private static void assert_has_default_property_values(PostedTimeCollectionModel model)
{
Assert.Equal(0, model.Count);
Assert.Null(model.Current);
Assert.Null(model.CurrentDelta);
Assert.Null(model.Maximum);
Assert.Null(model.Mean);
Assert.Null(model.Minimum);
Assert.Equal(0, model.PersonalBestCount);
Assert.Null(model.Previous);
Assert.Null(model.Range);
Assert.Equal(0, model.SessionBestCount);
Assert.Empty(model.Items);
}