public void Cleanup_EntriesAreOld_RemoveAllEntriesOlderThanGiveupdays(
int giveupdays,
Action<SubtitleStateEntry> removalAction,
SubtitleStateEntry[] entries,
SubtitleState state)
{
var toBeRemoved = entries.Take(2);
toBeRemoved.ForEach(e => e.Timestamp = DateTime.Now.AddDays(-giveupdays - 1));
var toKeep = entries.Skip(2);
toKeep.ForEach(e => e.Timestamp = DateTime.Now);
state.Entries.Clear();
state.Entries.AddRange(entries);
state.Cleanup(giveupdays, removalAction);
Assert.That(state.Entries.Select(s => s.File), Is.EquivalentTo(toKeep.Select(s => s.File)));
}