From 7f57e6c78f919143e17800e8e9e8ecef517ccfb8 Mon Sep 17 00:00:00 2001
From: Sergio Pedri <sergio0694@live.com>
Date: Wed, 11 Dec 2024 20:20:05 -0800
Subject: [PATCH] Add basic code fixer test

---
 ...ndencyPropertyOnManualPropertyCodeFixer.cs |  2 +-
 ...t.DependencyPropertyGenerator.Tests.csproj |  1 +
 ...ndencyPropertyOnManualPropertyCodeFixer.cs | 86 +++++++++++++++++++
 3 files changed, 88 insertions(+), 1 deletion(-)
 create mode 100644 components/DependencyPropertyGenerator/CommunityToolkit.DependencyPropertyGenerator.Tests/Test_UseGeneratedDependencyPropertyOnManualPropertyCodeFixer.cs

diff --git a/components/DependencyPropertyGenerator/CommunityToolkit.DependencyPropertyGenerator.CodeFixers/UseGeneratedDependencyPropertyOnManualPropertyCodeFixer.cs b/components/DependencyPropertyGenerator/CommunityToolkit.DependencyPropertyGenerator.CodeFixers/UseGeneratedDependencyPropertyOnManualPropertyCodeFixer.cs
index 3b1ca0133..d9f15e63a 100644
--- a/components/DependencyPropertyGenerator/CommunityToolkit.DependencyPropertyGenerator.CodeFixers/UseGeneratedDependencyPropertyOnManualPropertyCodeFixer.cs
+++ b/components/DependencyPropertyGenerator/CommunityToolkit.DependencyPropertyGenerator.CodeFixers/UseGeneratedDependencyPropertyOnManualPropertyCodeFixer.cs
@@ -20,7 +20,7 @@
 using static CommunityToolkit.GeneratedDependencyProperty.Diagnostics.DiagnosticDescriptors;
 using static Microsoft.CodeAnalysis.CSharp.SyntaxFactory;
 
-namespace CommunityToolkit.Mvvm.CodeFixers;
+namespace CommunityToolkit.GeneratedDependencyProperty;
 
 /// <summary>
 /// A code fixer that converts manual properties into partial properties using <c>[GeneratedDependencytProperty]</c>.
diff --git a/components/DependencyPropertyGenerator/CommunityToolkit.DependencyPropertyGenerator.Tests/CommunityToolkit.DependencyPropertyGenerator.Tests.csproj b/components/DependencyPropertyGenerator/CommunityToolkit.DependencyPropertyGenerator.Tests/CommunityToolkit.DependencyPropertyGenerator.Tests.csproj
index 5b4fbb504..ea88d28b9 100644
--- a/components/DependencyPropertyGenerator/CommunityToolkit.DependencyPropertyGenerator.Tests/CommunityToolkit.DependencyPropertyGenerator.Tests.csproj
+++ b/components/DependencyPropertyGenerator/CommunityToolkit.DependencyPropertyGenerator.Tests/CommunityToolkit.DependencyPropertyGenerator.Tests.csproj
@@ -24,6 +24,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <ProjectReference Include="..\CommunityToolkit.DependencyPropertyGenerator.CodeFixers\CommunityToolkit.DependencyPropertyGenerator.CodeFixers.csproj" />
     <ProjectReference Include="..\CommunityToolkit.DependencyPropertyGenerator.SourceGenerators\CommunityToolkit.DependencyPropertyGenerator.SourceGenerators.csproj" />
     <ProjectReference Include="..\src\CommunityToolkit.WinUI.DependencyPropertyGenerator.csproj" />
   </ItemGroup>
diff --git a/components/DependencyPropertyGenerator/CommunityToolkit.DependencyPropertyGenerator.Tests/Test_UseGeneratedDependencyPropertyOnManualPropertyCodeFixer.cs b/components/DependencyPropertyGenerator/CommunityToolkit.DependencyPropertyGenerator.Tests/Test_UseGeneratedDependencyPropertyOnManualPropertyCodeFixer.cs
new file mode 100644
index 000000000..9e6d81b9f
--- /dev/null
+++ b/components/DependencyPropertyGenerator/CommunityToolkit.DependencyPropertyGenerator.Tests/Test_UseGeneratedDependencyPropertyOnManualPropertyCodeFixer.cs
@@ -0,0 +1,86 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Threading.Tasks;
+using CommunityToolkit.WinUI;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp;
+using Microsoft.CodeAnalysis.Testing;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Windows.UI.ViewManagement;
+using Windows.UI.Xaml;
+using CSharpCodeFixTest = CommunityToolkit.GeneratedDependencyProperty.Tests.Helpers.CSharpCodeFixTest<
+    CommunityToolkit.GeneratedDependencyProperty.UseGeneratedDependencyPropertyOnManualPropertyAnalyzer,
+    CommunityToolkit.GeneratedDependencyProperty.UseGeneratedDependencyPropertyOnManualPropertyCodeFixer>;
+using VerifyCS = Microsoft.CodeAnalysis.CSharp.Testing.CSharpCodeFixVerifier<
+    CommunityToolkit.GeneratedDependencyProperty.UseGeneratedDependencyPropertyOnManualPropertyAnalyzer,
+    CommunityToolkit.GeneratedDependencyProperty.UseGeneratedDependencyPropertyOnManualPropertyCodeFixer,
+    Microsoft.CodeAnalysis.Testing.DefaultVerifier>;
+
+namespace CommunityToolkit.GeneratedDependencyProperty.Tests;
+
+[TestClass]
+public class Test_UseGeneratedDependencyPropertyOnManualPropertyCodeFixer
+{
+    [TestMethod]
+    [DataRow("string", "string")]
+    [DataRow("string", "string?")]
+    [DataRow("object", "object")]
+    [DataRow("object", "object?")]
+    [DataRow("int", "int")]
+    [DataRow("int?", "int?")]
+    public async Task SimpleProperty(string underlyingType, string propertyType)
+    {
+        string original = $$"""
+            using Windows.UI.Xaml;
+            using Windows.UI.Xaml.Controls;
+
+            namespace MyApp;
+
+            public class MyControl : Control
+            {
+                public static readonly DependencyProperty NameProperty = DependencyProperty.Register(
+                    name: nameof(Name),
+                    propertyType: typeof({{underlyingType}}),
+                    ownerType: typeof(MyControl),
+                    typeMetadata: null);
+
+                public {{propertyType}} [|Name|]
+                {
+                    get => ({{propertyType}})GetValue(NameProperty);
+                    set => SetValue(NameProperty, value);
+                }
+            }
+            """;
+
+        string @fixed = $$"""
+            using CommunityToolkit.WinUI;
+            using Windows.UI.Xaml;
+            using Windows.UI.Xaml.Controls;
+
+            namespace MyApp;
+
+            public partial class MyControl : Control
+            {
+                [GeneratedDependencyProperty]
+                public partial {{propertyType}} {|CS9248:Name|} { get; set; }
+            }
+            """;
+
+        CSharpCodeFixTest test = new(LanguageVersion.Preview)
+        {
+            TestCode = original,
+            FixedCode = @fixed,
+            ReferenceAssemblies = ReferenceAssemblies.Net.Net80,
+            TestState = { AdditionalReferences =
+            {
+                MetadataReference.CreateFromFile(typeof(ApplicationView).Assembly.Location),
+                MetadataReference.CreateFromFile(typeof(DependencyProperty).Assembly.Location),
+                MetadataReference.CreateFromFile(typeof(GeneratedDependencyPropertyAttribute).Assembly.Location)
+            }}
+        };
+
+        await test.RunAsync();
+    }
+}