public async Task SeekAndCopyToAsync()
{
Random random = new Random(1);
var data = GenerateData(54321);
using (var memoryStream = new MemoryStream(data, writable: false))
using (var cachingStream = new CachingStream(memoryStream, Ownership.Owns))
{
for (int i = 0; i < 100; i++)
{
int offset = random.Next(data.Length - 100);
Assert.AreEqual(offset, cachingStream.Seek(offset, SeekOrigin.Begin));
using (var destination = new MemoryStream(data.Length))
{
await cachingStream.CopyToAsync(destination);
Assert.AreEqual(data.Skip(offset), destination.ToArray());
}
}
}
}
