public void TestCacheEntryWithNoRecentUse()
{
var e = new CacheEntry();
e.recent_reads = new Queue <DateTime>(); //There used to be an InvalidOperationException when this was empty.
e.loaded = DateTime.UtcNow;
e.sizeInBytes = 100 * 1000;
e.written = DateTime.UtcNow;
e.read_count = 0;
e.recreated_count = 0;
e.cost_ms = 100;
Assert.InRange(e.GetPreservationPriority(), 0.6337f, 0.6338f);
}