protected override void Arrange()
{
base.Arrange();
var locator = new Mock <ConfigurationSectionLocator>();
locator.Setup(x => x.ConfigurationSectionNames).Returns(new[] { "testSection" });
Container.RegisterInstance(locator.Object);
var section = new ElementForValidation();
var source = new DesignDictionaryConfigurationSource();
source.Add("testSection", section);
SourceModel = Container.Resolve <ConfigurationSourceModel>();
SourceModel.Load(source);
Section = SourceModel.Sections.Where(s => s.SectionName == "testSection").Single();
}