chore(InternalTests): add failing test cases

Author: razzmatazz

tests/CSharpLanguageServer.Tests/InternalTests.fs

@@ -5,7 +5,6 @@ open NUnit.Framework
 
 open CSharpLanguageServer.Roslyn.Solution
 
-
 [<TestCase("1.csproj:net8.0", "net8.0")>]
 [<TestCase("1.csproj:net8.0,net10.0", "net10.0")>]
 [<TestCase("1.csproj:net8.0,netstandard2.0", "net8.0")>]
@@ -16,6 +15,8 @@ open CSharpLanguageServer.Roslyn.Solution
 [<TestCase("1.csproj:net8.0,net10.0 2.csproj:netstandard2.0,net462", null)>]
 [<TestCase("1.csproj:net8.0,net10.0 2.csproj:net8.0,net10.0", "net10.0")>]
 [<TestCase("1.csproj:net8.0 2.csproj:net8.0,net10.0", "net8.0")>]
+[<TestCase("1.csproj:net8.0 2.csproj:net9.0-windows", "net9.0-windows")>]
+[<TestCase("1.csproj:net9.0 2.csproj:net9.0-windows", "net9.0-windows")>]
 let testApplyWorkspaceTargetFrameworkProp (tfmList: string, expectedTfm: string | null) =
 
     let parseTfmList (projectEntry: string) : string * list<string> =
@@ -38,7 +39,6 @@ let testApplyWorkspaceTargetFrameworkProp (tfmList: string, expectedTfm: string
 
     Assert.AreEqual(expectedTfm |> Option.ofObj, props |> Map.tryFind "TargetFramework")
 
-
 [<TestCase>]
 let testApplyWorkspaceTargetFrameworkPropWithEmptyMap () =
     let props = Map.empty |> applyWorkspaceTargetFrameworkProp Map.empty