsoft.Bcl.HashCode" />
     <PackageReference Include="Microsoft.CodeAnalysis.PublicApiAnalyzers" PrivateAssets="All" />
 	<PackageReference Include="MinVer" PrivateAssets="All" />
-    <PackageReference Include="System.Memory" />
+	<PackageReference Include="System.Memory" />
   </ItemGroup>
 
   <PropertyGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">

SuperLinq.sln

@@ -20,11 +20,11 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Tests", "Tests", "{99F4CCA1
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SuperLinq", "Source\SuperLinq\SuperLinq.csproj", "{921016AA-80B6-44ED-8A92-E96601C92C4E}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SuperLinq.Test", "Tests\SuperLinq.Test\SuperLinq.Test.csproj", "{674D18D8-CCE1-4102-AF6E-E6F993813422}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SuperLinq.Test", "Tests\SuperLinq.Tests\SuperLinq.Tests.csproj", "{674D18D8-CCE1-4102-AF6E-E6F993813422}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SuperLinq.Async", "Source\SuperLinq.Async\SuperLinq.Async.csproj", "{84058331-3025-438D-8A68-B55EE859C70D}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SuperLinq.Async.Test", "Tests\SuperLinq.Async.Test\SuperLinq.Async.Test.csproj", "{1A4F94C6-2143-486B-B787-271506C327FC}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SuperLinq.Async.Test", "Tests\SuperLinq.Async.Tests\SuperLinq.Async.Tests.csproj", "{1A4F94C6-2143-486B-B787-271506C327FC}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Generators", "Generators", "{7805222E-6CD5-41FE-9945-0D9FD7DFA24C}"
 EndProject

TargetFrameworks.props

@@ -1,7 +1,7 @@
 <Project>
 
 	<PropertyGroup>
-		<TargetFrameworks>netcoreapp3.1;net6.0</TargetFrameworks>
+		<TargetFrameworks>netstandard2.0;netcoreapp3.1;net6.0</TargetFrameworks>
 		<TargetFrameworks Condition="$([MSBuild]::VersionGreaterThanOrEquals('$(NETCoreSdkVersion)', '8.0'))">$(TargetFrameworks);net8.0</TargetFrameworks>
 		<TargetFrameworks Condition="$([MSBuild]::VersionGreaterThanOrEquals('$(NETCoreSdkVersion)', '9.0'))">$(TargetFrameworks);net9.0</TargetFrameworks>
 	</PropertyGroup>

Tests/SuperLinq.Async.Test/CountDownTest.cs

@@ -1,6 +1,7 @@
 [*.cs]
 
 dotnet_diagnostic.CA1707.severity = none				# CA1707: Identifiers should not contain underscores
+dotnet_diagnostic.CA1822.severity = none                # CA1822: Mark members as static
 dotnet_diagnostic.CA1861.severity = none                # CA1861: Avoid constant arrays as arguments
 dotnet_diagnostic.CA2201.severity = none				# CA2201: Do not raise reserved exception types
 
@@ -11,9 +12,5 @@ dotnet_diagnostic.CS1573.severity = none                # CS1573: Missing XML co
 dotnet_diagnostic.CS1591.severity = none                # CS1591: Missing XML comment for publicly visible type or member
 dotnet_diagnostic.CS1712.severity = none                # CS1712: Type parameter has no matching typeparam tag in the XML comment (but other type parameters do)
 
-# xUnit errors
-dotnet_diagnostic.xUnit1008.severity = error			# xUnit1008: Test data attribute should only be used on a Theory
-dotnet_diagnostic.xUnit1013.severity = error			# xUnit1013: Public method should be marked as test
-dotnet_diagnostic.xUnit1042.severity = none				# xUnit1042: The member referenced by the MemberData attribute returns untyped data rows
-
 dotnet_diagnostic.MA0046.severity = none
+dotnet_diagnostic.TUnit0046.severity = none