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using Microsoft.VisualStudio.TestTools.UnitTesting;
using Microsoft.IdentityModel.Clients.ActiveDirectory.Internal.WsTrust;
using System.IO;
using System.Xml.Linq;

namespace Test.ADAL.NET.Unit
{
    [TestClass]
    [DeploymentItem("WsTrustResponse.xml")]
    public class WsTrustTests
    {
        [TestMethod]
        [TestCategory("WsTrustTests")]
        public void TestCreateFromResponseDocument_WhenInputContainsWhitespace_ShouldPreserveWhitespace()
        {
            string sample = File.ReadAllText("WsTrustResponse.xml");
            string characteristic = "\n        <saml:Assertion";
            StringAssert.Contains(sample, characteristic);
            WsTrustResponse resp = WsTrustResponse.CreateFromResponseDocument(
                XDocument.Parse(sample, LoadOptions.PreserveWhitespace), WsTrustVersion.WsTrust2005);
            StringAssert.Contains(resp.Token, characteristic);
        }
    }
}

Add a unit test for the new reserve-whitespace behavior
Add a unit test for the new reserve-whitespace behavior
