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diff --git a/main/src/addins/Xml/Tests/Formatting/XmlFormatterTests.cs b/main/src/addins/Xml/Tests/Formatting/XmlFormatterTests.cs
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+//
+// XmlFormatterTests.cs
+//
+// Author:
+//       Matt Ward <matt.ward@xamarin.com>
+//
+// Copyright (c) 2016 Xamarin Inc. (http://xamarin.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+using MonoDevelop.Ide.Gui.Content;
+using MonoDevelop.Xml.Formatting;
+using NUnit.Framework;
+
+namespace MonoDevelop.Xml.Tests.Formatting
+{
+	[TestFixture]
+	public class XmlFormatterTests
+	{
+		TextStylePolicy textPolicy;
+		XmlFormattingPolicy xmlPolicy;
+
+		[SetUp]
+		public void Init ()
+		{
+			textPolicy = new TextStylePolicy ();
+			xmlPolicy = new XmlFormattingPolicy ();
+		}
+
+		[Test]
+		public void OmitXmlDeclarationIsFalse_XmlDeclarationDoesNotExist_XmlDeclarationIsAdded ()
+		{
+			xmlPolicy.DefaultFormat.OmitXmlDeclaration = false;
+			string input = "<a></a>";
+			string expectedResult = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<a>\n</a>";
+
+			string result = XmlFormatter.FormatXml (textPolicy, xmlPolicy, input);
+
+			Assert.AreEqual (expectedResult, result);
+		}
+
+		[Test]
+		public void OmitXmlDeclarationIsTrue_XmlDeclarationExists_XmlDeclarationRemoved ()
+		{
+			xmlPolicy.DefaultFormat.OmitXmlDeclaration = true;
+			string input = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<a></a>";
+			string expectedResult = "<a>\n</a>";
+
+			string result = XmlFormatter.FormatXml (textPolicy, xmlPolicy, input);
+
+			Assert.AreEqual (expectedResult, result);
+		}
+
+		[Test]
+		public void OmitXmlDeclarationIsFalse_XmlDeclarationExists_XmlDeclarationUnmodified ()
+		{
+			xmlPolicy.DefaultFormat.OmitXmlDeclaration = false;
+			string input = "<?xml version=\"1.0\"?><a></a>";
+			string expectedResult = "<?xml version=\"1.0\"?>\n<a>\n</a>";
+
+			string result = XmlFormatter.FormatXml (textPolicy, xmlPolicy, input);
+
+			Assert.AreEqual (expectedResult, result);
+		}
+	}
+}
+