public void TestEventStateStorage()
{
string s = FileStorageHelper.BeaconEventStateToString("1", BeaconEventType.Enter, DateTimeOffset.Parse("2015-04-16T14:00:00.000+0000"));
Assert.AreEqual("1,1,1429192800000", s);
BackgroundEvent be = FileStorageHelper.BeaconEventStateFromString(s);
Assert.AreEqual("1", be.BeaconId);
Assert.AreEqual(DateTimeOffset.Parse("2015-04-16T14:00:00.000+0000"), be.EventTime);
Assert.AreEqual(BeaconEventType.Enter, be.LastEvent);
Assert.IsNull(FileStorageHelper.BeaconEventStateFromString(""));
Assert.IsNull(FileStorageHelper.BeaconEventStateFromString(null));
}