public void TestElementMethods()
{
//GetElement
SimpleElement se = new SimpleElement();
Assert.IsNull(se.GetElement("child1"));
IXmlElement child1 = se.AddElement("child1");
Assert.IsNotNull(se.GetElement("child1"));
//FindElement
Assert.IsNull(se.FindElement("/child2"));
Assert.AreEqual(child1, se.FindElement("/child1"));
//EnsureElement
Assert.AreEqual(se.ElementList.Count, 1);
Assert.IsNotNull(se.EnsureElement("/child2"));
IXmlElement child2 = se.GetElement("child2");
Assert.IsTrue(child2.IsMutable);
Assert.AreEqual(se.ElementList.Count, 2); //element is added
//GetSafeElement
Assert.AreEqual(se.ElementList.Count, 2);
Assert.AreEqual(se, se.GetSafeElement(""));
IXmlElement child3 = se.GetSafeElement("/child3");
Assert.IsNotNull(child3);
Assert.IsFalse(child3.IsMutable);
Assert.AreEqual(se.ElementList.Count, 2); //element is not added
IXmlElement child4 = se.GetSafeElement("/child3/../child4");
Assert.IsNotNull(child4);
Exception e = null;
try
{
se.GetSafeElement(null);
}
catch (Exception ex)
{
e = ex;
}
Assert.IsNotNull(e);
Assert.IsInstanceOf(typeof(ArgumentNullException), e);
e = null;
try
{
se.GetSafeElement("..");
}
catch (Exception ex)
{
e = ex;
}
Assert.IsNotNull(e);
Assert.IsInstanceOf(typeof(ArgumentException), e);
}