Changed DynamicXml to public (somehow this wasn't checked in before) #U4-U4-1146

Added unit tests for DynamicXml.Find methods which are passing.

src/Umbraco.Tests/DynamicDocument/DynamicXmlTests.cs

@@ -0,0 +1,58 @@
+using System;
+using System.Xml;
+using System.Xml.Linq;
+using Microsoft.CSharp.RuntimeBinder;
+using NUnit.Framework;
+using Umbraco.Core.Dynamics;
+
+namespace Umbraco.Tests.DynamicDocument
+{
+	[TestFixture]
+	public class DynamicXmlTests
+	{
+
+		/// <summary>
+		/// Test the current Core class
+		/// </summary>
+		[Test]
+		public void Find_Test_Core_Class()
+		{
+			RunFindTest(x => new DynamicXml(x));	
+		}
+
+		/// <summary>
+		/// Tests the macroEngines legacy class
+		/// </summary>
+		[Test]
+		public void Find_Test_Legacy_Class()
+		{
+			RunFindTest(x => new global::umbraco.MacroEngines.DynamicXml(x));
+		}
+
+		private void RunFindTest(Func<string, dynamic> getDynamicXml)
+		{
+			var xmlstring = @"<test>
+<item id='1' name='test 1' value='found 1'/>
+<item id='2' name='test 2' value='found 2'/>
+<item id='3' name='test 3' value='found 3'/>
+</test>";
+
+			dynamic dXml = getDynamicXml(xmlstring);
+
+			var result1 = dXml.Find("@name", "test 1");
+			var result2 = dXml.Find("@name", "test 2");
+			var result3 = dXml.Find("@name", "test 3");
+			var result4 = dXml.Find("@name", "dont find");
+
+			Assert.AreEqual("found 1", result1.value);
+			Assert.AreEqual("found 2", result2.value);
+			Assert.AreEqual("found 3", result3.value);
+			Assert.Throws<RuntimeBinderException>(() =>
+			{
+				//this will throw because result4 is not found
+				var temp = result4.value;
+			});
+		}
+
+	}
+}