bump test related packages

Author: smdn

tests/Directory.Build.props

@@ -26,9 +26,9 @@ SPDX-License-Identifier: MIT
   />
 
   <ItemGroup Condition=" '$(IsTestProject)' == 'true' ">
-    <PackageReference Include="NUnit" Version="4.2.2" />
-    <PackageReference Include="NUnit3TestAdapter" Version="4.6.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1"/>
+    <PackageReference Include="NUnit" Version="4.3.2" />
+    <PackageReference Include="NUnit3TestAdapter" Version="5.0.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1"/>
     <PackageReference
       Include="Smdn.MSBuild.DefineConstants.NETSdkApi"
       Version="[1.5.0]"

tests/Directory.Build.targets

@@ -5,6 +5,9 @@ SPDX-License-Identifier: MIT
 <Project>
   <Import Project="$(MSBuildThisFileDirectory)TestReleasedPackage.targets" Condition=" '$(IsTestProject)' == 'true' " />
 
+  <ItemGroup>
+    <PackageReference Update="NUnit.Analyzers" Version="4.9.1"/>
+  </ItemGroup>
 
   <ImportGroup>
     <Import Project="$(SmdnProjectAssets_TargetsImports)" />

tests/Smdn.Reflection.ReverseGenerating.ListApi.Core/Smdn.Reflection.ReverseGenerating.ListApi/AssemblyLoader.cs

@@ -174,7 +174,7 @@ public void UsingAssembly_ArgumentNull_ActionWithLoadedAssembly(bool loadIntoRef
       );
     });
 
-    Assert.That(result, Is.EqualTo(default(int)), nameof(result));
+    Assert.That(result, Is.Default, nameof(result));
 
     if (loadIntoReflectionOnlyContext) {
       Assert.That(context, Is.Null, nameof(context));