Add unit tests for merging JSON configurations

Author: jsakamoto

Toolbelt.Blazor.WebAssembly.ExtensibleDevServer.UserSecretsExtension.slnx

@@ -4,5 +4,6 @@
     <File Path="README.md" />
     <File Path="RELEASE-NOTES.txt" />
   </Folder>
+  <Project Path="UserSecretsExtension.Test/UserSecretsExtension.Test.csproj" Id="354a45b4-b710-4fb2-b4ad-ed0dd8dc921d" />
   <Project Path="UserSecretsExtension/UserSecretsExtension.csproj" />
 </Solution>

UserSecretsExtension.Test/UserSecretsExtension.Test.csproj

@@ -0,0 +1,35 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <LangVersion>latest</LangVersion>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <WarningsAsErrors>$(WarningsAsErrors);nullable</WarningsAsErrors>
+    <IsPackable>false</IsPackable>
+    <EnableNUnitRunner>true</EnableNUnitRunner>
+    <OutputType>Exe</OutputType>
+    <TestingPlatformDotnetTestSupport>true</TestingPlatformDotnetTestSupport>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="ChainingAssertion-NUnit.Bin" Version="4.0.1" />
+    <PackageReference Include="coverlet.collector" Version="6.0.4" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
+    <PackageReference Include="NUnit" Version="4.4.0" />
+    <PackageReference Include="NUnit.Analyzers" Version="4.11.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="NUnit3TestAdapter" Version="6.1.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\UserSecretsExtension\UserSecretsExtension.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Using Include="NUnit.Framework" />
+  </ItemGroup>
+
+</Project>