Upgraded to .NET 10 (#1147)

app/Tests/Chat/ConversationPartsTests.cs

@@ -53,12 +53,12 @@ public sealed class ConversationPartsTests
 
         var parts = ConversationParts.Of(thread, "You are helpful.", "And of Italy?", null, imagesAreSent: true, toolDefinitions: null);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(parts.Texts, Is.EqualTo(new[] { "You are helpful.", "What is the capital of France?", "Paris." }));
             Assert.That(parts.DraftText, Is.EqualTo("And of Italy?"));
             Assert.That(parts.GrowingTexts, Is.Empty, "The draft is a part of its own, and it stands nowhere else.");
-        });
+        }
     }
 
     [Test]
@@ -75,12 +75,12 @@ public sealed class ConversationPartsTests
 
         var parts = ConversationParts.Of(thread, string.Empty, "a draft", null, imagesAreSent: true, toolDefinitions: null);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(parts.Texts, Is.EqualTo(new[] { "A question." }));
             Assert.That(parts.GrowingTexts, Is.EqualTo(new[] { "The answer so far" }));
             Assert.That(parts.DraftText, Is.EqualTo("a draft"));
-        });
+        }
     }
 
     [Test]
@@ -91,11 +91,11 @@ public sealed class ConversationPartsTests
 
         var parts = ConversationParts.Of(new() { Blocks = [finished] }, string.Empty, string.Empty, null, imagesAreSent: true, toolDefinitions: null);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(parts.Texts, Is.EqualTo(new[] { "The whole answer." }));
             Assert.That(parts.GrowingTexts, Is.Empty);
-        });
+        }
     }
 
     [Test]
@@ -134,11 +134,11 @@ public sealed class ConversationPartsTests
     {
         var parts = ConversationParts.Of(null, string.Empty, "Hello", null, imagesAreSent: true, toolDefinitions: null);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(parts.Texts, Is.Empty);
             Assert.That(parts.DraftText, Is.EqualTo("Hello"));
-        });
+        }
     }
 
     [TestCase("")]
@@ -147,12 +147,12 @@ public sealed class ConversationPartsTests
     {
         var parts = ConversationParts.Of(null, string.Empty, draft, null, imagesAreSent: true, toolDefinitions: null);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(parts.Texts, Is.Empty);
             Assert.That(parts.GrowingTexts, Is.Empty);
             Assert.That(parts.DraftText, Is.Empty);
-        });
+        }
     }
 
     [Test]
@@ -169,11 +169,11 @@ public sealed class ConversationPartsTests
 
         var parts = ConversationParts.Of(new() { Blocks = [empty] }, string.Empty, string.Empty, null, imagesAreSent: true, toolDefinitions: null);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(parts.Texts, Is.Empty);
             Assert.That(parts.Documents, Is.Empty);
-        });
+        }
     }
 
     [Test]
@@ -191,11 +191,11 @@ public sealed class ConversationPartsTests
 
         var parts = ConversationParts.Of(new() { Blocks = [block] }, string.Empty, "And this one.", [FileAttachment.FromPath(draft)], imagesAreSent: true, toolDefinitions: null);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(parts.Documents.Select(document => document.FileName), Is.EqualTo(new[] { "older.txt" }));
             Assert.That(parts.DraftDocuments.Select(document => document.FileName), Is.EqualTo(new[] { "draft.txt" }), "Both count, each in the part it belongs to.");
-        });
+        }
     }
 
     [Test]
@@ -219,11 +219,11 @@ public sealed class ConversationPartsTests
 
         var parts = ConversationParts.Of(null, string.Empty, "Look", [FileAttachment.FromPath(document), FileAttachment.FromPath(image)], imagesAreSent: true, toolDefinitions: null);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(parts.DraftDocuments.Select(entry => entry.FileName), Is.EqualTo(new[] { "notes.txt" }));
             Assert.That(parts.DraftImages, Is.EqualTo(1));
-        });
+        }
     }
 
     [Test]
@@ -240,11 +240,11 @@ public sealed class ConversationPartsTests
 
         var parts = ConversationParts.Of(new() { Blocks = [block] }, string.Empty, "And at this.", [FileAttachment.FromPath(waiting)], imagesAreSent: true, toolDefinitions: null);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(parts.Images, Is.EqualTo(1));
             Assert.That(parts.DraftImages, Is.EqualTo(1));
-        });
+        }
     }
 
     [Test]
@@ -275,12 +275,12 @@ public sealed class ConversationPartsTests
 
         var parts = ConversationParts.Of(new() { Blocks = [running] }, string.Empty, string.Empty, null, imagesAreSent: true, toolDefinitions: null);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(parts.Texts, Is.Empty);
             Assert.That(parts.ToolConversation, Is.EqualTo(new[] { "What the web search found.", "What the page said." }));
             Assert.That(parts.GrowingTexts, Is.Empty, "The tool conversation is a part of its own, so that its share can be named.");
-        });
+        }
     }
 
     [Test]
@@ -314,11 +314,11 @@ public sealed class ConversationPartsTests
 
         var parts = ConversationParts.Of(new() { Blocks = [answered] }, string.Empty, string.Empty, null, imagesAreSent: true, toolDefinitions: null);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(parts.Texts, Is.EqualTo(new[] { "Here is what I found." }));
             Assert.That(parts.ToolConversation, Is.Empty);
-        });
+        }
     }
 
     [Test]
@@ -335,7 +335,7 @@ public sealed class ConversationPartsTests
             Tool("read_web_page", "Reads one page.", """{"type":"string"}"""),
         ]);
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(parts.Texts, Is.EqualTo(new[]
             {
@@ -344,7 +344,7 @@ public sealed class ConversationPartsTests
             }));
 
             Assert.That(parts.GrowingTexts, Is.Empty);
-        });
+        }
     }
 
     [Test]