[Test]
public void Constructor()
{
    var root = new XmlData("name");
    Assert.AreEqual("name", root.Name);
    Assert.AreEqual(0, root.Children.Count);
    Assert.AreEqual(0, root.Attributes.Count);
}

[Test]
public void Constructor()
{
    var root = new XmlData("name");
    Assert.AreEqual("name", root.Name);
    Assert.AreEqual(0, root.Children.Count);
    Assert.AreEqual(0, root.Attributes.Count);
}

[Test]
public void InvalidName()
{
    Assert.Throws<XmlData.InvalidXmlNameException>(() => new XmlData(null));
    Assert.Throws<XmlData.InvalidXmlNameException>(() => new XmlData("Hello World"));
}

[Test]
public void InvalidName()
{
    Assert.Throws<XmlData.InvalidXmlNameException>(() => new XmlData(null));
    Assert.Throws<XmlData.InvalidXmlNameException>(() => new XmlData("Hello World"));
}

[Test]
public void GetChild()
{
    var root = new XmlData("root");
    root.AddChild(new XmlData("child1"));
    var child2 = new XmlData("child2");
    root.AddChild(child2);
    Assert.AreEqual(child2, root.GetChild("child2"));
}

[Test]
public void GetChild()
{
    var root = new XmlData("root");
    root.AddChild(new XmlData("child1"));
    var child2 = new XmlData("child2");
    root.AddChild(child2);
    Assert.AreEqual(child2, root.GetChild("child2"));
}