XML Serialization in C#: retarget to .NET 10 and run the examples from Program.cs

xml-csharp/XMLSerializationInCsharp/XMLSerializationInCsharp/Program.cs

@@ -1,13 +1,43 @@
 using System;
+using System.IO;
+using System.Text;
+using System.Xml;
+using System.Xml.Serialization;
+using XMLSerializationInCsharp_v1;
 
-namespace XMLSerializationInCsharp
+var patient = new Patient()
 {
+    ID = 232323,
+    FirstName = "John",
+    LastName = "Doe",
+    Birthday = new DateTime(1990, 12, 30),
+    RoomNo = 310
+};
 
-    class Program
-    {
-        static void Main(string[] args)
-        {
-            Console.Write("hello world");
-        }
-    }
+// The article's first example: a StreamWriter over a file.
+var serializer = new XmlSerializer(typeof(Patient));
+using (var writer = new StreamWriter("patients.xml"))
+{
+    serializer.Serialize(writer, patient);
 }
+
+Console.WriteLine(File.ReadAllText("patients.xml"));
+Console.WriteLine();
+
+// The article's last example: an XmlWriter with indentation, UTF-8 without a byte order mark,
+// and no xmlns:xsi or xmlns:xsd declarations on the root element.
+var namespaces = new XmlSerializerNamespaces();
+namespaces.Add(string.Empty, string.Empty);
+
+var settings = new XmlWriterSettings
+{
+    Indent = true,
+    Encoding = new UTF8Encoding(false)
+};
+
+using (var xmlWriter = XmlWriter.Create("patient.xml", settings))
+{
+    serializer.Serialize(xmlWriter, patient, namespaces);
+}
+
+Console.WriteLine(File.ReadAllText("patient.xml"));

xml-csharp/XMLSerializationInCsharp/XMLSerializationInCsharp/XMLSerializationInCsharp.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
   </PropertyGroup>
 
 </Project>

xml-csharp/XMLSerializationInCsharp/XMLSerializationInCsharpTests/XMLSerializationInCsharpTests.csproj

@@ -1,16 +1,16 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
-    <PackageReference Include="NUnit" Version="3.13.1" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.17.0" />
-    <PackageReference Include="coverlet.collector" Version="3.0.2" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.10.1" />
+    <PackageReference Include="NUnit" Version="5.0.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="6.3.1" />
+    <PackageReference Include="coverlet.collector" Version="10.1.0" />
   </ItemGroup>
 
   <ItemGroup>

xml-csharp/XMLSerializationInCsharp/XMLSerializationInCsharpTests/XMLSerializationUnitTest_v6.cs

@@ -0,0 +1,59 @@
+using NUnit.Framework;
+using System;
+using System.IO;
+using System.Text;
+using System.Xml;
+using System.Xml.Serialization;
+using XMLSerializationInCsharp_v1;
+
+namespace XMLSerializationInCsharpTests
+{
+    public class XMLSerializationUnitTest_v6
+    {
+        string xml = @"<?xml version=""1.0"" encoding=""utf-8""?>
+<Patient>
+  <ID>232323</ID>
+  <FirstName>John</FirstName>
+  <LastName>Doe</LastName>
+  <Birthday>1990-12-30T00:00:00</Birthday>
+  <RoomNo>310</RoomNo>
+</Patient>";
+
+        [Test]
+        public void WhenSerializingWithXmlWriterSettingsAndEmptyNamespaces_ThenNoNamespacesAndUtf8Declaration()
+        {
+            var patient = new Patient()
+            {
+                ID = 232323,
+                FirstName = "John",
+                LastName = "Doe",
+                Birthday = new DateTime(1990, 12, 30),
+                RoomNo = 310
+            };
+
+            var namespaces = new XmlSerializerNamespaces();
+            namespaces.Add(string.Empty, string.Empty);
+
+            var settings = new XmlWriterSettings
+            {
+                Indent = true,
+                Encoding = new UTF8Encoding(false)
+            };
+
+            var serializer = new XmlSerializer(typeof(Patient));
+            using var stream = new MemoryStream();
+            using (var writer = XmlWriter.Create(stream, settings))
+            {
+                serializer.Serialize(writer, patient, namespaces);
+            }
+
+            var bytes = stream.ToArray();
+            var result = Encoding.UTF8.GetString(bytes);
+
+            Assert.That(bytes[0], Is.EqualTo((byte)'<'), "UTF8Encoding(false) writes no byte order mark");
+            Assert.That(result, Does.Not.Contain("xmlns:xsi"));
+            Assert.That(result, Does.Not.Contain("xmlns:xsd"));
+            Assert.That(result.Replace("\r\n", "\n"), Is.EqualTo(xml.Replace("\r\n", "\n")));
+        }
+    }
+}