public void Filter(string nameFilter)
{
var repository = new SiteRepository(_dbContext, _cache.Object, _logger.Object);
var pagedItems = repository.Filter(1, 20, new OrderBySelector <Site, string>(OrderByType.Ascending, f => f.Name),
f => f.Name.Contains(nameFilter));
Assert.NotEmpty(pagedItems.Items);
Assert.True(pagedItems.Items.TrueForAll(f => f.Name.Contains(nameFilter)));
}