public void Write()
{
var data = GenerateData(1000);
using (var memoryStream = new MemoryStream(data, writable: true))
using (var cachingStream = new CachingStream(memoryStream, Ownership.Owns))
{
Assert.IsFalse(cachingStream.CanWrite);
Assert.Throws <NotSupportedException>(() => cachingStream.SetLength(2000));
Assert.Throws <NotSupportedException>(() => cachingStream.Write(new byte[1], 0, 1));
Assert.Throws <NotSupportedException>(() => cachingStream.WriteByte(1));
Assert.Throws <NotSupportedException>(() => cachingStream.BeginWrite(new byte[1], 0, 1, null !, null));
Assert.Throws <NotSupportedException>(() => cachingStream.WriteAsync(new byte[1], 0, 1));
}
}
