private static TzdbStreamData LoadDefaultDataSource()
{
var assembly = typeof(DefaultHolder).Assembly;
using (Stream stream = assembly.GetManifestResourceStream("NodaTime.TimeZones.Tzdb.nzd"))
{
return(TzdbStreamData.FromStream(stream));
}
}
public void InvalidVersion()
{
// It's hard to create a stream that's valid apart from the version, so we'll just
// give one with an invalid version and check that it looks like the right message.
var stream = new MemoryStream(new byte[] { 0, 0, 0, 1 });
var exception = Assert.Throws <InvalidNodaDataException>(() => TzdbStreamData.FromStream(stream));
Assert.IsTrue(exception.Message.Contains("version"));
}
/// <summary>
/// Creates an instance from a stream in the custom Noda Time format. The stream must be readable.
/// </summary>
/// <remarks>
/// <para>
/// The stream is not closed by this method, but will be read from
/// without rewinding. A successful call will read the stream to the end.
/// </para>
/// <para>
/// See the user guide for instructions on how to generate an updated time zone database file from a copy of the
/// (textual) tz database.
/// </para>
/// </remarks>
/// <param name="stream">The stream containing time zone data</param>
/// <returns>A <c>TzdbDateTimeZoneSource</c> providing information from the given stream.</returns>
/// <exception cref="InvalidNodaDataException">The stream contains invalid time zone data, or data which cannot
/// be read by this version of Noda Time.</exception>
/// <exception cref="IOException">Reading from the stream failed.</exception>
/// <exception cref="InvalidOperationException">The supplied stream doesn't support reading.</exception>
public static TzdbDateTimeZoneSource FromStream([NotNull] Stream stream)
{
Preconditions.CheckNotNull(stream, nameof(stream));
return(new TzdbDateTimeZoneSource(TzdbStreamData.FromStream(stream)));
}