Use Particular.AnalyzerTesting package

global.json

@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "9.0.0",
+    "version": "10.0.0",
     "allowPrerelease": false,
     "rollForward": "latestFeature"
   }

src/Custom.Build.props

@@ -5,4 +5,10 @@
     <MinVerAutoIncrement>minor</MinVerAutoIncrement>
   </PropertyGroup>
 
+  <PropertyGroup>
+    <!-- Package version controls what .NET and Visual Studio versions are supported by the analyzers. Update with care. -->
+    <RoslynPackageVersion>4.14.0</RoslynPackageVersion>
+    <RoslynPackagePathVersion>$(RoslynPackageVersion.Split(`.`)[0]).$(RoslynPackageVersion.Split(`.`)[1])</RoslynPackagePathVersion>
+  </PropertyGroup>
+
 </Project>

src/Particular.Analyzers.slnx

@@ -1,7 +1,9 @@
 <Solution>
   <Folder Name="/Solution Items/">
+    <File Path="..\global.json" />
     <File Path="Custom.Build.props" />
   </Folder>
-  <Project Path="Particular.Analyzers.Tests/Particular.Analyzers.Tests.csproj" />
   <Project Path="Particular.Analyzers/Particular.Analyzers.csproj" />
+  <Project Path="Tests.CurrentRoslynVersion/Tests.CurrentRoslynVersion.csproj" />
+  <Project Path="Tests.MinRoslynVersion/Tests.MinRoslynVersion.csproj" />
 </Solution>

src/Particular.Analyzers/Particular.Analyzers.csproj

@@ -17,12 +17,12 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.14.0" PrivateAssets="All" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="$(RoslynPackageVersion)" PrivateAssets="All" />
     <PackageReference Include="Particular.Packaging" Version="4.5.0" PrivateAssets="All" />
   </ItemGroup>
 
   <ItemGroup>
-    <None Include="$(OutputPath)\$(AssemblyName).dll" Pack="true" PackagePath="analyzers/dotnet/roslyn4.14/cs" Link="$(AssemblyName).dll" Visible="false" />
+    <None Include="$(OutputPath)\$(AssemblyName).dll" Pack="true" PackagePath="analyzers/dotnet/roslyn$(RoslynPackagePathVersion)/cs" Link="$(AssemblyName).dll" Visible="false" />
   </ItemGroup>
 
   <Target Name="UseMajorMinorPatchForAssemblyVersion" AfterTargets="MinVer">

src/Particular.Analyzers.Tests/AsyncVoidAnalyzerTests.cs → src/SharedTests/AsyncVoidAnalyzerTests.cs

@@ -1,8 +1,8 @@
 namespace Particular.Analyzers.Tests
 {
     using System.Threading.Tasks;
+    using AnalyzerTesting;
     using NUnit.Framework;
-    using Particular.Analyzers.Tests.Helpers;
 
     public class AsyncVoidAnalyzerTests : AnalyzerTestFixture<AsyncVoidAnalyzer>
     {

src/Particular.Analyzers.Tests/Cancellation/CancellationTryCatchAnalyzerTests.cs → src/SharedTests/Cancellation/CancellationTryCatchAnalyzerTests.cs

@@ -2,9 +2,10 @@
 {
     using System.Linq;
     using System.Threading.Tasks;
+    using AnalyzerTesting;
+    using Helpers;
     using NUnit.Framework;
     using Particular.Analyzers.Cancellation;
-    using Particular.Analyzers.Tests.Helpers;
     using Data = System.Collections.Generic.IEnumerable<object[]>;
 
     public class CancellationTryCatchAnalyzerTests : AnalyzerTestFixture<CancellationTryCatchAnalyzer>

src/Particular.Analyzers.Tests/Cancellation/ContextMethodParameterAnalyzerTests.cs → src/SharedTests/Cancellation/ContextMethodParameterAnalyzerTests.cs

@@ -2,9 +2,10 @@
 {
     using System.Collections.Generic;
     using System.Threading.Tasks;
+    using AnalyzerTesting;
+    using Helpers;
     using NUnit.Framework;
     using Particular.Analyzers.Cancellation;
-    using Particular.Analyzers.Tests.Helpers;
     using Data = System.Collections.Generic.IEnumerable<object[]>;
 
     public class ContextMethodParameterAnalyzerTests : AnalyzerTestFixture<ContextMethodParameterAnalyzer>

src/Particular.Analyzers.Tests/Cancellation/DelegateParametersAnalyzerTests.cs → src/SharedTests/Cancellation/DelegateParametersAnalyzerTests.cs

@@ -2,9 +2,10 @@
 {
     using System.Collections.Generic;
     using System.Threading.Tasks;
+    using AnalyzerTesting;
+    using Helpers;
     using NUnit.Framework;
     using Particular.Analyzers.Cancellation;
-    using Particular.Analyzers.Tests.Helpers;
     using Data = System.Collections.Generic.IEnumerable<object[]>;
 
     public class DelegateParametersAnalyzerTests : AnalyzerTestFixture<DelegateParametersAnalyzer>

src/Particular.Analyzers.Tests/Cancellation/EmptyTokenAnalyzerTests.cs → src/SharedTests/Cancellation/EmptyTokenAnalyzerTests.cs

@@ -2,9 +2,10 @@
 {
     using System.Collections.Generic;
     using System.Threading.Tasks;
+    using AnalyzerTesting;
+    using Helpers;
     using NUnit.Framework;
     using Particular.Analyzers.Cancellation;
-    using Particular.Analyzers.Tests.Helpers;
     using Data = System.Collections.Generic.IEnumerable<object[]>;
 
     public class EmptyTokenAnalyzerTests : AnalyzerTestFixture<EmptyTokenAnalyzer>