chore: publish from main

2026-08-26 18:45:12 +00:00 · 2026-08-26 00:23:08 +00:00
parent 17dc350145
commit fbee16ba71
4 changed files with 729 additions and 0 deletions
@@ -0,0 +1,70 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license.
+
+using System.Diagnostics.CodeAnalysis;
+using System.Threading.Tasks;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CodeFixes;
+using Microsoft.CodeAnalysis.CSharp.Testing;
+using Microsoft.CodeAnalysis.Diagnostics;
+using Microsoft.CodeAnalysis.Testing;
+
+namespace Product.Analyzers.Tests;
+
+/// <summary>
+/// Convenience methods for testing a C# analyzer and its code fix together.
+/// </summary>
+/// <typeparam name="TAnalyzer">The analyzer under test.</typeparam>
+/// <typeparam name="TCodeFix">The code fix under test, or <see cref="EmptyCodeFixProvider"/>.</typeparam>
+public static class CSharpCodeFixVerifier<TAnalyzer, TCodeFix>
+    where TAnalyzer : DiagnosticAnalyzer, new()
+    where TCodeFix : CodeFixProvider, new()
+{
+    public static DiagnosticResult Diagnostic()
+        => CSharpCodeFixVerifier<TAnalyzer, TCodeFix, DefaultVerifier>.Diagnostic();
+
+    public static DiagnosticResult Diagnostic(string diagnosticId)
+        => CSharpCodeFixVerifier<TAnalyzer, TCodeFix, DefaultVerifier>.Diagnostic(diagnosticId);
+
+    public static DiagnosticResult Diagnostic(DiagnosticDescriptor descriptor)
+        => new(descriptor);
+
+    public static Task VerifyAnalyzerAsync(
+        [StringSyntax("c#-test")] string source,
+        params DiagnosticResult[] expected)
+    {
+        var test = new CSharpCodeFixTest<TAnalyzer, TCodeFix, DefaultVerifier>
+        {
+            TestCode = source,
+        };
+
+        test.ExpectedDiagnostics.AddRange(expected);
+        return test.RunAsync();
+    }
+
+    public static Task VerifyCodeFixAsync(
+        [StringSyntax("c#-test")] string source,
+        [StringSyntax("c#-test")] string fixedSource)
+        => VerifyCodeFixAsync(source, DiagnosticResult.EmptyDiagnosticResults, fixedSource);
+
+    public static Task VerifyCodeFixAsync(
+        [StringSyntax("c#-test")] string source,
+        DiagnosticResult expected,
+        [StringSyntax("c#-test")] string fixedSource)
+        => VerifyCodeFixAsync(source, [expected], fixedSource);
+
+    public static Task VerifyCodeFixAsync(
+        [StringSyntax("c#-test")] string source,
+        DiagnosticResult[] expected,
+        [StringSyntax("c#-test")] string fixedSource)
+    {
+        var test = new CSharpCodeFixTest<TAnalyzer, TCodeFix, DefaultVerifier>
+        {
+            TestCode = source,
+            FixedCode = fixedSource,
+        };
+
+        test.ExpectedDiagnostics.AddRange(expected);
+        return test.RunAsync();
+    }
+}