Upgraded to .NET 10 (#1147)

app/Tests/Assistants/ERI/ERIServerFileListTests.cs

@@ -32,11 +32,11 @@ public sealed class ERIServerFileListTests
 
         var isRead = ERIServerFileList.TryParse(ANSWER, out var files);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(isRead, Is.True);
             Assert.That(files, Is.EqualTo(FILES));
-        });
+        }
     }
 
     [Test]
@@ -44,11 +44,11 @@ public sealed class ERIServerFileListTests
     {
         var isRead = ERIServerFileList.TryParse("""{ "files": [ "src\\main.py" ] }""", out var files);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(isRead, Is.True);
             Assert.That(files, Is.EqualTo(PATH_WITH_BACKSLASH));
-        });
+        }
     }
 
     [Test]
@@ -56,11 +56,11 @@ public sealed class ERIServerFileListTests
     {
         var isRead = ERIServerFileList.TryParse("""{ "files": [ "main.py", "", " " ] }""", out var files);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(isRead, Is.True);
             Assert.That(files, Is.EqualTo(MAIN_PY));
-        });
+        }
     }
 
     [TestCase("""[ "main.py" ]""", TestName = "A list without its object")]
@@ -73,10 +73,10 @@ public sealed class ERIServerFileListTests
     {
         var isRead = ERIServerFileList.TryParse(answer, out var files);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(isRead, Is.False);
             Assert.That(files, Is.Empty);
-        });
+        }
     }
 }

app/Tests/Assistants/ERI/ERIServerFileWritingTests.cs

@@ -45,11 +45,11 @@ public sealed class ERIServerFileWritingTests
     {
         var outcome = await ERIServerFiles.WriteAsync(this.baseDirectory, "src/my-server/main.py", ANSWER, NullLogger.Instance);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(outcome, Is.EqualTo(ERIServerFileOutcome.WRITTEN));
             Assert.That(File.ReadAllText(Path.Join(this.baseDirectory, "src", "my-server", "main.py")), Is.EqualTo(MAIN_PY));
-        });
+        }
     }
 
     [Test]
@@ -58,11 +58,11 @@ public sealed class ERIServerFileWritingTests
         var file = $"../outside-{Guid.NewGuid():N}.py";
         var outcome = await ERIServerFiles.WriteAsync(this.baseDirectory, file, ANSWER, NullLogger.Instance);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(outcome, Is.EqualTo(ERIServerFileOutcome.OUTSIDE_BASE_DIRECTORY));
             Assert.That(File.Exists(Path.GetFullPath(Path.Join(this.baseDirectory, file))), Is.False);
-        });
+        }
     }
 
     [Test]
@@ -70,11 +70,11 @@ public sealed class ERIServerFileWritingTests
     {
         var outcome = await ERIServerFiles.WriteAsync(this.baseDirectory, "main.py", "## main.py\n\n```python\nprint(", NullLogger.Instance);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(outcome, Is.EqualTo(ERIServerFileOutcome.NO_COMPLETE_CODE_BLOCK));
             Assert.That(File.Exists(Path.Join(this.baseDirectory, "main.py")), Is.False);
-        });
+        }
     }
 
     [Test]

app/Tests/Assistants/ERI/ERIServerPromptTests.cs

@@ -51,11 +51,11 @@ public sealed class ERIServerPromptTests
     {
         var lines = Lines(new ERIServerPrompt { AuthenticationMethods = [Auth.NONE, Auth.USERNAME_PASSWORD], AuthDescription = AUTH_DESCRIPTION });
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(lines, Does.Contain("The authentication process is planned as follows:"));
             Assert.That(lines, Does.Contain(AUTH_DESCRIPTION));
-        });
+        }
     }
 
     [Test]