Parameterize tests for multiple C# language versions

Sergio0694 · Sergio0694 · commit f8b7609e9e12 · 2026-03-16T17:37:02.000-07:00
Update unit tests to run against different C# language versions: add DataRow(LanguageVersion.Preview) to each test and, under ROSLYN_5_0_0_OR_GREATER, add DataRow(LanguageVersion.CSharp14). Change test methods to accept a LanguageVersion parameter and use it when constructing CSharpCodeFixTest (replace hardcoded LanguageVersion.Preview). Conditional compilation preserves compatibility with older Roslyn targets.
diff --git a/tests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4120.UnitTests/Test_UseObservablePropertyOnSemiAutoPropertyCodeFixer.cs b/tests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4120.UnitTests/Test_UseObservablePropertyOnSemiAutoPropertyCodeFixer.cs
@@ -22,7 +22,11 @@ namespace CommunityToolkit.Mvvm.SourceGenerators.UnitTests;
 public class Test_UseObservablePropertyOnSemiAutoPropertyCodeFixer
 {
     [TestMethod]
-    public async Task SimpleProperty()
+#if ROSLYN_5_0_0_OR_GREATER
+    [DataRow(LanguageVersion.CSharp14)]
+#endif
+    [DataRow(LanguageVersion.Preview)]
+    public async Task SimpleProperty(LanguageVersion languageVersion)
     {
         string original = """
             using CommunityToolkit.Mvvm.ComponentModel;
@@ -51,7 +55,7 @@ public partial class SampleViewModel : ObservableObject
             }
             """;
 
-        CSharpCodeFixTest test = new(LanguageVersion.Preview)
+        CSharpCodeFixTest test = new(languageVersion)
         {
             TestCode = original,
             FixedCode = @fixed,
@@ -75,7 +79,11 @@ public partial class SampleViewModel : ObservableObject
     }
 
     [TestMethod]
-    public async Task SimplePropertyWithBlockAccessorSyntax()
+#if ROSLYN_5_0_0_OR_GREATER
+    [DataRow(LanguageVersion.CSharp14)]
+#endif
+    [DataRow(LanguageVersion.Preview)]
+    public async Task SimplePropertyWithBlockAccessorSyntax(LanguageVersion languageVersion)
     {
         string original = """
             using CommunityToolkit.Mvvm.ComponentModel;
@@ -110,7 +118,7 @@ public partial class SampleViewModel : ObservableObject
             }
             """;
 
-        CSharpCodeFixTest test = new(LanguageVersion.Preview)
+        CSharpCodeFixTest test = new(languageVersion)
         {
             TestCode = original,
             FixedCode = @fixed,
@@ -134,7 +142,11 @@ public partial class SampleViewModel : ObservableObject
     }
 
     [TestMethod]
-    public async Task SimplePropertyWithNestedBlockSyntax()
+#if ROSLYN_5_0_0_OR_GREATER
+    [DataRow(LanguageVersion.CSharp14)]
+#endif
+    [DataRow(LanguageVersion.Preview)]
+    public async Task SimplePropertyWithNestedBlockSyntax(LanguageVersion languageVersion)
     {
         string original = """
             using CommunityToolkit.Mvvm.ComponentModel;
@@ -168,7 +180,7 @@ public partial class SampleViewModel : ObservableObject
             }
             """;
 
-        CSharpCodeFixTest test = new(LanguageVersion.Preview)
+        CSharpCodeFixTest test = new(languageVersion)
         {
             TestCode = original,
             FixedCode = @fixed,
@@ -192,7 +204,11 @@ public partial class SampleViewModel : ObservableObject
     }
 
     [TestMethod]
-    public async Task SimpleProperty_WithSemicolonTokenGetAccessor()
+#if ROSLYN_5_0_0_OR_GREATER
+    [DataRow(LanguageVersion.CSharp14)]
+#endif
+    [DataRow(LanguageVersion.Preview)]
+    public async Task SimpleProperty_WithSemicolonTokenGetAccessor(LanguageVersion languageVersion)
     {
         string original = """
             using CommunityToolkit.Mvvm.ComponentModel;
@@ -221,7 +237,7 @@ public partial class SampleViewModel : ObservableObject
             }
             """;
 
-        CSharpCodeFixTest test = new(LanguageVersion.Preview)
+        CSharpCodeFixTest test = new(languageVersion)
         {
             TestCode = original,
             FixedCode = @fixed,
@@ -245,7 +261,11 @@ public partial class SampleViewModel : ObservableObject
     }
 
     [TestMethod]
-    public async Task SimpleProperty_WithMissingUsingDirective()
+#if ROSLYN_5_0_0_OR_GREATER
+    [DataRow(LanguageVersion.CSharp14)]
+#endif
+    [DataRow(LanguageVersion.Preview)]
+    public async Task SimpleProperty_WithMissingUsingDirective(LanguageVersion languageVersion)
     {
         string original = """
             namespace MyApp;
@@ -272,7 +292,7 @@ public partial class SampleViewModel : CommunityToolkit.Mvvm.ComponentModel.Obse
             }
             """;
 
-        CSharpCodeFixTest test = new(LanguageVersion.Preview)
+        CSharpCodeFixTest test = new(languageVersion)
         {
             TestCode = original,
             FixedCode = @fixed,
@@ -296,7 +316,11 @@ public partial class SampleViewModel : CommunityToolkit.Mvvm.ComponentModel.Obse
     }
 
     [TestMethod]
-    public async Task SimpleProperty_WithLeadingTrivia()
+#if ROSLYN_5_0_0_OR_GREATER
+    [DataRow(LanguageVersion.CSharp14)]
+#endif
+    [DataRow(LanguageVersion.Preview)]
+    public async Task SimpleProperty_WithLeadingTrivia(LanguageVersion languageVersion)
     {
         string original = """
             using CommunityToolkit.Mvvm.ComponentModel;
@@ -331,7 +355,7 @@ public partial class SampleViewModel : ObservableObject
             }
             """;
 
-        CSharpCodeFixTest test = new(LanguageVersion.Preview)
+        CSharpCodeFixTest test = new(languageVersion)
         {
             TestCode = original,
             FixedCode = @fixed,
@@ -355,7 +379,11 @@ public partial class SampleViewModel : ObservableObject
     }
 
     [TestMethod]
-    public async Task SimpleProperty_WithLeadingTrivia_AndAttributes()
+#if ROSLYN_5_0_0_OR_GREATER
+    [DataRow(LanguageVersion.CSharp14)]
+#endif
+    [DataRow(LanguageVersion.Preview)]
+    public async Task SimpleProperty_WithLeadingTrivia_AndAttributes(LanguageVersion languageVersion)
     {
         string original = """
             using System;
@@ -400,7 +428,7 @@ public partial class SampleViewModel : ObservableObject
             public class TestAttribute(string text) : Attribute;
             """;
 
-        CSharpCodeFixTest test = new(LanguageVersion.Preview)
+        CSharpCodeFixTest test = new(languageVersion)
         {
             TestCode = original,
             FixedCode = @fixed,
@@ -424,7 +452,11 @@ public class TestAttribute(string text) : Attribute;
     }
 
     [TestMethod]
-    public async Task SimpleProperty_Multiple()
+#if ROSLYN_5_0_0_OR_GREATER
+    [DataRow(LanguageVersion.CSharp14)]
+#endif
+    [DataRow(LanguageVersion.Preview)]
+    public async Task SimpleProperty_Multiple(LanguageVersion languageVersion)
     {
         string original = """
             using CommunityToolkit.Mvvm.ComponentModel;
@@ -462,7 +494,7 @@ public partial class SampleViewModel : ObservableObject
             }
             """;
 
-        CSharpCodeFixTest test = new(LanguageVersion.Preview)
+        CSharpCodeFixTest test = new(languageVersion)
         {
             TestCode = original,
             FixedCode = @fixed,
@@ -492,7 +524,11 @@ public partial class SampleViewModel : ObservableObject
     }
 
     [TestMethod]
-    public async Task SimpleProperty_Multiple_OnlyTriggersOnFirstOne()
+#if ROSLYN_5_0_0_OR_GREATER
+    [DataRow(LanguageVersion.CSharp14)]
+#endif
+    [DataRow(LanguageVersion.Preview)]
+    public async Task SimpleProperty_Multiple_OnlyTriggersOnFirstOne(LanguageVersion languageVersion)
     {
         string original = """
             using CommunityToolkit.Mvvm.ComponentModel;
@@ -537,7 +573,7 @@ public string LastName
             }
             """;
 
-        CSharpCodeFixTest test = new(LanguageVersion.Preview)
+        CSharpCodeFixTest test = new(languageVersion)
         {
             TestCode = original,
             FixedCode = @fixed,
@@ -561,7 +597,11 @@ public string LastName
     }
 
     [TestMethod]
-    public async Task SimpleProperty_Multiple_OnlyTriggersOnSecondOne()
+#if ROSLYN_5_0_0_OR_GREATER
+    [DataRow(LanguageVersion.CSharp14)]
+#endif
+    [DataRow(LanguageVersion.Preview)]
+    public async Task SimpleProperty_Multiple_OnlyTriggersOnSecondOne(LanguageVersion languageVersion)
     {
         string original = """
             using CommunityToolkit.Mvvm.ComponentModel;
@@ -606,7 +646,7 @@ public string FirstName
             }
             """;
 
-        CSharpCodeFixTest test = new(LanguageVersion.Preview)
+        CSharpCodeFixTest test = new(languageVersion)
         {
             TestCode = original,
             FixedCode = @fixed,
@@ -630,7 +670,11 @@ public string FirstName
     }
 
     [TestMethod]
-    public async Task SimpleProperty_WithinPartialType()
+#if ROSLYN_5_0_0_OR_GREATER
+    [DataRow(LanguageVersion.CSharp14)]
+#endif
+    [DataRow(LanguageVersion.Preview)]
+    public async Task SimpleProperty_WithinPartialType(LanguageVersion languageVersion)
     {
         string original = """
             using CommunityToolkit.Mvvm.ComponentModel;
@@ -659,7 +703,7 @@ public partial class SampleViewModel : ObservableObject
             }
             """;
 
-        CSharpCodeFixTest test = new(LanguageVersion.Preview)
+        CSharpCodeFixTest test = new(languageVersion)
         {
             TestCode = original,
             FixedCode = @fixed,
@@ -683,7 +727,11 @@ public partial class SampleViewModel : ObservableObject
     }
 
     [TestMethod]
-    public async Task SimpleProperty_WithinPartialType_Multiple()
+#if ROSLYN_5_0_0_OR_GREATER
+    [DataRow(LanguageVersion.CSharp14)]
+#endif
+    [DataRow(LanguageVersion.Preview)]
+    public async Task SimpleProperty_WithinPartialType_Multiple(LanguageVersion languageVersion)
     {
         string original = """
             using CommunityToolkit.Mvvm.ComponentModel;
@@ -721,7 +769,7 @@ public partial class SampleViewModel : ObservableObject
             }
             """;
 
-        CSharpCodeFixTest test = new(LanguageVersion.Preview)
+        CSharpCodeFixTest test = new(languageVersion)
         {
             TestCode = original,
             FixedCode = @fixed,
@@ -751,7 +799,11 @@ public partial class SampleViewModel : ObservableObject
     }
 
     [TestMethod]
-    public async Task SimpleProperty_Multiple_WithMissingUsingDirective()
+#if ROSLYN_5_0_0_OR_GREATER
+    [DataRow(LanguageVersion.CSharp14)]
+#endif
+    [DataRow(LanguageVersion.Preview)]
+    public async Task SimpleProperty_Multiple_WithMissingUsingDirective(LanguageVersion languageVersion)
     {
         string original = """
             namespace MyApp;
@@ -796,7 +848,7 @@ public partial class SampleViewModel : CommunityToolkit.Mvvm.ComponentModel.Obse
             }
             """;
 
-        CSharpCodeFixTest test = new(LanguageVersion.Preview)
+        CSharpCodeFixTest test = new(languageVersion)
         {
             TestCode = original,
             FixedCode = @fixed,
@@ -832,7 +884,11 @@ public partial class SampleViewModel : CommunityToolkit.Mvvm.ComponentModel.Obse
     }
 
     [TestMethod]
-    public async Task SimpleProperty_WithinPartialType_Multiple_MixedScenario()
+#if ROSLYN_5_0_0_OR_GREATER
+    [DataRow(LanguageVersion.CSharp14)]
+#endif
+    [DataRow(LanguageVersion.Preview)]
+    public async Task SimpleProperty_WithinPartialType_Multiple_MixedScenario(LanguageVersion languageVersion)
     {
         string original = """
             using System;
@@ -945,7 +1001,7 @@ public partial class SampleViewModel : ObservableObject
             public class TestAttribute(string text) : Attribute;
             """;
 
-        CSharpCodeFixTest test = new(LanguageVersion.Preview)
+        CSharpCodeFixTest test = new(languageVersion)
         {
             TestCode = original,
             FixedCode = @fixed,

Original file line number	Diff line number	Diff line change
`@@ -22,7 +22,11 @@ namespace CommunityToolkit.Mvvm.SourceGenerators.UnitTests;`
`22`	`22`	`public class Test_UseObservablePropertyOnSemiAutoPropertyCodeFixer`
`23`	`23`	`{`
`24`	`24`	`[TestMethod]`
`25`		`- public async Task SimpleProperty()`
	`25`	`+#if ROSLYN_5_0_0_OR_GREATER`
	`26`	`+ [DataRow(LanguageVersion.CSharp14)]`
	`27`	`+#endif`
	`28`	`+ [DataRow(LanguageVersion.Preview)]`
	`29`	`+ public async Task SimpleProperty(LanguageVersion languageVersion)`
`26`	`30`	`{`
`27`	`31`	`string original = """`
`28`	`32`	`using CommunityToolkit.Mvvm.ComponentModel;`
`@@ -51,7 +55,7 @@ public partial class SampleViewModel : ObservableObject`
`51`	`55`	`}`
`52`	`56`	`""";`
`53`	`57`
`54`		`- CSharpCodeFixTest test = new(LanguageVersion.Preview)`
	`58`	`+ CSharpCodeFixTest test = new(languageVersion)`
`55`	`59`	`{`
`56`	`60`	`TestCode = original,`
`57`	`61`	`FixedCode = @fixed,`
`@@ -75,7 +79,11 @@ public partial class SampleViewModel : ObservableObject`
`75`	`79`	`}`
`76`	`80`
`77`	`81`	`[TestMethod]`
`78`		`- public async Task SimplePropertyWithBlockAccessorSyntax()`
	`82`	`+#if ROSLYN_5_0_0_OR_GREATER`
	`83`	`+ [DataRow(LanguageVersion.CSharp14)]`
	`84`	`+#endif`
	`85`	`+ [DataRow(LanguageVersion.Preview)]`
	`86`	`+ public async Task SimplePropertyWithBlockAccessorSyntax(LanguageVersion languageVersion)`
`79`	`87`	`{`
`80`	`88`	`string original = """`
`81`	`89`	`using CommunityToolkit.Mvvm.ComponentModel;`
`@@ -110,7 +118,7 @@ public partial class SampleViewModel : ObservableObject`
`110`	`118`	`}`
`111`	`119`	`""";`
`112`	`120`
`113`		`- CSharpCodeFixTest test = new(LanguageVersion.Preview)`
	`121`	`+ CSharpCodeFixTest test = new(languageVersion)`
`114`	`122`	`{`
`115`	`123`	`TestCode = original,`
`116`	`124`	`FixedCode = @fixed,`
`@@ -134,7 +142,11 @@ public partial class SampleViewModel : ObservableObject`
`134`	`142`	`}`
`135`	`143`
`136`	`144`	`[TestMethod]`
`137`		`- public async Task SimplePropertyWithNestedBlockSyntax()`
	`145`	`+#if ROSLYN_5_0_0_OR_GREATER`
	`146`	`+ [DataRow(LanguageVersion.CSharp14)]`
	`147`	`+#endif`
	`148`	`+ [DataRow(LanguageVersion.Preview)]`
	`149`	`+ public async Task SimplePropertyWithNestedBlockSyntax(LanguageVersion languageVersion)`
`138`	`150`	`{`
`139`	`151`	`string original = """`
`140`	`152`	`using CommunityToolkit.Mvvm.ComponentModel;`
`@@ -168,7 +180,7 @@ public partial class SampleViewModel : ObservableObject`
`168`	`180`	`}`
`169`	`181`	`""";`
`170`	`182`
`171`		`- CSharpCodeFixTest test = new(LanguageVersion.Preview)`
	`183`	`+ CSharpCodeFixTest test = new(languageVersion)`
`172`	`184`	`{`
`173`	`185`	`TestCode = original,`
`174`	`186`	`FixedCode = @fixed,`
`@@ -192,7 +204,11 @@ public partial class SampleViewModel : ObservableObject`
`192`	`204`	`}`
`193`	`205`
`194`	`206`	`[TestMethod]`
`195`		`- public async Task SimpleProperty_WithSemicolonTokenGetAccessor()`
	`207`	`+#if ROSLYN_5_0_0_OR_GREATER`
	`208`	`+ [DataRow(LanguageVersion.CSharp14)]`
	`209`	`+#endif`
	`210`	`+ [DataRow(LanguageVersion.Preview)]`
	`211`	`+ public async Task SimpleProperty_WithSemicolonTokenGetAccessor(LanguageVersion languageVersion)`
`196`	`212`	`{`
`197`	`213`	`string original = """`
`198`	`214`	`using CommunityToolkit.Mvvm.ComponentModel;`
`@@ -221,7 +237,7 @@ public partial class SampleViewModel : ObservableObject`
`221`	`237`	`}`
`222`	`238`	`""";`
`223`	`239`
`224`		`- CSharpCodeFixTest test = new(LanguageVersion.Preview)`
	`240`	`+ CSharpCodeFixTest test = new(languageVersion)`
`225`	`241`	`{`
`226`	`242`	`TestCode = original,`
`227`	`243`	`FixedCode = @fixed,`
`@@ -245,7 +261,11 @@ public partial class SampleViewModel : ObservableObject`
`245`	`261`	`}`
`246`	`262`
`247`	`263`	`[TestMethod]`
`248`		`- public async Task SimpleProperty_WithMissingUsingDirective()`
	`264`	`+#if ROSLYN_5_0_0_OR_GREATER`
	`265`	`+ [DataRow(LanguageVersion.CSharp14)]`
	`266`	`+#endif`
	`267`	`+ [DataRow(LanguageVersion.Preview)]`
	`268`	`+ public async Task SimpleProperty_WithMissingUsingDirective(LanguageVersion languageVersion)`
`249`	`269`	`{`
`250`	`270`	`string original = """`
`251`	`271`	`namespace MyApp;`
`@@ -272,7 +292,7 @@ public partial class SampleViewModel : CommunityToolkit.Mvvm.ComponentModel.Obse`
`272`	`292`	`}`
`273`	`293`	`""";`
`274`	`294`
`275`		`- CSharpCodeFixTest test = new(LanguageVersion.Preview)`
	`295`	`+ CSharpCodeFixTest test = new(languageVersion)`
`276`	`296`	`{`
`277`	`297`	`TestCode = original,`
`278`	`298`	`FixedCode = @fixed,`
`@@ -296,7 +316,11 @@ public partial class SampleViewModel : CommunityToolkit.Mvvm.ComponentModel.Obse`
`296`	`316`	`}`
`297`	`317`
`298`	`318`	`[TestMethod]`
`299`		`- public async Task SimpleProperty_WithLeadingTrivia()`
	`319`	`+#if ROSLYN_5_0_0_OR_GREATER`
	`320`	`+ [DataRow(LanguageVersion.CSharp14)]`
	`321`	`+#endif`
	`322`	`+ [DataRow(LanguageVersion.Preview)]`
	`323`	`+ public async Task SimpleProperty_WithLeadingTrivia(LanguageVersion languageVersion)`
`300`	`324`	`{`
`301`	`325`	`string original = """`
`302`	`326`	`using CommunityToolkit.Mvvm.ComponentModel;`
`@@ -331,7 +355,7 @@ public partial class SampleViewModel : ObservableObject`
`331`	`355`	`}`
`332`	`356`	`""";`
`333`	`357`
`334`		`- CSharpCodeFixTest test = new(LanguageVersion.Preview)`
	`358`	`+ CSharpCodeFixTest test = new(languageVersion)`
`335`	`359`	`{`
`336`	`360`	`TestCode = original,`
`337`	`361`	`FixedCode = @fixed,`
`@@ -355,7 +379,11 @@ public partial class SampleViewModel : ObservableObject`
`355`	`379`	`}`
`356`	`380`
`357`	`381`	`[TestMethod]`
`358`		`- public async Task SimpleProperty_WithLeadingTrivia_AndAttributes()`
	`382`	`+#if ROSLYN_5_0_0_OR_GREATER`
	`383`	`+ [DataRow(LanguageVersion.CSharp14)]`
	`384`	`+#endif`
	`385`	`+ [DataRow(LanguageVersion.Preview)]`
	`386`	`+ public async Task SimpleProperty_WithLeadingTrivia_AndAttributes(LanguageVersion languageVersion)`
`359`	`387`	`{`
`360`	`388`	`string original = """`
`361`	`389`	`using System;`
`@@ -400,7 +428,7 @@ public partial class SampleViewModel : ObservableObject`
`400`	`428`	`public class TestAttribute(string text) : Attribute;`
`401`	`429`	`""";`
`402`	`430`
`403`		`- CSharpCodeFixTest test = new(LanguageVersion.Preview)`
	`431`	`+ CSharpCodeFixTest test = new(languageVersion)`
`404`	`432`	`{`
`405`	`433`	`TestCode = original,`
`406`	`434`	`FixedCode = @fixed,`
`@@ -424,7 +452,11 @@ public class TestAttribute(string text) : Attribute;`
`424`	`452`	`}`
`425`	`453`
`426`	`454`	`[TestMethod]`
`427`		`- public async Task SimpleProperty_Multiple()`
	`455`	`+#if ROSLYN_5_0_0_OR_GREATER`
	`456`	`+ [DataRow(LanguageVersion.CSharp14)]`
	`457`	`+#endif`
	`458`	`+ [DataRow(LanguageVersion.Preview)]`
	`459`	`+ public async Task SimpleProperty_Multiple(LanguageVersion languageVersion)`
`428`	`460`	`{`
`429`	`461`	`string original = """`
`430`	`462`	`using CommunityToolkit.Mvvm.ComponentModel;`
`@@ -462,7 +494,7 @@ public partial class SampleViewModel : ObservableObject`
`462`	`494`	`}`
`463`	`495`	`""";`
`464`	`496`
`465`		`- CSharpCodeFixTest test = new(LanguageVersion.Preview)`
	`497`	`+ CSharpCodeFixTest test = new(languageVersion)`
`466`	`498`	`{`
`467`	`499`	`TestCode = original,`
`468`	`500`	`FixedCode = @fixed,`
`@@ -492,7 +524,11 @@ public partial class SampleViewModel : ObservableObject`
`492`	`524`	`}`
`493`	`525`
`494`	`526`	`[TestMethod]`
`495`		`- public async Task SimpleProperty_Multiple_OnlyTriggersOnFirstOne()`
	`527`	`+#if ROSLYN_5_0_0_OR_GREATER`
	`528`	`+ [DataRow(LanguageVersion.CSharp14)]`
	`529`	`+#endif`
	`530`	`+ [DataRow(LanguageVersion.Preview)]`
	`531`	`+ public async Task SimpleProperty_Multiple_OnlyTriggersOnFirstOne(LanguageVersion languageVersion)`
`496`	`532`	`{`
`497`	`533`	`string original = """`
`498`	`534`	`using CommunityToolkit.Mvvm.ComponentModel;`
`@@ -537,7 +573,7 @@ public string LastName`
`537`	`573`	`}`
`538`	`574`	`""";`
`539`	`575`
`540`		`- CSharpCodeFixTest test = new(LanguageVersion.Preview)`
	`576`	`+ CSharpCodeFixTest test = new(languageVersion)`
`541`	`577`	`{`
`542`	`578`	`TestCode = original,`
`543`	`579`	`FixedCode = @fixed,`
`@@ -561,7 +597,11 @@ public string LastName`
`561`	`597`	`}`
`562`	`598`
`563`	`599`	`[TestMethod]`
`564`		`- public async Task SimpleProperty_Multiple_OnlyTriggersOnSecondOne()`
	`600`	`+#if ROSLYN_5_0_0_OR_GREATER`
	`601`	`+ [DataRow(LanguageVersion.CSharp14)]`
	`602`	`+#endif`
	`603`	`+ [DataRow(LanguageVersion.Preview)]`
	`604`	`+ public async Task SimpleProperty_Multiple_OnlyTriggersOnSecondOne(LanguageVersion languageVersion)`
`565`	`605`	`{`
`566`	`606`	`string original = """`
`567`	`607`	`using CommunityToolkit.Mvvm.ComponentModel;`
`@@ -606,7 +646,7 @@ public string FirstName`
`606`	`646`	`}`
`607`	`647`	`""";`
`608`	`648`
`609`		`- CSharpCodeFixTest test = new(LanguageVersion.Preview)`
	`649`	`+ CSharpCodeFixTest test = new(languageVersion)`
`610`	`650`	`{`
`611`	`651`	`TestCode = original,`
`612`	`652`	`FixedCode = @fixed,`
`@@ -630,7 +670,11 @@ public string FirstName`
`630`	`670`	`}`
`631`	`671`
`632`	`672`	`[TestMethod]`
`633`		`- public async Task SimpleProperty_WithinPartialType()`
	`673`	`+#if ROSLYN_5_0_0_OR_GREATER`
	`674`	`+ [DataRow(LanguageVersion.CSharp14)]`
	`675`	`+#endif`
	`676`	`+ [DataRow(LanguageVersion.Preview)]`
	`677`	`+ public async Task SimpleProperty_WithinPartialType(LanguageVersion languageVersion)`
`634`	`678`	`{`
`635`	`679`	`string original = """`
`636`	`680`	`using CommunityToolkit.Mvvm.ComponentModel;`
`@@ -659,7 +703,7 @@ public partial class SampleViewModel : ObservableObject`
`659`	`703`	`}`
`660`	`704`	`""";`
`661`	`705`
`662`		`- CSharpCodeFixTest test = new(LanguageVersion.Preview)`
	`706`	`+ CSharpCodeFixTest test = new(languageVersion)`
`663`	`707`	`{`
`664`	`708`	`TestCode = original,`
`665`	`709`	`FixedCode = @fixed,`
`@@ -683,7 +727,11 @@ public partial class SampleViewModel : ObservableObject`
`683`	`727`	`}`
`684`	`728`
`685`	`729`	`[TestMethod]`
`686`		`- public async Task SimpleProperty_WithinPartialType_Multiple()`
	`730`	`+#if ROSLYN_5_0_0_OR_GREATER`
	`731`	`+ [DataRow(LanguageVersion.CSharp14)]`
	`732`	`+#endif`
	`733`	`+ [DataRow(LanguageVersion.Preview)]`
	`734`	`+ public async Task SimpleProperty_WithinPartialType_Multiple(LanguageVersion languageVersion)`
`687`	`735`	`{`
`688`	`736`	`string original = """`
`689`	`737`	`using CommunityToolkit.Mvvm.ComponentModel;`
`@@ -721,7 +769,7 @@ public partial class SampleViewModel : ObservableObject`
`721`	`769`	`}`
`722`	`770`	`""";`
`723`	`771`
`724`		`- CSharpCodeFixTest test = new(LanguageVersion.Preview)`
	`772`	`+ CSharpCodeFixTest test = new(languageVersion)`
`725`	`773`	`{`
`726`	`774`	`TestCode = original,`
`727`	`775`	`FixedCode = @fixed,`
`@@ -751,7 +799,11 @@ public partial class SampleViewModel : ObservableObject`
`751`	`799`	`}`
`752`	`800`
`753`	`801`	`[TestMethod]`
`754`		`- public async Task SimpleProperty_Multiple_WithMissingUsingDirective()`
	`802`	`+#if ROSLYN_5_0_0_OR_GREATER`
	`803`	`+ [DataRow(LanguageVersion.CSharp14)]`
	`804`	`+#endif`
	`805`	`+ [DataRow(LanguageVersion.Preview)]`
	`806`	`+ public async Task SimpleProperty_Multiple_WithMissingUsingDirective(LanguageVersion languageVersion)`
`755`	`807`	`{`
`756`	`808`	`string original = """`
`757`	`809`	`namespace MyApp;`
`@@ -796,7 +848,7 @@ public partial class SampleViewModel : CommunityToolkit.Mvvm.ComponentModel.Obse`
`796`	`848`	`}`
`797`	`849`	`""";`
`798`	`850`
`799`		`- CSharpCodeFixTest test = new(LanguageVersion.Preview)`
	`851`	`+ CSharpCodeFixTest test = new(languageVersion)`
`800`	`852`	`{`
`801`	`853`	`TestCode = original,`
`802`	`854`	`FixedCode = @fixed,`
`@@ -832,7 +884,11 @@ public partial class SampleViewModel : CommunityToolkit.Mvvm.ComponentModel.Obse`
`832`	`884`	`}`
`833`	`885`
`834`	`886`	`[TestMethod]`
`835`		`- public async Task SimpleProperty_WithinPartialType_Multiple_MixedScenario()`
	`887`	`+#if ROSLYN_5_0_0_OR_GREATER`
	`888`	`+ [DataRow(LanguageVersion.CSharp14)]`
	`889`	`+#endif`
	`890`	`+ [DataRow(LanguageVersion.Preview)]`
	`891`	`+ public async Task SimpleProperty_WithinPartialType_Multiple_MixedScenario(LanguageVersion languageVersion)`
`836`	`892`	`{`
`837`	`893`	`string original = """`
`838`	`894`	`using System;`
`@@ -945,7 +1001,7 @@ public partial class SampleViewModel : ObservableObject`
`945`	`1001`	`public class TestAttribute(string text) : Attribute;`
`946`	`1002`	`""";`
`947`	`1003`
`948`		`- CSharpCodeFixTest test = new(LanguageVersion.Preview)`
	`1004`	`+ CSharpCodeFixTest test = new(languageVersion)`
`949`	`1005`	`{`
`950`	`1006`	`TestCode = original,`
`951`	`1007`	`FixedCode = @fixed,`