refactor: Use custom Verify logic

Directory.Packages.props

@@ -98,8 +98,6 @@
 		<PackageVersion Include="RichardSzalay.MockHttp" Version="7.0.0" />
 		<PackageVersion Include="Serilog.Extensions.Logging" Version="10.0.0" />
 		<PackageVersion Include="Shouldly" Version="4.3.0"/>
-		<PackageVersion Include="Verify.SourceGenerators" Version="2.5.0"/>
-		<PackageVersion Include="Verify.XunitV3" Version="32.0.0"/>
 		<PackageVersion Include="Xunit.Combinatorial" Version="2.0.24"/>
 		<PackageVersion Include="coverlet.collector" Version="10.0.1" />
 		<PackageVersion Include="coverlet.msbuild" Version="10.0.1" />

tests/bunit.generators.tests/Web.AngleSharp/WrapperElementsGeneratorTest.cs

@@ -2,25 +2,90 @@
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.CSharp;
 using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Text;
 
 namespace Bunit.Web.AngleSharp;
 
 public class WrapperElementsGeneratorTest
 {
+	private const string SnapshotPrefix = "WrapperElementsGeneratorTest.Generator#";
+	private const string SnapshotSuffix = ".verified.cs";
+
 	[Fact]
-	public Task Generator()
+	public void Generator()
 	{
 		var inputCompilation = CreateCompilation();
 		var generator = new WrapperElementsGenerator();
 
 		GeneratorDriver driver = CSharpGeneratorDriver.Create(generator);
 		driver = driver.RunGenerators(inputCompilation, Xunit.TestContext.Current.CancellationToken);
 
-		var settings = new VerifySettings();
-		settings.AutoVerify();
-		return Verify(driver.GetRunResult(), settings);
+		var result = driver.GetRunResult();
+		Assert.Empty(result.Diagnostics);
+		var run = Assert.Single(result.Results);
+		Assert.Null(run.Exception);
+
+		var changed = UpdateSnapshots(run.GeneratedSources);
+		Assert.True(changed.Count == 0,
+			$"Snapshots were updated, review and commit the changes:{Environment.NewLine}{string.Join(Environment.NewLine, changed)}");
+	}
+
+	private static List<string> UpdateSnapshots(IEnumerable<GeneratedSourceResult> sources, [CallerFilePath] string testFilePath = "")
+	{
+		using var mutex = new Mutex(initiallyOwned: false, @"Global\bunit.generators.tests.WrapperElementsSnapshots");
+		try
+		{
+			if (!mutex.WaitOne(TimeSpan.FromMinutes(1)))
+				throw new TimeoutException("Timed out waiting for the snapshot lock.");
+		}
+		catch (AbandonedMutexException)
+		{
+		}
+
+		try
+		{
+			return CompareAndUpdateSnapshots(sources, Path.GetDirectoryName(testFilePath)!);
+		}
+		finally
+		{
+			mutex.ReleaseMutex();
+		}
 	}
 
+	private static List<string> CompareAndUpdateSnapshots(IEnumerable<GeneratedSourceResult> sources, string directory)
+	{
+		var changed = new List<string>();
+		var expectedFiles = new HashSet<string>(StringComparer.Ordinal);
+
+		foreach (var source in sources)
+		{
+			var fileName = SnapshotPrefix + Path.GetFileNameWithoutExtension(source.HintName) + SnapshotSuffix;
+			var path = Path.Combine(directory, fileName);
+			expectedFiles.Add(fileName);
+
+			var actual = Normalize($"//HintName: {source.HintName}\n{source.SourceText}");
+			var existing = File.Exists(path) ? Normalize(File.ReadAllText(path)) : null;
+			if (existing == actual)
+				continue;
+
+			File.WriteAllText(path, actual, new UTF8Encoding(encoderShouldEmitUTF8Identifier: true));
+			changed.Add(fileName);
+		}
+
+		foreach (var stale in Directory.EnumerateFiles(directory, SnapshotPrefix + "*" + SnapshotSuffix)
+			.Select(Path.GetFileName)
+			.Where(fileName => !expectedFiles.Contains(fileName!)))
+		{
+			File.Delete(Path.Combine(directory, stale!));
+			changed.Add(stale!);
+		}
+
+		return changed;
+	}
+
+	private static string Normalize(string text) => text.Replace("\r\n", "\n", StringComparison.Ordinal);
+
 	private static Compilation CreateCompilation()
 	{
 		return CSharpCompilation.Create(

tests/bunit.generators.tests/bunit.generators.tests.csproj

@@ -14,15 +14,19 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Verify.SourceGenerators" />
-		<PackageReference Include="Verify.XunitV3" />
 		<PackageReference Include="Microsoft.CodeAnalysis.CSharp" />
 		<PackageReference Include="Microsoft.CodeAnalysis.Common" />
 		<PackageReference Include="Microsoft.CodeAnalysis.Workspaces.Common" />
 		<PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" />
 		<PackageReference Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing" />
 	</ItemGroup>
 
+	<ItemGroup>
+		<Using Include="Xunit" />
+		<Compile Remove="**/*.verified.cs" />
+		<None Include="**/*.verified.cs" />
+	</ItemGroup>
+
 	<ItemGroup>
 		<ProjectReference Include="..\..\src\bunit.generators.internal\bunit.generators.internal.csproj" />
 		<ProjectReference Include="..\..\src\bunit.generators\bunit.generators.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" />