public TripDescriptionFromTextFileProvider(IPlatformStreamProvider streamProvider)
 {
     if (streamProvider == null)
     {
         throw new ArgumentNullException("streamProvider", "Must have an IPlatformStreamProvider.");
     }
     _streamProvider = streamProvider;
 }
 private TripDescriptionFromTextFileProvider CreateSUT()
 {
     _streamProvider = Isolate.Fake.Instance<IPlatformStreamProvider>();
     return new TripDescriptionFromTextFileProvider(_streamProvider);
 }