public void WhenIsNull_ThenThrowException()
 {
     Assert.Throws <ArgumentNullException>(() => _ = SubRipFileExtensions.AnyEntryOverlap(null));
 }
 public void WhenSourceIsNull_ThenThrowException()
 {
     Assert.Throws <ArgumentNullException>(() => _ = SubRipFileExtensions.IsOrderIdSequenceValid(null));
 }