Enable multi-targeting Roslyn for unit test projects

Author: Sergio0694

CommunityToolkit.Mvvm.SourceGenerators/CommunityToolkit.Mvvm.SourceGenerators.csproj

@@ -19,7 +19,7 @@
     <MvvmToolkitSourceGeneratorRoslynVersion Condition="'$(MvvmToolkitSourceGeneratorRoslynVersion)' == ''">4.0.1</MvvmToolkitSourceGeneratorRoslynVersion>
 
     <!-- The output path will end up being eg. "bin\Debug\roslyn4.0\netstandard2.0" (the trailing "netstandard2.0" is added automatically) -->
-    <OutputPath>bin\$(Configuration)\roslyn$(MvvmToolkitSourceGeneratorRoslynVersion.Substring(0, 3))</OutputPath>
+    <OutputPath>bin\$(Configuration)\roslyn$(MvvmToolkitSourceGeneratorRoslynVersion.Substring(0, 3))\</OutputPath>
 
     <!-- Also define a "ROSLYN_<MAJOR>_<MINOR>" build constant, so the generator code can multi-target whenever needed and add any required polyfills -->
     <DefineConstants>$(DefineConstants);ROSLYN_$(MvvmToolkitSourceGeneratorRoslynVersion.Substring(0, 3).Replace('.', '_'))</DefineConstants>

tests/CommunityToolkit.Mvvm.ExternalAssembly/CommunityToolkit.Mvvm.ExternalAssembly.csproj

@@ -12,9 +12,15 @@
     <NoWarn>$(NoWarn);CS8002;SA0001</NoWarn>
   </PropertyGroup>
 
+  <!-- See comments in CommunityToolkit.MvvmUnitTests -->
+  <PropertyGroup>
+    <MvvmToolkitSourceGeneratorRoslynVersion Condition="'$(MvvmToolkitSourceGeneratorRoslynVersion)' == ''">4.3.0</MvvmToolkitSourceGeneratorRoslynVersion>
+  </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\CommunityToolkit.Mvvm\CommunityToolkit.Mvvm.csproj" />
-    <ProjectReference Include="..\..\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" PrivateAssets="contentfiles;build" />
+    <ProjectReference Include="..\..\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" PrivateAssets="contentfiles;build">
+      <Properties>MvvmToolkitSourceGeneratorRoslynVersion=$(MvvmToolkitSourceGeneratorRoslynVersion)</Properties>
+    </ProjectReference>
   </ItemGroup>
 
 </Project>

tests/CommunityToolkit.Mvvm.SourceGenerators.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.UnitTests.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFrameworks>net472;netcoreapp3.1;net6.0</TargetFrameworks>
@@ -11,9 +11,15 @@
     <PackageReference Include="MSTest.TestFramework" Version="2.2.8" />
   </ItemGroup>
 
+  <!-- See comments in CommunityToolkit.MvvmUnitTests -->
+  <PropertyGroup>
+    <MvvmToolkitSourceGeneratorRoslynVersion Condition="'$(MvvmToolkitSourceGeneratorRoslynVersion)' == ''">4.3.0</MvvmToolkitSourceGeneratorRoslynVersion>
+  </PropertyGroup>
   <ItemGroup>
-    <ProjectReference Include="..\..\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.csproj" />
     <ProjectReference Include="..\..\CommunityToolkit.Mvvm\CommunityToolkit.Mvvm.csproj" />
+    <ProjectReference Include="..\..\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.csproj">
+      <Properties>MvvmToolkitSourceGeneratorRoslynVersion=$(MvvmToolkitSourceGeneratorRoslynVersion)</Properties>
+    </ProjectReference>
   </ItemGroup>
 
 </Project>

tests/CommunityToolkit.Mvvm.UnitTests/CommunityToolkit.Mvvm.UnitTests.csproj

@@ -12,9 +12,18 @@
   </ItemGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\..\CommunityToolkit.Mvvm\CommunityToolkit.Mvvm.csproj" />
-    <ProjectReference Include="..\..\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" PrivateAssets="contentfiles;build" />
     <ProjectReference Include="..\CommunityToolkit.Mvvm.ExternalAssembly\CommunityToolkit.Mvvm.ExternalAssembly.csproj" />
   </ItemGroup>
 
+  <!-- Since the MVVM Toolkit generator uses multi-targeting for Roslyn versions, we also want to test all of them here -->
+  <PropertyGroup>
+    <MvvmToolkitSourceGeneratorRoslynVersion Condition="'$(MvvmToolkitSourceGeneratorRoslynVersion)' == ''">4.3.0</MvvmToolkitSourceGeneratorRoslynVersion>
+  </PropertyGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\CommunityToolkit.Mvvm\CommunityToolkit.Mvvm.csproj" />
+    <ProjectReference Include="..\..\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" PrivateAssets="contentfiles;build">
+      <Properties>MvvmToolkitSourceGeneratorRoslynVersion=$(MvvmToolkitSourceGeneratorRoslynVersion)</Properties>
+    </ProjectReference>
+  </ItemGroup>
+
 </Project>