public void RoundtripRepositorySettingsWithNullBackupSettings()
{
var settings = new RepositorySettings(
directory: Directory.FullName,
isTrackingDirty: true,
backupSettings: null,
extension: ".cde",
tempExtension: ".fgh");
var serializer = new DataContractSerializer(settings.GetType());
using Stream stream = PooledMemoryStream.Borrow();
serializer.WriteObject(stream, settings);
stream.Position = 0;
var roundtripped = (RepositorySettings)serializer.ReadObject(stream);
AssertProperties(settings, roundtripped);
}