Fix test

Author: MattKotsenas

tests/Aspire.Hosting.Tests/MSBuildTests.cs

@@ -240,10 +240,13 @@ await Verify(new
             App = appMetadata
         }).ScrubLinesWithReplace(line =>
             {
-                var temp = tempDirectory?.Path;
+                var temp = tempDirectory?.Directory?.Name;
                 if (temp is not null)
                 {
-                    line = line.Replace(temp, "{AspirePath}");
+                    if (line.Contains(temp))
+                    {
+                        line = line.Replace(temp, "{AspirePath}").Replace(Path.DirectorySeparatorChar, '/');
+                    }
                 }
                 return line;
             });

tests/Aspire.Hosting.Tests/Snapshots/MSBuildTests.ValidateMetadataSources.verified.txt

@@ -4,39 +4,43 @@
 
 namespace Projects;
 
+#pragma warning disable CS8981 // The type name only contains lower-cased ascii characters. Such names may become reserved for the language.
 /// <summary>
 /// Metadata for the Aspire Host project.
 /// </summary>
 [global::System.CodeDom.Compiler.GeneratedCode("Aspire.Hosting", null)]
 [global::System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage(Justification = "Generated code.")]
 [global::System.Diagnostics.DebuggerDisplay("Type = {GetType().Name,nq}, ProjectPath = {ProjectPath}")]
 public class AppHost
+#pragma warning restore CS8981
 {
     private AppHost() { }
 
     /// <summary>
     /// The path to the Aspire Host project.
     /// </summary>
-    public static string ProjectPath => """{AspirePath}\AppHost""";
+    public static string ProjectPath => """{TempPath}{AspirePath}/AppHost""";
 }
 ,
   App:
 // <auto-generated/>
 
 namespace Projects;
 
+#pragma warning disable CS8981 // The type name only contains lower-cased ascii characters. Such names may become reserved for the language.
 /// <summary>
 /// Metadata for the App project.
 /// </summary>
 [global::System.CodeDom.Compiler.GeneratedCode("Aspire.Hosting", null)]
 [global::System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage(Justification = "Generated code.")]
 [global::System.Diagnostics.DebuggerDisplay("Type = {GetType().Name,nq}, ProjectPath = {ProjectPath}")]
 public class App : global::Aspire.Hosting.IProjectMetadata
+#pragma warning restore CS8981
 {
     /// <summary>
     /// The path to the App project.
     /// </summary>
-    public string ProjectPath => """{AspirePath}\App\App.csproj""";
+    public string ProjectPath => """{TempPath}{AspirePath}/App/App.csproj""";
 }
 
 }

tests/Shared/TempDirectory.cs

@@ -3,13 +3,15 @@
 
 public sealed class TempDirectory : IDisposable
 {
-    public string Path { get; } = Directory.CreateTempSubdirectory(".aspire-tests").FullName;
+    public string Path => Directory.FullName;
+
+    public DirectoryInfo Directory { get; } = System.IO.Directory.CreateTempSubdirectory(".aspire-tests");
 
     public void Dispose()
     {
         try
         {
-            Directory.Delete(Path, recursive: true);
+            System.IO.Directory.Delete(Path, recursive: true);
         }
         catch { } // Ignore errors during cleanup
     }