public void Delegates_to_internal_configuration()
{
var mockInternalConfiguration = new Mock<InternalConfiguration>(null, null, null, null, null);
var initializer = new Mock<IDatabaseInitializer<DbContext>>().Object;
new DbConfiguration(mockInternalConfiguration.Object).SetDatabaseInitializer(initializer);
mockInternalConfiguration.Verify(m => m.RegisterSingleton(initializer));
}